CN104204533B - Rotary-vane vaccum pump - Google Patents
Rotary-vane vaccum pump Download PDFInfo
- Publication number
- CN104204533B CN104204533B CN201380015852.1A CN201380015852A CN104204533B CN 104204533 B CN104204533 B CN 104204533B CN 201380015852 A CN201380015852 A CN 201380015852A CN 104204533 B CN104204533 B CN 104204533B
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- CN
- China
- Prior art keywords
- rotary
- vane vaccum
- compensation passage
- passing away
- compensation
- 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
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Rotary Pumps (AREA)
Abstract
A kind of rotary-vane vaccum pump is with suction room (12) in housing (10).Rotor (14) is prejudicially installed in suction room (12).Slide plate (18) is movably connected with rotor (14).Additionally, passing away (30) is connected with suction room (12) and oil pocket (32).Valve gear (38) is provided between passing away (30) and oil pocket (32), to avoid medium from being back to from oil pocket (32) in suction room (12).According to the present invention, at least one compensation passage (50,72) is provided with, the compensation passage is connected with passing away (30) and oil pocket (32) and is integrated in valve gear (38).
Description
Technical field
The present invention relates to a kind of rotary-vane vaccum pump.
Background technology
Rotary-vane vaccum pump has the suction room for arranging in the housing.Rotor is prejudicially provided with housing.Generally,
In slide plate gap, two or more slide plates are connected with rotor.Slide plate is by centrifugal force compression suction during rotor rotation
The inwall of room.In order to produce vacuum, the suction opening of rotary-vane vaccum pump is connected with chamber to be vacuumized.Bias due to rotor
The size of the change of degree and the room being formed between slide plate transports medium by one or more passing aways.In order to lubricate and with
Just guarantee good sealing of the slide plate at the inwall of suction room, be constantly present a certain amount of oil so that oil is constituted in suction room
Film.Because therefore the medium that discharges is mixed with oil, at least one passing away is generally stretched in oil pocket from suction room.
If rotary-vane vaccum pump is for example stopped due to fault suddenly, then this causes：Suction room is defeated via lubricant
Device is sent to be completely filled with oil.This causes when pump is started next time torque to improve and causes the raising of the formation of noise.This
Outward, slide plate can be damaged as torque is improved.Additionally, there are following risks：Oil enter in room to be vacuumized and
There causes damage.It is thus desirable to：The suction room of rotary-vane vaccum pump is implemented to atmospheric pressure after stopping, to avoid
The inflow of lubricant.
For this purpose, from US 3, in 301,474 the known hole for being provided with valve equipment, and the hole is connected with suction room.This is relative consumption
Take, because must be provided with valve equipment to be separately controlled, the valve equipment must is fulfilled for high sealing requirements.
Additionally, rotary-vane vaccum pump known to from EP 1 899 608, is wherein compensated passage and is connected with passing away.Mending
Repay on passage and basically there exist atmospheric pressure.Compensation passage is arranged in the flange of pump case and is covered by the valve plate of valve gear
Lid.Filling up for suction room can be avoided by the solution of applicant when rotary-vane vaccum pump breaks down or turns off.
When rotary-vane vaccum pump breaks down or turns off, drawn air in suction room by compensating passage so that when of short duration
Between after in suction room or in part be connected with passing away of suction room injection atmospheric pressure.
Content of the invention
The purpose of the present invention is to research and develop the solution of alternative to arrange the capped groove in flange, the solution
Certainly scheme if necessary can cost-effective ground and/or be modified depositing in the case of a pump.
According to the present invention, the purpose is realized by a kind of rotary-vane vaccum pump.
In the rotary-vane vaccum pump according to the present invention, suction room is connected with oil pocket via passing away, wherein in row
Go out between passage and oil pocket and be provided with valve gear.Valve gear is used for preventing medium, is usually the mixture of oil and air from oil
It is back in suction room in chamber.Additionally, be provided with least one compensation passage, the compensation passage is by passing away and following regions
Connection, is substantially full of atmospheric pressure in this region.Preferably, compensation passage is connected with the air chamber of oil pocket, wherein oil
The air chamber in chamber is following regions of oil pocket, and the region is located on oil sump and substantially deposits if necessary in this region
In the air rich in oil.
Combine, by arranging this compensation passage, the valve gear being arranged between oil pocket and passing away, in operation, real
Now medium is forced in passing away from suction room, the medium being wherein usually as the gas of air and the mixture of oil composition
Reach in oil pocket through valve gear.A part for the oil being present in medium is pressed in compensation passage or from wherein being taken out
Go out and then seal the compensation passage.Therefore ensure that：Fresh air is not aspirated in run duration via compensation passage, or have
The air of environmental stress is reached in passing away.If rotary-vane vaccum pump breaks down or also intentionally stops rotary vane type
Vavuum pump, then oil is extruded and take out from capillary by compensating relatively low pressure of the passage due to injection in suction room
Suck.This causes rapidly carries out pressure compensation in suction room so that suction room is quickly implemented on atmospheric pressure.
This causes：Suction room is filled up completely with oil not via lubricant supply device.Thus, it is to avoid that improved when starting next time turns
The shortcoming of square and avoid the damage that thus may cause of slide plate.Thus oil or lubricant is also avoided to enter into be vacuumized
In room.It is extremely little for the time interval of pressure of the compensation in suction room.
According to the present invention, compensate passage and be integrated in valve gear.Thus, for example can independently of housing, especially independently of
Groove manufacture valve gear in the housing is set.This tool has the advantage that：Can by being constituted according to the present invention, have compensation passage
Valve gear be used for the rotary vane type pump that is differently composed.In addition it is possible that existing to transform by simply changing valve gear
Rotary vane type pump.
Preferably, valve gear has the valve plate of closing passing away, the valve plate and spring element collective effect.Pass through
Spring element is applied to seal force on valve plate.The preferably same plate shape ground of spring element is constituted and with for producing elastic force
Elastomeric material.
Because compensating passage according to the present invention at least one to be integrated in valve gear, valve plate is in especially preferred enforcement
With the connection opening being connected with passing away in mode.Connection opening is led in compensation passage.Connection opening and preferred
The cross section of also compensation passage is preferably selected according to the viscosity of lubricant so that at least one compensation passage constitutes capillary
Passage, in run duration suction oil in the capillary channel.Thus, the closing of passage is compensated in run duration.
The other problem of rotary-vane vaccum pump is：In the rotary speed of rotor, can determine in limit range
The formation of noise of raising.In order to reduce the formation of noise, with little opening in constricted zone, air can pass through described housing
Opening is flowed into.Thus, oil-emulsion is formed, the formation of noise can be reduced by the oil-emulsion.Because air conveys pole
Its inaccurate and then oil emulsification degree is inaccurate, it is possible to only slightly reducing the formation of noise.
The emulsification of the controlled and restriction of oil is realized again by compensation passage is arranged.As described, compensate
Passage is filled at least partially with oil, and medium is from the row of being transported in the region of the suction room between two adjacent slide plates
Go out in passage.If now closely followed in this, the slide plate of trailing is through the opening being connected with suction room of passing away, then storage
Oil deposit in compensation passage is transported in the room.Here, a small amount of air is extracted out from compensation passage jointly, institute
State the emulsification that air causes oil.Quantity and moulding particularly by compensation passage can guarantee lubrication according to the lubricant that is applied
The good emulsification of agent.Therefore, at least one compensation passage arranged according to the present invention is in the rev limit of rotary-vane vaccum pump
Also noise is caused to reduce in scope.
Guaranteed due to the little cross section of at least one compensation passage：Only small amounts of air is reached in pump.Especially, lead to
Cross the quantity of at least one compensation passage and by cross section and moulding, can determine in one or more compensation passages temporarily
The oil mass that deposits and the air capacity that is aspirated.
In an especially preferred improved form of the present invention, in being provided between the spring element and valve plate of valve gear
Between element.At least one is constituted by intermediary element and compensate passage.Preferably, intermediary element is laterally and in lower section to compensation
Passage gauge so that constitute compensation access portal in the upper area of intermediary element.Compensation access portal is connected with oil pocket, its
In be attached in the region of oil pocket, gas or air are in the oil pocket.Therefore, lower area is relative with upper area
The region that puts, wherein lower area are preferably provided in the oil sump of oil pocket.
This time preferably, compensation passage is by the valve plate and spring element gauge.Thus, constitute what many side seals were closed
Passage, the passage have compensation access portal in upper area and are closing in lower area.
Preferably, intermediary element is configured to so which partly surrounds connection opening.It is preferred that intermediary element is configured to be U
Shape.When multiple compensation passages are provided with, it is also possible to be provided with multiple single intermediary element or common intermediary element.?
This, each intermediary element is preferably configured as being U-shaped or in the case of common intermediary element that intermediary element has corresponding
Constitute gap or the opening of compensation passage.At least one intermediary element can with valve plate and/or spring element or be arranged on spring
Middleware connection between element and intermediary element.This for example can be carried out by pasting or welding.It is also possible that middle
Element is constituted with valve plate and/or spring element single type ground.Especially, can carry out and the spring element being made up of elastoplast
Single type ground is constituted.Preferably, intermediary element is equally made up of elastomeric material, so as to guarantee good sealing.Especially,
At least one intermediary element is made up of elastomer plastic.Here, its can for separate, constitute one or more compensation passages
Intermediary element.
In the embodiment of another preferred alternative, at least one compensation passage is arranged in valve plate.Here, in valve plate
In can for example be provided with gap or groove.At least one compensation passage being consequently formed is open upwards and has corresponding compensation again
Access portal, the compensation access portal are especially led in following regions in oil pocket, there is gas or sky in this region
Gas.In order to compensation passage is constituted, hole can be also provided with valve plate, wherein For manufacturing technology reasons, the setting of gap or groove
It is preferred to put.As long as being provided with groove, the groove is just unlimited in one direction.The opening of groove can by housing wall,
Close as the flange of housing.It is also possible that the opening of groove is pointed in another direction and then by spring element or centre
Part is closed.When being provided with gap in valve plate, the gap along both direction open wide so that on side by housing wall and
Closed by spring element or middleware on opposite side.
Although the present invention is substantially by means of describing with channel attached passing away is compensated, also it is possible that suction
Room is connected with oil pocket via multiple passing aways for being preferably parallel to each other stretching, extension.Here, multiple passing aways are by separate valve
Device is closed, and be wherein it is preferred that and is provided with common valve gear.The valve gear can have the protuberance with multiple finger-like
Valve plate, wherein by each finger-like protuberance close passing away.Spring element preferred correspondingly structure in this embodiment
Become.At least one of multiple passing aways are connected with the compensation passage being integrated in valve gear according to the present invention.Preferably, many
Individual, especially whole passing away is connected with compensation passage.Here, can for multiple passing aways be provided with common compensation passage or
Separate compensation passage is provided with for each passing away.
Preferably, opening and closing for passing away is carried out by means of clack valve or valve plate.For this purpose, by elasticity, resilience
Material constitutes valve plate.When the region of the sealing passing away of valve plate is located at and causes to build additional compaction pressure in oil sump, energy
The especially good sealing of valve plate is enough realized.Due to the raising of sealing, it is able to carry out other effectively vacuumizing.
Description of the drawings
Below, the present invention is elaborated in the case of the accompanying drawing according to appended by preferred embodiment in reference.
Which illustrates：
Fig. 1 illustrates the constructed profile of the first embodiment of rotary-vane vaccum pump,
Fig. 2 illustrates the schematic diagram of the parts of the valve gear of first embodiment,
Fig. 3 illustrates the constructed profile of the second embodiment of rotary-vane vaccum pump, and
Fig. 4 illustrates the schematic diagram of the parts of the valve gear of second embodiment.
Specific embodiment
Rotary-vane vaccum pump (Fig. 1) is with housing 10.Within housing 10, rotor 14 is provided with suction room 12.Rotor
14 have three slide plate gaps 16 in the embodiment illustrated, are respectively arranged with slide plate 18 in the slide plate gap.Slide plate
18 inwalls 20 for compressing suction room by the rotation of rotor 14 due to centrifugal force.
Medium is drawn into suction room via the suction opening 22 being connected with room to be vacuumized from room to be vacuumized
In 12 first area 24.The region 24 of suction room 12 passes through two adjacent 18 gauges of slide plate.Suction room 12 in rotation side
Region 28 on 26 before region 24 is diminished by the rotation of rotor 14 so that the medium being located therein is compressed.
Medium is transported towards the direction of oil pocket 32 from suction room 12 by passing away 30 from region 28.
Oil pocket 32 is fixed on the flange 34 of the housing 10 of rotary-vane vaccum pump.Oil pocket 32 with grease chamber or oil sump 35,
Collect in the grease chamber or oil sump and especially convey together with the air extracted from the room for vacuumizing via passing away 30
Oil.
The outlet opening 36 of passing away 30 is closed by valve gear 38.In shown especially preferred embodiment,
Valve gear is the valve plate 48 (Fig. 2) of elasticity, and the valve plate is for example fixed on the flange 34 of housing 10 by means of bolt or nut 40
On.Especially preferably：Valve plate 48 is arranged in oil sump 42 in the region of outlet opening 36.For this purpose, leading in oil pocket 32
Cross midfeather 44 and separate grease chamber is formed, wherein in the grease chamber of filling, oil is flowed along the direction of arrow 47.By arranging oil sump
42, pressure is applied on the rear side of valve plate, be applied on the side towards the direction sensing of oil sump 42 of valve plate.Thus, carry
The sealing of high valve gear 38.
According to the present invention, compensate passage and be integrated in valve gear 38.
Compensation passage 50 is constituted by intermediary element 52 in the present invention first preferred embodiment in (Fig. 1 and 2).
Intermediary element 52 is the part of the U-shaped being made up of elastoplast in a preferred embodiment.In order to be formed in shown reality
Three compensation passages 50 in example are applied, valve has valve plate 48.Three parallel to each other stretching, extensions are closed in the embodiment illustrated
The valve plate 48 of passing away 30 has the protuberance 54 of finger-like for this.The protuberance 54 of downwardly directed finger-type is respectively provided with
Connection opening 56.Connection opening 56 is the connecting portion between passing away 30 and compensation passage 50.Intermediary element 52 is arranged on finger
On the protuberance 54 of shape, wherein for example can be fixed by pasting.58 envelope of middleware for the part of intermediary element
Close the fore part pointed to away from flange face 47 of corresponding compensation passage 50.The fixation of middleware 58 is again by bolt
46 carrying out.
Additionally, valve gear has spring element 60.The spring element being especially made up of elastic plastic material causes valve
The back pressure of plate 48 and then closing passing away 30.Middleware 58 and spring element 60 have the convex of the protuberance 54 corresponding to finger-type
Go out portion 62,64.
In mounted situation, therefore compensation passage 50 is limited by the intermediary element 52 of valve plate 48, U-shaped and middleware 58
Boundary.The connection of passage 50 and passing away 30 is compensated via connection opening 56.Compensation passage 50 and the air chamber of oil pocket 32
53 connection is carried out via compensation access portal 66, and the compensation access portal is arranged in the upper area of intermediary element.
By the rotation of rotor 14, the medium in operation rich in oil is transported to row along the direction of arrow 68 from region 28
Go out in passage 30.Due to pressure, valve plate 48 is by back pressure so that medium is reached in oil sump 42 along the direction of arrow 70 or oil pocket 32
In.A part of here of oil is pressed in compensation passage 50 and then causes sealing.
Once region 28 is essentially exhausted, it is present in the oil deposit in passage 50 together with by opening 66 from oil pocket 32
The a small amount of air aspirated in air chamber 53 is drawn in passing away 30 together.By the common emulsification for dragging air, carrying out oil
And then noise reduces.
When pump is for example stopped due to fault, air is aspirated from air chamber 53 via opening 66 and compensation passage 50
To in suction room 12 so that carry out pressure compensation and suction room 12 is essentially disposed at atmospheric pressure.Therefore ensure that：Do not have or must
When wanting, only small amounts of lubricant is reached in suction room.Thus avoid being filled up completely with suction room 12 by lubricant.
As the oil flowing in valve gear 38, especially in the region of valve plate 48 or oil circulation guarantee：Here does not form accumulation
Thing.Especially, it is to avoid the pollution of valve gear 38.Thus, it is to avoid the blocking of valve gear 38.Furthermore it is ensured that good sealing and
Valve sealing is avoided for the impact of pump power.Second preferred embodiment (Fig. 3 and 4) except valve gear 38 design it
There is outward identical component so that the component can be identified with identical reference.Operation principle also corresponds to blade
The operation principle described according to Fig. 1 and 2 before formula vavuum pump.
In the embodiment for illustrating in figures 3 and 4, at least one compensation passage is integrated in valve passage 38 so that in order to
Compensation passage 72 is constituted in valve plate 48 and be provided with gap.This vertically extends on the major part of valve plate and especially extends to
In in the protuberance 54 of finger-type.The lower area 74 for being connected to gap between passing away 30 and compensation passage 72
In carry out.
In order to constitute compensation passage 72, gap is on the one hand laterally by 48 gauge of valve plate and on the other hand by flange
Face 47 and 60 gauge of valve spring by corresponding composition.Additionally, in can corresponding between valve spring 60 and valve plate 48
Between part 58 (Fig. 2) be provided with middleware.The operation principle of the rotary-vane vaccum pump illustrated in Fig. 3 and 4 is corresponded to and is illustrated in Fig. 1 and 2
Rotary-vane vaccum pump operation principle.
Claims (19)
1. a kind of rotary-vane vaccum pump, has：
Housing with suction room,
The rotor being eccentrically arranged in the suction room,
Can with the slide plate that is connected of rotor movement ground,
The passing away being connected with the suction room and oil pocket,
The valve gear being arranged between the passing away and the oil pocket, is back to institute so as to suppression medium from the oil pocket
State in suction room, and
The compensation passage that at least one is connected with the passing away, basically there exist atmospheric pressure on the compensation passage,
Characterized in that,
Described at least one, compensation passage is integrated in the valve gear.
2. rotary-vane vaccum pump according to claim 1, it is characterised in that the valve gear has at least one institute of closing
The valve plate for stating passing away and the spring element for acting on the valve plate.
3. rotary-vane vaccum pump according to claim 2, it is characterised in that the valve plate has and leads to the compensation passage
In and described compensation channel attached connection opening.
4. rotary-vane vaccum pump according to claim 2, it is characterised in that the compensation passage is by being arranged on the valve
Intermediary element between plate and the spring element is constituted.
5. rotary-vane vaccum pump according to claim 4, it is characterised in that the intermediary element is laterally and in lower section
To the compensation passage gauge and compensate access portal and be formed in upper area.
6. rotary-vane vaccum pump according to claim 4, it is characterised in that the compensation passage also by the valve plate and
The spring element or middleware gauge.
7. rotary-vane vaccum pump according to claim 4, it is characterised in that the intermediary element partly surrounds the company
Connect opening.
8. rotary-vane vaccum pump according to claim 6, it is characterised in that the intermediary element and the valve plate and/or
The spring element and/or the middleware connection, or with the valve plate and/or the spring element and/or the centre
Part single type ground is constituted.
9. rotary-vane vaccum pump according to claim 4, it is characterised in that the intermediary element is made up of elastomeric material.
10. rotary-vane vaccum pump according to claim 2, it is characterised in that the compensation passage is arranged on the valve plate
In.
11. rotary-vane vaccum pumps according to claim 10, it is characterised in that the compensation passage is set as the valve plate
In gap or groove, the gap or groove are laterally through the spring element or the housing wall of middleware and/or the housing
Closing.
12. rotary-vane vaccum pumps according to claim 11, it is characterised in that the gap or the groove are to be open upwards
's.
13. rotary-vane vaccum pumps according to claim 1, it is characterised in that the compensation passage is in rotary-vane vaccum pump
Closed with oil during operation.
14. rotary-vane vaccum pumps according to claim 1, it is characterised in that the compensation passage is configured to capillary and leads to
Road.
15. rotary-vane vaccum pumps according to claim 1, it is characterised in that between the suction room and the oil pocket
It is provided with the passing away of multiple stretching, extensions parallel to each other.
16. rotary-vane vaccum pumps according to claim 1, it is characterised in that described at least one compensation passage with described
The air chamber connection of oil pocket.
17. rotary-vane vaccum pumps according to claim 1, it is characterised in that passing away described in closing at least one
The valve gear is arranged in the region of passing away described at least one in oil sump.
18. rotary-vane vaccum pumps according to claim 15, it is characterised in that the passing away is by common valve gear
Closing, wherein at least one passing away are connected with compensation passage.
19. rotary-vane vaccum pumps according to claim 9, it is characterised in that the elastomeric material is elastomer plastic.
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 CN104204533A (en) | 2014-12-10 |
| CN104204533B true 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 |
|---|---|---|---|---|
| CN108119297A (en) * | 2017-11-14 | 2018-06-05 | 武汉船用机械有限责任公司 | A kind of hydraulic motor casing and hydraulic motor |
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 |
| WO2024078678A1 (en) | 2022-10-10 | 2024-04-18 | Busch Produktions Gmbh | Improved sliding vane rotary pump |
| 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 |
Citations (5)
| 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 |
-
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 (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108119297A (en) * | 2017-11-14 | 2018-06-05 | 武汉船用机械有限责任公司 | A kind of hydraulic motor casing and hydraulic motor |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2836722A2 (en) | 2015-02-18 |
| DE202012002882U1 (en) | 2013-06-25 |
| CN104204533A (en) | 2014-12-10 |
| WO2013139570A3 (en) | 2014-07-03 |
| WO2013139570A2 (en) | 2013-09-26 |
| EP2836722B1 (en) | 2021-11-03 |
| ES2900750T3 (en) | 2022-03-18 |
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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 |