US3809511A - Valve arrangement for a compressor - Google Patents

Valve arrangement for a compressor Download PDF

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Publication number
US3809511A
US3809511A US35413573A US3809511A US 3809511 A US3809511 A US 3809511A US 35413573 A US35413573 A US 35413573A US 3809511 A US3809511 A US 3809511A
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US
United States
Prior art keywords
valve
wall
outlet
valve arrangement
base 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.)
Expired - Lifetime
Application number
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English (en)
Inventor
J Hess
E Linder
G Adalbert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Application granted granted Critical
Publication of US3809511A publication Critical patent/US3809511A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7504—Removable valve head and seat unit
    • Y10T137/7559—Pump type

Definitions

  • ABSTRACT 30 l D 1 Forelgn App canon Pnomy aka The axially aligned outlet openings in an endless inner May 3, 1972 Germany 2221541 housing wall surrounding the vane rotor ofa compres I sor, are connected by valves with a housing space be- [52] 11.8.
  • C1 418/259, l37/454.4, 441174725746 tween the inner housing wall and an outer housing wall having a discharge outlet.
  • valves are mounted l' jf 5 on a common valve plate which slidingly engages the e 248 inner wall while a pair of springs fixedly abut the com- 5 4 mon valve plate, and slidingly abut the outer housing wall so that a valve unit is formed by the springs; valve 56 R f d plate and valves, which can be removed from and in- UNITE]; gfrx rigs :ZTENTS serted into the housing in axial direction.
  • the compressor shown in the drawing has a double-
  • the present invention relates to a valve arrangement Walled housing with an Outer Wall and an endless for a compressor, particularly a compressor for a cooling medium, having a rotor with vanes rotating in an oblong cylindrical working chamber.
  • the US. Pat. No. 3,385,513 discloses a compressor ofthis type in which the vanes divide the working space between the rotor and the housing into high pressure and low pressure chambers communicating with outlet means and inlet means in the form of a plurality of bores through the endless inner wall surrounding the rotor and guiding the vanes.
  • the outlet bores are opened and closed by valve members which are part of a valve plate secured by screws to the inner endless wall.
  • valve arrangement according to the prior art has the disadvantage that the valve means can be assembled only during the assembly of the housing of the compressor, and that the valve means take up great space, increasing the size of the compressor.
  • Another object of the invention is to arrange the outlet valves in such a manner that they can be removed from, or inserted into, a housing space as a valve unit requiring no further adjustment.
  • a preferred embodiment of the invention provides a valve unit which resiliently fits a housing space into which the outlet openings of the high pressure chambers of the compressor open.
  • the arrangement of the invention has the advantage that the entire valve unit can be manufactured and as-' Illustd outside of the compressor housing, whereupon the valve unit is inserted into the housing space which is under pressure, and resiliently held by springs of the valve unit between the inner and outer housing walls forming the housing space.
  • valve unit It is particularly advantageous to hold the valve unit by resilient means, such as part-cylindrical springs. It is also advantageous to provide a common valve plate for a plurality of valves which may be stamped of sheet metal so that also valve seats are formed in the base plate.
  • FIG. 1 is a cross sectional view illustrating a vane compressor provided with the valve unit according to an embodiment of the invention.
  • FIG. 2 is a fragmentary perspective view illustrating an assembled valve unit.
  • the cylindrical inner surface 2a is ellipsoid and engages the outer ends or radial vanes 5 which are guided in radial slots 4b of a rotor 4 whose diameter corresponds to the shorter axis of the endless elipsoid inner surface 211.
  • two expanding and contracting chambers 3a and 3b are formed between the outer surface 4a of'rotor 4 and the cylindrical ellipsoid inner surface 2a of the outer wall 2, two expanding and contracting chambers 3a and 3b are formed.
  • the vanes 5 divide the chambers 3a, 3b into intervane chambers.
  • Each of chambers 3a and 3b has a suction portion where low pressure prevails, and a pressure portion where high pressure prevails.
  • the suction chambers 20 are connected by inlet means 6 and a space 6a with the inlet of the compressor. while the high pressure chamber 21 of each chamber 3a, 3b has an outlet means 8 into a housing space in which a valve unit 9 is located for connecting the outlet means 8 with a discharge outlet, not shown, in the housing of the compressor.
  • FIG. 2 only shows three valve members I3, two of which are broken off.
  • each valve unit 9 has a common base plate 10 with, for example, three or five passages 11 respectively registering with the outlets 8, and receiving therefrom fluid under high pressure.
  • Each passage 11 is surrounded by a pressed collar 12 whose annular edge 12a is ground to form a valve seat cooperating with a valve member 13 forming a prong of the comb-shaped structure 14.
  • a corresponding comb-shaped structure 16 has abutment members 15 in the form of prongs 15 which are respec tively superimposed on the valve prongs 13.
  • prongs 15 are rigid and prongs 13 are resilient to normally abut the valve seat 12a, respectively.
  • the common valve plate 10 has a stepped portion which is located in a matching axially extending guideway or guide recess 2b in the inner wall 2, in which also a sealing member is located, surrounding the outlets 8.
  • a pair of part-cylindrical spring plates 18 has outer ends located in a guideway or guide recess lb of the outer housing wall 1.
  • the other ends of the curved spring plates abut the stepped portion 10a of base plate 10 which is located in the guideway 2b.
  • the straight inner edges of the springs 18 abut opposite sides of the collars 12. Due to the action of springs 18 which press the valve plate 10 against the inner wall 2, the valve unit 9 is supported in the housing space 8a, but can be axially shifted for removal or insertion while resiliently sliding in the recesses lb and 2b.
  • valve unit 9 is insered in axial direction into the housing space 8a until the openings 11 in valve seats 12, 12a
  • vanes 5 move along the cylindrical ellipsoid inner surface of the inner endless wall 2.
  • the intervane spaces 20 expand, and the intervane spaces 21 contract so that fluid is sucked in through inlets 6, housing spaces 6a, and housing inlet 7.
  • the intervane spaces 21 contract, so that the compressed fluid is discharged through the outlets 8 and the opened valve members 13 which cooperate with the seats 12a on collars 12 of the base plate 10.
  • the pressure from outlets 8 resiliently displaces the valve members 13 so that the fluid can flow from outlets 8 through passages 11 and through the housing space 8a to a discharge outlet, not shown, on the housing.
  • valve structure 14, 13, and the abutment structure 16, 15 can be made of sheet metal and combined in a unit with valve plate 10 by rivets 17. It is evident that the valve unit construction according to the invention may be used with a compressor of a different type. In accordance with a modification of the invention, not shown, a plurality of superimposed valve structures 14, 13 made of thin elastic sheets, may be substituted for the single comb-shaped valve unit l4, 13 shown in FIG. 2.
  • a valve arrangement comprises a rotary compressor including housing means having an endless inner wall 2 forming a working chamber 3, and an outer wall 1 forming 4 are intended to becomprehended within the meaning and range of equivalence of the following claims.
  • Valve arrangement for a compressor comprising a rotary compressor including housing means having an endless inner wall forming a working chamber, and an outer wall forming with said inner wall a housing space having a discharge outlet, said inner wall having at least one inlet means and at least one outlet means; rotor means in said working chamber forming therein at least one pressure chamber and at least one suction chamber, said pressure chamber being connected by said outlet means with said housing space; and at least one valve unit mounted in said housing space slidingly guided on said outer and inner walls for axial moveand 2b on the outer and inner walls 1, 2 for axial movement into and out of the housing space 8a, and including valve means 10-17 normally closing the outlet means 8, and being movable by high pressure fluid from the outlet means 8 to an open position for discharge of fluid through the housing space 8a and dis charge outlet, not shown.
  • valve means normally closing said outlet means, and being movable by high pressure fluid from said outlet means to an open position for discharge of fluid through said housing space and discharge outlet.
  • valve arrangement as claimed in claim 1, wherein said inner and outer walls have parallel axially extending guideways in said housing space; and wherein said valve unit has two portions guided in said guideways for axial movement so that said unit can be removed and inserted.
  • valve arrangement as-claimed in claim 1, wherein said outlet means includes a plurality of axially aligned outlet openings passing through said inner wall; wherein said valve means include a plurality of valves cooperating with said outlet openings, respectively; and wherein said valve unit includes resilient means abutting said valves and said outer wall for pressing said valve means against said inner wall.
  • each of said .valves includes a base member abutting said inner wall and having a va'lve seat registering with the respective outlet opening, a valve member normally closing the respective valve seat and being movable to an open position, and an abutment member on which said valve member abuts in said open position.
  • valve arrangement as defined in claim 5, wherein said base member form a base plate common to all said valves, wherein said valve members and said abutment members are superimposed prongs of comb-shaped structures; said valve unit including fastening means for securing said comb-shaped structures fixedly to said base plate; and wherein said resilient means abut said base plate.
  • valve arrangement as claimed in claim 6, wherein said resilient means include a pair of part-cylindrical elastic plates abutting said base plate on opposite sides of said plurality of valve'seats.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
  • Rotary Pumps (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
US35413573 1972-05-03 1973-04-24 Valve arrangement for a compressor Expired - Lifetime US3809511A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722221541 DE2221541A1 (de) 1972-05-03 1972-05-03 Fluegelzellenkompressor

Publications (1)

Publication Number Publication Date
US3809511A true US3809511A (en) 1974-05-07

Family

ID=5843894

Family Applications (1)

Application Number Title Priority Date Filing Date
US35413573 Expired - Lifetime US3809511A (en) 1972-05-03 1973-04-24 Valve arrangement for a compressor

Country Status (4)

Country Link
US (1) US3809511A (en, 2012)
JP (1) JPS5529314B2 (en, 2012)
DE (1) DE2221541A1 (en, 2012)
IT (1) IT972609B (en, 2012)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4088428A (en) * 1976-08-12 1978-05-09 Whirlpool Corporation Discharge valve assembly for a compressor
US4127369A (en) * 1976-08-10 1978-11-28 Wankel Gmbh Pressure valve for a rotary piston compressor
US4149834A (en) * 1977-01-07 1979-04-17 Borsig Gmbh Delivery valve, especially for rotary piston compressors
US4199309A (en) * 1978-01-23 1980-04-22 Whirlpool Corporation Circular cavity discharge valve
US4373882A (en) * 1981-01-30 1983-02-15 General Electric Company Discharge valve assembly for compressor
US4505656A (en) * 1983-03-01 1985-03-19 Robert Bosch Gmbh Vane compressor, particularly a cooling medium compressor for use in air-conditioning equipment of a vehicle
EP0095140A3 (en) * 1982-05-19 1986-01-15 Hitachi, Ltd. Rotary compressor
US4668172A (en) * 1983-02-12 1987-05-26 Diesel Kiki Co., Ltd. Compressor having discharge valve means adapted to enhance the coefficient of performance of the compressor
US4702684A (en) * 1981-10-07 1987-10-27 Hitachi, Ltd. Slide vane type compressor with increased suction part-cross-sectional area
US4960371A (en) * 1989-01-30 1990-10-02 Bassett H Eugene Rotary compressor for heavy duty gas services
US5310326A (en) * 1992-09-14 1994-05-10 Mainstream Engineering Corporation Rotary compressor with improved bore configuration and lubrication system
WO2006129333A1 (en) * 2005-05-30 2006-12-07 O.M.P. Officine Mazzocco Pagnoni S.R.L. Vacuum pump for vehicle motors and a one-way valve for said vacuum pump
US20070148011A1 (en) * 2003-05-26 2007-06-28 Luk Automobiltechnik Gmbh & Co. Kg Vane-cell pump provided with a deep-drawn metal-sheet pot
US20080145257A1 (en) * 2006-12-13 2008-06-19 Pfeiffer Vacuum Gmbh Lubricant-tight vane rotary vacuum pump
US20080181796A1 (en) * 2004-06-24 2008-07-31 Luk Automobiltechnik Gmbh & Co. Kg Pump
US20220112808A1 (en) * 2020-10-13 2022-04-14 Charles H. Tuckey Rotary pump with discharge control

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2742797A1 (de) * 1977-09-23 1979-04-05 Bosch Gmbh Robert Kraftstoffeinspritzanlage
JPS59180097A (ja) * 1983-03-31 1984-10-12 Toshiba Corp ロ−タリ形圧縮機
DE4033456C2 (de) * 1990-10-20 1999-09-02 Bosch Gmbh Robert Kompressor
DE4141115C2 (de) * 1991-02-18 2000-04-06 Wabco Gmbh Druckventil für einen Kompressor
DE102010026032A1 (de) * 2010-07-03 2012-01-05 Mahle International Gmbh Flatterventil und Drehschieberpumpe
DE102018214369A1 (de) 2018-08-24 2020-02-27 Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg Ventilbaugruppe für einen elektrischen Kältemittelverdichter
DE102023107253A1 (de) * 2023-03-22 2024-09-26 Thyssenkrupp Ag Ventilzungenanordnung für einen Radialkolbenverdichter, Radialkolbenverdichter und Verfahren zur Montage einer Ventilzungenanordnung an einem Radialkolbenverdichter

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2135515A (en) * 1931-01-31 1938-11-08 Gen Motors Corp Refrigerating apparatus
US2848157A (en) * 1953-06-26 1958-08-19 Carrier Corp Compressor valve arrangement
US3312387A (en) * 1964-12-30 1967-04-04 Borg Warner Lubrication system for rotary compressor
US3385513A (en) * 1966-04-11 1968-05-28 Trw Inc Refrigerant vapor compressor
US3561894A (en) * 1969-04-07 1971-02-09 Copeland Refrigeration Corp Intake charge cooling system for rotary machine
US3649140A (en) * 1970-05-11 1972-03-14 Borg Warner Oil metering system for rotary compressor

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2135515A (en) * 1931-01-31 1938-11-08 Gen Motors Corp Refrigerating apparatus
US2848157A (en) * 1953-06-26 1958-08-19 Carrier Corp Compressor valve arrangement
US3312387A (en) * 1964-12-30 1967-04-04 Borg Warner Lubrication system for rotary compressor
US3385513A (en) * 1966-04-11 1968-05-28 Trw Inc Refrigerant vapor compressor
US3561894A (en) * 1969-04-07 1971-02-09 Copeland Refrigeration Corp Intake charge cooling system for rotary machine
US3649140A (en) * 1970-05-11 1972-03-14 Borg Warner Oil metering system for rotary compressor

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4127369A (en) * 1976-08-10 1978-11-28 Wankel Gmbh Pressure valve for a rotary piston compressor
US4088428A (en) * 1976-08-12 1978-05-09 Whirlpool Corporation Discharge valve assembly for a compressor
US4149834A (en) * 1977-01-07 1979-04-17 Borsig Gmbh Delivery valve, especially for rotary piston compressors
US4199309A (en) * 1978-01-23 1980-04-22 Whirlpool Corporation Circular cavity discharge valve
US4373882A (en) * 1981-01-30 1983-02-15 General Electric Company Discharge valve assembly for compressor
US4702684A (en) * 1981-10-07 1987-10-27 Hitachi, Ltd. Slide vane type compressor with increased suction part-cross-sectional area
EP0095140A3 (en) * 1982-05-19 1986-01-15 Hitachi, Ltd. Rotary compressor
US4668172A (en) * 1983-02-12 1987-05-26 Diesel Kiki Co., Ltd. Compressor having discharge valve means adapted to enhance the coefficient of performance of the compressor
US4505656A (en) * 1983-03-01 1985-03-19 Robert Bosch Gmbh Vane compressor, particularly a cooling medium compressor for use in air-conditioning equipment of a vehicle
US4960371A (en) * 1989-01-30 1990-10-02 Bassett H Eugene Rotary compressor for heavy duty gas services
US5310326A (en) * 1992-09-14 1994-05-10 Mainstream Engineering Corporation Rotary compressor with improved bore configuration and lubrication system
US20070148011A1 (en) * 2003-05-26 2007-06-28 Luk Automobiltechnik Gmbh & Co. Kg Vane-cell pump provided with a deep-drawn metal-sheet pot
US20080181796A1 (en) * 2004-06-24 2008-07-31 Luk Automobiltechnik Gmbh & Co. Kg Pump
US8425204B2 (en) * 2004-06-24 2013-04-23 Luk Automobiltechnik Gmbh & Co. Kg Pump
WO2006129333A1 (en) * 2005-05-30 2006-12-07 O.M.P. Officine Mazzocco Pagnoni S.R.L. Vacuum pump for vehicle motors and a one-way valve for said vacuum pump
US20080199342A1 (en) * 2005-05-30 2008-08-21 O.M.P. Officine Mazzocco Pagnoni S.R.L. Vacuum Pump for Vehicle Motors and a One-Way Valve for Said Vacuum Pump
US7918659B2 (en) 2005-05-30 2011-04-05 O.M.P. Officine Mazzocco Pagnoni, S.R.L. Vacuum pump for a vehicle with multiple one-way valves
CN101218434B (zh) * 2005-05-30 2012-08-29 O.M.P.奥菲奇内马佐科帕尼奥尼有限公司 用于车辆马达的真空泵以及用于所述真空泵的单向阀
US20080145257A1 (en) * 2006-12-13 2008-06-19 Pfeiffer Vacuum Gmbh Lubricant-tight vane rotary vacuum pump
US8202072B2 (en) 2006-12-13 2012-06-19 Pfeiffer Vacuum Gmbh Lubricant-tight vane rotary vacuum pump
US20220112808A1 (en) * 2020-10-13 2022-04-14 Charles H. Tuckey Rotary pump with discharge control
US11828181B2 (en) * 2020-10-13 2023-11-28 Charles H. Tuckey Rotary pump with discharge control

Also Published As

Publication number Publication date
IT972609B (it) 1974-05-31
JPS5529314B2 (en, 2012) 1980-08-02
JPS4947921A (en, 2012) 1974-05-09
DE2221541A1 (de) 1973-11-22

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