EP2354626A1 - Fuel nozzle aggregate composed of base fuel nozzle and interface attachment and modular system consisting of a base fuel nozzle and a number of interface attachments - Google Patents
Fuel nozzle aggregate composed of base fuel nozzle and interface attachment and modular system consisting of a base fuel nozzle and a number of interface attachments Download PDFInfo
- Publication number
- EP2354626A1 EP2354626A1 EP10000919A EP10000919A EP2354626A1 EP 2354626 A1 EP2354626 A1 EP 2354626A1 EP 10000919 A EP10000919 A EP 10000919A EP 10000919 A EP10000919 A EP 10000919A EP 2354626 A1 EP2354626 A1 EP 2354626A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- interface
- base
- valve guide
- nozzle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000446 fuel Substances 0.000 title description 4
- 239000000945 filler Substances 0.000 claims abstract description 53
- 239000007788 liquid Substances 0.000 claims description 24
- 230000000295 complement effect Effects 0.000 claims description 18
- 210000000078 claw Anatomy 0.000 claims description 12
- 238000006073 displacement reaction Methods 0.000 claims description 8
- 230000004941 influx Effects 0.000 claims description 5
- 125000006850 spacer group Chemical group 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 11
- 239000007789 gas Substances 0.000 description 26
- 239000003915 liquefied petroleum gas Substances 0.000 description 13
- 230000008878 coupling Effects 0.000 description 12
- 238000010168 coupling process Methods 0.000 description 12
- 238000005859 coupling reaction Methods 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 3
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000001273 butane Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
- F17C5/02—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with liquefied gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
- F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
- F17C2205/0376—Dispensing pistols
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
- F17C2223/0146—Two-phase
- F17C2223/0153—Liquefied gas, e.g. LPG, GPL
- F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
- F17C2225/01—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the phase
- F17C2225/0146—Two-phase
- F17C2225/0153—Liquefied gas, e.g. LPG, GPL
- F17C2225/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2260/00—Purposes of gas storage and gas handling
- F17C2260/03—Dealing with losses
- F17C2260/035—Dealing with losses of fluid
- F17C2260/036—Avoiding leaks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2265/00—Effects achieved by gas storage or gas handling
- F17C2265/06—Fluid distribution
- F17C2265/065—Fluid distribution for refuelling vehicle fuel tanks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2270/00—Applications
- F17C2270/01—Applications for fluid transport or storage
- F17C2270/0165—Applications for fluid transport or storage on the road
Definitions
- the invention relates to a nozzle assembly for refueling a tank of preferably mobile devices with LPG, in particular for refueling a tank of motor vehicles with LPG.
- the invention further relates to a modular system of a base tap valve and a plurality of interface attachments.
- - Liquefied gas means in particular propane, butane and mixtures thereof.
- normally manually operated dispensing valves are used, which are connected in a liquid-tight and gas-tight manner to the tank neck of the tank.
- the invention is based on the technical problem of specifying a dispensing valve unit of the type mentioned, with which the disadvantages described above can be effectively avoided.
- the invention is further based on the technical problem of specifying a modular system for nozzle units.
- the invention first teaches a nozzle assembly for refueling a tank of preferably mobile devices with LPG, in particular for refueling a tank of motor vehicles with LPG, wherein the bleed valve assembly has a base bleed valve and an interface attachment arranged on the discharge end of the base bleed valve, wherein the interface attachment can be connected to an interface of a tank filler neck of the tank that is complementary to the interface of the interface attachment, wherein the base bleed valve comprises a dispensing tube, an actuating handle and a valve insert arranged at the front end of the dispensing tube, wherein the valve insert has a valve guide with discharge opening for the liquid gas, wherein received in the valve guide, a valve piston and wherein the valve piston closes the discharge opening of the valve guide in the closed state of the base nozzle and wherein upon pressing the Ventli Adjust to an abutment of the tank neck a relative movement or Relatiwerschiebung between valve guide and valve piston takes place, so that the output port of the valve guide is
- valve guide when the valve guide is pressed against the abutment of the filler neck, the valve guide is displaced relative to the valve piston. It is also within the scope of the invention that the valve piston then releases the discharge opening of the valve guide.
- the valve guide is pressed against the abutment of the tank neck, in the context of the invention, on the one hand, an embodiment in which the valve guide or an end-side end of the valve guide is pressed directly against the abutment of the tank neck. According to another embodiment of the invention, however, the valve guide can also be pressed against the abutment of the tank nozzle via an abutment adapter which will be explained below.
- valve guide is supported via the abutment spacer on the abutment of the filler neck. It is within the scope of the invention that an abutment for the valve guide or a pressing of the valve guide to an abutment is mandatory for an output of LPG. It is understood, moreover, that the actuating handle is provided for opening and closing the base nozzle or the nozzle assembly. - The term "when connected” below means the connected to the filler neck or properly connected state of the nozzle assembly.
- the invention is based on the finding that identically constructed or essentially identically constructed base nozzle valves can be provided with different interface attachments.
- the nozzle assembly according to the invention is recommended characterized by a modular design.
- the operation of the base nozzle in different interface essays is identical or substantially identical.
- the interface attachments placed on the base bleed valve each have one of the interfaces mentioned at the beginning.
- an interface attachment is formed as an interface sleeve surrounding the dispensing tube or the valve insert at least in regions.
- EmpfohleneIER engages on the interface sleeve of the actuating handle in its operation, so that a Relatiwerschiebung interface sleeve and valve guide in the direction of the longitudinal axis of the valve guide or the interface sleeve takes place.
- the valve guide is completely or substantially completely surrounded by the interface sleeve with regard to its longitudinal extent.
- an actuation of the actuating handle preferably causes the interface sleeve to be pulled back against the dispensing direction of the liquefied gas relative to the dispensing tube.
- the interface sleeve is advantageously based on actuation of the operating handle on the filler neck and the valve guide is pressed against the abutment of the filler neck, so that subsequently an output of liquefied gas can take place.
- the actuating handle is designed as a pivotable about a pivot axis actuating lever.
- EmpfohleneIER the actuating lever on a stop element, which limits the pivoting of the actuating lever and limits the relative displacement between Ventif Introduction and interface sleeve.
- valve guide in the connected to a filler neck state of the nozzle assembly, the valve guide is pressed upon actuation of the actuating lever and the relative displacement of the valve guide and interface sleeve to an abutment of the tank nozzle, so that the discharge opening of the valve guide is released. It is also within the scope of the invention that in the not connected to the filler neck state of the nozzle assembly, the interface sleeve is displaceable against the dispensing direction of the liquid gas upon actuation of the actuating lever, but the valve guide can not be moved relative to the valve piston due to a lack of abutment and thus a LPG dispensing is not possible.
- valve piston has a valve piston head, which valve piston head in the closed state of the base nozzle or the nozzle assembly abuts a bearing surface surrounding the dispensing opening of the valve guide and closes the dispensing opening in this way.
- the valve piston head Expediently, during the relative displacement of valve guide and valve piston, the valve piston head is released from the contact surface, so that the dispensing opening is released and liquid gas can flow out of the dispensing opening.
- the valve piston head has a peripheral around its circumference valve seal, which expediently in the closed state of the base spigot on the contact surface the discharge opening is present. This valve seal acts in the intact state of the base nozzle as the main seal of the base nozzle.
- the intact condition of the base bleed valve means the condition of the base bleed valve in which the valve piston is undamaged and the valve piston head, in the closed state of the base bleed valve, closes the discharge opening of the valve guide.
- the valve piston head In the case of a closing movement or during the transfer to the closed state, moreover, the valve piston head must displace a certain volume of liquid in the region of the dispensing opening, so that the valve piston is advantageously hydraulically damped during this closing movement.
- a particularly preferred embodiment of the invention is characterized in that in the closed state of the base spigot valve between the valve guide and the dispensing tube or between the valve guide and a nozzle fixed to the dispensing nozzle an additional seal is arranged, which against the influx of liquid from the dispensing nozzle in the direction of discharge opening the valve guide seals.
- the valve seat is suitably screwed into the dispensing tube. It is within the scope of the invention that the additional seal rotates over the circumference of the valve guide.
- This additional seal may be a sealing ring or else a sealing disk.
- valve piston or its valve piston head closes the dispensing opening of the valve guide, wherein the valve seal is preferably provided, which expediently circulates over the circumference of the valve piston or over the circumference of the valve piston head.
- the additional seal between the valve guide and dispensing tube or between the valve guide and the dispensing tube fixed valve seat is provided in the closed state of the base nozzle, which against the influx of Liquefied gas from the dispensing tube in a arranged in front of the dispensing opening discharge space of the valve guide seals. This additional seal advantageously ensures that, in the event of mechanical damage to the base tap valve, a seal against uncontrolled outflow of liquefied gas can nonetheless be achieved.
- the sealing of the dispensing opening of the valve guide by the valve piston head is no longer guaranteed and the relatively small amount of liquid gas located in the dispensing space in front of the dispensing opening can flow out of the dispensing opening.
- the additional seal between the valve guide and dispensing tube or valve seat prevents inflow of additional liquid in the output space of the valve guide and takes over in this case the task as the main seal.
- a spring element which presses the valve guide in the direction of the discharge end of the nozzle assembly.
- the additional seal is always arranged between the valve guide and dispensing tube or between the valve guide and valve seat in the closed state of the base dispensing valve.
- the spring element is designed as a helical spring and it is within the scope of the invention that the spring element or the helical spring acts as a compression spring.
- the additional seal is received in a seal receiving or receiving groove of the valve guide and it is within the scope of the invention that this additional seal rotates over the circumference of the valve guide.
- a further embodiment of the invention is characterized in that the additional seal is arranged with the proviso in the base bleed valve, which is in the closed and intact state of the base nozzle the dispensing tube in liquid gas permeable connection with the closed by the valve piston discharge opening or with the output space.
- the additional seal in the closed and intact state of the base nozzle thus assumes no sealing function between dispensing tube and dispensing opening or dispensing space.
- the additional seal runs around in this embodiment over the scope of the valve guide.
- the additional seal is arranged in front of the end face of the valve seat facing away from the dispensing opening, which in the closed and intact state of the base dispensing valve is the dispensing tube in liquid-gas-permeable connection with the dispensing opening closed by the valve piston or with the dispensing space .
- a spring element is provided, which is recommended designed as a helical spring and presses the valve guide in the direction of the discharge end of the nozzle assembly.
- the valve guide is supported on the valve piston or on the valve piston head.
- the valve guide is pushed or pressed under the action of the spring element in a position in which seals the additional seal against the influx of liquid gas from the dispensing nozzle in the direction of discharge opening of the valve guide.
- the sealing of the discharge opening of the valve guide is no longer guaranteed and the valve guide can no longer be supported on the valve piston head. This has the consequence that the valve guide is pressed under the action of the spring element in the direction of the discharge end of the nozzle assembly and thereby the additional seal in a Position comes, in which it seals between dispensing tube and dispensing space.
- the additional seal is designed as a sealing washer and is sealingly against the valve seat. According to another embodiment, the additional seal is pushed into a sealing position in which it is arranged between the dispensing tube and the valve guide or preferably between the valve seat and the valve guide.
- the interface attachment or the interface sleeve has a connection-side screw thread as an interface, which screw thread can be screwed to a complementary screw thread as a complementary interface of the filler neck.
- the connection-side screw thread of the interface attachment is designed as an internal thread and this internal thread can be screwed onto an external thread of the filler neck. It is recommended that the interfaces be an ACME 1 3/4 "screw thread.
- the interface attachment or the interface sleeve has a connection-side bayonet closure element as an interface, which bayonet closure element can be connected to a complementary bayonet closure element as a complementary interface of the filler neck.
- connection-side bayonet closure element is a longitudinal slot followed by a transverse slot and that the complementary bayonet closure element of the filler neck is a complementary pin which is inserted into the longitudinal slot and then into the usual manner the transverse slot is insertable.
- the interface attachment or has the interface sleeve on the connection side radially outwardly extendable or foldable connection claws on which terminal claws engage in the connected state of the nozzle assembly a connection collar on the filler neck.
- the connection claws essentially form the interface of the interface attachment and the connection collar essentially forms the complementary interface on the filler neck.
- the interfaces are designed according to the Italian jaw clutch DISH. It is within the scope of the invention that the connecting jaws are radially outwardly extendable / foldable upon actuation of the actuating handle or actuating lever.
- the connection collar of the filler neck preferably runs on the inside of a cylindrical projection of the filler neck.
- connection jaws of the filler neck engaging behind in the connected state connecting claws expediently form the abutment for the valve guide when opening the base spigot,
- the above-described embodiment of the interface allows opening the base spigot only if a proper coupling of the interface attachment takes place at the tank neck. In a tilted placement of the nozzle assembly on the filler neck a radially outward extension is not possible.
- the connecting claws block a relative displacement of the valve guide to the valve piston. Therefore, no LPG dispensing is possible.
- the interface attachment or has the interface sleeve on the terminal side over the circumference of the interface attachment distributed detent balls which engage detent balls in the connected state of the nozzle assembly in a locking groove of the filler neck.
- the detent balls thus essentially form the interface of the interface attachment and the detent groove forms in the Essentially the complementary interface of the fuel filler neck. It is within the scope of the invention that the detent balls can be latched into the detent groove of the filler neck when the actuating handle or operating lever is actuated. It is also within the scope of the invention that the above-explained interfaces correspond to the above-mentioned standardized EURO connector.
- the interface attachment or the interface sleeve is rotatable relative to the dispensing tube.
- the interface attachment or the interface sleeve is rotatable about the longitudinal axis of the dispensing tube or about the longitudinal axis of the valve insert. It is within the scope of the invention that the rotatability of the interface attachment is realized in particular in the coupling with screw thread and in the coupling with bayonet lock.
- a proven embodiment of the invention is characterized in that in the connection-side end of the interface attachment or the interface sleeve at least one abutment adapter is added, which abutment spacer in the longitudinal or axial direction of the interface attachment or the dispensing tube is displaceable and that the valve guide can be supported on the abutment of the tank nozzle in the connected state of the nozzle assembly via this abutment spacer.
- the valve guide in the connected condition of the bleed valve assembly can be supported directly on an abutment of the filler neck.
- the valve guide can also be supported on the abutment of the tank nozzle via the aforementioned abutment spacer.
- the axial displaceability of the abutment intermediate piece serves to ensure that the valve guide in not Connected state of the nozzle assembly due to the displaceability no abutment in the abutment adapter finds and thus in the unconnected state a liquid gas output is not possible.
- the invention further teaches a modular system of a base tap and a plurality of interface nozzles, wherein the base bleed valve having a dispensing tube, an actuating handle and a valve core, each interface attachment is connectable to an interface of the filler neck complementary to the interface of the interface attachment and wherein the one base nozzle is selectively combined with one of the interface essays. It is within the scope of the invention that identically constructed and identically operable or substantially identically structured and essentially identically operable base nozzle valves can be combined with various interface attachments.
- the invention is therefore based on the finding that nozzles or basic nozzles of a type and a type of operation can be easily combined with different interfaces or interface essays.
- the similarity of the structure of the base nozzle significantly reduces the effort in the production, testing and repair of the nozzles. Since motor vehicle drivers always find the same operating functions in the dispensing valve assemblies according to the invention, safety-related operating errors can be considerably reduced or minimized.
- the bleed valve assemblies according to the invention are further characterized by a simple and reliable coupling on the filler neck. In this case, a surprisingly high density is ensured and especially in case of mechanical damage to the nozzle assembly, in particular when the valve piston fractures, a functionally reliable tightness of the base nozzle be maintained.
- the amount of liquid gas escaping from the bleed valve chamber when the bleed valve assembly is released from the filler neck can be kept particularly low.
- relaxation volumes of less than 1 cm 3 can be achieved.
- the figures show a nozzle assembly 1 for refueling a tank 2 of a motor vehicle with LPG.
- the bleed valve assembly 1 according to the invention has a base bleed valve 3 and an interface attachment arranged on the delivery end of the base bleed valve 3.
- the interface attachment is formed in the embodiment of the figures as interface sleeve 4, which surrounds the front part of the dispensing tube 5 of the base nozzle 3.
- the interface sleeve 4 can be connected to an interface of a filler neck 6 that is complementary to the interface of the interface sleeve 4.
- the base bleed valve 3 has, in addition to the dispensing tube 5, an operating handle designed as an actuating lever 7 and a valve insert 8, which is accommodated in the front part of the dispensing tube 5.
- a valve seat 9 is fixedly connected to the dispensing tube 5 and preferably screwed into the dispensing tube 5.
- a valve guide 10 is displaceable in its longitudinal direction or axial direction.
- the valve guide 10 has an outlet opening 11 for the liquefied gas.
- a valve piston 12 is accommodated, which in the closed state of the base bleed valve 3 (FIG. Fig. 1 such as Fig. 3 to 6 ) closes the discharge opening 11 of the valve guide 10 with a valve piston head 13.
- valve piston head 13 has a circumferential valve seal 14 which, in the closed state of the base bleed valve 3, rests against a contact surface 15 revolving around the dispensing opening 11 of the valve guide 10 and closes the dispensing opening 11 in a fluid-tight manner.
- the valve guide 10 is displaceable relative to the valve piston 12 in its longitudinal direction or axial direction.
- the valve guide 10 has, moreover, on her tank-side front end on the circumference of the valve guide 10 circumferential pressure seal 17.
- the valve guide 10 is pressed relative to the valve piston 12 to the rear, so that the valve piston head 13 is released from the contact surface 16 and a liquid gas output via the discharge opening 11 of the valve guide 10 possible is.
- This open state of the base nozzle 3 shows the Fig. 2 ,
- the opening of the base nozzle 3 is effected by pivoting the actuating lever 7 from the example in Fig. 1 Position shown in the in the Fig. 2 shown position, the actuating lever 7 is pivotable about a pivot axis 18.
- the actuating lever 7 furthermore has a guided in a slot 19 contact pin 20 which limits the pivoting of the actuating lever 7.
- the operating lever 7 interacts with a retaining detent element 21, which allows easy operation of the dispensing valve assembly 1 with only one hand.
- the actuating lever 7 engages the interface sleeve 4 and upon pivoting of the actuating lever 7 from its closed position (FIG. Fig. 1 such as 4 to 6 ) in its open position ( Fig.
- the interface sleeve 4 has a screw thread designed as an internal thread 22 as an interface.
- the internal thread 22 of the interface sleeve 4 can be screwed onto an external thread 24 as a complementary interface of the filler neck 6.
- This connected or screwed state shows the Fig. 2 , When pivoting the operating lever 7 in the open position according to Fig. 2 , This pulls on the interface sleeve 4 and there is a like support on the filler neck, so that the valve guide 10 is pressed in the direction of tank neck 6.
- Fig. 2 When pivoting the operating lever 7 in the open position according to Fig. 2 , This pulls on the interface sleeve 4 and there is a like support on the filler neck, so that the valve guide 10 is pressed in the direction of tank neck 6.
- valve guide 10 is not supported directly on an abutment 16 of the filler neck 6. Rather, the valve guide 10 presses with its pressure seal 17 against an abutment adapter 25, which in turn is supported in the connected state to the abutment 16 of the filler neck 6. As a result, the valve guide 10 is displaced rearward relative to the valve piston 12, and thus the discharge port 11 is opened to discharge LPG.
- the abutment intermediate piece 25 accommodated in the connection-side end of the interface sleeve 4 is, moreover, displaceable in the longitudinal direction or axial direction of the interface sleeve 4. In the state not connected to a filler neck 6 ( Fig.
- liquid gas can pass from the dispensing tube 5 into the dispensing space 26 of the valve guide 10 arranged in front of the dispensing opening 11.
- the additional seal 27 arranged between the valve guide 10 and the valve seat 9 seals the dispensing space 26 with respect to the interior of the dispensing tube 5.
- the additional seal 27 is received in a receiving groove 28 of the valve guide 10.
- the additional seal 27 is formed as a sealing ring.
- the additional seal 27 may also be designed as a sealing washer.
- the additional seal 27 is of particular importance in the context of the invention.
- the base bleed valve 3 remains tight.
- the valve piston 12 breaks at a point 29, the valve piston head 13 can no longer seal the discharge opening 11 of the valve guide 10.
- the relatively small amount of liquid gas received in the discharge space 26 would escape via the discharge opening 11.
- the additional seal 27 prevents further leakage of liquefied gas from the dispensing tube 5 via the dispensing space 26 and the dispensing opening 11, Thus, the additional seal 27 assumes the function of the main seal in this case.
- the compression spring 30 acting on the valve guide 10 ensures that the valve guide 10 remains in its closed or sealing position.
- the Fig. 4 shows a further embodiment of a dispensing valve assembly according to the invention 1.
- the interface sleeve 4 is a connection-side Bayonet closure element 31 as an interface, which is connectable to a not shown as a pin or pin executed complementary bayonet closure element of the filler neck 6.
- the outer jacket 23 of the interface sleeve 4 for producing the bayonet coupling relative to the dispensing tube 5 is rotatable. The operation is in this embodiment basically the same as in the nozzle assembly 1 after the Fig.
- valve guide 10 In the state connected to the filler neck 6 is pulled when operating or pivoting the operating lever 7 on the interface sleeve 4 and the valve guide 10 is pressed against an abutment 16 of the filler neck 6, so that in the manner already described a liquid gas discharge can take place. Also in the embodiment according to Fig. 4 The valve guide 10 could be supported on the abutment 16 of the filler neck 6 via an abutment adapter 25, not shown here.
- the interface sleeve 4 is designed for a so-called Italian claw coupling.
- a plurality of connection claws 32 are arranged distributed over the circumference of the interface sleeve 4.
- connection claws 32 which form the interface of the interface sleeve 4 engage behind a connection collar, not shown, as a complementary interface of a filler neck 6.
- the valve guide 10 finds the required abutment 16, so that only in the connected state the dispensing valve unit 1 a liquid gas output is possible.
- the interface sleeve is designed according to the EURO plug connection according to EN 13760.
- the interface of the interface sleeve 4 is essentially formed here by latching balls 33 distributed over the circumference of the interface sleeve 4 at the connection-side end. In the connected state of the dispensing valve assembly 1, these locking balls 33 engage in a not shown locking groove as a complementary interface of the filler neck 6 a.
- the latching of the locking balls 33 in the locking groove of the filler neck 6 takes place by actuation or pivoting of the actuating lever 7, which engages or pulls on the interface sleeve 4 for this purpose.
- valve guide 10 Only in the connected and locked state, the valve guide 10 is an abutment 16, so that then a liquid gas output is possible.
- actuating lever 7 interface sleeve 4 otherwise surrounded by an outer housing part 34 which is fixedly connected to the rest of the housing or with the dispensing tube 5 and thus is not displaced in the axial direction upon actuation of the actuating lever 7.
- the housing part 34 pushes the locking balls 33 inwards into the locking groove.
- the base bleed valve 3, in particular with dispensing tube 5, valve insert 8 and operating lever 7 is constructed identically.
- the nozzle units 1 according to these embodiments differ only in the design of their interface sleeve 4, which is adapted in each case to a specific interface.
- the subject of the invention is also a modular system in which optionally different interface attachments or interface sleeves 4 are placed on identically designed base nozzles 3 can be. This achieves the considerable advantages already described above.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
Description
Die Erfindung betrifft ein Zapfventilaggregat zur Betankung eines Tanks von vorzugsweise mobilen Vorrichtungen mit Flüssiggas, insbesondere zur Betankung eines Tanks von Kraftfahrzeugen mit Flüssiggas. Die Erfindung betrifft fernerhin ein modulares System aus einem Basiszapfventil und einer Mehrzahl von Schnittstellenaufsätzen. - Flüssiggas meint insbesondere Propan, Butan und deren Gemische. Zur Betankung von Tanks für Flüssiggas werden normalerweise manuell zu betätigende Zapfventile eingesetzt, die flüssigkeits-und gasdicht mit dem Tankstutzen des Tanks verbunden werden.The invention relates to a nozzle assembly for refueling a tank of preferably mobile devices with LPG, in particular for refueling a tank of motor vehicles with LPG. The invention further relates to a modular system of a base tap valve and a plurality of interface attachments. - Liquefied gas means in particular propane, butane and mixtures thereof. For refueling tanks for liquefied petroleum gas, normally manually operated dispensing valves are used, which are connected in a liquid-tight and gas-tight manner to the tank neck of the tank.
Zwischen den Zapfventilen einerseits und den Tankstutzen der Tanks andererseits gibt es keine einheitlich genormte Schnittstelle, Deshalb werden bislang verschiedenartig aufgebaute Zapfventile mit unterschiedlichen Anschlussschnittstellen hergestellt. In Europa gibt es zum Beispiel drei unterschiedliche, untereinander nicht kompatible Kupplungsarten bzw. Schnittstellen, nämlich das ACME 1 3/4"-Schraubgewinde, die italienische Klauenkupplung DISH und die Bajonettkupplung. Als vierte Kupplungsart bzw. Schnittstelle zwischen Zapfventil und Tankstutzen wird eine gemäß EN 13760 genormte EURO-Steckverbindung eingeführt, die ebenfalls mit den drei anderen Kupplungsarten bzw. Schnittstellen nicht kompatibel ist. Die Fertigung und Prüfung der für die unterschiedlichen Schnittstellen jeweils verschiedenartig aufgebauten Zapfventile ist aufwendig und mit unerwünschten Zwängen verbunden. Diese verschiedenartig aufgebauten Zapfventile erfordern in der Regel eine unterschiedliche Bedienung, so dass es durchaus zu sicherheitsbedenklichen Bedienungsfehlern kommen kann. Das ist vor allem deshalb kritisch, weil die Betankung von Kraftfahrzeugen in vielen Ländern vom Kraftfahrzeugführer selbst vorgenommen wird. Die bekannten Zapfventile weisen im Übrigen den Nachteil auf, dass sie nach mechanischen Beschädigungen, insbesondere des Ventileinsatzes keine ausreichende Dichtigkeit mehr aufweisen. Fernerhin entweichen beim Lösen der Verbindung zwischen Zapfventil und Tankstutzen häufig relativ hohe Flüssiggasmengen in die Umgebung.There is no uniformly standardized interface between the nozzle valves on the one hand and the filler neck of the tanks on the other. Therefore, nozzles of various designs have been produced with different connection interfaces. For example, in Europe, there are three different interchangeable types of couplings and interfaces, namely the ACME 1 3/4 "screw thread, the Italian jaw coupling DISH and the bayonet coupling The fourth type of coupling or interface between the nozzle and filler neck is an EN 13760 standardized EURO plug connection, which is also incompatible with the three other types of couplings or interfaces.The production and testing of each of the various interfaces differently constructed nozzles is complex and associated with undesirable constraints.These differently constructed nozzles require usually a different operation, so that it can certainly lead to safety-related operating errors. This is especially critical because the refueling of Motor vehicles is made in many countries by the motor vehicle driver itself. Incidentally, the known dispensing valves have the disadvantage that they no longer have sufficient tightness after mechanical damage, in particular of the valve insert. Furthermore, when dissolving the connection between the nozzle and filler neck often escape relatively high amounts of LPG into the environment.
Der Erfindung liegt das technische Problem zugrunde, ein Zapfventilaggregat der eingangs genannten Art anzugeben, mit dem die vorstehend beschriebenen Nachteile effektiv vermieden werden können. Der Erfindung liegt weiterhin das technische Problem zugrunde, ein modulares System für Zapfventilaggregate anzugeben.The invention is based on the technical problem of specifying a dispensing valve unit of the type mentioned, with which the disadvantages described above can be effectively avoided. The invention is further based on the technical problem of specifying a modular system for nozzle units.
Zur Lösung des technischen Problems lehrt die Erfindung zunächst ein Zapfventilaggregat zur Betankung eines Tanks von vorzugsweise mobilen Vorrichtungen mit Flüssiggas, insbesondere zur Betankung eines Tanks von Kraftfahrzeugen mit Flüssiggas,
wobei das Zapfventilaggregat ein Basiszapfventil und einen auf dem Ausgabeende des Basiszapfventils angeordneten Schnittstellenaufsatz aufweist, wobei der Schnittstellenaufsatz an eine zu der Schnittstelle des Schnittstellenaufsatzes komplementäre Schnittstelle eines Tankstutzens des Tanks anschließbar ist,
wobei das Basiszapfventil ein Zapfrohr, einen Betätigungsgriff sowie einen am Stirnende des Zapfrohrs angeordneten Ventileinsatz aufweist,
wobei der Ventileinsatz eine Ventilführung mit Ausgabeöffnung für das Flüssiggas aufweist, wobei in der Ventilführung ein Ventilkolben aufgenommen ist und wobei der Ventilkolben im geschlossenen Zustand des Basiszapfventils die Ausgabeöffnung der Ventilführung verschließt
und wobei beim Andrücken der Ventliführung an ein Widerlager des Tankstutzens eine Relativbewegung bzw. Relatiwerschiebung zwischen Ventilführung und Ventilkolben erfolgt, so dass die Ausgabeöffnung der Ventilführung freigegeben wird und Flüssiggas in diesem geöffneten Zustand aus dem Basiszapfventil bzw. aus dem Zapfventilaggregat ausströmen kann.To solve the technical problem, the invention first teaches a nozzle assembly for refueling a tank of preferably mobile devices with LPG, in particular for refueling a tank of motor vehicles with LPG,
wherein the bleed valve assembly has a base bleed valve and an interface attachment arranged on the discharge end of the base bleed valve, wherein the interface attachment can be connected to an interface of a tank filler neck of the tank that is complementary to the interface of the interface attachment,
wherein the base bleed valve comprises a dispensing tube, an actuating handle and a valve insert arranged at the front end of the dispensing tube,
wherein the valve insert has a valve guide with discharge opening for the liquid gas, wherein received in the valve guide, a valve piston and wherein the valve piston closes the discharge opening of the valve guide in the closed state of the base nozzle
and wherein upon pressing the Ventliführung to an abutment of the tank neck a relative movement or Relatiwerschiebung between valve guide and valve piston takes place, so that the output port of the valve guide is released and LPG can flow out of the base bleed valve or from the bleed valve in this open state.
Es liegt im Rahmen der Erfindung, dass beim Andrücken der Ventilführung an das Widerlager des Tankstutzens die Ventitführung relativ zum Ventilkolben verschoben wird. Es liegt weiterhin im Rahmen der Erfindung, dass der Ventilkolben dann die Ausgabeöffnung der Ventilführung freigibt. Dass die Ventilführung an das Widerlager des Tankstutzens angedrückt wird, umfasst im Rahmen der Erfindung zum einen eine Ausführungsform, bei der die Ventilführung bzw. ein stirnseitiges Ende der Ventilführung unmittelbar an das Widerlager des Tankstutzens angedrückt wird. Nach einer anderen Ausführungsform der Erfindung kann die Ventilführung aber auch über ein weiter unten noch erläutertes Widerlager-Zwischenstück an das Widerlager des Tankstutzens angedrückt werden. In diesem Fall stützt sich also die Ventilführung über das Widerlager-Zwischenstück an dem Widerlager des Tankstutzens ab. Es liegt im Rahmen der Erfindung, dass für eine Ausgabe von Flüssiggas ein Widerlager für die Ventilführung bzw. ein Andrücken der Ventilführung an ein Widerlager zwingend erforderlich ist. Es versteht sich im Übrigen, dass der Betätigungsgriff zum Öffnen und Schließen des Basiszapfventils bzw. des Zapfventilaggregates vorgesehen ist. - Der Begriff "im angeschlossenen Zustand" meint nachfolgend den an den Tankstutzen angeschlossenen bzw. ordnungsgemäß angeschlossenen Zustand des Zapfventilaggregates.It is within the scope of the invention that when the valve guide is pressed against the abutment of the filler neck, the valve guide is displaced relative to the valve piston. It is also within the scope of the invention that the valve piston then releases the discharge opening of the valve guide. The fact that the valve guide is pressed against the abutment of the tank neck, in the context of the invention, on the one hand, an embodiment in which the valve guide or an end-side end of the valve guide is pressed directly against the abutment of the tank neck. According to another embodiment of the invention, however, the valve guide can also be pressed against the abutment of the tank nozzle via an abutment adapter which will be explained below. In this case, therefore, the valve guide is supported via the abutment spacer on the abutment of the filler neck. It is within the scope of the invention that an abutment for the valve guide or a pressing of the valve guide to an abutment is mandatory for an output of LPG. It is understood, moreover, that the actuating handle is provided for opening and closing the base nozzle or the nozzle assembly. - The term "when connected" below means the connected to the filler neck or properly connected state of the nozzle assembly.
Der Erfindung liegt die Erkenntnis zugrunde, dass identisch aufgebaute bzw. im Wesentlichen identisch aufgebaute Basiszapfventile mit unterschiedlichen Schnittstellenaufsätzen versehen werden können, Insoweit zeichnet sich das erfindungsgemäße Zapfventilaggregat empfohlenermaßen durch einen modularen Aufbau aus. Vorteilhafterweise ist auch die Bedienung des Basiszapfventils bei unterschiedlichen Schnittstellenaufsätzen identisch bzw. im Wesentlichen identisch. Die auf das Basiszapfventil aufgesetzten Schnittstellenaufsätze weisen insbesondere jeweils eine der eingangs genannten Schnittstellen auf.The invention is based on the finding that identically constructed or essentially identically constructed base nozzle valves can be provided with different interface attachments. In that regard, the nozzle assembly according to the invention is recommended characterized by a modular design. Advantageously, the operation of the base nozzle in different interface essays is identical or substantially identical. In particular, the interface attachments placed on the base bleed valve each have one of the interfaces mentioned at the beginning.
Nach besonders bevorzugter Ausführungsform der Erfindung ist ein Schnittstellenaufsatz als eine das Zapfrohr bzw. den Ventileinsatz zumindest bereichsweise umgebende Schnittstellenhülse ausgebildet. Empfohlenermaßen greift an der Schnittstellenhülse der Betätigungsgriff bei seiner Betätigung an, so dass eine Relatiwerschiebung von Schnittstellenhülse und Ventilführung in Richtung der Längsachse der Ventilführung bzw. der Schnittstellenhülse erfolgt. Zweckmäßigerweise wird die Ventilführung bezüglich ihrer Längserstreckung vollständig oder im Wesentlichen vollständig von der Schnittstellenhülse umgeben. In dem noch nicht an einen Tankstutzen angeschlossenen Zustand des Zapfventilaggregates bewirkt eine Betätigung des Betätigungsgriffes bevorzugt, dass die Schnittstellenhülse entgegen der Ausgaberichtung des Flüssiggases relativ zum Zapfrohr nach hinten gezogen wird. Im bereits an einen Tankstutzen angeschlossenen Zustand des Zapfventilaggregates stützt sich die Schnittstellenhülse zweckmäßigerweise bei Betätigung des Betätigungsgriffes an dem Tankstutzen ab und die Ventilführung wird gegen das Widerlager des Tankstutzens gedrückt, so dass anschließend eine Ausgabe von Flüssiggas erfolgen kann.According to a particularly preferred embodiment of the invention, an interface attachment is formed as an interface sleeve surrounding the dispensing tube or the valve insert at least in regions. Empfohlenermaßen engages on the interface sleeve of the actuating handle in its operation, so that a Relatiwerschiebung interface sleeve and valve guide in the direction of the longitudinal axis of the valve guide or the interface sleeve takes place. Expediently, the valve guide is completely or substantially completely surrounded by the interface sleeve with regard to its longitudinal extent. In the state of the bleed valve assembly not yet connected to a filler neck, an actuation of the actuating handle preferably causes the interface sleeve to be pulled back against the dispensing direction of the liquefied gas relative to the dispensing tube. In already connected to a filler neck state of the nozzle assembly, the interface sleeve is advantageously based on actuation of the operating handle on the filler neck and the valve guide is pressed against the abutment of the filler neck, so that subsequently an output of liquefied gas can take place.
Gemäß bewährter Ausführungsform der Erfindung ist der Betätigungsgriff als um eine Schwenkachse verschwenkbarer Betätigungshebel ausgebildet. Empfohlenermaßen weist der Betätigungshebel ein Anschlagelement auf, das die Verschwenkung des Betätigungshebels begrenzt sowie die Relativverschiebung zwischen Ventifführung und Schnittstellenhülse begrenzt.According to the proven embodiment of the invention, the actuating handle is designed as a pivotable about a pivot axis actuating lever. Empfohlenermaßen, the actuating lever on a stop element, which limits the pivoting of the actuating lever and limits the relative displacement between Ventifführung and interface sleeve.
Es liegt im Rahmen der Erfindung, dass in dem an einen Tankstutzen angeschlossenen Zustand des Zapfventilaggregates die Ventilführung bei Betätigung des Betätigungshebels und bei der Relativverschiebung von Ventilführung und Schnittstellenhülse an ein Widerlager des Tankstutzens angedrückt wird, so dass die Ausgabeöffnung der Ventilführung freigegeben wird. Es liegt fernerhin im Rahmen der Erfindung, dass in dem nicht am Tankstutzen angeschlossenen Zustand des Zapfventilaggregates die Schnittstellenhülse bei Betätigung des Betätigungshebels entgegen der Ausgaberichtung des Flüssiggases verschiebbar ist, wobei aber die Ventilführung aufgrund eines mangelnden Widerlagers nicht relativ zum Ventilkolben verschoben werden kann und somit eine Flüssiggasausgabe nicht möglich ist.It is within the scope of the invention that in the connected to a filler neck state of the nozzle assembly, the valve guide is pressed upon actuation of the actuating lever and the relative displacement of the valve guide and interface sleeve to an abutment of the tank nozzle, so that the discharge opening of the valve guide is released. It is also within the scope of the invention that in the not connected to the filler neck state of the nozzle assembly, the interface sleeve is displaceable against the dispensing direction of the liquid gas upon actuation of the actuating lever, but the valve guide can not be moved relative to the valve piston due to a lack of abutment and thus a LPG dispensing is not possible.
Eine besonders bevorzugte Ausführungsform der Erfindung ist dadurch gekennzeichnet, dass der Ventilkolben einen Ventilkolbenkopf aufweist, welcher Ventilkolbenkopf im geschlossenen Zustand des Basiszapfventils bzw. des Zapfventilaggregates an einer um die Ausgabeöffnung der Ventilführung umlaufenden Anlagefläche anliegt und die Ausgabeöffnung auf diese Weise verschließt. Zweckmäßigerweise kommt bei der Relativverschiebung von Ventilführung und Ventilkolben der Ventilkolbenkopf von der Anlagefläche frei, so dass die Ausgabeöffnung freigegeben wird und Flüssiggas aus der Ausgabeöffnung ausströmen kann. Empfohlenermaßen weist der Ventilkolbenkopf eine um seinen Umfang umlaufende Ventildichtung auf, die zweckmäßigerweise im geschlossenen Zustand des Basiszapfventils an der Anlagefläche der Ausgabeöffnung anliegt. Diese Ventildichtung wirkt im intakten Zustand des Basiszapfventils als Hauptdichtung des Basiszapfventils. Intakter Zustand des Basiszapfventils meint insbesondere den Zustand des Basiszapfventils, in dem der Ventilkolben unbeschädigt ist und der Ventilkolbenkopf im geschlossenen Zustand des Basiszapfventils die Ausgabeöffnung der Ventilführung verschließt. - Bei einer Schließbewegung bzw. bei der Überführung in den geschlossenen Zustand muss im Übrigen der Ventilkolbenkopf im Bereich der Ausgabeöffnung ein gewisses Flüssigkeitsvolumen verdrängen, so dass der Ventilkolben bei dieser Schließbewegung in vorteilhafter Weise hydraulisch gedämpft wird.A particularly preferred embodiment of the invention is characterized in that the valve piston has a valve piston head, which valve piston head in the closed state of the base nozzle or the nozzle assembly abuts a bearing surface surrounding the dispensing opening of the valve guide and closes the dispensing opening in this way. Expediently, during the relative displacement of valve guide and valve piston, the valve piston head is released from the contact surface, so that the dispensing opening is released and liquid gas can flow out of the dispensing opening. Empfohlenermaßen, the valve piston head has a peripheral around its circumference valve seal, which expediently in the closed state of the base spigot on the contact surface the discharge opening is present. This valve seal acts in the intact state of the base nozzle as the main seal of the base nozzle. In particular, the intact condition of the base bleed valve means the condition of the base bleed valve in which the valve piston is undamaged and the valve piston head, in the closed state of the base bleed valve, closes the discharge opening of the valve guide. In the case of a closing movement or during the transfer to the closed state, moreover, the valve piston head must displace a certain volume of liquid in the region of the dispensing opening, so that the valve piston is advantageously hydraulically damped during this closing movement.
Eine besonders bevorzugte Ausführungsform der Erfindung ist dadurch gekennzeichnet, dass im geschlossenen Zustand des Basiszapfventils zwischen der Ventilführung und dem Zapfrohr bzw. zwischen der Ventilführung und einem am Zapfrohr fixierten Ventilsitz eine Zusatzdichtung angeordnet ist, die gegen das Einströmen von Flüssiggas aus dem Zapfrohr in Richtung Ausgabeöffnung der Ventilführung abdichtet. Der Ventilsitz ist zweckmäßigerweise in das Zapfrohr eingeschraubt. Es liegt im Rahmen der Erfindung, dass die Zusatzdichtung über den Umfang der Ventilführung umläuft. Bei dieser Zusatzdichtung kann es sich um einen Dichtring oder aber auch um eine Dichtscheibe handeln. Mit Hilfe der bevorzugten Zusatzdichtung wird gleichsam eine doppelte Abdichtung im geschlossenen Zustand des Basiszapfventils erreicht. Zum einen verschließt der Ventilkolben bzw. sein Ventilkolbenkopf die Ausgabeöffnung der Ventilführung, wobei bevorzugt die Ventildichtung vorgesehen ist, die zweckmäßigerweise über den Umfang des Ventilkolbens bzw. über den Umfang des Ventilkolbenkopfes umläuft. Zum anderen ist im geschlossenen Zustand des Basiszapfventils die Zusatzdichtung zwischen Ventilführung und Zapfrohr bzw. zwischen Ventilführung und am Zapfrohr fixierten Ventilsitz vorgesehen, die gegen das Einströmen von Flüssiggas aus dem Zapfrohr in einen vor der Ausgabeöffnung angeordneten Ausgaberaum der Ventilführung abdichtet. Diese Zusatzdichtung gewährleistet in vorteilhafter Weise, dass bei einer mechanischen Beschädigung des Basiszapfventils nichtsdestoweniger eine Abdichtung gegen unkontrolliertes Ausströmen von Flüssiggas erzielt werden kann. Vor allem bei einem Bruch des Ventilkolbens, insbesondere im Bereich des Ventilkolbenkopfies ist zwar die Abdichtung der Ausgabeöffnung der Ventilführung durch den Ventilkolbenkopf nicht mehr gewährleistet und die im Ausgaberaum vor der Ausgabeöffnung befindliche relativ geringe Flüssiggasmenge kann aus der Ausgabeöffnung ausströmen. Die Zusatzdichtung zwischen Ventilführung und Zapfrohr bzw. Ventilsitz verhindert aber ein Einströmen von weiterem Flüssiggas in den Ausgaberaum der Ventilführung und übernimmt in diesem Fall die Aufgabe als Hauptdichtung.A particularly preferred embodiment of the invention is characterized in that in the closed state of the base spigot valve between the valve guide and the dispensing tube or between the valve guide and a nozzle fixed to the dispensing nozzle an additional seal is arranged, which against the influx of liquid from the dispensing nozzle in the direction of discharge opening the valve guide seals. The valve seat is suitably screwed into the dispensing tube. It is within the scope of the invention that the additional seal rotates over the circumference of the valve guide. This additional seal may be a sealing ring or else a sealing disk. With the help of the preferred additional seal as a double seal is achieved in the closed state of the base nozzle. On the one hand, the valve piston or its valve piston head closes the dispensing opening of the valve guide, wherein the valve seal is preferably provided, which expediently circulates over the circumference of the valve piston or over the circumference of the valve piston head. On the other hand, the additional seal between the valve guide and dispensing tube or between the valve guide and the dispensing tube fixed valve seat is provided in the closed state of the base nozzle, which against the influx of Liquefied gas from the dispensing tube in a arranged in front of the dispensing opening discharge space of the valve guide seals. This additional seal advantageously ensures that, in the event of mechanical damage to the base tap valve, a seal against uncontrolled outflow of liquefied gas can nonetheless be achieved. Especially with a rupture of the valve piston, in particular in the region of the valve piston head, the sealing of the dispensing opening of the valve guide by the valve piston head is no longer guaranteed and the relatively small amount of liquid gas located in the dispensing space in front of the dispensing opening can flow out of the dispensing opening. However, the additional seal between the valve guide and dispensing tube or valve seat prevents inflow of additional liquid in the output space of the valve guide and takes over in this case the task as the main seal.
Gemäß sehr bevorzugter Ausführung der Erfindung ist ein Federelement vorgesehen, das die Ventilführung in Richtung Ausgabeende des Zapfventilaggregates drückt. Dadurch wird bei der vorstehend erläuterten Ausführungsform gewährleistet, dass die Zusatzdichtung im geschlossenen Zustand des Basiszapfventils stets zwischen Ventilführung und Zapfrohr bzw. zwischen Ventilführung und Ventilsitz angeordnet ist. Auf diese Weise wird auch beim Bruch des Ventilkolbens stets eine effektive Abdichtung gegen das Ausströmen von Flüssiggas erzielt. Vorzugsweise ist das Federelement als Schraubenfeder ausgebildet und es liegt im Rahmen der Erfindung, dass das Federelement bzw. die Schraubenfeder als Druckfeder wirkt. Gemäß einer Ausführungsvariante ist die Zusatzdichtung in einer Dichtungsaufnahme bzw. Aufnahmenut der Ventilführung aufgenommen und es liegt im Rahmen der Erfindung, dass diese Zusatzdichtung über den Umfang der Ventilführung umläuft.According to a very preferred embodiment of the invention, a spring element is provided which presses the valve guide in the direction of the discharge end of the nozzle assembly. As a result, it is ensured in the above-described embodiment that the additional seal is always arranged between the valve guide and dispensing tube or between the valve guide and valve seat in the closed state of the base dispensing valve. In this way, an effective seal against the outflow of liquefied gas is always achieved even when breaking the valve piston. Preferably, the spring element is designed as a helical spring and it is within the scope of the invention that the spring element or the helical spring acts as a compression spring. According to one embodiment, the additional seal is received in a seal receiving or receiving groove of the valve guide and it is within the scope of the invention that this additional seal rotates over the circumference of the valve guide.
Eine weitere Ausführungsvariante der Erfindung ist dadurch gekennzeichnet, dass die Zusatzdichtung mit der Maßgabe in dem Basiszapfventil angeordnet ist, das im geschlossenen und intakten Zustand des Basiszapfventils das Zapfrohr in flüssiggasdurchlässiger Verbindung mit der durch den Ventilkolben geschlossenen Ausgabeöffnung bzw. mit dem Ausgaberaum steht. Bei dieser Ausführungsvariante übernimmt die Zusatzdichtung im geschlossenen und intakten Zustand des Basiszapfventils also keine Abdichtungsfunktion zwischen Zapfrohr und Ausgabeöffnung bzw. Ausgaberaum. Zweckmäßigerweise läuft die Zusatzdichtung auch bei dieser Ausführungsvariante über den Umfang der Ventilführung um. Es liegt im Rahmen der Erfindung, dass die Zusatzdichtung vor der der Ausgabeöffnung abgewandten Stirnseite des Ventilsitzes mit der Maßgabe angeordnet ist, das im geschlossenen und intakten Zustand des Basiszapfventils das Zapfrohr in flüssiggasdurchlässiger Verbindung mit der durch den Ventilkolben geschlossenen Ausgabeöffnung bzw. mit dem Ausgaberaum steht. Vorzugsweise ist auch bei dieser Ausführungsvariante ein Federelement vorgesehen, das empfohlenermaßen als Schraubenfeder ausgebildet ist und das die Ventilführung in Richtung Ausgabeende des Zapfventilaggregates drückt. Zweckmäßigerweise stützt sich die Ventilführung dabei am Ventilkolben bzw. am Ventilkolbenkopf ab. Bevorzugt wird bei einem Bruch des Ventilkolbens, insbesondere im Bereich des Ventilkolbenkopfes die Ventilführung unter Einwirkung des Federelementes in eine Position geschoben bzw. gedrückt, in der die Zusatzdichtung gegen das Einströmen von Flüssiggas aus dem Zapfrohr in Richtung Ausgabeöffnung der Ventilführung abdichtet. Bei einem Abbrechen des Ventilkolbenkopfes oder eines Teils des Ventilkolbens mit dem Ventilkolbenkopf ist die Abdichtung der Ausgabeöffnung der Ventilführung nicht mehr gewährleistet und die Ventilführung kann sich nicht mehr an dem Ventilkolbenkopf abstützen. Das hat zur Folge, dass die Ventilführung unter Einwirkung des Federelementes in Richtung Ausgabeende des Zapfventilaggregates gedrückt wird und dabei die Zusatzdichtung in eine Position kommt, in der sie zwischen Zapfrohr und Ausgaberaum abdichtet. Nach einer Ausführungsform ist die Zusatzdichtung dabei als Dichtscheibe ausgeführt und liegt abdichtend an dem Ventilsitz an. Gemäß einer anderen Ausführungsform wird die Zusatzdichtung in eine abdichtende Position geschoben, in der sie zwischen Zapfrohr und Ventilführung bzw. bevorzugt zwischen Ventilsitz und Ventiführung angeordnet ist.A further embodiment of the invention is characterized in that the additional seal is arranged with the proviso in the base bleed valve, which is in the closed and intact state of the base nozzle the dispensing tube in liquid gas permeable connection with the closed by the valve piston discharge opening or with the output space. In this embodiment, the additional seal in the closed and intact state of the base nozzle thus assumes no sealing function between dispensing tube and dispensing opening or dispensing space. Conveniently, the additional seal runs around in this embodiment over the scope of the valve guide. It is within the scope of the invention that the additional seal is arranged in front of the end face of the valve seat facing away from the dispensing opening, which in the closed and intact state of the base dispensing valve is the dispensing tube in liquid-gas-permeable connection with the dispensing opening closed by the valve piston or with the dispensing space , Preferably, in this embodiment, a spring element is provided, which is recommended designed as a helical spring and presses the valve guide in the direction of the discharge end of the nozzle assembly. Expediently, the valve guide is supported on the valve piston or on the valve piston head. Preferably, in a fracture of the valve piston, in particular in the region of the valve piston head, the valve guide is pushed or pressed under the action of the spring element in a position in which seals the additional seal against the influx of liquid gas from the dispensing nozzle in the direction of discharge opening of the valve guide. Upon cancellation of the valve piston head or a part of the valve piston with the valve piston head, the sealing of the discharge opening of the valve guide is no longer guaranteed and the valve guide can no longer be supported on the valve piston head. This has the consequence that the valve guide is pressed under the action of the spring element in the direction of the discharge end of the nozzle assembly and thereby the additional seal in a Position comes, in which it seals between dispensing tube and dispensing space. According to one embodiment, the additional seal is designed as a sealing washer and is sealingly against the valve seat. According to another embodiment, the additional seal is pushed into a sealing position in which it is arranged between the dispensing tube and the valve guide or preferably between the valve seat and the valve guide.
Nach einer ersten bevorzugten Ausführungsform der Erfindung weist der Schnittstellenaufsatz bzw. weist die Schnittstellenhülse ein anschlussseitiges Schraubgewinde als Schnittstelle auf, welches Schraubgewinde an ein Komplementärschraubgewinde als komplementäre Schnittstelle des Tankstutzens anschraubbar ist. Zweckmäßigerweise ist das anschlussseitige Schraubgewinde des Schnittstellenaufsatzes als Innengewinde ausgebildet und dieses Innengewinde ist auf ein Außengewinde des Tankstutzens aufschraubbar. Empfohlenermaßen handelt es sich bei den Schnittstellen um ein ACME 1 3/4"-Schraubgewinde.According to a first preferred embodiment of the invention, the interface attachment or the interface sleeve has a connection-side screw thread as an interface, which screw thread can be screwed to a complementary screw thread as a complementary interface of the filler neck. Conveniently, the connection-side screw thread of the interface attachment is designed as an internal thread and this internal thread can be screwed onto an external thread of the filler neck. It is recommended that the interfaces be an ACME 1 3/4 "screw thread.
Gemäß einer zweiten bevorzugten Ausführungsform der Erfindung weist der Schnittstellenaufsatz bzw. weist die Schnittstellenhülse ein anschlussseitiges Bajonettverschlusselement als Schnittstelle auf, welches Bajonettverschlusselement an ein komplementäres Bajonettverschlusselement als komplementäre Schnittstelle des Tankstutzens anschließbar ist. Es liegt im Rahmen der Erfindung, dass es sich bei dem anschlussseitigen Bajonettverschlusselement in üblicher Weise um einen Längsschlitz mit anschließendem Querschlitz handelt und dass es sich bei dem komplementären Bajonettverschlusselement des Tankstutzens um einen komplementären Stift handelt, der in üblicher Weise in den Längsschlitz und anschließend in den Querschlitz einführbar ist.According to a second preferred embodiment of the invention, the interface attachment or the interface sleeve has a connection-side bayonet closure element as an interface, which bayonet closure element can be connected to a complementary bayonet closure element as a complementary interface of the filler neck. It is within the scope of the invention that the connection-side bayonet closure element is a longitudinal slot followed by a transverse slot and that the complementary bayonet closure element of the filler neck is a complementary pin which is inserted into the longitudinal slot and then into the usual manner the transverse slot is insertable.
Nach einer dritten bevorzugten Ausführungsform der Erfindung weist der Schnittstellenaufsatz bzw. weist die Schnittstellenhülse anschlussseitig radial nach außen ausfahrbare bzw. ausklappbare Anschlussklauen auf, welche Anschlussklauen im angeschlossenen Zustand des Zapfventilaggregates einen Anschlusskragen am Tankstutzen hintergreifen. Hier bilden die Anschlussklauen also im Wesentlichen die Schnittstelle des Schnittstellenaufsatzes und der Anschlusskragen bildet im Wesentlichen die komplementäre Schnittstelle am Tankstutzen. Vorzugsweise sind die Schnittstellen entsprechend der italienischen Klauenkupplung DISH ausgeführt. Es liegt im Rahmen der Erfindung, dass die Anschlussklauen bei Betätigung des Betätigungsgriffs bzw. Betätigungshebels radial nach außen ausfahrbar/ausklappbar sind. Der Anschlusskragen des Tankstutzens läuft bevorzugt auf der Innenseite eines zylinderförmigen Vorsprungs des Tankstutzens um. Die den Anschlusskragen des Tankstutzens im angeschlossenen Zustand hintergreifenden Anschlussklauen bilden zweckmäßigerweise das Widerlager für die Ventilführung beim Öffnen des Basiszapfventils, Die vorstehend erläuterte Ausgestaltung der Schnittstelle erlaubt ein Öffnen des Basiszapfventils nur wenn eine ordnungsgemäße Kupplung des Schnittstellenaufsatzes an den Tankstutzen stattfindet. Bei einem verkanteten Aufsetzen des Zapfventilaggregates auf den Tankstutzen ist ein radial nach außen Ausfahren nicht möglich. Erfindungsgemäß blockieren in diesem Fall die Anschlussklauen eine relative Verschiebung der Ventilführung zum Ventilkolben. Daher ist keine Flüssiggasausgabe möglich.According to a third preferred embodiment of the invention, the interface attachment or has the interface sleeve on the connection side radially outwardly extendable or foldable connection claws on which terminal claws engage in the connected state of the nozzle assembly a connection collar on the filler neck. In this case, the connection claws essentially form the interface of the interface attachment and the connection collar essentially forms the complementary interface on the filler neck. Preferably, the interfaces are designed according to the Italian jaw clutch DISH. It is within the scope of the invention that the connecting jaws are radially outwardly extendable / foldable upon actuation of the actuating handle or actuating lever. The connection collar of the filler neck preferably runs on the inside of a cylindrical projection of the filler neck. The connection jaws of the filler neck engaging behind in the connected state connecting claws expediently form the abutment for the valve guide when opening the base spigot, The above-described embodiment of the interface allows opening the base spigot only if a proper coupling of the interface attachment takes place at the tank neck. In a tilted placement of the nozzle assembly on the filler neck a radially outward extension is not possible. According to the invention, in this case, the connecting claws block a relative displacement of the valve guide to the valve piston. Therefore, no LPG dispensing is possible.
Gemäß einer vierten bevorzugten Ausführungsform der Erfindung weist der Schnittstellenaufsatz bzw. weist die Schnittstellenhülse anschlussseitig über den Umfang des Schnittstellenaufsatzes verteilte Rastkugeln auf, welche Rastkugeln im angeschlossenen Zustand des Zapfventilaggregates in eine Rastnut des Tankstutzens eingreifen. Die Rastkugeln bilden hier also im Wesentlichen die Schnittstelle des Schnittstellenaufsatzes und die Rastnut bildet im Wesentlichen die komplementäre Schnittstelle des Tankstutzens. Es liegt im Rahmen der Erfindung, dass die Rastkugeln bei Betätigen des Betätigungsgriffes bzw. Betätigungshebels in die Rastnut des Tankstutzens einrastbar sind. Es liegt fernerhin im Rahmen der Erfindung, dass die vorstehend erläuterten Schnittstellen der eingangs erwähnten genormten EURO-Steckverbindung entsprechen.According to a fourth preferred embodiment of the invention, the interface attachment or has the interface sleeve on the terminal side over the circumference of the interface attachment distributed detent balls which engage detent balls in the connected state of the nozzle assembly in a locking groove of the filler neck. The detent balls thus essentially form the interface of the interface attachment and the detent groove forms in the Essentially the complementary interface of the fuel filler neck. It is within the scope of the invention that the detent balls can be latched into the detent groove of the filler neck when the actuating handle or operating lever is actuated. It is also within the scope of the invention that the above-explained interfaces correspond to the above-mentioned standardized EURO connector.
Nach einer bevorzugten Ausführungsform der Erfindung ist der Schnittstellenaufsatz bzw. ist die Schnittstellenhülse relativ zum Zapfrohr verdrehbar. Zweckmäßigerweise ist der Schnittstellenaufsatz bzw. ist die Schnittstellenhülse um die Längsachse des Zapfrohres bzw. um die Längsachse des Ventileinsatzes verdrehbar. Es liegt im Rahmen der Erfindung, dass die Verdrehbarkeit des Schnittstellenaufsatzes insbesondere bei der Kupplungsart mit Schraubgewinde und bei der Kupplungsart mit Bajonettverschluss verwirklicht ist.According to a preferred embodiment of the invention, the interface attachment or the interface sleeve is rotatable relative to the dispensing tube. Expediently, the interface attachment or the interface sleeve is rotatable about the longitudinal axis of the dispensing tube or about the longitudinal axis of the valve insert. It is within the scope of the invention that the rotatability of the interface attachment is realized in particular in the coupling with screw thread and in the coupling with bayonet lock.
Eine bewährte Ausführungsform der Erfindung ist dadurch gekennzeichnet, dass in dem anschlussseitigen Ende des Schnittstellenaufsatzes bzw. der Schnittstellenhülse zumindest ein Widerlager-Zwischenstück aufgenommen ist, welches Widerlager-Zwischenstück in Längsrichtung bzw. Axialrichtung des Schnittstellenaufsatzes bzw. des Zapfrohres verschiebbar ist und dass sich die Ventilführung im angeschlossenen Zustand des Zapfventilaggregates über dieses Widerlager-Zwischenstück an dem Widerlager des Tankstutzens abstützen kann. Es wurde bereits oben dargelegt, dass sich die Ventilführung im angeschlossenen Zustand des Zapfventilaggregates zum einen unmittelbar an einem Widerlager des Tankstutzens abstützen kann. Zum anderen kann sich die Ventilführung aber auch über das vorgenannte Widerlager-Zwischenstück am Widerlager des Tankstutzens abstützen. Die axiale Verschiebbarkeit des Widerlager-Zwischenstückes dient dazu, dass die Ventilführung im nicht angeschlossenen Zustand des Zapfventilaggregates aufgrund der Verschiebbarkeit kein Widerlager in dem Widerlager-Zwischenstück findet und somit im nicht angeschlossenen Zustand eine Flüssiggasausgabe nicht möglich ist.A proven embodiment of the invention is characterized in that in the connection-side end of the interface attachment or the interface sleeve at least one abutment adapter is added, which abutment spacer in the longitudinal or axial direction of the interface attachment or the dispensing tube is displaceable and that the valve guide can be supported on the abutment of the tank nozzle in the connected state of the nozzle assembly via this abutment spacer. It has already been stated above that the valve guide in the connected condition of the bleed valve assembly can be supported directly on an abutment of the filler neck. On the other hand, the valve guide can also be supported on the abutment of the tank nozzle via the aforementioned abutment spacer. The axial displaceability of the abutment intermediate piece serves to ensure that the valve guide in not Connected state of the nozzle assembly due to the displaceability no abutment in the abutment adapter finds and thus in the unconnected state a liquid gas output is not possible.
Zur Lösung des technischen Problems lehrt die Erfindung weiterhin ein modulares System aus einem Basiszapfventil und einer Mehrzahl von Schnittstellenaufsätzen, wobei das Basiszapfventil ein Zapfrohr, einen Betätigungsgriff und einen Ventileinsatz aufweist, wobei jeder Schnittstellenaufsatz an eine zu der Schnittstelle des Schnittstellenaufsatzes komplementäre Schnittstelle eines Tankstutzens anschließbar ist und wobei das eine Basiszapfventil wahlweise mit einem der Schnittstellenaufsätze kombinierbar ist. Es liegt im Rahmen der Erfindung, dass identisch aufgebaute und identisch bedienbare bzw. im Wesentlichen identisch aufgebaute und im Wesentlichen identisch bedienbare Basiszapfventile mit verschiedenen Schnittstellenaufsätzen kombiniert werden können.To solve the technical problem, the invention further teaches a modular system of a base tap and a plurality of interface nozzles, wherein the base bleed valve having a dispensing tube, an actuating handle and a valve core, each interface attachment is connectable to an interface of the filler neck complementary to the interface of the interface attachment and wherein the one base nozzle is selectively combined with one of the interface essays. It is within the scope of the invention that identically constructed and identically operable or substantially identically structured and essentially identically operable base nozzle valves can be combined with various interface attachments.
Der Erfindung liegt somit die Erkenntnis zugrunde, dass Zapfventile bzw. Basiszapfventile einer Bauart und einer Bedienungsart problemlos mit unterschiedlichen Schnittstellen bzw. Schnittstellenaufsätzen kombiniert werden können. Die Gleichartigkeit des Aufbaus der Basiszapfventile reduziert den Aufwand bei der Fertigung, Prüfung und auch Reparatur der Zapfventile erheblich. Da Kraftfahrzeugführer bei den erfindungsgemäßen Zapfventilaggregaten stets gleiche Bedienfunktionen vorfinden, können sicherheitsbedenkliche Bedienungsfehler beachtlich reduziert bzw. minimiert werden. Die erfindungsgemäßen Zapfventilaggregate zeichnen sich weiterhin durch eine einfache und funktionssichere Kupplung am Tankstutzen aus. Dabei ist eine überraschend hohe Dichtigkeit gewährleistet und vor allem auch bei mechanischen Beschädigungen des Zapfventilaggregates, insbesondere beim Bruch des Ventilkolbens kann eine funktionssichere Dichtigkeit des Basiszapfventils aufrechterhalten werden. Aufgrund der Konstruktion des Zapfventilaggregates kann die beim Lösen des Zapfventilaggregats vom Tankstutzen aus dem Zapfventilraum entweichende Flüssiggasmenge besonders gering gehalten werden. Beim Entkuppeln von Zapfventilaggregat und Tankstutzen können Entspannungsmengen von unter 1 cm3 erreicht werden. Die weiter oben erläuterte besondere Ausgestaltung der Ausgabeöffnung der Ventilführung und dem darin aufgenommenen Ventilkolbenkopf erlaubt eine vorteilhafte hydraulische Dämpfung des Ventilkolbens beim Schließen des Basiszapfventils, da der Ventilkolben bzw. der Ventilkolbenkopf Flüssigkeit in die Ventilführung verdrängen muss. Hervorzuheben ist auch, dass sich das erfindungsgemäße Zapfventilaggregat mit relativ geringen Herstellungskosten realisieren lässt.The invention is therefore based on the finding that nozzles or basic nozzles of a type and a type of operation can be easily combined with different interfaces or interface essays. The similarity of the structure of the base nozzle significantly reduces the effort in the production, testing and repair of the nozzles. Since motor vehicle drivers always find the same operating functions in the dispensing valve assemblies according to the invention, safety-related operating errors can be considerably reduced or minimized. The bleed valve assemblies according to the invention are further characterized by a simple and reliable coupling on the filler neck. In this case, a surprisingly high density is ensured and especially in case of mechanical damage to the nozzle assembly, in particular when the valve piston fractures, a functionally reliable tightness of the base nozzle be maintained. Due to the construction of the bleed valve assembly, the amount of liquid gas escaping from the bleed valve chamber when the bleed valve assembly is released from the filler neck can be kept particularly low. When uncoupling the dispensing valve unit and filler neck, relaxation volumes of less than 1 cm 3 can be achieved. The above-explained particular embodiment of the discharge opening of the valve guide and the valve piston head accommodated therein permits advantageous hydraulic damping of the valve piston when the base nozzle is closed, since the valve piston or the valve piston head must displace liquid into the valve guide. It should also be emphasized that the bleed valve assembly according to the invention can be realized with relatively low production costs.
Nachfolgend wird die Erfindung anhand einer lediglich ein Ausführungsbeispiel darstellenden Zeichnung näher erläutert. Es zeigen in schematischer Darstellung:
- Fig. 1
- einen Schnitt durch ein erfindungsgemäßes Zapfvenfilaggregat mit Schraubgewinde-Schnittstelle im geschlossenen Zustand,
- Fig. 2
- den Gegenstand nach
Fig. 1 im geöffneten Zustand, - Fig. 3
- eine vergrößerte Darstellung eines Ventileinsatzes in der Funktionsstellung gemäß
Fig. 1 , - Fig. 4
- einen Schnitt durch ein erfindungsgemäßes Zapfventilaggregat mit Bajonettverschluss-Schnittstelle im geschlossenen Zustand,
- Fig. 5
- den Gegenstand nach
Fig. 4 mit Klauenkupplung-Schnittstelle und
- Fig. 6
- den Gegenstand gemäß
Fig. 4 mit Rastkugel-Schnittstelle.
- Fig. 1
- a section through an inventive Zapfvenfilaggregat with screw thread interface in the closed state,
- Fig. 2
- the object after
Fig. 1 in the open state, - Fig. 3
- an enlarged view of a valve insert in the functional position according to
Fig. 1 . - Fig. 4
- a section through an inventive bleed valve assembly with bayonet lock interface in the closed state,
- Fig. 5
- the object after
Fig. 4 with jaw clutch interface and
- Fig. 6
- the object according to
Fig. 4 with detent ball interface.
Die Figuren zeigen ein Zapfventilaggregat 1 zur Betankung eines Tanks 2 eines Kraftfahrzeuges mit Flüssiggas. Das erfindungsgemäße Zapfventilaggregat 1 weist ein Basiszapfventil 3 und einen auf dem Ausgabeende des Basiszapfventils 3 angeordneten Schnittstellenaufsatz auf. Der Schnittstellenaufsatz ist im Ausführungsbeispiel nach den Figuren als Schnittstellenhülse 4 ausgebildet, die den vorderen Teil des Zapfrohres 5 des Basiszapfventils 3 umgibt. Die Schnittstellenhülse 4 ist an eine zu der Schnittstelle der Schnittstellenhülse 4 komplementäre Schnittstelle eines Tankstutzens 6 anschließbar. Das Basiszapfventil 3 weist neben dem Zapfrohr 5 einen als Betätigungshebel 7 ausgebildeten Betätigungsgriff auf sowie einen Ventileinsatz 8, der im vorderen Teil des Zapfrohres 5 aufgenommen ist. Im Ausführungsbeispiel nach den Figuren ist ein Ventilsitz 9 fest mit dem Zapfrohr 5 verbunden und vorzugsweise in das Zapfrohr 5 eingeschraubt. Relativ zu diesem Ventilsitz 9 ist eine Ventilführung 10 in ihrer Längsrichtung bzw. Axialrichtung verschiebbar. Die Ventilführung 10 weist eine Ausgabeöffnung 11 für das Flüssiggas auf. In der Ventilführung 10 ist ein Ventilkolben 12 aufgenommen, der im geschlossenen Zustand des Basiszapfventils 3 (
Die Ventilführung 10 ist relativ zum Ventilkolben 12 in ihrer Längsrichtung bzw. Axialrichtung verschiebbar. Die Ventilführung 10 weist im Übrigen an ihrem tankseitigen Stirnende eine über den Umfang der Ventilführung 10 umlaufende Druckdichtung 17 auf. Beim Andrücken der Ventilführung 10 bzw. der Druckdichtung 17 an ein Widerlager 16 eines Tankstutzens 6 wird die Ventilführung 10 relativ zum Ventilkolben 12 nach hinten gedrückt, so dass der Ventilkolbenkopf 13 von der Anlagefläche 16 freikommt und eine Flüssiggasausgabe über die Ausgabeöffnung 11 der Ventilführung 10 möglich ist. Diesen geöffneten Zustand des Basiszapfventils 3 zeigt die
Die Öffnung des Basiszapfventils 3 erfolgt durch Verschwenkung des Betätigungshebels 7 aus der beispielsweise in
Im Ausführungsbeispiel nach den
Im geöffneten Zustand des Basiszapfventils 3 kann Flüssiggas aus dem Zapfrohr 5 in den vor der Ausgabeöffnung 11 angeordneten Ausgaberaum 26 der Ventilführung 10 gelangen. Im geschlossenen Zustand des Basiszapfventils 3 (s. insbesondere
Die
Bei der Ausführungsform nach
Bei der Ausführungsform des Zapfventilaggregates 1 nach
Bei einer vergleichenden Betrachtung der Ausführungsformen des erfindungsgemäßen Zapfventilaggregates 1 gemäß den
Claims (15)
wobei das Zapfventilaggregat (1) ein Basiszapfventil (3) und einen auf dem Ausgabeende des Basiszapfventils (3) angeordneten Schnittstellenaufsatz aufweist, wobei der Schnittstellenaufsatz an eine zu der Schnittstelle des Schnittstellenaufsatzes komplementäre Schnittstelle eines Tankstutzens (6) des Tanks (2) anschließbar ist,
wobei das Basiszapfventil (3) ein Zapfrohr (5) einen Betätigungsgriff sowie einen am Stirnende des Zapfrohres (5) angeordneten Ventileinsatz (8) aufweist,
wobei der Ventileinsatz (8) eine Ventilführung (10) mit Ausgabeöffnung (11) für das Flüssiggas aufweist, wobei in der Ventilführung (10) ein Ventilkolben (12) aufgenommen ist und wobei der Ventilkolben (12) im geschlossenen Zustand des Basiszapfventils (3) die Ausgabeöffnung (11) der Ventilführung (10) verschließt
und wobei beim Andrücken der Ventilführung (10) an ein Widerlager (16) des Tankstutzens (6) eine Relativbewegung bzw. Relativverschiebung zwischen Ventilführung (10) und Ventilkolben (12) erfolgt, so dass die Ausgabeöffnung (11) der Ventifführung (10) freigegeben wird und Flüssiggas in diesem geöffneten Zustand aus dem Basiszapfventil (3) bzw. aus dem Zapfventilaggregat (1) ausströmen kann.Tap valve unit (1) for refueling a tank (2) of preferably mobile devices with liquefied gas, in particular for refueling a tank (2) of motor vehicles with liquefied gas,
wherein the bleed valve assembly (1) has a base bleed valve (3) and an interface attachment arranged on the discharge end of the base bleed valve (3), the interface attachment being connectable to an interface of a filler neck (6) of the tank (2) that is complementary to the interface of the interface attachment,
wherein the base bleed valve (3) has a dispensing tube (5) an actuating handle and a valve insert (8) arranged at the front end of the dispensing tube (5),
the valve insert (8) having a valve guide (10) with discharge opening (11) for the liquefied gas, wherein a valve piston (12) is received in the valve guide (10) and wherein the valve piston (12) in the closed state of the base tap valve (3) the discharge opening (11) of the valve guide (10) closes
and wherein upon pressing the valve guide (10) to an abutment (16) of the tank nozzle (6), a relative movement or relative displacement between valve guide (10) and valve piston (12) takes place, so that the discharge opening (11) of the Ventifführung (10) released is and LPG in this open state from the base bleed valve (3) or from the bleed valve assembly (1) can flow out.
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL10000919T PL2354626T3 (en) | 2010-01-29 | 2010-01-29 | Fuel nozzle aggregate composed of base fuel nozzle and interface attachment and modular system consisting of a base fuel nozzle and a number of interface attachments |
ES10000919.0T ES2438616T3 (en) | 2010-01-29 | 2010-01-29 | Boquerel group of base nozzle and interface overlay and modular system of a base nozzle and multiple interface overlays |
EP10000919.0A EP2354626B1 (en) | 2010-01-29 | 2010-01-29 | Fuel nozzle aggregate composed of base fuel nozzle and interface attachment and modular system consisting of a base fuel nozzle and a number of interface attachments |
DK10000919.0T DK2354626T3 (en) | 2010-01-29 | 2010-01-29 | Filler gun assembly of base filler gun and interface application and modular system of a base filler gun and a plurality of interface applications |
PT100009190T PT2354626E (en) | 2010-01-29 | 2010-01-29 | Fuel nozzle aggregate composed of base fuel nozzle and interface attachment and modular system consisting of a base fuel nozzle and a number of interface attachments |
AU2011200371A AU2011200371B2 (en) | 2010-01-29 | 2011-01-28 | Fuel hose nozzle with a valve and end fitting as well as modular system having a valve and a plurality of end fittings |
CA2729413A CA2729413C (en) | 2010-01-29 | 2011-01-28 | Fuel hose nozzle with a valve and end fitting |
NZ590776A NZ590776A (en) | 2010-01-29 | 2011-01-28 | Fuel hose nozzle with a valve, end fitting, at least one upstream seal and a spring element |
US13/016,968 US8863791B2 (en) | 2010-01-29 | 2011-01-29 | Hose fuel nozzle |
HK12100088.9A HK1162201A1 (en) | 2010-01-29 | 2012-01-05 | Fuel nozzle aggregate composed of base fuel nozzle and interface attachment and modular system consisting of a base fuel nozzle and a number of interface attachments |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP10000919.0A EP2354626B1 (en) | 2010-01-29 | 2010-01-29 | Fuel nozzle aggregate composed of base fuel nozzle and interface attachment and modular system consisting of a base fuel nozzle and a number of interface attachments |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2354626A1 true EP2354626A1 (en) | 2011-08-10 |
EP2354626B1 EP2354626B1 (en) | 2013-07-03 |
Family
ID=42167514
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10000919.0A Active EP2354626B1 (en) | 2010-01-29 | 2010-01-29 | Fuel nozzle aggregate composed of base fuel nozzle and interface attachment and modular system consisting of a base fuel nozzle and a number of interface attachments |
Country Status (10)
Country | Link |
---|---|
US (1) | US8863791B2 (en) |
EP (1) | EP2354626B1 (en) |
AU (1) | AU2011200371B2 (en) |
CA (1) | CA2729413C (en) |
DK (1) | DK2354626T3 (en) |
ES (1) | ES2438616T3 (en) |
HK (1) | HK1162201A1 (en) |
NZ (1) | NZ590776A (en) |
PL (1) | PL2354626T3 (en) |
PT (1) | PT2354626E (en) |
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EP2574595A1 (en) * | 2011-09-30 | 2013-04-03 | Elaflex Hiby Tanktechnik GmbH & Co. | Refuelling nozzle |
WO2015130208A1 (en) | 2014-02-26 | 2015-09-03 | Identic Ab | Dispensing device |
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US10737928B2 (en) | 2018-02-23 | 2020-08-11 | Husky Corporation | Nozzle for delivery of auxiliary or additive fluid for treating exhaust for a diesel motor for autos or truck vehicle or the like |
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WO2020236938A1 (en) | 2019-05-20 | 2020-11-26 | Gilbarco Inc. | Fuel dispensing nozzle having single-handed hold open mechanism |
USD893676S1 (en) | 2019-05-20 | 2020-08-18 | Gilbarco Inc. | Fuel dispenser nozzle |
USD898869S1 (en) | 2019-05-20 | 2020-10-13 | Gilbarco Inc. | Fuel dispenser nozzle |
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- 2010-01-29 DK DK10000919.0T patent/DK2354626T3/en active
- 2010-01-29 EP EP10000919.0A patent/EP2354626B1/en active Active
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2011
- 2011-01-28 NZ NZ590776A patent/NZ590776A/en unknown
- 2011-01-28 AU AU2011200371A patent/AU2011200371B2/en active Active
- 2011-01-28 CA CA2729413A patent/CA2729413C/en active Active
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Also Published As
Publication number | Publication date |
---|---|
ES2438616T3 (en) | 2014-01-17 |
PT2354626E (en) | 2013-10-07 |
CA2729413A1 (en) | 2011-07-29 |
NZ590776A (en) | 2011-10-28 |
DK2354626T3 (en) | 2013-09-30 |
HK1162201A1 (en) | 2012-08-24 |
EP2354626B1 (en) | 2013-07-03 |
AU2011200371A1 (en) | 2011-08-18 |
PL2354626T3 (en) | 2013-12-31 |
US8863791B2 (en) | 2014-10-21 |
US20110186176A1 (en) | 2011-08-04 |
CA2729413C (en) | 2017-08-01 |
AU2011200371B2 (en) | 2016-02-25 |
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