EP1701040A2 - Doppel- Spiralverdichter mit einem anti-schub Ring - Google Patents

Doppel- Spiralverdichter mit einem anti-schub Ring Download PDF

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Publication number
EP1701040A2
EP1701040A2 EP05254846A EP05254846A EP1701040A2 EP 1701040 A2 EP1701040 A2 EP 1701040A2 EP 05254846 A EP05254846 A EP 05254846A EP 05254846 A EP05254846 A EP 05254846A EP 1701040 A2 EP1701040 A2 EP 1701040A2
Authority
EP
European Patent Office
Prior art keywords
scroll
machine according
members
relationship
bearing housing
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.)
Withdrawn
Application number
EP05254846A
Other languages
English (en)
French (fr)
Other versions
EP1701040A3 (de
Inventor
Gary J. Anderson
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.)
Copeland LP
Original Assignee
Emerson Climate Technologies Inc
Copeland Corp LLC
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 Emerson Climate Technologies Inc, Copeland Corp LLC filed Critical Emerson Climate Technologies Inc
Publication of EP1701040A2 publication Critical patent/EP1701040A2/de
Publication of EP1701040A3 publication Critical patent/EP1701040A3/de
Withdrawn legal-status Critical Current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
    • 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
    • F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
    • F04C27/005—Axial sealings for working fluid
    • 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
    • F04C29/0021—Systems for the equilibration of forces acting on the pump
    • F04C29/0035—Equalization of pressure pulses
    • 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
    • F04C2210/00—Fluid
    • F04C2210/26—Refrigerants with particular properties, e.g. HFC-134a
    • 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
    • F04C2230/00—Manufacture
    • F04C2230/60—Assembly methods
    • F04C2230/602—Gap; Clearance
    • 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
    • F04C2240/40—Electric motor
    • 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
    • F04C2240/50—Bearings
    • 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
    • Y10S415/00—Rotary kinetic fluid motors or pumps
    • 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

Definitions

  • the present invention relates to machines, such as scroll machines.
  • the invention also relates to plural compressors disposed within a single shell where two compressors, located at opposite ends of a motor, are both driven by the motor. More particularly, the present invention is directed to a system incorporated into both compressors that reduces objectionable noise generated during operation of the compressors.
  • Compressor systems have also been developed which, in place of a single compressor large enough to carry the maximum load demand, include a plurality of smaller motor compressors having a combined output equal to the required maximum load demand.
  • These multi-compressor systems include means for controlling the total system in such a manner as to selectively activate and deactivate each of the plurality of motor compressors independently when the load demand varies so that the compressor system output meets the required load demand.
  • These multi-compressor systems have good efficiency but they require complex piping and plumbing systems, including means for dealing with lubricating oil management in order to ensure that all of the lubricating oil remains equally distributed between each of the individual compressors.
  • Figure 3 is an enlarged sectional view of the piston assemblies shown in Figure 1;
  • Figure 9 is an end view of the fitting shown in Figure 8.
  • Figure 10 is a schematic diagram of a refrigerant system utilizing the capacity control system and the vapor injection system in accordance with the present invention
  • Shell assembly 12 comprises a central shell 18 and a pair of intermediate shells 20, with each intermediate shell 20 being located at opposite ends of central shell 18. Each intermediate shell 20 is bolted to central shell 18 as shown in Figure 1.
  • One intermediate shell 20 defines an electrical connection access 22 for providing electrical and diagnostic connection to the motor within shell assembly 12.
  • Central shell 18 is provided with a single suction inlet fitting 24 and a single discharge fitting 26.
  • a compressor mounting frame 40 is formed by end caps 16, partition plate assemblies 14 and shell assembly 12.
  • crank shaft 50 has an axially extending bore 62 extending from one end and an axially extending bore 64 extending from the opposite end.
  • Axial bore 62 is in communication with a radial bore to receive lubricating oil from oil pump 58 and provide the lubricating oil to one side of compression system 10.
  • Axial bore 64 is in communication with a radial bore to receive lubricating oil from oil pump 58 and provide the lubricating oil to the opposite side of compression system 10.
  • a radial vent hole is in communication with axial bore 64.
  • compression system 10 incorporates a unique capacity control system and a vapor injection system in accordance with the embodiment of the present invention.
  • Compression system 10 incorporates a capacity control system 212 and a vapor injection system 214 in each compressor of compression system 10.
  • Capacity control system 212 is the same for each compressor and includes a discharge fitting 216, a piston 218, a shell fitting 220, a solenoid valve 222, a control module 224, and a sensor array 226 having one or more appropriate sensors.
  • Discharge fitting 216 is threadingly received or otherwise secured within open recess 108, and as illustrated in Figure 3, discharge fitting 216 defines an internal cavity 228 and a plurality of discharge passages 230.
  • a discharge valve 232 is disposed below discharge fitting 216.
  • Orifice 244 is incorporated to control the flow of discharge gas between discharge pressure chambers 32 and pressure chamber 246.
  • pressure chamber 246 is connected to the suction side of the compressor, the pressure difference on opposite sides of piston 218 will be created.
  • a wave spring 260 is incorporated to maintain the sealing relationship between floating seal assembly 114 and partition plate assembly 14 during modulation of non-orbiting scroll member 100.
  • discharge valve 232 will move to its closed position thereby preventing the backflow of high pressurized fluid from discharge pressure chamber 32 or the downstream refrigeration system.
  • control module 224 will vary the frequency of operation for solenoid valve 222 and thus the relative time periods at which one set of scrolls 86 and 100 of compression system 10 is operated in a loaded and unloaded condition.
  • the varying of the frequency of operation of solenoid valve 222 can cause the operation of one set of scrolls 86 and 100 between fully loaded or 100% capacity and completely unloaded or 0% capacity or at any of an infinite number of settings in between in response to system demands. This has the effect of varying the capacity of compression system 10 between 0% and 100% since both compressors of compression system 10 include capacity control system 212.
  • the gaseous refrigerant further passes through piping 306 to be introduced into compression system 10 through vapor injection fitting 270.
  • the remaining liquid refrigerant further expands in expansion valve 300, is then vaporized in evaporator 302 and is again taken into compression system 10.
  • each set of scrolls 86 and 100 of compression system 10 allows the capacity of each set of scrolls 86 and 100 of compression system 10 to increase above the fixed capacity of each set of scrolls 86 and 100 of compression system 10.
  • the capacity of one of the compressors can be increased by approximately 20% to provide one set of the scrolls with 120% of its capacity which is 110% of the capacity of compression system 10. If both compressors are increased by approximately 20%, the capacity of compression system 10 will increase to 120% of its normal capacity.
  • a solenoid valve 308 is positioned within piping 306.
  • Central shell 318 defines discharge fitting 26 and conduit 36 which is separated from the main body of central shell 318.
  • central shell 318 defines an electrical connection access 326 for providing both power and diagnostics to the motor positioned within central shell 318.
  • One end cap 316 defines suction inlet fitting 24, thus eliminating the need for conduit 38.
  • the motor and compressors that are positioned within shell assembly 12 illustrated in Figure 2 are designed to be assembled into shell assembly 312.
  • the description of the motor and compressors detailed above for Figure 2 thus apply to shell assembly 312 also.
  • Each end cap 316 can be adapted to include capacity control system 212 in a manner similar to that illustrated in Figure 2.
  • shell fitting 220 can be integral with end cap 316, or it can be a separate component attached to end cap 316.
  • non-orbiting scroll member 100 is mounted for limited axial movement with respect to two-piece main bearing assembly 42.
  • the axial centerline for outwardly projecting flange portions 380 is positioned at the centroid of reaction for flange portions 380.
  • a biasing spring 396 Disposed around bushing 384 and between non-orbiting scroll member 100 and main bearing assembly 42 is a biasing spring 396.
  • the axial biasing force on each non-orbiting scroll member 100 due to the pressurized fluid in recesses 108 and 112 overcome the biasing of spring 396 and wraps 88 and 102 are urged into sealing engagement with the opposed end plate surfaces of end plates 104 and 90, respectively.
  • a gap is created between wraps 88 and 102 and the opposed end plate surfaces of end plates 104 and 90, respectively.
  • Flange portions 380 of non-orbiting scroll member 100 can float between washer 390 and main bearing assembly 42.
  • An anti-thrust ring 400 includes a plurality of flanges 402 for attaching a respective anti-thrust ring 400 to each two-piece main bearing assembly 42.
  • Anti-thrust ring 400 also includes an annular body 404 which is disposed adjacent end plate 90 of orbiting scroll member 86.
  • end plate 90 of orbiting scroll member 86 is sandwiched between annular body 404 of anti-thrust ring 400 and flat bearing surface 84 of two-piece main bearing assembly 42.
  • a slight clearance between these components is maintained to allow for the unrestricted orbital movement of orbiting scroll member 86.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Control Of Positive-Displacement Air Blowers (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP05254846A 2005-03-08 2005-08-03 Doppel- Spiralverdichter mit einem anti-schub Ring Withdrawn EP1701040A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/075,154 US20060204378A1 (en) 2005-03-08 2005-03-08 Dual horizontal scroll machine

Publications (2)

Publication Number Publication Date
EP1701040A2 true EP1701040A2 (de) 2006-09-13
EP1701040A3 EP1701040A3 (de) 2006-11-15

Family

ID=36576016

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05254846A Withdrawn EP1701040A3 (de) 2005-03-08 2005-08-03 Doppel- Spiralverdichter mit einem anti-schub Ring

Country Status (7)

Country Link
US (1) US20060204378A1 (de)
EP (1) EP1701040A3 (de)
KR (1) KR20060099379A (de)
CN (1) CN1831338A (de)
AU (1) AU2005203754A1 (de)
BR (1) BRPI0503794A (de)
TW (1) TW200632216A (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007132649A1 (ja) * 2006-05-17 2007-11-22 Panasonic Corporation 膨張機一体型圧縮機
WO2008087795A1 (ja) * 2007-01-15 2008-07-24 Panasonic Corporation 膨張機一体型圧縮機
CH697852B1 (fr) * 2007-10-17 2009-02-27 Eneftech Innovation Sa Dispositif à spirale de compression ou d'expansion.
WO2009066413A1 (ja) * 2007-11-21 2009-05-28 Panasonic Corporation 膨張機一体型圧縮機
CN101868597B (zh) * 2007-11-21 2012-05-30 松下电器产业株式会社 膨胀机一体型压缩机
US8323010B2 (en) * 2007-11-21 2012-12-04 Panasonic Corporation Expander-compressor unit
JP5681019B2 (ja) * 2011-03-31 2015-03-04 日立オートモティブシステムズ株式会社 スクロール式流体機械
JP5889142B2 (ja) * 2012-08-08 2016-03-22 三菱電機株式会社 スクロール圧縮機
US9732755B2 (en) * 2013-07-31 2017-08-15 Trane International Inc. Orbiting crankshaft drive pin and associated drive pin sleeve geometry
US9689391B2 (en) * 2013-11-27 2017-06-27 Emerson Climate Technologies, Inc. Compressor having sound isolation feature
CN106930946A (zh) * 2015-12-31 2017-07-07 华域三电汽车空调有限公司 压力装置的机体
WO2017158665A1 (ja) * 2016-03-16 2017-09-21 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
EP4031816A4 (de) * 2019-09-16 2024-01-31 Oxford Gas Compression Systems Inc. Kälteanlage mit niedrigem verdichtungsverhältnis und niederdruckverstärker
US11353022B2 (en) 2020-05-28 2022-06-07 Emerson Climate Technologies, Inc. Compressor having damped scroll
KR102639608B1 (ko) 2022-04-20 2024-02-26 엘지전자 주식회사 스크롤 압축기
KR20230173267A (ko) 2022-06-16 2023-12-27 엘지전자 주식회사 스크롤 압축기

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4877382A (en) 1986-08-22 1989-10-31 Copeland Corporation Scroll-type machine with axially compliant mounting
US5102316A (en) 1986-08-22 1992-04-07 Copeland Corporation Non-orbiting scroll mounting arrangements for a scroll machine
US5156539A (en) 1990-10-01 1992-10-20 Copeland Corporation Scroll machine with floating seal

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US4358254A (en) * 1978-09-01 1982-11-09 Tecumseh Products Company Variable capacity compressor
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JPH06330871A (ja) * 1993-05-20 1994-11-29 Zexel Corp スクロール型コンプレッサ
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Publication number Priority date Publication date Assignee Title
US4877382A (en) 1986-08-22 1989-10-31 Copeland Corporation Scroll-type machine with axially compliant mounting
US5102316A (en) 1986-08-22 1992-04-07 Copeland Corporation Non-orbiting scroll mounting arrangements for a scroll machine
US5156539A (en) 1990-10-01 1992-10-20 Copeland Corporation Scroll machine with floating seal

Also Published As

Publication number Publication date
BRPI0503794A (pt) 2006-10-31
AU2005203754A1 (en) 2006-09-28
US20060204378A1 (en) 2006-09-14
CN1831338A (zh) 2006-09-13
TW200632216A (en) 2006-09-16
KR20060099379A (ko) 2006-09-19
EP1701040A3 (de) 2006-11-15

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