EP1081384A3 - Scroll compressor with a discharge valve - Google Patents

Scroll compressor with a discharge valve Download PDF

Info

Publication number
EP1081384A3
EP1081384A3 EP00119198A EP00119198A EP1081384A3 EP 1081384 A3 EP1081384 A3 EP 1081384A3 EP 00119198 A EP00119198 A EP 00119198A EP 00119198 A EP00119198 A EP 00119198A EP 1081384 A3 EP1081384 A3 EP 1081384A3
Authority
EP
European Patent Office
Prior art keywords
movable
pocket
volume
scroll
discharge port
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Withdrawn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
EP00119198A
Other languages
German (de)
French (fr)
Other versions
EP1081384A2 (en
Inventor
Toshiro Fujii
Yasushi Watanabe
Kazuhiro Kuroki
Hiroyuki Gennami
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.)
Toyota Industries Corp
Original Assignee
Toyota Industries Corp
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 Toyota Industries Corp filed Critical Toyota Industries Corp
Publication of EP1081384A2 publication Critical patent/EP1081384A2/en
Publication of EP1081384A3 publication Critical patent/EP1081384A3/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Withdrawn legal-status Critical Current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
    • 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
    • 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

Landscapes

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

Abstract

A scroll-type compressor is disclosed. The compressor has a fixed scroll (11) and a movable scroll (20). Two scrolls (11, 20) respectively have volute portions (32,34) cooperate to form a variable volume gas pocket. The movable scroll (20) moves along a predetermined orbital path to vary the volume of the pocket. A movable base plate (33) has a discharge port (25) that discharges the gas from the pocket when the volume of the pocket is less than a predetermined volume. A valve unit (26, 29, 30) connects and disconnects the discharge port (25) with the gas passage. The valve has a movable valve body (39) movable between two positions open and close the discharge port (25).
EP00119198A 1999-09-06 2000-09-05 Scroll compressor with a discharge valve Withdrawn EP1081384A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP25154099 1999-09-06
JP25154099A JP2001073972A (en) 1999-09-06 1999-09-06 Discharge structure of scroll compressor

Publications (2)

Publication Number Publication Date
EP1081384A2 EP1081384A2 (en) 2001-03-07
EP1081384A3 true EP1081384A3 (en) 2002-02-06

Family

ID=17224350

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00119198A Withdrawn EP1081384A3 (en) 1999-09-06 2000-09-05 Scroll compressor with a discharge valve

Country Status (2)

Country Link
EP (1) EP1081384A3 (en)
JP (1) JP2001073972A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100378336C (en) * 2003-06-23 2008-04-02 乐金电子(天津)电器有限公司 Overcompression prevention device for tubine compressor
CN100387847C (en) * 2003-12-12 2008-05-14 乐金电子(天津)电器有限公司 Device for preventing counter flow of gas in vortex type compressor
WO2020151364A1 (en) * 2019-01-24 2020-07-30 艾默生环境优化技术(苏州)有限公司 Valve assembly and compressor

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02227583A (en) * 1989-02-28 1990-09-10 Toshiba Corp Scroll compressor
JPH0493781U (en) * 1990-12-27 1992-08-14
JPH05157067A (en) * 1991-12-05 1993-06-22 Daikin Ind Ltd Valve device
JPH05296164A (en) * 1991-01-08 1993-11-09 Mitsubishi Electric Corp Scroll fluid machine
JPH06264875A (en) * 1993-03-10 1994-09-20 Toyota Autom Loom Works Ltd Scroll compressor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02227583A (en) * 1989-02-28 1990-09-10 Toshiba Corp Scroll compressor
JPH0493781U (en) * 1990-12-27 1992-08-14
JPH05296164A (en) * 1991-01-08 1993-11-09 Mitsubishi Electric Corp Scroll fluid machine
JPH05157067A (en) * 1991-12-05 1993-06-22 Daikin Ind Ltd Valve device
JPH06264875A (en) * 1993-03-10 1994-09-20 Toyota Autom Loom Works Ltd Scroll compressor

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 014, no. 540 (M - 1053) 29 November 1990 (1990-11-29) *
PATENT ABSTRACTS OF JAPAN vol. 017, no. 558 (M - 1493) 7 October 1993 (1993-10-07) *
PATENT ABSTRACTS OF JAPAN vol. 018, no. 090 (M - 1560) 15 February 1994 (1994-02-15) *

Also Published As

Publication number Publication date
EP1081384A2 (en) 2001-03-07
JP2001073972A (en) 2001-03-21

Similar Documents

Publication Publication Date Title
EP0969209A3 (en) Scroll-type variable-capacity compressor
EP1544467A3 (en) Scroll compressor
EP1087142A3 (en) Scroll compressor capacity control
EP1500818A3 (en) Powder metal scroll for a scroll compressor
GB2385892A (en) Two stage scroll vacuum pump with improved pressure ration and performance
EP1172562A3 (en) Scroll compressor
EP1079111A3 (en) Scroll temperature protection
EP0464282A3 (en) Scroll compressor discharge valve
CA2282031A1 (en) Scroll type compressor in which a soft starting mechanism is improved with a simple structure
CA2147644A1 (en) Scroll Apparatus with Reduced Inlet Pressure Drop
GB2338749B (en) Reed discharge valve for scroll compressors
EP1039136A3 (en) Scroll machine with discharge valve
EP1369590A3 (en) Two-stage rotary type compressor
EP1199474A3 (en) Scroll compressor
MY120705A (en) Scroll compressor having a valved back-pressure chamber and a bypass for over-compression
CA2080877A1 (en) Pressure ratio responsive unloader
WO2002061280A1 (en) Variable displacement type swash plate clutch-less compressor
EP1371851A3 (en) Scroll type compressor
EP1270947A3 (en) Scroll compressors
EP1227244A3 (en) Scroll type compressor
CA2224747A1 (en) Combination valve for screw compressors
EP1279835A3 (en) Scroll compressor
EP1081384A3 (en) Scroll compressor with a discharge valve
CA2299843A1 (en) Scroll type compressor
EP0754860A3 (en) Oil-free scroll vacuum pump

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: 20000905

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR IT

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

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 CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17Q First examination report despatched

Effective date: 20020621

AKX Designation fees paid

Free format text: DE FR IT

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: 20021105