DE3308227C2 - - Google Patents

Info

Publication number
DE3308227C2
DE3308227C2 DE3308227A DE3308227A DE3308227C2 DE 3308227 C2 DE3308227 C2 DE 3308227C2 DE 3308227 A DE3308227 A DE 3308227A DE 3308227 A DE3308227 A DE 3308227A DE 3308227 C2 DE3308227 C2 DE 3308227C2
Authority
DE
Germany
Prior art keywords
spiral
wall
compressor according
fluid
partition
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
DE3308227A
Other languages
German (de)
English (en)
Other versions
DE3308227A1 (de
Inventor
David Henry La Crosse Wis. Us Eber
Robert Eugene Genoa Wis. Us Utter
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.)
Trane Co
Original Assignee
Trane Co
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 Trane Co filed Critical Trane Co
Publication of DE3308227A1 publication Critical patent/DE3308227A1/de
Application granted granted Critical
Publication of DE3308227C2 publication Critical patent/DE3308227C2/de
Granted legal-status Critical Current

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
    • F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
    • F04C28/24—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading 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
    • F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • F04C14/06—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations specially adapted for stopping, starting, idling or no-load operation
    • F04C14/065—Capacity control using a multiplicity of units or pumping capacities, e.g. multiple chambers, individually switchable or controllable
    • 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
    • F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
    • F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
    • 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
    • F04C2250/00—Geometry
    • F04C2250/10—Geometry of the inlet or outlet
    • 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
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/008—Hermetic pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2250/00—Geometry
    • F05B2250/50—Inlet or outlet
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S417/00—Pumps
    • Y10S417/902—Hermetically sealed motor pump unit

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Rotary Pumps (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
DE19833308227 1982-03-05 1983-03-04 Schneckenkompressor Granted DE3308227A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/354,989 US4431388A (en) 1982-03-05 1982-03-05 Controlled suction unloading in a scroll compressor

Publications (2)

Publication Number Publication Date
DE3308227A1 DE3308227A1 (de) 1983-09-08
DE3308227C2 true DE3308227C2 (US07655688-20100202-C00548.png) 1991-07-25

Family

ID=23395788

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19833308227 Granted DE3308227A1 (de) 1982-03-05 1983-03-04 Schneckenkompressor

Country Status (6)

Country Link
US (1) US4431388A (US07655688-20100202-C00548.png)
JP (1) JPS58190595A (US07655688-20100202-C00548.png)
CA (1) CA1233144A (US07655688-20100202-C00548.png)
DE (1) DE3308227A1 (US07655688-20100202-C00548.png)
FR (1) FR2522733B1 (US07655688-20100202-C00548.png)
GB (1) GB2116635B (US07655688-20100202-C00548.png)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3525933A1 (de) * 1985-07-19 1987-01-29 Bock Gmbh & Co Kaeltemaschinen Spiralverdichter
DE102016108555A1 (de) * 2016-05-10 2017-11-16 Technische Universität Dresden Scrollmaschine mit einstellbarem Volumenverhältnis

Families Citing this family (91)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4431380A (en) * 1982-06-07 1984-02-14 The Trane Company Scroll compressor with controlled suction unloading using coupling means
JPS5928083A (ja) * 1982-08-07 1984-02-14 Sanden Corp スクロ−ル型圧縮機
JPS59110884A (ja) * 1982-12-17 1984-06-26 Hitachi Ltd スクロ−ル圧縮機
JPS59224493A (ja) * 1983-06-03 1984-12-17 Mitsubishi Electric Corp スクロ−ル圧縮機
JPS6013995A (ja) * 1983-07-01 1985-01-24 Mitsubishi Electric Corp スクロ−ル形流体機械
JPS60101296A (ja) * 1983-10-21 1985-06-05 Hitachi Ltd スクロール圧縮機
JPS60101295A (ja) * 1983-11-08 1985-06-05 Sanden Corp 圧縮容量可変型のスクロ−ル型圧縮機
US4552518A (en) * 1984-02-21 1985-11-12 American Standard Inc. Scroll machine with discharge passage through orbiting scroll plate and associated lubrication system
US4522575A (en) * 1984-02-21 1985-06-11 American Standard Inc. Scroll machine using discharge pressure for axial sealing
JPS6128782A (ja) * 1984-07-20 1986-02-08 Toshiba Corp スクロ−ルコンプレツサ
JPS61169686A (ja) * 1985-01-23 1986-07-31 Hitachi Ltd スクロ−ル圧縮機
US4696627A (en) * 1985-08-15 1987-09-29 Nippondenso Co., Ltd. Scroll compressor
JPS6285189A (ja) * 1985-09-27 1987-04-18 Mitsubishi Electric Corp スクロ−ル圧縮機
JPS6275091A (ja) * 1985-09-30 1987-04-06 Toshiba Corp スクロ−ルコンプレツサ
US5219281A (en) * 1986-08-22 1993-06-15 Copeland Corporation Fluid compressor with liquid separating baffle overlying the inlet port
US4767293A (en) * 1986-08-22 1988-08-30 Copeland Corporation Scroll-type machine with axially compliant mounting
US5407335A (en) * 1986-08-22 1995-04-18 Copeland Corporation Non-orbiting scroll mounting arrangements for a scroll machine
US5102316A (en) * 1986-08-22 1992-04-07 Copeland Corporation Non-orbiting scroll mounting arrangements for a scroll machine
JPS6380089A (ja) * 1986-09-24 1988-04-11 Mitsubishi Electric Corp スクロ−ル真空ポンプ
JPH0615872B2 (ja) * 1987-06-30 1994-03-02 サンデン株式会社 可変容量型スクロ−ル圧縮機
US4820130A (en) * 1987-12-14 1989-04-11 American Standard Inc. Temperature sensitive solenoid valve in a scroll compressor
JP2780301B2 (ja) * 1989-02-02 1998-07-30 株式会社豊田自動織機製作所 スクロール型圧縮機における容量可変機構
WO1991017360A1 (en) * 1990-04-27 1991-11-14 Sanyo Electric Co., Ltd. Scroll compressor
US5141420A (en) * 1990-06-18 1992-08-25 Copeland Corporation Scroll compressor discharge valve
JP2712777B2 (ja) * 1990-07-13 1998-02-16 三菱電機株式会社 スクロール圧縮機
US5362210A (en) * 1993-02-26 1994-11-08 Tecumseh Products Company Scroll compressor unloader valve
US5803716A (en) * 1993-11-29 1998-09-08 Copeland Corporation Scroll machine with reverse rotation protection
JP3549631B2 (ja) * 1995-06-26 2004-08-04 サンデン株式会社 可変容量型スクロール圧縮機
US5496160A (en) * 1995-07-03 1996-03-05 Tecumseh Products Company Scroll compressor having a suction check valve
WO1997016649A1 (en) * 1995-11-02 1997-05-09 Aaf-Mcquay Incorporated Scroll compressors
DE69618976T2 (de) * 1995-11-02 2002-08-29 Aaf-Mcquay Inc., Baltimore Spiralverdichter
JP3723283B2 (ja) * 1996-06-25 2005-12-07 サンデン株式会社 スクロール型可変容量圧縮機
US6152700A (en) * 1996-12-05 2000-11-28 Maneurop Hermetic compressor with remote temperature sensing means
US5921761A (en) * 1997-04-17 1999-07-13 Copeland Corporation Scroll machine with discharge duct
US6206652B1 (en) * 1998-08-25 2001-03-27 Copeland Corporation Compressor capacity modulation
US6047556A (en) * 1997-12-08 2000-04-11 Carrier Corporation Pulsed flow for capacity control
US6203299B1 (en) * 1998-12-21 2001-03-20 Scroll Technologies Capacity modulation for scroll compressors
US6171084B1 (en) 1999-01-26 2001-01-09 Copeland Corporation Discharge valve
US6139291A (en) 1999-03-23 2000-10-31 Copeland Corporation Scroll machine with discharge valve
US6505475B1 (en) 1999-08-20 2003-01-14 Hudson Technologies Inc. Method and apparatus for measuring and improving efficiency in refrigeration systems
US6267565B1 (en) 1999-08-25 2001-07-31 Copeland Corporation Scroll temperature protection
US6241495B1 (en) * 1999-11-02 2001-06-05 Rechi Precision Co., Ltd. Modified positioning mechanism for stationary scroll of scroll compressor
JP3870642B2 (ja) * 1999-12-21 2007-01-24 株式会社デンソー 電動圧縮機
US6224356B1 (en) * 2000-01-05 2001-05-01 Scroll Technologies Check valve stop and ports
KR100390780B1 (ko) * 2000-12-29 2003-07-10 주식회사 엘지이아이 스크롤 압축기의 역회전 방지장치
US6668240B2 (en) 2001-05-03 2003-12-23 Emerson Retail Services Inc. Food quality and safety model for refrigerated food
US6892546B2 (en) 2001-05-03 2005-05-17 Emerson Retail Services, Inc. System for remote refrigeration monitoring and diagnostics
US6551069B2 (en) 2001-06-11 2003-04-22 Bristol Compressors, Inc. Compressor with a capacity modulation system utilizing a re-expansion chamber
US6889173B2 (en) 2002-10-31 2005-05-03 Emerson Retail Services Inc. System for monitoring optimal equipment operating parameters
US6821092B1 (en) 2003-07-15 2004-11-23 Copeland Corporation Capacity modulated scroll compressor
KR100557056B1 (ko) * 2003-07-26 2006-03-03 엘지전자 주식회사 용량 조절식 스크롤 압축기
US7160088B2 (en) * 2003-09-25 2007-01-09 Emerson Climate Technologies, Inc. Scroll machine
US7070401B2 (en) * 2004-03-15 2006-07-04 Copeland Corporation Scroll machine with stepped sleeve guide
US7412842B2 (en) 2004-04-27 2008-08-19 Emerson Climate Technologies, Inc. Compressor diagnostic and protection system
US7275377B2 (en) 2004-08-11 2007-10-02 Lawrence Kates Method and apparatus for monitoring refrigerant-cycle systems
KR100590494B1 (ko) * 2004-12-14 2006-06-19 엘지전자 주식회사 선회베인 압축기의 압축장치
WO2006091521A2 (en) 2005-02-21 2006-08-31 Computer Process Controls, Inc. Enterprise control and monitoring system
US20060228243A1 (en) * 2005-04-08 2006-10-12 Scroll Technologies Discharge valve structures for a scroll compressor having a separator plate
US20070036661A1 (en) * 2005-08-12 2007-02-15 Copeland Corporation Capacity modulated scroll compressor
WO2007027168A1 (en) * 2005-08-29 2007-03-08 Carrier Corporation Compressor muffler
US7665315B2 (en) 2005-10-21 2010-02-23 Emerson Retail Services, Inc. Proofing a refrigeration system operating state
US7752853B2 (en) 2005-10-21 2010-07-13 Emerson Retail Services, Inc. Monitoring refrigerant in a refrigeration system
US7752854B2 (en) 2005-10-21 2010-07-13 Emerson Retail Services, Inc. Monitoring a condenser in a refrigeration system
US8590325B2 (en) 2006-07-19 2013-11-26 Emerson Climate Technologies, Inc. Protection and diagnostic module for a refrigeration system
EP2049847A4 (en) * 2006-08-08 2013-09-18 Carrier Corp COMPRESSOR TEMPERATURE BASED SUCTION VALVE PULSE WIDTH MODULATION CONTROL
US20080216494A1 (en) 2006-09-07 2008-09-11 Pham Hung M Compressor data module
US9404499B2 (en) * 2006-12-01 2016-08-02 Emerson Climate Technologies, Inc. Dual chamber discharge muffler
US8157538B2 (en) 2007-07-23 2012-04-17 Emerson Climate Technologies, Inc. Capacity modulation system for compressor and method
US20090037142A1 (en) 2007-07-30 2009-02-05 Lawrence Kates Portable method and apparatus for monitoring refrigerant-cycle systems
US7959421B2 (en) * 2007-09-11 2011-06-14 Emerson Climate Technologies, Inc. Compressor having a shutdown valve
US9140728B2 (en) 2007-11-02 2015-09-22 Emerson Climate Technologies, Inc. Compressor sensor module
US8152500B2 (en) * 2008-01-17 2012-04-10 Bitzer Scroll Inc. Scroll compressor build assembly
US7972125B2 (en) 2008-05-30 2011-07-05 Emerson Climate Technologies, Inc. Compressor having output adjustment assembly including piston actuation
CN102076962B (zh) * 2008-05-30 2013-09-18 艾默生环境优化技术有限公司 一种具有容量调节系统的压缩机
KR101280915B1 (ko) * 2008-05-30 2013-07-02 에머슨 클리메이트 테크놀로지즈 인코퍼레이티드 용량조절 시스템을 가진 압축기
CN102384085B (zh) 2008-05-30 2014-11-12 艾默生环境优化技术有限公司 具有容量调节系统的压缩机
US8328531B2 (en) * 2009-01-22 2012-12-11 Danfoss Scroll Technologies, Llc Scroll compressor with three-step capacity control
US8308455B2 (en) 2009-01-27 2012-11-13 Emerson Climate Technologies, Inc. Unloader system and method for a compressor
US8616014B2 (en) * 2009-05-29 2013-12-31 Emerson Climate Technologies, Inc. Compressor having capacity modulation or fluid injection systems
MX2011012546A (es) 2009-05-29 2012-10-03 Emerson Retail Services Inc Sistema y metodo para monitorear y evaluar modificaciones de parametros operativos de equipo.
US8568118B2 (en) * 2009-05-29 2013-10-29 Emerson Climate Technologies, Inc. Compressor having piston assembly
CN103597292B (zh) 2011-02-28 2016-05-18 艾默生电气公司 用于建筑物的供暖、通风和空调hvac系统的监视系统和监视方法
US8964338B2 (en) 2012-01-11 2015-02-24 Emerson Climate Technologies, Inc. System and method for compressor motor protection
US9310439B2 (en) 2012-09-25 2016-04-12 Emerson Climate Technologies, Inc. Compressor having a control and diagnostic module
US9551504B2 (en) 2013-03-15 2017-01-24 Emerson Electric Co. HVAC system remote monitoring and diagnosis
US9803902B2 (en) 2013-03-15 2017-10-31 Emerson Climate Technologies, Inc. System for refrigerant charge verification using two condenser coil temperatures
AU2014229103B2 (en) 2013-03-15 2016-12-08 Emerson Electric Co. HVAC system remote monitoring and diagnosis
AU2014248049B2 (en) 2013-04-05 2018-06-07 Emerson Climate Technologies, Inc. Heat-pump system with refrigerant charge diagnostics
JP6484796B2 (ja) * 2014-04-24 2019-03-20 パナソニックＩｐマネジメント株式会社 スクロール圧縮機
WO2017210594A1 (en) * 2016-06-02 2017-12-07 Trane International Inc. A scroll compressor with partial load capacity
US11656003B2 (en) 2019-03-11 2023-05-23 Emerson Climate Technologies, Inc. Climate-control system having valve assembly

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2160582A1 (de) * 1971-12-07 1973-06-14 Leybold Heraeus Gmbh & Co Kg Verdraengerpumpe mit evolventenfoermigen vorspruengen
US3924977A (en) * 1973-06-11 1975-12-09 Little Inc A Positive fluid displacement apparatus
FR2281510A1 (fr) * 1974-08-05 1976-03-05 Zimmern Bernard Procede de regulation des compresseurs rotatifs doubles et dispositifs pour sa mise en oeuvre
JPS53141913A (en) * 1977-05-18 1978-12-11 Hitachi Ltd Scroll fluid device
JPS5428002A (en) * 1977-08-03 1979-03-02 Hitachi Ltd Control system for scrool fluid machine
US4141677A (en) * 1977-08-15 1979-02-27 Ingersoll-Rand Company Scroll-type two stage positive fluid-displacement apparatus with intercooler
US4332535A (en) * 1978-12-16 1982-06-01 Sankyo Electric Company Limited Scroll type compressor having an oil separator and oil sump in the suction chamber
JPS5716292A (en) * 1980-07-01 1982-01-27 Sanden Corp Scroll type compressor
US4383805A (en) * 1980-11-03 1983-05-17 The Trane Company Gas compressor of the scroll type having delayed suction closing capacity modulation

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3525933A1 (de) * 1985-07-19 1987-01-29 Bock Gmbh & Co Kaeltemaschinen Spiralverdichter
DE102016108555A1 (de) * 2016-05-10 2017-11-16 Technische Universität Dresden Scrollmaschine mit einstellbarem Volumenverhältnis
DE102016108555B4 (de) 2016-05-10 2019-04-25 Technische Universität Dresden Scrollmaschine mit einstellbarem Volumenverhältnis

Also Published As

Publication number Publication date
JPH0418150B2 (US07655688-20100202-C00548.png) 1992-03-26
GB8305971D0 (en) 1983-04-07
GB2116635A (en) 1983-09-28
JPS58190595A (ja) 1983-11-07
CA1233144A (en) 1988-02-23
GB2116635B (en) 1986-01-22
FR2522733B1 (fr) 1985-12-06
FR2522733A1 (fr) 1983-09-09
DE3308227A1 (de) 1983-09-08
US4431388A (en) 1984-02-14

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D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee