EP2025939A3 - Stepped scroll compressor with staged capacity modulation - Google Patents

Stepped scroll compressor with staged capacity modulation Download PDF

Info

Publication number
EP2025939A3
EP2025939A3 EP08252231A EP08252231A EP2025939A3 EP 2025939 A3 EP2025939 A3 EP 2025939A3 EP 08252231 A EP08252231 A EP 08252231A EP 08252231 A EP08252231 A EP 08252231A EP 2025939 A3 EP2025939 A3 EP 2025939A3
Authority
EP
European Patent Office
Prior art keywords
scroll compressor
capacity modulation
stepped
stepped scroll
staged
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Withdrawn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
EP08252231A
Other languages
German (de)
French (fr)
Other versions
EP2025939A2 (en
Inventor
Zili Sun
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.)
Danfoss Scroll Technologies LLC
Original Assignee
Scroll Technologies 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 Scroll Technologies LLC filed Critical Scroll Technologies LLC
Publication of EP2025939A2 publication Critical patent/EP2025939A2/en
Publication of EP2025939A3 publication Critical patent/EP2025939A3/en
Withdrawn legal-status Critical Current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
    • 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
    • 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
    • F04C18/0246—Details concerning the involute wraps or their base, e.g. geometry
    • F04C18/0269—Details concerning the involute wraps
    • F04C18/0276—Different wall heights
    • 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
    • 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
    • F04C18/0246—Details concerning the involute wraps or their base, e.g. geometry
    • F04C18/0253—Details concerning the base
    • F04C18/0261—Details of the ports, e.g. location, number, geometry
    • 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
    • F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C18/14—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • F04C18/16—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
    • 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
    • F04C28/10—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber
    • 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
    • F04C28/26—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 using bypass channels
    • 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
    • F04C2270/00—Control; Monitoring or safety arrangements
    • F04C2270/58—Valve parameters

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Rotary Pumps (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

A scroll compressor has a stepped wrap such that there is a greater height outer portion (38;40) and a lesser height more central portion (42;44). Bypass ports (36) are associated with the transition zone between the higher and lesser height portions. By providing the bypass port in a stepped scroll compressor, greater reductions in capacity can be achieved than have been provided in the prior art.
EP08252231A 2007-08-03 2008-06-28 Stepped scroll compressor with staged capacity modulation Withdrawn EP2025939A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/833,342 US20090035167A1 (en) 2007-08-03 2007-08-03 Stepped scroll compressor with staged capacity modulation

Publications (2)

Publication Number Publication Date
EP2025939A2 EP2025939A2 (en) 2009-02-18
EP2025939A3 true EP2025939A3 (en) 2010-08-11

Family

ID=40011324

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08252231A Withdrawn EP2025939A3 (en) 2007-08-03 2008-06-28 Stepped scroll compressor with staged capacity modulation

Country Status (5)

Country Link
US (1) US20090035167A1 (en)
EP (1) EP2025939A3 (en)
JP (1) JP2009041564A (en)
KR (1) KR20090014091A (en)
CN (1) CN101358592A (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7988433B2 (en) 2009-04-07 2011-08-02 Emerson Climate Technologies, Inc. Compressor having capacity modulation assembly
US8297958B2 (en) * 2009-09-11 2012-10-30 Bitzer Scroll, Inc. Optimized discharge port for scroll compressor with tip seals
US8308448B2 (en) * 2009-12-08 2012-11-13 Danfoss Scroll Technologies Llc Scroll compressor capacity modulation with hybrid solenoid and fluid control
US9249802B2 (en) 2012-11-15 2016-02-02 Emerson Climate Technologies, Inc. Compressor
US9651043B2 (en) 2012-11-15 2017-05-16 Emerson Climate Technologies, Inc. Compressor valve system and assembly
US9435340B2 (en) * 2012-11-30 2016-09-06 Emerson Climate Technologies, Inc. Scroll compressor with variable volume ratio port in orbiting scroll
US20140219844A1 (en) * 2013-02-06 2014-08-07 Daimler Ag Expansion device for use in a working medium circuit and method for operating an expansion device
US9989057B2 (en) 2014-06-03 2018-06-05 Emerson Climate Technologies, Inc. Variable volume ratio scroll compressor
US9790940B2 (en) * 2015-03-19 2017-10-17 Emerson Climate Technologies, Inc. Variable volume ratio compressor
US10378540B2 (en) 2015-07-01 2019-08-13 Emerson Climate Technologies, Inc. Compressor with thermally-responsive modulation system
CN207377799U (en) 2015-10-29 2018-05-18 艾默生环境优化技术有限公司 Compressor
US10890186B2 (en) 2016-09-08 2021-01-12 Emerson Climate Technologies, Inc. Compressor
US10801495B2 (en) 2016-09-08 2020-10-13 Emerson Climate Technologies, Inc. Oil flow through the bearings of a scroll compressor
US10753352B2 (en) 2017-02-07 2020-08-25 Emerson Climate Technologies, Inc. Compressor discharge valve assembly
US11022119B2 (en) 2017-10-03 2021-06-01 Emerson Climate Technologies, Inc. Variable volume ratio compressor
US10962008B2 (en) 2017-12-15 2021-03-30 Emerson Climate Technologies, Inc. Variable volume ratio compressor
US10995753B2 (en) 2018-05-17 2021-05-04 Emerson Climate Technologies, Inc. Compressor having capacity modulation assembly
CN109854509B (en) * 2019-03-19 2024-04-26 福建雪人股份有限公司 Automatic regulating device for built-in volume ratio of air compressor for fuel cell
US11655813B2 (en) 2021-07-29 2023-05-23 Emerson Climate Technologies, Inc. Compressor modulation system with multi-way valve
US11846287B1 (en) 2022-08-11 2023-12-19 Copeland Lp Scroll compressor with center hub
US11965507B1 (en) 2022-12-15 2024-04-23 Copeland Lp Compressor and valve assembly

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5830494A (en) * 1981-08-18 1983-02-22 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
JPH0571477A (en) * 1991-09-13 1993-03-23 Toshiba Corp Scroll compressor
DE19517748A1 (en) * 1994-05-16 1995-11-23 Toyoda Automatic Loom Works In air jet loom pressure transients are minimised without bulky appts.
EP1004773A1 (en) * 1998-06-12 2000-05-31 Daikin Industries, Limited Multi-stage capacity control scroll compressor
US6413058B1 (en) * 2000-11-21 2002-07-02 Scroll Technologies Variable capacity modulation for scroll compressor
EP1507085A1 (en) * 2003-08-11 2005-02-16 Mitsubishi Heavy Industries, Ltd. Scroll compressor
US20060140804A1 (en) * 2004-12-23 2006-06-29 Lg Electronics Inc. Apparatus for varying capacity in scroll compressor
US20060177332A1 (en) * 2005-02-04 2006-08-10 Lg Electronics Inc. Step-type capacity varying apparatus of scroll compressor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5607288A (en) * 1993-11-29 1997-03-04 Copeland Corporation Scroll machine with reverse rotation protection
JP3376729B2 (en) * 1994-06-08 2003-02-10 株式会社日本自動車部品総合研究所 Scroll compressor
US5551846A (en) * 1995-12-01 1996-09-03 Ford Motor Company Scroll compressor capacity control valve
WO2001098662A1 (en) * 2000-06-22 2001-12-27 Mitsubishi Heavy Industries, Ltd. Scroll compressor

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4383805A (en) * 1980-11-03 1983-05-17 The Trane Company Gas compressor of the scroll type having delayed suction closing capacity modulation
JPS5830494A (en) * 1981-08-18 1983-02-22 Sanden Corp Scroll type compressor
JPH0571477A (en) * 1991-09-13 1993-03-23 Toshiba Corp Scroll compressor
DE19517748A1 (en) * 1994-05-16 1995-11-23 Toyoda Automatic Loom Works In air jet loom pressure transients are minimised without bulky appts.
EP1004773A1 (en) * 1998-06-12 2000-05-31 Daikin Industries, Limited Multi-stage capacity control scroll compressor
US6413058B1 (en) * 2000-11-21 2002-07-02 Scroll Technologies Variable capacity modulation for scroll compressor
EP1507085A1 (en) * 2003-08-11 2005-02-16 Mitsubishi Heavy Industries, Ltd. Scroll compressor
US20060140804A1 (en) * 2004-12-23 2006-06-29 Lg Electronics Inc. Apparatus for varying capacity in scroll compressor
US20060177332A1 (en) * 2005-02-04 2006-08-10 Lg Electronics Inc. Step-type capacity varying apparatus of scroll compressor

Also Published As

Publication number Publication date
KR20090014091A (en) 2009-02-06
US20090035167A1 (en) 2009-02-05
JP2009041564A (en) 2009-02-26
EP2025939A2 (en) 2009-02-18
CN101358592A (en) 2009-02-04

Similar Documents

Publication Publication Date Title
EP2025939A3 (en) Stepped scroll compressor with staged capacity modulation
WO2008142825A1 (en) Scroll compressor
USD686430S1 (en) Shelf
WO2010118140A3 (en) Compressor having capacity modulation assembly
WO2009155094A3 (en) Compressor having capacity modulation system
WO2012041943A3 (en) Bar of a squirrel-cage rotor
EP1498610A3 (en) Capacity modulated scroll compressor
EP2289329A3 (en) Microbicidal composition
EP2409920A3 (en) Centrifugal compressor cooling path arrangement
WO2011151554A3 (en) Scroll refrigeration compressor
WO2010138821A3 (en) Compressor having capacity modulation or fluid injection systems
EP3327100A3 (en) Phosphorescent materials
EP1751430A4 (en) Fixed and variable compressor system capacity control
GB0700129D0 (en) A pipeline termination skid, a conection arrangement comprising such a pipeline termination skid and a pipeline termination
EP1866578A4 (en) Refrigerant system with variable speed compressor and reheat function
CA124271S (en) Dolly
EP2060742A3 (en) Dual Configuration seal assembly for a rotational assembly
AU2002309573A1 (en) Compressor with a capacity modulation system utilizing a re-expansion chamber
GB0502025D0 (en) Gravel pack crossover tool with check valve in the evacuation port
EP2053201A3 (en) Hydrostatic seal assembly and the corresponding compressor assembly and gas turbine engine
EP1967735A4 (en) Single stage roots vacuum pump and vacuum fluid transport system employing that single stage roots vacuum pump
USD596316S1 (en) Framework
EP2107249A3 (en) Compressor scrolls for auxiliary power units
WO2006007072A3 (en) Gaseous fluid compressor control system
AU2013257469A1 (en) Axial flow pump with multi-grooved rotor

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20080711

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK RS

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK RS

RIC1 Information provided on ipc code assigned before grant

Ipc: F04C 28/10 20060101ALI20100707BHEP

Ipc: F04C 28/26 20060101ALI20100707BHEP

Ipc: F04C 18/02 20060101AFI20081128BHEP

AKX Designation fees paid

Designated state(s): BE DE ES FR GB IT

17Q First examination report despatched

Effective date: 20130320

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20160105