EP1766239A1 - Single-winged vacuum pump - Google Patents
Single-winged vacuum pumpInfo
- Publication number
- EP1766239A1 EP1766239A1 EP05739759A EP05739759A EP1766239A1 EP 1766239 A1 EP1766239 A1 EP 1766239A1 EP 05739759 A EP05739759 A EP 05739759A EP 05739759 A EP05739759 A EP 05739759A EP 1766239 A1 EP1766239 A1 EP 1766239A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- vacuum pump
- pump according
- insert
- housing
- outlet opening
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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
-
- 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
-
- 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
- F04C18/3442—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 the surfaces of the inner and outer member, forming the inlet and outlet opening
-
- 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
- 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
- F04C29/028—Means for improving or restricting lubricant flow
-
- 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
- F04C2220/00—Application
- F04C2220/10—Vacuum
Definitions
- the invention relates to a single-wing vacuum pump with a cup-shaped housing, a rotor rotatably mounted eccentrically in the housing, a rotatably mounted in the rotor orthogonal to the axis of rotation, which rests with its wing tips on a working space defining peripheral surface and thereby dividing the working space into a suction chamber and a pressure chamber , And the suction chamber with an air inlet opening and the pressure chamber are provided with an air outlet opening.
- Vacuum pumps of such a construction are known. They usually have a housing in which a rotor is rotatably mounted, wherein the rotor is located in a working space. Such vacuum pumps are u.a. also used in vehicles, where, for example, the motor of the motor vehicle rotates the rotor. These vacuum pumps are lubricated with oil, which also serves to seal the sealing gap between the wing and working space. It is desirable that as little as possible oil is led out of the air outlet opening of the pressure chamber from the working space.
- the invention has for its object to provide a single-wing vacuum pump, in which the air leaving the pressure chamber is loaded with less oil.
- the air outlet opening is in the peripheral surface surrounding the pressure chamber and not, as in the prior art, in the bottom of the pressure chamber, which is penetrated by the rotor.
- the arrangement of the outlet opening in the peripheral wall of the essential advantage is provided that the size of the opening cross-section can be made larger than when the outlet opening is provided in the bottom.
- the pressure chamber is emptied faster and expelling the sucked air from the pressure chamber less energy is needed.
- a gradual opening can be effected. For example, the opening edge may be skewed so that the outlet opening is initially available with a small cross-section that gradually increases. As a result, pressure surges are avoided.
- an exhaust valve connects directly to the air outlet opening.
- the outlet valve is arranged in the peripheral wall of the housing. This arrangement is very space-saving and it is avoided that the housing is externally provided with attachments.
- the exhaust valve is a leaf spring valve.
- Such valves are responsive, require a very small amount of space and are above all inexpensive. If the back of the exhaust valve is flat, then it settles the leaf spring valve optimally to the edge of the outlet, without the need for special Anpress Anlagenn. The exhaust valve is thus closed in the suction and opens to expel the air.
- the air outlet opening is provided with an insert, wherein the insert forms part of the peripheral surface of the pressure chamber or is integrated in the housing wall.
- the insert forms part of the peripheral surface of the pressure chamber or is integrated in the housing wall.
- a variant according to the invention provides that an oil outlet opening is provided in the peripheral surface surrounding the suction space. Rotates the rotor, for whatever reason, backwards, then in the suction chamber accumulating lubricating oil can be removed from this ⁇ lauslassö réelle because the suction prevents a corresponding valve that already sucked air and lubricating oil are ejected again. This air and the lubricating oil can now escape through the oil outlet.
- the outlet valve directly adjoins the oil outlet opening. This valve prevents air and / or oil from being drawn in through the oil outlet when the pump is in normal operation.
- the outlet valve is arranged in the peripheral wall of the housing.
- This outlet valve can also be designed as a leaf spring valve, and advantageously both the outlet valve of the oil outlet opening and the outlet valve of the air outlet opening are formed by a single component.
- This single component in the form of a leaf spring valve is, for example, a stamped sheet metal part which has two spring tongues.
- the oil outlet opening is also provided in an insert, wherein the insert forms part of the peripheral surface of the working space or of the suction space.
- the insert extends from the pressure chamber into the suction chamber, wherein the insert advantageously expands over the entire height of the inner circumferential surface.
- the insert consists according to the invention of an elastic material, in particular of plastic.
- the insert can act as a support or holding element for the outlet valve, wherein the outlet valve is provided between the insert and the housing wall.
- the outlet valve may also be provided in use, wherein the outlet valve is, for example, encapsulated by the material of the insert.
- Figure 1 is an assembled view of the vacuum pump
- Figure 2 is a perspective view of the housing without
- Rotor and vanes showing the two outlet openings in the peripheral wall.
- a vacuum pump in which the housing 12 is shown without housing cover.
- the housing 12 has a suction port 14, which opens into an interior 16.
- a generally designated 18 rotor in which a wing 20 is mounted orthogonal to the axis of rotation 21 slidably.
- the rotor 18 has a rotor housing 24, with which it bears against an inner peripheral surface 22 of a working space 30.
- the rotor 18 passes through the housing 12, in particular a bottom 26 of the interior 18 via a drive opening 28 and protrudes on the rear side out of the housing 12, so that it can be rotated (by means of a drive, not shown).
- the drive opening 28 is provided with suitable sealing means, so that neither lubricant leak nor air and / or dirt in the interior 16 can occur.
- the interior 16 is divided by the wing 20 into a suction chamber 40 and a pressure chamber 42.
- an insert 38 is positioned at the transition from the suction chamber 40 to the pressure chamber 42.
- this transition is designated by reference numeral 44, whereby at this transition 44, the peripheral wall 46 of the circular-cylindrical rotor housing 24 rests against the inner circumferential surface 22. It is clear that in this area of transition 44 in the Inner circumferential surface 22 both an air outlet opening 48 and an oil outlet 50 are located.
- Air outlet 48 extends over a portion of the height of the inner peripheral surface 22, but it may also extend over the entire height of the inner peripheral surface 22 or at least over a substantial part of this height.
- the air outlet opening 48 extends in the circumferential direction away from the transition 44 and ends in an oblique front edge 52. This avoids that the air outlet opening 48 opens abruptly, or the pressure chamber 42 is too fast connected to the air outlet opening 48, whereby pressure surges can occur , The gradual opening is assisted by the fact that the channel of the air outlet opening 48 gradually increases in its radial depth in the direction of rotation of the wing 20 (arrow 54 according to FIG. 1).
- the air outlet opening 48 opens into the insert 38, which is shown in Figure 2 above an insert 38 receiving opening 56.
- the channel of the air outlet opening 48 is deflected downward, so that the expelled gas of the housing 12 in the direction of the axis of the opening 56 leaves downward.
- valve body 58 Between the insert 38 and the air outlet opening 48 is still a valve body 58, in which an outlet valve 60 is provided.
- the valve body 58 has a further outlet valve 62 which is assigned to the oil outlet opening 50 and closes it. Both outlet valves 60 and 62 are formed as leaf spring valves and open both in the direction of the insert 38 and thereby prevent suction through the openings 48 and 50 in the direction of the interior 16.
- the insert 38 has a shape and thickness of Valve body 58 corresponding recess 64, in which the Valve body 58 is inserted before the insert 38 is inserted into the opening 56.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Rotary Pumps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004034926A DE102004034926B3 (en) | 2004-07-09 | 2004-07-09 | A single-blade |
PCT/EP2005/004212 WO2006005383A1 (en) | 2004-07-09 | 2005-04-20 | Single-winged vacuum pump |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1766239A1 true EP1766239A1 (en) | 2007-03-28 |
EP1766239B1 EP1766239B1 (en) | 2008-12-03 |
Family
ID=34966845
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05739759A Not-in-force EP1766239B1 (en) | 2004-07-09 | 2005-04-20 | Single-winged vacuum pump |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1766239B1 (en) |
KR (1) | KR20070034090A (en) |
CN (1) | CN101002022B (en) |
CA (1) | CA2575780C (en) |
DE (2) | DE102004034926B3 (en) |
WO (1) | WO2006005383A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11506204B2 (en) | 2013-01-14 | 2022-11-22 | Schwäbische Hüttenwerke Automotive GmbH | Gas pump with pressure relief for reducing the starting torque |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITMI20051008A1 (en) | 2005-05-30 | 2006-11-30 | O M P Officine Mazzocco Pagnon | MOTOR DEPRESSOR FOR MOTOR VEHICLES AND NON-RETURN VALVE FOR THIS HEADER |
WO2008009251A1 (en) * | 2006-07-21 | 2008-01-24 | Ixetic Hückeswagen Gmbh | Vacuum pump |
DE112007001576A5 (en) * | 2006-07-21 | 2009-04-16 | Ixetic Hückeswagen Gmbh | vacuum pump |
DE102007001593B4 (en) * | 2007-01-04 | 2009-12-31 | Joma-Polytec Kunststofftechnik Gmbh | vacuum pump |
DE102007018247A1 (en) | 2007-04-12 | 2008-10-16 | Joma-Hydromechanic Gmbh | vacuum pump |
DE102010007255A1 (en) | 2010-02-09 | 2011-08-11 | Bayerische Motoren Werke Aktiengesellschaft, 80809 | Fluid pump for use in machine housing, has rotary shaft arranged in fluid delivery volume, where impeller is arranged at shaft |
DE102010044898A1 (en) * | 2010-09-09 | 2012-03-15 | Schwäbische Hüttenwerke Automotive GmbH | Vacuum pump with ventilation device |
KR101307912B1 (en) * | 2011-07-27 | 2013-09-13 | (주)모토닉 | Electric vacuum pump |
KR200470937Y1 (en) * | 2012-11-14 | 2014-02-05 | 금강정밀(주) | The structure of the vacuum pump equipped with a vacuum suction vehicles |
CN104747446B (en) * | 2015-01-27 | 2017-06-20 | 长城汽车股份有限公司 | A kind of vavuum pump, brakes and automobile |
EP3078858A1 (en) * | 2015-04-07 | 2016-10-12 | WABCO Europe BVBA | Compact, highly integrated, oil lubricated electric vacuum compressor |
WO2016192782A1 (en) * | 2015-06-02 | 2016-12-08 | Pierburg Pump Technology Gmbh | Automotive vacuum pump |
CN107923400A (en) * | 2015-08-19 | 2018-04-17 | 皮尔伯格泵技术有限责任公司 | The automobile vacuum pump of lubrication |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB191218254A (en) * | 1911-08-10 | 1900-01-01 | Baudot Joseph | Improvements in Rotary Pumps and Motors. |
US1781073A (en) * | 1928-06-16 | 1930-11-11 | Keystone Refrigerating Corp | Rotary compressor |
CH249478A (en) * | 1947-01-21 | 1947-06-30 | Wuetrich Ernst | Rotary piston machine for conveying liquid or gaseous media. |
GB1214185A (en) * | 1968-02-28 | 1970-12-02 | Labortechnik Ilmenau Veb | Liquid sealed rotary gas pump |
US4133617A (en) * | 1976-01-27 | 1979-01-09 | Thomas Roach | Vane type pump with optional high rate of flow or high pressure characteristics |
DE3307856C2 (en) * | 1983-03-05 | 1997-10-23 | Gnieser Gmbh Auto Technik | Pressure valve of a rotary piston compressor |
DE4019854B4 (en) * | 1989-07-10 | 2004-09-16 | Saurer Gmbh & Co. Kg | Vane vacuum pump |
DE4033420C2 (en) * | 1990-10-20 | 1999-09-02 | Bosch Gmbh Robert | Pressure valve |
DE4118934C2 (en) * | 1991-06-08 | 2001-04-05 | Bosch Gmbh Robert | compressor |
CN2219973Y (en) * | 1995-03-28 | 1996-02-14 | 陈时云 | Blade type vacuum pump |
JP2000205159A (en) * | 1999-01-11 | 2000-07-25 | Hitachi Ltd | Vane type vacuum pump |
DE29920737U1 (en) * | 1999-11-26 | 2000-02-03 | Leybold Vakuum GmbH, 50968 Köln | Vacuum pump with outlet |
DE50100666D1 (en) * | 2000-03-15 | 2003-10-30 | Joma Hydromechanic Gmbh | displacement |
KR100408152B1 (en) * | 2001-08-14 | 2003-12-01 | 주식회사 우성진공 | Cylinder structure of vacuum pump |
EP1563190A2 (en) * | 2002-11-13 | 2005-08-17 | LuK Automobiltechnik GmbH & Co. KG | Vacuum pump |
-
2004
- 2004-07-09 DE DE102004034926A patent/DE102004034926B3/en not_active Expired - Fee Related
-
2005
- 2005-04-20 EP EP05739759A patent/EP1766239B1/en not_active Not-in-force
- 2005-04-20 CA CA2575780A patent/CA2575780C/en not_active Expired - Fee Related
- 2005-04-20 DE DE502005006154T patent/DE502005006154D1/en not_active Expired - Fee Related
- 2005-04-20 CN CN2005800270419A patent/CN101002022B/en not_active Expired - Fee Related
- 2005-04-20 WO PCT/EP2005/004212 patent/WO2006005383A1/en active Application Filing
- 2005-04-20 KR KR1020077003038A patent/KR20070034090A/en not_active Application Discontinuation
Non-Patent Citations (1)
Title |
---|
See references of WO2006005383A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11506204B2 (en) | 2013-01-14 | 2022-11-22 | Schwäbische Hüttenwerke Automotive GmbH | Gas pump with pressure relief for reducing the starting torque |
Also Published As
Publication number | Publication date |
---|---|
DE502005006154D1 (en) | 2009-01-15 |
CN101002022B (en) | 2012-06-06 |
KR20070034090A (en) | 2007-03-27 |
CA2575780C (en) | 2015-07-07 |
DE102004034926B3 (en) | 2005-12-29 |
CA2575780A1 (en) | 2006-01-19 |
WO2006005383A1 (en) | 2006-01-19 |
CN101002022A (en) | 2007-07-18 |
EP1766239B1 (en) | 2008-12-03 |
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