CN104204533A - Vacuum-type rotary slide pump - Google Patents
Vacuum-type rotary slide pump Download PDFInfo
- Publication number
- CN104204533A CN104204533A CN201380015852.1A CN201380015852A CN104204533A CN 104204533 A CN104204533 A CN 104204533A CN 201380015852 A CN201380015852 A CN 201380015852A CN 104204533 A CN104204533 A CN 104204533A
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- CN
- China
- Prior art keywords
- rotary
- compensation channel
- vane vaccum
- vaccum pump
- valve plate
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
- F04C18/344—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
- F04C18/3441—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C25/00—Adaptations of pumps for special use of pumps for elastic fluids
- F04C25/02—Adaptations of pumps for special use of pumps for elastic fluids for producing high vacuum
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/28—Safety arrangements; Monitoring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
- F04C29/026—Lubricant separation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
- F04C29/124—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps
- F04C29/126—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps of the non-return type
- F04C29/128—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps of the non-return type of the elastic type, e.g. reed valves
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Rotary Pumps (AREA)
Abstract
A vacuum-type rotary slide pump has a pump chamber (12) in a housing (10). A rotor (14) is eccentrically mounted in the pump chamber (12). Slides (18) are connected in a displaceable manner to the rotor (14). Furthermore, a discharge duct (30) is connected to the pump chamber (12) and to an oil chamber (32). Between the discharge duct (30) and the oil chamber (32) there is arranged a valve device (38) for preventing a return flow of medium from the oil chamber (32) into the pump chamber (12). According to invention, at least one compensation duct (50, 72) is provided which is connected to the discharge duct (30) and to the oil chamber (32) and which is integrated into the valve device (38).
Description
Technical field
The present invention relates to a kind of rotary-vane vaccum pump.
Background technique
Rotary-vane vaccum pump has the suction chamber being arranged in housing.Within housing, be provided with prejudicially rotor.Conventionally, in slide plate gap, two or more slide plates are connected with rotor.Slide plate compresses the inwall of suction chamber during rotor rotates by centrifugal force.In order to produce vacuum, the suction opening of rotary-vane vaccum pump is connected with the chamber that will vacuumize.Because the degree of eccentricity of rotor and the size that is formed in the change of the chamber between slide plate are transported medium by one or more discharge routes.In order to lubricate and to guarantee that slide plate is in the good sealing at the inwall place of suction chamber, always to exist a certain amount of oil to form oil film in suction chamber.Because therefore the medium of discharging mixes with oil, so at least one discharge route is stretched over oil pocket from suction chamber conventionally.
If rotary-vane vaccum pump for example stops suddenly due to fault, this causes so: suction chamber is fully filled with oil via lubricant conveying appliance.The raising that this causes torque to improve and cause the formation of noise when start pump next time.In addition, can damage slide plate because torque improves.In addition, there is following risk: oil enters into the chamber that will vacuumize and causes there damage.Therefore need: the suction chamber of rotary-vane vaccum pump is implemented to atmospheric pressure after stopping, to avoid the inflow of oiling agent.
For this reason, from US 3,301, in 474 the known hole that is provided with valve device, and described hole is connected with suction chamber.This expends relatively, because must be provided with the valve device that will separately control, described valve device must meet high sealing requirements.
In addition, known rotary-vane vaccum pump from EP 1 899 608, wherein compensation channel is connected with discharge route.On compensation channel, substantially there is atmospheric pressure.Compensation channel is arranged in the flange of pump case and is covered by the valve plate of control valve unit.This solution by claimant can be avoided filling up of suction chamber when rotary-vane vaccum pump breaks down or turn-off.When rotary-vane vaccum pump breaks down or turn-off, by compensation channel, air is drawn in suction chamber, make in suction chamber or in the part being connected with discharge route of suction chamber, to be full of atmospheric pressure after blink.
Summary of the invention
The object of the invention is, research and develop the solution of alternative for the capped groove in flange is set, described solution can be transformed by cost if desired aptly and/or in the situation that there is pump.
According to the present invention, the feature by claim 1 realizes described object.
In rotary-vane vaccum pump according to the present invention, via discharge route, suction chamber is connected with oil pocket, wherein between discharge route and oil pocket, be provided with control valve unit.Control valve unit for preventing medium, the mixture that is generally oil and air is back to suction chamber from oil pocket.In addition, be provided with at least one compensation channel, described compensation channel, by discharge route and following joint area, is substantially full of atmospheric pressure in described region.Preferably, compensation channel is connected with the air chamber of oil pocket, the following region that wherein air chamber of oil pocket is oil pocket, and described region is arranged on oil sump and in described region and substantially exists and be rich in oily air if desired.
By this compensation channel being set in conjunction with being arranged on the control valve unit between oil pocket and discharge route, be in operation, realization is forced into medium discharge route from suction chamber, is wherein generally if the medium of the mixture of the gas of air and oil composition is through in control valve unit arrival oil pocket.The oily part being present in medium is pressed in compensation channel or from being wherein drawn out of and then sealing described compensation channel.Guarantee thus: at run duration, via compensation channel, do not aspirate fresh air, or the air with environmental stress reaches in discharge route.If rotary-vane vaccum pump breaks down or the rotary-vane vaccum pump that also intentionally stops, so by compensation channel because the lower pressure being full of in suction chamber extrudes oil and aspirate air from capillary tube.This causes and in suction chamber, carries out rapidly pressure compensation, and suction chamber is implemented on atmospheric pressure rapidly.This causes: suction chamber is not filled with oil completely via lubricant supply device.Thus, avoid when start next time the shortcoming of the torque that improves and avoid the damage that may cause thus of slide plate.Also avoid thus oil or oiling agent to enter into the chamber that will vacuumize.For time lag of compensating at the pressure of suction chamber be extremely little.
According to the present invention, compensation channel is integrated in control valve unit.Thus, for example can be independent of housing, especially be independent of the groove that is arranged in housing and manufacture control valve unit.This has following advantage: can be by the control valve unit forming according to the present invention, there is compensation channel the rotary sheet type pump for differently forming.In addition feasible, by changing simply control valve unit, transform existing rotary sheet type pump.
Preferably, control valve unit has valve plate, described valve plate and the spring element acting in conjunction of sealing discharge route.By spring element, seal force is applied on valve plate.Spring element preferably with model shape form and there is the elastic material for generation of elastic force.
Because at least one compensation channel is integrated in control valve unit according to the present invention, so valve plate has the connection opening being connected with discharge route in especially preferred mode of execution.Connection opening is led in compensation channel.Connection opening and preferably also have the cross section of compensation channel preferably according to the viscosity of oiling agent, to select, make at least one compensation channel form capillary channel, in described capillary channel at run duration suction oil.Thus, at run duration, compensate the sealing of passage.
The other problem of rotary-vane vaccum pump is: in the rotational speed of rotor, can determine the formation of noise of raising in lit range.In order to reduce the formation of noise, housing has little opening in constricted zone, and air can flow into through described opening.Thus, form oil-emulsified liquid, by described oil-emulsified liquid, can reduce the formation of noise.Because it is coarse that air is carried the degree of inaccuracy extremely and then oily emulsification, so can only reduce slightly the formation of noise.
The emulsification controlled and that limit of oil realizes by compensation channel is set equally.As described, compensation channel is filled with oil at least in part, and medium is transported in discharge route from the region of the suction chamber between two adjacent slide plates.If followed closely now in this, the slide plate of trailing is through the opening being connected with suction chamber of discharge route, and the oil deposit being stored in so in compensation channel is transported in described chamber.At this, a small amount of air is jointly extracted out from compensation channel, and described air causes oily emulsification.Especially by quantity and the moulding of compensation channel, can guarantee according to applied oiling agent the good emulsification of oiling agent.Therefore, at least one compensation channel arranged according to the present invention also causes reducing noise in the rev limit scope of rotary-vane vaccum pump.
Because the little cross section of at least one compensation channel is guaranteed: only a small amount of air reaches in pump.Especially, by the quantity of at least one compensation channel with by cross section and moulding, can determine oil mass temporary in one or more compensation channel and the air quantity of aspirating.
In an especially preferred improved form of the present invention, between the spring element of control valve unit and valve plate, be provided with intermediary element.By intermediary element, form at least one compensation channel.Preferably, intermediary element side direction and below to compensation channel gauge, make to form compensation channel opening in the upper area of intermediary element.Compensation channel opening is connected with oil pocket, wherein in the region of oil pocket, connects, and gas or air are in described oil pocket.Therefore, lower area is and the opposed region of upper area that wherein lower area is preferably arranged in the oil sump of oil pocket.
This time preferably, compensation channel is by described valve plate and spring element gauge.Thus, form the passage that many side seals close, described passage has compensation channel opening and is sealing in lower area in upper area.
Preferably, intermediary element is configured to, and makes it partly surround connection opening.It is U-shaped that preferred intermediary element is configured to.When being provided with a plurality of compensation channel, also can be provided with a plurality of independent intermediary element or common intermediary element.At this, each intermediary element be preferably configured to be U-shaped or in common intermediary element situation, intermediary element has gap or the opening of corresponding formation compensation channel.At least one intermediary element can with valve plate and/or spring element or be arranged on spring element and intermediary element between middleware be connected.This for example can be by pasting or welding and carry out.Same feasible, intermediary element and valve plate and/or spring element single type ground form.Especially, can carry out with the spring element single type of being made by elastomeric plastics form.Preferably, intermediary element is made by elastic material equally, to can guarantee good sealing.Especially, at least one intermediary element is made by elastomer plastic.At this, it can be the intermediary element of separating, form one or more compensation channel.
In the mode of execution of another preferred alternative, at least one compensation channel is arranged in valve plate.At this, in valve plate, for example can be provided with gap or groove.At least one compensation channel forming is thus open upwards again and has corresponding compensation channel opening, and described compensation channel opening especially leads in following region in oil pocket, has gas or air in described region.In order to form compensation channel, in valve plate, also can be provided with hole, wherein, for the reason of manufacturing technology, the setting of gap or groove is preferred.As long as be provided with groove, described groove just opens wide along a direction.The described opening of groove can seal by shell body wall, as the flange of housing.Same feasible, the opening of groove points to and then seals by spring element or middleware along other direction.While being provided with gap in valve plate, described gap is opened wide and then by shell body wall and on opposite side, by spring element or middleware, seals in a side along both direction.
Although the present invention describes by means of the discharge route being connected with compensation channel substantially, also feasible, suction chamber is connected with oil pocket via the discharge route of a plurality of preferred stretching, extensions parallel to each other.At this, a plurality of discharge routes, by the control valve unit sealing separating, are wherein preferably provided with common control valve unit.Described control valve unit can have the valve plate with the bump of a plurality of finger-like, and wherein the bump by each finger-like seals discharge route.Spring element preferably correspondingly forms in this embodiment.At least one in a plurality of discharge routes is connected with the compensation channel being integrated into according to the present invention in control valve unit.Preferably, a plurality of, especially whole discharge routes are connected with compensation channel.At this, can be provided with common compensation channel or be provided with compensation channel separately for each discharge route for a plurality of discharge routes.
Preferably, by means of clack valve or valve plate, carry out opening and sealing of discharge route.For this reason, by material flexible, resilience, form valve plate.When the region of the sealing discharge route of valve plate is arranged in oil sump and makes to build additional compaction pressure, can realize the especially good sealing of valve plate.Due to the raising of sealing, can carry out other effectively vacuumizing.
Accompanying drawing explanation
Below, according to preferred embodiment in the situation that elaborate the present invention with reference to appended accompanying drawing.
It illustrates:
Fig. 1 illustrates the constructed profile map of the first mode of execution of rotary-vane vaccum pump,
Fig. 2 illustrates the schematic diagram of component of the control valve unit of the first mode of execution,
Fig. 3 illustrates the constructed profile map of the second mode of execution of rotary-vane vaccum pump, and
Fig. 4 illustrates the schematic diagram of component of the control valve unit of the second mode of execution.
Embodiment
Rotary-vane vaccum pump (Fig. 1) has housing 10.Within housing 10, in suction chamber 12, be provided with rotor 14.Rotor 14 has three slide plate gaps 16 in shown embodiment, in described slide plate gap, is respectively arranged with slide plate 18.The rotation of slide plate 18 by rotor 14 is because centrifugal force compresses the inwall 20 of suction chamber.
The suction opening 22 being connected via the chamber with vacuumizing is drawn into medium in the first area 24 of suction chamber 12 from the chamber that will vacuumize.The region 24 of suction chamber 12 is by two adjacent slide plate 18 gauges.Region 28 before region 24 rotation by rotor 14 that is positioned in sense of rotation 26 of suction chamber 12 diminishes, and the medium that makes to be positioned at is wherein compressed.Medium transports towards the direction of oil pocket 32 from suction chamber 12 by discharge route 30 from region 28.
Oil pocket 32 is fixed on the flange 34 of housing 10 of rotary-vane vaccum pump.Oil pocket 32 has grease chamber or oil sump 35, at described grease chamber or oil sump, collects the oil that the air that extracts especially together with the chamber from vacuumizing via discharge route 30 is carried.
The discharge aperture 36 of discharge route 30 is by control valve unit 38 sealings.In shown especially preferred embodiment, control valve unit is flexible valve plate 48 (Fig. 2), and described valve plate is for example fixed on the flange 34 of housing 10 by means of bolt or nut 40.Especially preferred: in the region of discharge aperture 36, valve plate 48 to be arranged in oil sump 42.For this reason, in oil pocket 32, by midfeather 44, form grease chamber separately, wherein, in the grease chamber of filling, oil flows along the direction of arrow 47.By oil sump 42 is set, pressure is applied on the rear side of valve plate, is applied in the side that the direction towards oil sump 42 of valve plate points to.Thus, improve the sealing of control valve unit 38.
According to the present invention, compensation channel is integrated in control valve unit 38.
Of the present invention first, preferred embodiment in (Fig. 1 and 2), by intermediary element 52, form compensation channel 50.Intermediary element 52 is the parts of the U-shaped that consists of elastomeric plastics in a preferred embodiment.In order to be formed in three compensation channel 50 in shown embodiment, valve has valve plate 48.The valve plate 48 that seals the discharge route 30 of three stretching, extensions parallel to each other in shown embodiment has the bump 54 of finger-like for this reason.The described bump 54 of the finger-type of pointing to downwards has respectively connection opening 56.Connection opening 56 is the joint between discharge route 30 and compensation channel 50.Intermediary element 52 is arranged on the bump 54 of finger-type, wherein for example can be fixed by stickup.The fore parts that point to away from flanged surface 47 for the corresponding compensation channel 50 of middleware 58 sealing of the constituent element of intermediary element.The fixing of middleware 58 undertaken by bolt 46 equally.
In addition, control valve unit has spring element 60.Especially the described spring element of being made by elastic plastic material causes back pressure and then the sealing discharge route 30 of valve plate 48.Middleware 58 and spring element 60 have the bump 62,64 corresponding to the bump 54 of finger-type.
Under the state of installing, therefore compensation channel 50 carrys out gauge by intermediary element 52 and the middleware 48 of valve plate 48, U-shaped.Via connection opening 56, compensate being connected of passage 50 and discharge route 30.Compensation channel 50 with carry out being connected via compensation channel opening 66 of air chamber 53 of oil pocket 32, described compensation channel opening is arranged in the upper area of intermediary element.
By the rotation of rotor 14, be in operation and be rich in oily medium direction along arrow 68 from region 28 and be transported in discharge route 30.Due to pressure, valve plate 48, by back pressure, makes medium reach in oil sump 42 or in oil pocket 32 along the direction of arrow 70.A part for oil is pressed in compensation channel 50 and then causes sealing at this.
Once region 28 is drained substantially, the oil deposit being present in passage 50 is drawn in discharge route 30 together with a small amount of air aspirating from the air chamber 53 of oil pocket 32 by opening 66.By jointly dragging air, carry out oily emulsification and then reducing noise.
When pump for example stops due to fault, via opening 66 and compensation channel 50, from air chamber 53, air is drawn in suction chamber 12, make to carry out pressure compensation and suction chamber 12 is placed in atmospheric pressure substantially.Guarantee thus: do not have or if desired only a small amount of oiling agent arrive in suction chamber.Avoid thus filling suction chamber 12 completely by oiling agent.
Due at control valve unit 38, especially oil flow or the oil circulation in the region of valve plate 48 guaranteed: do not form deposit at this.Especially, avoid the pollution of control valve unit 38.Thus, avoid blocking of control valve unit 38.In addition, guarantee good sealing and avoid valve seal for the impact of pump power.Second preferred embodiment (Fig. 3 and 4) except the design proposal of control valve unit 38, there is identical member, described member can be identified by enough identical reference characters.Working principle is also corresponding to the working principle of describing according to Fig. 1 and 2 before rotary-vane vaccum pump.
In the embodiment shown in Fig. 3 and 4, at least one compensation channel is integrated in valve passage 38, makes to be provided with gap in order to form compensation channel 72 in valve plate 48.This vertically extends in the bump 54 that especially extends to finger-type on the major part of valve plate.In the lower area that is connected to gap 74 between discharge route 30 and compensation channel 72, carry out.
In order to form compensation channel 72, gap is on the one hand laterally by valve plate 48 gauges and on the other hand by flanged surface 47 and by valve spring 60 gauges of corresponding formation.Additionally, between valve spring 60 and valve plate 48, can be provided with middleware corresponding to middleware 58 (Fig. 2).The working principle of the rotary-vane vaccum pump shown in Fig. 3 and 4 is corresponding to the working principle of the rotary-vane vaccum pump shown in Fig. 1 and 2.
Claims (17)
1. a rotary-vane vaccum pump, has:
The housing (10) with suction chamber (12),
Be arranged on prejudicially the rotor (14) in described suction chamber (12),
The slide plate (18) that can be connected movably with described rotor (14),
The discharge route (30) being connected with oil pocket (32) with described suction chamber (12),
Be arranged on the control valve unit (38) between described discharge route (30) and described oil pocket (32), to suppress medium, from described oil pocket (32), be back in described suction chamber (12), and
, on described compensation channel, substantially there is atmospheric pressure in the compensation channel (50,72) that at least one is connected with described discharge route (30),
It is characterized in that,
Compensation channel described at least one (50,72) is integrated in described control valve unit (38).
2. rotary-vane vaccum pump according to claim 1, it is characterized in that, described control valve unit (38) has the valve plate (48) of sealing discharge route (30) described at least one and acts on the spring element (60) of described valve plate (48).
3. rotary-vane vaccum pump according to claim 2, is characterized in that, described valve plate (48) has and leads to connection opening (56,74) in described compensation channel (30), that be connected with described compensation channel (30).
4. according to the rotary-vane vaccum pump described in claim 2 or 3, it is characterized in that, described compensation channel (50) consists of the intermediary element (52) being arranged between described valve plate (48) and described spring element (60).
5. rotary-vane vaccum pump according to claim 4, is characterized in that, described intermediary element (52) laterally and below described compensation channel (50) gauge and compensation channel opening (66) are formed in upper area.
6. rotary-vane vaccum pump according to claim 1, is characterized in that, described compensation channel (50) is also by described valve plate (48) and described spring element (60) or middleware (58) gauge.
7. according to the rotary-vane vaccum pump described in any one in claim 4 to 6, it is characterized in that, described intermediary element (52) is partly surrounded described connection opening (56) and is preferably configured to is U-shaped.
8. according to the rotary-vane vaccum pump described in any one in claim 4 to 7, it is characterized in that, described intermediary element (52) and described valve plate (48) and/or described spring element (60) and/or described middleware (58) are connected, or form with described valve plate (48) and/or described spring element (60) and/or described middleware (58) single type ground.
9. according to the rotary-vane vaccum pump described in any one in claim 4 to 8, it is characterized in that, described intermediary element (52) is by elastic material, especially elastomer plastic is made.
10. according to the rotary-vane vaccum pump described in any one in claims 1 to 3, it is characterized in that, described compensation channel (72) is arranged in described valve plate (48).
11. rotary-vane vaccum pumps according to claim 10, it is characterized in that, described compensation channel (72) is set as gap or the groove in described valve plate (48), and the shell body wall (47) by described spring element (60) or middleware (58) and/or described housing (10) seals in side direction for described gap or groove.
12. rotary-vane vaccum pumps according to claim 11, is characterized in that, described gap or described groove are open upwards.
13. according to the rotary-vane vaccum pump described in any one in claim 1 to 12, it is characterized in that, described compensation channel (50,72) seals with oil when rotary-vane vaccum pump moves.
14. according to the rotary-vane vaccum pump described in any one in claim 1 to 13, it is characterized in that, described compensation channel (50,72) is configured to capillary channel.
15. according to the rotary-vane vaccum pump described in any one in claim 1 to 14, it is characterized in that, between described suction chamber (12) and described oil pocket (32), be provided with the discharge route (30) of a plurality of preferred stretching, extensions parallel to each other, described discharge route is preferably sealed by common control valve unit (38), wherein at least one, preferably a plurality of and especially preferably all discharge routes (30) connect with compensation channel (50,72).
16. according to the rotary-vane vaccum pump described in any one in claim 1 to 15, it is characterized in that, compensation channel described at least one (50,72) is connected with the air chamber (53) of described oil pocket (32).
17. according to the rotary-vane vaccum pump described in any one in claim 1 to 16, it is characterized in that, seal the described control valve unit (38) of discharge route (30) described at least one and be arranged in the region of discharge route described at least one (30) in oil sump (42).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE202012002882U DE202012002882U1 (en) | 2012-03-22 | 2012-03-22 | Rotary vacuum pump |
| DE202012002882.0 | 2012-03-22 | ||
| PCT/EP2013/054004 WO2013139570A2 (en) | 2012-03-22 | 2013-02-28 | Vacuum-type rotary slide pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104204533A true CN104204533A (en) | 2014-12-10 |
| CN104204533B CN104204533B (en) | 2017-03-08 |
Family
ID=47845961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380015852.1A Active CN104204533B (en) | 2012-03-22 | 2013-02-28 | Rotary-vane vaccum pump |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2836722B1 (en) |
| CN (1) | CN104204533B (en) |
| DE (1) | DE202012002882U1 (en) |
| ES (1) | ES2900750T3 (en) |
| WO (1) | WO2013139570A2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117212157A (en) * | 2023-11-08 | 2023-12-12 | 江苏芬奇工业设备制造有限公司 | Rotary vane vacuum pump capable of automatically lubricating rotary vane |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202014009218U1 (en) | 2014-07-11 | 2015-10-14 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | Rotary vane vacuum pump |
| FR3048462B1 (en) * | 2016-03-03 | 2020-01-10 | Mil's | PUMP, ESPECIALLY WITH LUBRICATED PALLETS |
| CN108119297B (en) * | 2017-11-14 | 2019-09-10 | 武汉船用机械有限责任公司 | A kind of hydraulic motor casing and hydraulic motor |
| WO2024078678A1 (en) | 2022-10-10 | 2024-04-18 | Busch Produktions Gmbh | Improved sliding vane rotary pump |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1336873A (en) * | 1970-01-31 | 1973-11-14 | Gen Eng Radcliffe | Vacuum pumps |
| WO2007003215A1 (en) * | 2005-07-05 | 2007-01-11 | Vhit S.P.A. | Vacuum vane pump with discharge valve |
| WO2009018906A1 (en) * | 2007-08-04 | 2009-02-12 | Ixetic Hückeswagen Gmbh | Vacuum pump |
| CN201891609U (en) * | 2010-10-11 | 2011-07-06 | 王晟 | Improved structure of vacuum pump exhaust device |
| CN202157963U (en) * | 2011-07-22 | 2012-03-07 | 上海真空泵厂有限公司 | Novel rotary-vane type vacuum pump preventing oil return |
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| US3326456A (en) * | 1965-09-13 | 1967-06-20 | Prec Scient Company | Check valve for a vacuum pump |
| US3301474A (en) | 1965-09-24 | 1967-01-31 | Bendix Balzers Vacuum Inc | Oil sealed mechanical rotary vacuum pump |
| DE102005031718A1 (en) | 2005-07-07 | 2007-01-18 | Leybold Vacuum Gmbh | Rotary vacuum pump |
| DE102007005216B4 (en) * | 2007-01-29 | 2015-07-30 | Pierburg Gmbh | vacuum pump |
| DE102010044898A1 (en) * | 2010-09-09 | 2012-03-15 | Schwäbische Hüttenwerke Automotive GmbH | Vacuum pump with ventilation device |
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2012
- 2012-03-22 DE DE202012002882U patent/DE202012002882U1/en not_active Expired - Lifetime
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2013
- 2013-02-28 CN CN201380015852.1A patent/CN104204533B/en active Active
- 2013-02-28 WO PCT/EP2013/054004 patent/WO2013139570A2/en active Application Filing
- 2013-02-28 EP EP13708741.7A patent/EP2836722B1/en active Active
- 2013-02-28 ES ES13708741T patent/ES2900750T3/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1336873A (en) * | 1970-01-31 | 1973-11-14 | Gen Eng Radcliffe | Vacuum pumps |
| WO2007003215A1 (en) * | 2005-07-05 | 2007-01-11 | Vhit S.P.A. | Vacuum vane pump with discharge valve |
| WO2009018906A1 (en) * | 2007-08-04 | 2009-02-12 | Ixetic Hückeswagen Gmbh | Vacuum pump |
| CN201891609U (en) * | 2010-10-11 | 2011-07-06 | 王晟 | Improved structure of vacuum pump exhaust device |
| CN202157963U (en) * | 2011-07-22 | 2012-03-07 | 上海真空泵厂有限公司 | Novel rotary-vane type vacuum pump preventing oil return |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117212157A (en) * | 2023-11-08 | 2023-12-12 | 江苏芬奇工业设备制造有限公司 | Rotary vane vacuum pump capable of automatically lubricating rotary vane |
| CN117212157B (en) * | 2023-11-08 | 2024-02-27 | 江苏芬奇工业设备制造有限公司 | Rotary vane vacuum pump capable of automatically lubricating rotary vane |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104204533B (en) | 2017-03-08 |
| EP2836722A2 (en) | 2015-02-18 |
| DE202012002882U1 (en) | 2013-06-25 |
| WO2013139570A3 (en) | 2014-07-03 |
| WO2013139570A2 (en) | 2013-09-26 |
| EP2836722B1 (en) | 2021-11-03 |
| ES2900750T3 (en) | 2022-03-18 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| CB02 | Change of applicant information |
Address after: Cologne, Germany Applicant after: LEYBOLD Co. Ltd. Address before: Cologne, Germany Applicant before: Oerlikon Leybold Vacuum GmbH |
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| COR | Change of bibliographic data | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |