WO2015090715A1 - Auslassventil - Google Patents
Auslassventil Download PDFInfo
- Publication number
- WO2015090715A1 WO2015090715A1 PCT/EP2014/073817 EP2014073817W WO2015090715A1 WO 2015090715 A1 WO2015090715 A1 WO 2015090715A1 EP 2014073817 W EP2014073817 W EP 2014073817W WO 2015090715 A1 WO2015090715 A1 WO 2015090715A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- valve spring
- spring
- valve
- main valve
- outlet
- Prior art date
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
- 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
-
- 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
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/14—Check valves with flexible valve members
- F16K15/16—Check valves with flexible valve members with tongue-shaped laminae
-
- 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
-
- 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
- F04C2240/00—Components
- F04C2240/30—Casings or housings
Definitions
- the invention relates to an outlet valve, in particular a vacuum pump, having a main valve spring which closes at least one outlet opening in a closed state of the outlet valve, from which lifts the main valve spring when opening the exhaust valve, and with a hold-down, the stop for the main valve spring Open, wherein at least one additional valve spring between the main valve spring and the hold-down is arranged.
- a vacuum pump which comprises an outlet valve with at least one metal part, which has at least one plastic layer to improve the sealing and / or damping properties, wherein the metal part is a valve spring, which in a closed state closes at least one outlet opening, from which it lifts off when opening.
- a leaf spring with a main blade and a shortened additional sheet is known. The additional spring influences the resonance behavior of the spring valve. However, this does not solve the problem of pressure pulsations satisfactorily.
- the object of the invention is the performance of an exhaust valve with a main valve spring, which closes in a closed state of the exhaust valve at least one outlet opening from which lifts the main valve spring when opening the exhaust valve, and with a hold-down, which represents a stop for the main valve spring when opening , wherein at least one auxiliary valve spring between the main valve spring and the hold-down is to improve.
- the object is with an outlet valve, in particular a vacuum pump, with a main valve spring, which closes in a closed state of the outlet valve at least one outlet opening from which the main valve spring at
- the auxiliary valve spring is not fully in the closed state of the exhaust valve to the main valve spring. This achieves in a simple manner that the main valve spring can initially open independently of the additional valve spring. Only when the main valve spring is opened to a part, the main valve spring comes to rest on the auxiliary valve spring.
- the main valve spring and the auxiliary valve spring move together towards the hold-down.
- the additional valve spring is a resistance when opening the main valve spring.
- the inventive arrangement of the additional valve spring between the main valve spring and the hold-down a progressive spring characteristic of the exhaust valve can be particularly advantageous.
- the outlet valve can also be referred to as a check valve because the main valve spring automatically closes the outlet opening in the closed state of the outlet valve as long as there is no overpressure at the outlet opening.
- the exhaust valve has an auxiliary valve spring in relation to the main valve spring a greater thickness and the same length to the free ends. To achieve the progressive characteristic.
- the auxiliary valve spring has, for example, a thickness of 0.5 to 0.8 millimeters. This thickness range has proven to be particularly advantageous in investigations carried out in the context of the present invention
- a preferred embodiment of the exhaust valve is characterized in that the auxiliary valve spring is spaced in the closed state of the exhaust valve with a free end of a free end of the blank holder. This is achieved in a simple manner that the main valve spring and the auxiliary valve spring can move together when opening the exhaust valve on the hold-down.
- a further preferred embodiment of the exhaust valve is characterized in that the main valve spring, the auxiliary valve spring and the hold-down with their ends facing away from the free ends are firmly clamped together. This considerably simplifies the assembly of the exhaust valve according to the invention.
- the attachment of the main valve spring, the auxiliary valve spring and the hold-down over the outlet opening to a pump housing can for example be done with a fastener, such as a fastening screw.
- Another preferred embodiment of the exhaust valve is characterized in that the exhaust valve with the main valve spring and the additional valve spring has a progressive spring characteristic. Progressive means that the spring characteristic curve does not increase linearly, but has an increasingly rising or increasing or exponentially increasing profile. Due to the progressive spring characteristic, the operating behavior of the outlet valve can be significantly improved, in particular in special operating states of a vacuum pump equipped with the outlet valve. Particularly advantageous, the life of the exhaust valve, in particular a equipped with the exhaust valve vacuum pump can be extended in a simple manner.
- the main valve spring is formed as a flat shape spring made of spring steel. The main valve spring is in the closed state of the exhaust valve sealingly against the outlet opening and closes it.
- a further preferred embodiment of the exhaust valve is characterized in that the main valve spring has a smaller thickness in relation to the additional valve spring.
- the main valve spring has, for example, a thickness of 0.1 5 to 0.2 millimeters. This thickness range has proven to be particularly advantageous in investigations carried out in the context of the present invention.
- auxiliary valve spring has a curved shape.
- the auxiliary valve spring is not in the closed state of the exhaust valve to the main valve spring.
- the auxiliary valve spring is advantageous only at its clamped together with the main valve spring end of the main valve spring. Starting from the clamping point, the auxiliary valve spring is bent away from the main valve spring.
- a further preferred embodiment of the exhaust valve is characterized in that the additional valve spring has an elliptically curved shape.
- the elliptical shape of the auxiliary valve spring bent away from the main valve spring has been found to be particularly advantageous in investigations carried out in the context of the present invention.
- the additional valve spring is formed of spring steel.
- the auxiliary valve spring may be formed of the same or a similar material as the main valve spring. As a result, the manufacturing costs of the exhaust valve can be reduced.
- a further preferred embodiment of the outlet valve is characterized in that the hold-down has a curved shape.
- the hold-down is advantageously slightly more curved or curved than the auxiliary valve spring. This is achieved in a simple manner that the auxiliary valve spring can move together with the main valve spring on the hold-down to represent the progressive spring characteristic of the exhaust valve.
- a further preferred embodiment of the outlet valve is characterized in that the hold-down has an elliptically curved shape.
- the elliptically curved shape of the hold-down has proved to be particularly advantageous in investigations carried out in the context of the present invention.
- the shape of the hold-down may substantially correspond to a bending line of a cantilevered bending beam, that is, a cantilever.
- the hold-down is formed of steel.
- the hold-down is preferably formed of a relatively soft steel, because he has to fulfill a resilient function only to a small extent and is cheaper to buy.
- a further preferred embodiment of the outlet valve is characterized in that the hold-down has a greater thickness in relation to the additional valve spring.
- the hold-down has a thickness of 1.5 to 2.0 millimeters. This thickness range has proven to be particularly advantageous in investigations carried out in the context of the present invention.
- the invention further relates to a vacuum pump having an outlet opening and an outlet valve described above.
- the vacuum pump is, for example, a vacuum pump as disclosed in International Publications WO 2009/018906 A1 and WO 2010/145633 A2.
- Vacuum pumps are used in motor vehicles, for example, to generate a vacuum in a brake booster.
- the two springs and the hold-down preferably have substantially the same shape in plan view.
- the main valve spring is in any case so large that it can safely close the outlet opening.
- the auxiliary valve spring has, apart from its curved shape, in the plan view, preferably the same shape as the main valve spring.
- a small part of a vacuum pump 1 with a housing 3 is shown in section.
- a (not shown) rotor is rotatably arranged.
- At least one wing (also not shown) is displaceably guided in or on the rotor.
- the rotor hugs with its outer contour in a so-called Schmiegespalt to an inner contour of the housing 3.
- a suction chamber and a pressure chamber are generated in a working space of the vacuum pump 1 in the housing 3 during rotation, and vice versa.
- the suction chamber communicates with a suction connection, via which a medium, in particular air, for example from a brake booster, is sucked into the working space and conveyed out via an outlet opening 4.
- the pressurized medium in the working space during rotation passes through the outlet opening 4 in the vicinity of the vacuum pump 1, where atmospheric pressure prevails.
- air is normally expelled from the pressure chamber through the outlet opening 4 with oil components contained in it.
- the outlet opening 4 is part of a check valve designed as an exhaust valve 10, which prevents backflow of air from the environment into the pressure chamber, as long as the pressure in the pressure chamber is less than the ambient pressure.
- the exhaust valve 10 comprises a main valve spring 1 1, an additional valve spring 12 and a hold-down 15.
- the main valve spring 1 1, the auxiliary valve spring 12 and the hold-down 15 are designed and arranged so that together they represent a progressive spring characteristic.
- the main valve spring 1 1, the auxiliary valve spring 12 and the hold-down 15 are fixed by means of a fastening screw 20 with one end to the housing 3.
- the main valve spring 1 1, the auxiliary valve spring 12 and the hold-down 15 each have a through hole.
- the fastening screw 20 extends through the through holes. By the fastening screw 20, the main valve spring 1 1, the auxiliary valve spring 12 and the hold-down 15 are firmly clamped with one end.
- the opposite ends 21, 22, 25 of the main valve spring 1 1, the auxiliary valve spring 12 and the hold-down 15 are not clamped or fixed to the housing 3 and are therefore referred to as free ends.
- the main valve spring 1 1 is designed as a flat shape spring and is located in the illustrated closed state of the exhaust valve 10 at the outlet opening 4, that the outlet port 4 is closed by the main valve spring 1 1.
- the auxiliary valve spring 12 is spaced in the illustrated closed state of the exhaust valve 10 with its free end 22 of the free end 21 of the main valve spring 1 1.
- the auxiliary valve spring 12 is elliptically bent or curved.
- the hold-down 15 is also elliptically curved or bent. there the hold-down 15 is slightly more curved or bent than the auxiliary valve spring 12th
- the designed as a flat-form spring main valve spring 1 1 is formed of spring steel and has a thickness of, for example, 0.15 to 0.2 millimeters.
- the spring steel, from which the main valve spring 1 1 is formed is, for example, a corrosion-resistant material, in particular a chromium-nickel-alloyed steel.
- the elliptically curved auxiliary valve spring 12 is also formed of spring steel and has a thickness of, for example, 0.5 to 0.8 millimeters.
- the spring steel from which the auxiliary valve spring 12 is formed is, for example, a corrosion-resistant material.
- the elliptically curved hold-down 15 is formed of a relatively soft steel and has a thickness of, for example, 1, 5 to 2.0 millimeters.
- the elliptical shape of the bent auxiliary valve spring 12 and of the curved lower holder 15 advantageously effects an increase in the prestress of the main valve spring 1 1, which is designed as a flat-form spring, during opening. This results in an advantageous stabilization of the spring kinematics.
- the elliptical shape of the hold-down 15 and the additional valve spring 12 prevents an undesirably hard striking of the free end 21 of the main valve spring 11 and / or the auxiliary valve spring 12 on the hold-down 15. Due to the inventive design of the exhaust valve 10, a safe operation of the vacuum pump 1 is possible both under normal conditions and during cold start in a simple manner. LIST OF REFERENCES
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Check Valves (AREA)
- Details Of Valves (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/103,919 US9863422B2 (en) | 2013-12-17 | 2014-11-05 | Vacuum pump outlet valve |
CN201480068760.4A CN105829725B (zh) | 2013-12-17 | 2014-11-05 | 排出阀 |
CA2934370A CA2934370C (en) | 2013-12-17 | 2014-11-05 | Outlet valve |
DE112014005726.6T DE112014005726A5 (de) | 2013-12-17 | 2014-11-05 | Auslassventil |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013114191 | 2013-12-17 | ||
DE102013114191.9 | 2013-12-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015090715A1 true WO2015090715A1 (de) | 2015-06-25 |
Family
ID=51905003
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2014/073817 WO2015090715A1 (de) | 2013-12-17 | 2014-11-05 | Auslassventil |
Country Status (5)
Country | Link |
---|---|
US (1) | US9863422B2 (de) |
CN (1) | CN105829725B (de) |
CA (1) | CA2934370C (de) |
DE (1) | DE112014005726A5 (de) |
WO (1) | WO2015090715A1 (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016207115A1 (de) * | 2016-04-27 | 2017-11-02 | Mahle International Gmbh | Rückschlagventil für eine Vakuumpumpe |
DE102016207123A1 (de) * | 2016-04-27 | 2017-11-02 | Mahle International Gmbh | Rückschlagventil für eine Vakuumpumpe |
DE102016210102A1 (de) * | 2016-06-08 | 2017-12-14 | Mahle International Gmbh | Rückschlagventil für eine Vakuumpumpe |
WO2018224117A1 (en) | 2017-06-09 | 2018-12-13 | Wabco Europe Bvba | A vacuum pump reed valve which will reduce cold start torque |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107606252B (zh) * | 2017-08-02 | 2024-04-30 | 南京岚煜生物科技有限公司 | 用于微流控芯片的无源单向阀 |
KR102081943B1 (ko) * | 2018-07-30 | 2020-02-26 | 엘지전자 주식회사 | 유체압축기 |
CN109139479A (zh) * | 2018-08-10 | 2019-01-04 | 珠海格力电器股份有限公司 | 一种排气系统和压缩机 |
CN110285039A (zh) * | 2019-08-01 | 2019-09-27 | 黄石东贝电器股份有限公司 | 一种具有导流功能的排气阀片及其制冷压缩机 |
US11969886B2 (en) * | 2021-06-01 | 2024-04-30 | J.Schmalz Gmbh | Valve device for a vacuum handling device or a vacuum clamping device |
US20230083167A1 (en) * | 2021-08-27 | 2023-03-16 | Charles H. Tuckey | Rotary pump or motor with improved intake, exhaust, vane and bearingless sleeve features |
CN114060328A (zh) * | 2021-11-17 | 2022-02-18 | 浙江科力车辆控制系统有限公司 | 一种带油箱止回背压阀的液压举升装置 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3508182A1 (de) | 1984-03-09 | 1985-09-19 | Kioritz Corp., Mitaka, Tokio/Tokyo | Blattfederventil |
WO2009018906A1 (de) | 2007-08-04 | 2009-02-12 | Ixetic Hückeswagen Gmbh | Vakuumpumpe |
WO2010145633A2 (de) | 2009-06-17 | 2010-12-23 | Ixetic Hückeswagen Gmbh | Vakuumpumpe |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6165973A (ja) | 1984-09-06 | 1986-04-04 | Mitsubishi Electric Corp | 圧縮機の冷媒吐出弁装置 |
KR19990074424A (ko) | 1998-03-11 | 1999-10-05 | 윤종용 | 압축기의 토출 밸브 조립체 |
KR100406640B1 (ko) * | 2001-10-10 | 2003-11-21 | 삼성광주전자 주식회사 | 밀폐형 압축기의 밸브장치 |
JP4552432B2 (ja) * | 2003-12-11 | 2010-09-29 | ダイキン工業株式会社 | 圧縮機 |
JP4774834B2 (ja) | 2005-07-04 | 2011-09-14 | パナソニック株式会社 | 冷媒圧縮機 |
-
2014
- 2014-11-05 US US15/103,919 patent/US9863422B2/en active Active
- 2014-11-05 CA CA2934370A patent/CA2934370C/en active Active
- 2014-11-05 WO PCT/EP2014/073817 patent/WO2015090715A1/de active Application Filing
- 2014-11-05 DE DE112014005726.6T patent/DE112014005726A5/de active Pending
- 2014-11-05 CN CN201480068760.4A patent/CN105829725B/zh active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3508182A1 (de) | 1984-03-09 | 1985-09-19 | Kioritz Corp., Mitaka, Tokio/Tokyo | Blattfederventil |
WO2009018906A1 (de) | 2007-08-04 | 2009-02-12 | Ixetic Hückeswagen Gmbh | Vakuumpumpe |
WO2010145633A2 (de) | 2009-06-17 | 2010-12-23 | Ixetic Hückeswagen Gmbh | Vakuumpumpe |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016207115A1 (de) * | 2016-04-27 | 2017-11-02 | Mahle International Gmbh | Rückschlagventil für eine Vakuumpumpe |
DE102016207123A1 (de) * | 2016-04-27 | 2017-11-02 | Mahle International Gmbh | Rückschlagventil für eine Vakuumpumpe |
DE102016210102A1 (de) * | 2016-06-08 | 2017-12-14 | Mahle International Gmbh | Rückschlagventil für eine Vakuumpumpe |
WO2018224117A1 (en) | 2017-06-09 | 2018-12-13 | Wabco Europe Bvba | A vacuum pump reed valve which will reduce cold start torque |
US11143188B2 (en) | 2017-06-09 | 2021-10-12 | Zf Cv Systems Europe Bv | Vacuum pump reed valve which will reduce cold start torque |
Also Published As
Publication number | Publication date |
---|---|
US20160312783A1 (en) | 2016-10-27 |
CA2934370A1 (en) | 2015-06-25 |
CA2934370C (en) | 2021-06-15 |
DE112014005726A5 (de) | 2016-12-08 |
CN105829725A (zh) | 2016-08-03 |
US9863422B2 (en) | 2018-01-09 |
CN105829725B (zh) | 2019-01-18 |
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