EP3014111A1 - Druckregelventil mit führung im ventilkörper - Google Patents
Druckregelventil mit führung im ventilkörperInfo
- Publication number
- EP3014111A1 EP3014111A1 EP14721324.3A EP14721324A EP3014111A1 EP 3014111 A1 EP3014111 A1 EP 3014111A1 EP 14721324 A EP14721324 A EP 14721324A EP 3014111 A1 EP3014111 A1 EP 3014111A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- actuator
- pressure control
- pin
- actuating element
- 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.)
- Withdrawn
Links
- 238000007789 sealing Methods 0.000 claims abstract description 24
- 239000012530 fluid Substances 0.000 claims abstract description 21
- 230000001105 regulatory effect Effects 0.000 claims description 18
- 125000006850 spacer group Chemical group 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000004049 embossing Methods 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
- F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/0012—Valves
- F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
- F02M63/0033—Lift valves, i.e. having a valve member that moves perpendicularly to the plane of the valve seat
- F02M63/0036—Lift valves, i.e. having a valve member that moves perpendicularly to the plane of the valve seat with spherical or partly spherical shaped valve member ends
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/0012—Valves
- F02M63/007—Details not provided for in, or of interest apart from, the apparatus of the groups F02M63/0014 - F02M63/0059
- F02M63/0071—Details not provided for in, or of interest apart from, the apparatus of the groups F02M63/0014 - F02M63/0059 characterised by guiding or centering means in valves including the absence of any guiding means, e.g. "flying arrangements"
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
- F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails
- F02M63/023—Means for varying pressure in common rails
- F02M63/0235—Means for varying pressure in common rails by bleeding fuel pressure
- F02M63/025—Means for varying pressure in common rails by bleeding fuel pressure from the common rail
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
- F02M59/46—Valves
- F02M59/466—Electrically operated valves, e.g. using electromagnetic or piezoelectric operating means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/0012—Valves
- F02M63/0014—Valves characterised by the valve actuating means
- F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
- F02M63/0017—Valves characterised by the valve actuating means electrical, e.g. using solenoid using electromagnetic operating means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/0012—Valves
- F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
- F02M63/0043—Two-way valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/0012—Valves
- F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
- F02M63/005—Pressure relief valves
- F02M63/0052—Pressure relief valves with means for adjusting the opening pressure, e.g. electrically controlled
Definitions
- the invention relates to a pressure control valve, for example, in a
- Fuel supply system of a vehicle is used.
- pressure control valves are used, for example, to regulate a pressure in a high pressure region of a common rail injection system at a certain level.
- a pressure regulating valve usually has an actuator in the form of an electromagnet, which can move a valve pin or pressure pin in a valve pin bore and a
- Sealing element such as a valve ball, by the magnetic force in one
- Valve seat holds to close the pressure control valve.
- valve pin In known pressure control valves, the valve pin is held in an axial guide which is embodied in a separate component from the valve seat, whereby an axial offset can be present between the guide of the valve pin and the valve seat. In most cases, the interface between the valve pin and the sealing element is therefore designed so that the lateral
- the dome is stamped on the valve pin in the assembled state to compensate for the axial offset. Also become tolerances with respect to coaxiality for a valve body, a
- Valve housing and the valve pin concentrated. These measures are usually associated with increased costs and / or deteriorated output.
- the invention relates to a pressure control valve, which can be installed, for example, in the housing of a high pressure pump of a common rail injection system.
- the pressure regulating valve comprises a housing having an inlet opening and an outlet opening; one in
- valve pin Housing guided valve pin with an actuator; a sealing element at one end of the actuating element, which is designed to close a valve seat upon movement of the valve pin, so that a fluid flow between the inlet opening and the outlet opening is interrupted.
- the valve seat and an axial guide of the actuating element are of a
- the actuator can be performed in the same component in which the valve seat is included.
- an axial offset between the guide of the actuating element and the valve seat can be avoided, which by a simplified manufacturing process at a cost reductions ucitation can lead.
- a better axial alignment generally leads to a centric force introduction to the actuating element and / or the sealing element and thus to a reduction of wear and hysteresis.
- the tightness of the valve can be improved.
- expensive, non-robust method such as the internal embossing of the actuating element on the sealing element, can be omitted in the manufacture of the pressure regulating valve.
- Actuator and the valve seat can by machining the guide and valve seat with a single tool (for example, a
- Step tool can be achieved.
- the valve body may be a part of the housing in which the
- Sealing element for example, a ball
- the valve seat for example, a conical surface
- a guide for the actuator or more generally a guide for the valve pin may be an axial bore / opening in the valve body or housing. This bore or opening may have the same cross-sectional area as the actuating element or the valve pin.
- the valve body the senor body
- Actuator is arranged. For example, when the pressure regulating valve is in the open state, the fluid can flow from the inlet opening into a space in front of the actuating element and leave the pressure regulating valve there through the outlet opening again.
- the pressure regulating valve further comprises a spring in the valve body, which is designed to
- the valve pin comprises an anchor pin which is supported on the actuating element.
- the valve pin may comprise several parts.
- the pressure regulating valve may comprise an actuator for moving the anchor pin, which may be, for example, a coil or an electromagnet. The separate from the anchor pin actuator can
- valve (For example, via an intermediate element or a cap on the anchor pin) be supported on the anchor pin and be moved by this with.
- fluid such as fuel
- the valve When the valve is open, i.e., the seal member is not seated on the valve seat, fluid, such as fuel, may flow between the input port and the discharge port, and a pressure in front of the input port may be relieved.
- the housing comprises a separate housing part separated from the valve body with a guide for the
- Anchor pin The housing can also be constructed in several parts. In this way, the two housing parts can be made of different materials.
- the guide for the actuator is integrated into the valve body, which is usually made of a hard material to prevent wear of the valve seat.
- the further housing part may be made of a softer material.
- the other housing part may be softer.
- the magnetic force can be increased and material and costs in the area of the magnet can be saved.
- the valve body is sleeve-like pushed over the further housing part and connected thereto.
- the valve body may be constructed, for example, cup-like, wherein the inlet opening is arranged in its bottom. With a part of its wall, the valve body can be screwed onto the further housing part.
- the pressure regulating valve further comprises a spacer disc between the valve body and the further housing part. With this disc, the distance between the sealing element and the valve set can be adjusted.
- the pressure regulating valve further comprises an anchor pin cap between the anchor pin and the
- the anchor pin cap can act as a mechanical power transmission element between the anchor pin and the actuator. If the anchor pin is hollow and designed to conduct fluid, the anchor pin cap may additionally have a through opening through which fluid can be introduced into the anchor pin. But it is also possible that a hollow anchor pin has lateral openings into which the fluid can flow.
- the actuating element has at least one side channel, so that fluid can flow past the actuating element through the guide for the actuating element. In this way, fluid can flow in the direction of the anchor pin and from there in the direction of the discharge opening.
- the actuating element may be a body with a cylindrical basic shape, which may have a tip at the end with the sealing element. In this tip, there may be a dome that can accommodate the sealing element.
- the actuator may be molded by MIM (metal injection molding).
- the valve pin is at least partially hollow and provides a connection for the fluid to the discharge opening.
- the valve pin can be designed as a tube.
- the sealing element comprises a valve ball which is separate from the actuating element. This can be located in a dome at the top of the actuator. But it is also possible that the sealing element is part of the actuating element or with this
- Fig. 1 shows a longitudinal section through a pressure regulating valve according to a
- Fig. 2 shows a longitudinal section through a pressure regulating valve according to another embodiment of the invention.
- Fig. 3 shows a longitudinal section through a portion of a pressure regulating valve according to another embodiment of the invention.
- Fig. 4A shows a side view of an actuating element for a
- FIG. 4B shows a sectional view of the actuator of Fig. 4A.
- Fig. 4C shows a front view of the actuator of Fig. 4A.
- FIG. 4D shows a perspective view of the actuator of FIG. 4A.
- Fig. 1 shows a longitudinal section through a pressure regulating valve 10, which comprises a multi-part pressure pin or valve pin 12 which can be pressed by means of magnetic force against a valve seat 14 to a flow of a fluid (such as
- Fuel for a vehicle from an input port 16 into an outflow port 18.
- the valve pin 12 has an anchor pin 12a and an actuator 12b, which are arranged one behind the other in a multi-part housing 20, are guided by this in an axial direction A and in the axial direction A. aligned axially.
- the anchor pin 12a has a smaller diameter than the actuator 12b.
- the anchor pin 12a is in a first housing part 20a and the
- Actuating element 12b is guided in a second housing part 20b or valve body 20b, wherein the valve body 20a is connected to the first housing part 20a via a screw connection 22. Between the housing part 20a and the valve body 20b, a sealing ring 23 is arranged. In the first housing part 20a is an axial guide opening 24 for
- the anchor pin 12a In the second housing part 20b is an axial guide opening 26 for guiding the actuating element 12b.
- the two guide openings each have the same inner diameter as the corresponding outer diameter of the anchor pin 12 a and
- an actuator 28 in the form of a coil surrounding the anchor pin 12a coil 28 is arranged, which generates a magnetic field when energized, which acts on an anchor plate 30 which is attached to one end of the anchor pin 12a.
- the anchor plate 30 is disposed in an opening 32 in the housing 20, which is formed between a valve cover 34 and the housing part 20 a.
- the valve cover 34 is placed on the housing part 20a. Between the housing part 20 a and the valve cover 34, a further sealing ring 36 is arranged.
- valve cover 34 provides the axial outflow opening 18, which is opposite to the axial inlet opening 16. Further, the valve cover 34 has an electrical interface 38 in which electrical contacts, such as
- Plug pins are arranged to energize the coil 28.
- the valve seat 14 is formed in the valve body 20b, for example in the form of a conical seat.
- the valve seat 14 is located in the axial direction A.
- valve seat 14th opens and extends through the valve body 20b in the axial direction A, is covered with a cup-shaped filter 44 which is fixed to the valve body 20b.
- the pressure regulating valve 10 can be fixed by means of the valve body 20b in a rail tube 46 of a common rail system, for example via a
- Shim 50 is arranged, with which the distance between the valve tip 40 and the valve seat 14 can be adjusted in the axial direction.
- an anchor pin cap 52 is attached, which is discontinued at one end 54 of the actuating element 12b.
- Anchor plate 30 together with the anchor pin 12a in the axial direction A away from the valve seat 14.
- the actuating element 12b with the valve ball 42 is also moved in this direction.
- valve pin 12 serve as its components, the anchor pin 12a, the anchor pin cap 46 and the actuator 12b, not only for
- the anchor pin 12a is hollow or tubular and has a hollow channel 58 in its interior.
- the actuator 12b has lateral, axial channels 60 and grooves 60, respectively.
- the anchor pin cap 46 is adapted to fluid flow out of the
- fluid can now flow in a substantially axial fluid flow from the inlet opening 16 past the valve ball 42 through the side channels 60, is then deflected by the anchor pin cap 46 in the hollow channel 58 of the anchor pin 12a to there in the direction of
- FIG. 2 shows a further embodiment of a pressure regulating valve 10, in which the actuating element 12b has an integrally formed sealing element 42 '. Since the guide opening 26 and the valve seat 14 are arranged in the same component 20b, this allows a much more precise position of these two components 12b, 14 to each other. In this way, the sealing element 42 'already at
- Guide opening 26 is disposed between the valve seat 14 and the actuator 12 b, which can push the actuator 12 b in the direction of the anchor pin 12.
- the anchor pin plate 52 'of Fig. 2 has no openings, but closes the end of the anchor pin 12a. Instead, the anchor pin 12a has lateral openings 66 through the fluid flowing on the actuator 12b
- the outer diameter of the anchor pin 12a is greater than the outer diameter of the actuating element.
- the pressure control valve of FIG. 2 may be constructed the same as that of FIG. 1.
- FIG. 3 shows a front section of a further embodiment of a pressure regulating valve 10, in which the actuating element 12b has no side channels, but the fluid flows directly from a Abêtraum 68 between the actuating element 12b and the valve seat 14 in the outflow openings 18, the side and in Radial direction in the valve body 20b are provided.
- the sealing element 42 in the form of a
- Valve ball can be arranged in a cap 70 in the tip 40 of the actuator 12 b. Due to the good centering by the guide 26, the cap 70 may be prefabricated in the actuator 12b.
- Another advantage is the ability to interpret the hardness of the actuator 12b regardless of the depth of the cap 68.
- the actuator 12b can be designed harder and thus be more robust against transport and handling damage.
- the actuating element 12b has at its end 54 in the direction of the anchor pin 12a a spherical surface with a radius R.
- the radius R is designed so that the center of the theoretical sphere is identical to the center of the dome 70. This ensures that the introduction of force from the actuator 22 to the actuating element 12b and from the actuating element 12b to the sealing element 42 is always centric, even if the actuating element 12b tilts slightly within the clearance of the guide 26.
- the sealing element 42 When opening and closing the valve 10, the sealing element 42 is taken over the dome 70 from the actuator 12b. Especially when closing is ensured thanks to the good coaxiality between the guide 23 and the valve seat 14 that the sealing element 42 hits the valve seat 14 centrally. Thus, it is avoided that the valve ball 42 must slide with significant friction losses along one side of the valve seat 14 and that the
- Actuator 12b canted due to the lateral reaction forces. Consequently, the robustness increases over a closing hysteresis.
- the pressure control valve of FIG. 3 may be constructed the same as that of FIG. 1 or 2.
- Figs. 4A to 4D show the actuator 12b from different views.
- the actuating element has a cylindrical base body, which merges at one end into a point 40 with the dome 70. At an opposite end, it has a rounded surface 54.
- the actuating element 12b has three side channels 60, which extend in the axial direction A.
- Each of the side channels 60 has one circular segment-shaped cross section. In the area of the top 40 of the
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Magnetically Actuated Valves (AREA)
- Lift Valve (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013211924.0A DE102013211924A1 (de) | 2013-06-24 | 2013-06-24 | Druckregelventil mit Führung im Ventilkörper |
PCT/EP2014/058699 WO2014206601A1 (de) | 2013-06-24 | 2014-04-29 | Druckregelventil mit führung im ventilkörper |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3014111A1 true EP3014111A1 (de) | 2016-05-04 |
Family
ID=50639499
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14721324.3A Withdrawn EP3014111A1 (de) | 2013-06-24 | 2014-04-29 | Druckregelventil mit führung im ventilkörper |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3014111A1 (de) |
DE (1) | DE102013211924A1 (de) |
WO (1) | WO2014206601A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012209226A1 (de) * | 2012-05-31 | 2013-12-05 | Robert Bosch Gmbh | Druckregelventil |
DE102013220913A1 (de) | 2013-10-15 | 2015-04-16 | Continental Automotive Gmbh | Ventil |
FR3064690A1 (fr) * | 2017-03-31 | 2018-10-05 | Delphi International Operations Luxembourg S.A R.L. | Ensemble rampe et vanne haute pression |
FR3064691B1 (fr) * | 2017-03-31 | 2021-03-19 | Delphi Int Operations Luxembourg Sarl | Ensemble rampe commune et vanne haute pression |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10129822C2 (de) * | 2001-06-13 | 2003-04-24 | Mtu Friederichshafen Gmbh | Druckbegrenzungsventil für Kraftstoff-Einspritzeinrichtungen |
US20030067217A1 (en) * | 2001-10-09 | 2003-04-10 | Raymundo Saenz | Valve and method for a brake control actuator |
DE10312175A1 (de) * | 2003-03-19 | 2004-10-14 | Robert Bosch Gmbh | Druckbegrenzungsventil |
US20080022974A1 (en) * | 2006-07-28 | 2008-01-31 | Caterpillar Inc. | Multi-stage relief valve having different opening pressures |
US8291889B2 (en) * | 2009-05-07 | 2012-10-23 | Caterpillar Inc. | Pressure control in low static leak fuel system |
AT510464B1 (de) * | 2010-09-27 | 2012-07-15 | Bosch Gmbh Robert | Ventil mit druckbegrenzungsfunktion |
DE102011017765A1 (de) * | 2011-04-29 | 2012-10-31 | Robert Bosch Gmbh | Druckbegrenzungsventil |
-
2013
- 2013-06-24 DE DE102013211924.0A patent/DE102013211924A1/de not_active Withdrawn
-
2014
- 2014-04-29 WO PCT/EP2014/058699 patent/WO2014206601A1/de active Application Filing
- 2014-04-29 EP EP14721324.3A patent/EP3014111A1/de not_active Withdrawn
Non-Patent Citations (2)
Title |
---|
None * |
See also references of WO2014206601A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2014206601A1 (de) | 2014-12-31 |
DE102013211924A1 (de) | 2014-12-24 |
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