EP1630419A3 - Control valve for variable displacement compressor - Google Patents

Control valve for variable displacement compressor Download PDF

Info

Publication number
EP1630419A3
EP1630419A3 EP05018104A EP05018104A EP1630419A3 EP 1630419 A3 EP1630419 A3 EP 1630419A3 EP 05018104 A EP05018104 A EP 05018104A EP 05018104 A EP05018104 A EP 05018104A EP 1630419 A3 EP1630419 A3 EP 1630419A3
Authority
EP
European Patent Office
Prior art keywords
pressure
discharge
valve
variable displacement
valve element
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Withdrawn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
EP05018104A
Other languages
German (de)
French (fr)
Other versions
EP1630419A2 (en
Inventor
Hisatoshi Hirota
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.)
TGK Co Ltd
Original Assignee
TGK Co Ltd
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 TGK Co Ltd filed Critical TGK Co Ltd
Publication of EP1630419A2 publication Critical patent/EP1630419A2/en
Publication of EP1630419A3 publication Critical patent/EP1630419A3/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Withdrawn legal-status Critical Current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
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/06—Control using electricity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F04B27/14—Control
    • F04B27/16—Control of pumps with stationary cylinders
    • F04B27/18—Control of pumps with stationary cylinders by varying the relative positions of a swash plate and a cylinder block
    • F04B27/1804—Controlled by crankcase pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F04B27/14—Control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B1/00—Compression machines, plants or systems with non-reversible cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F04B27/14—Control
    • F04B27/16—Control of pumps with stationary cylinders
    • F04B27/18—Control of pumps with stationary cylinders by varying the relative positions of a swash plate and a cylinder block
    • F04B27/1804—Controlled by crankcase pressure
    • F04B2027/1809—Controlled pressure
    • F04B2027/1813—Crankcase pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F04B27/14—Control
    • F04B27/16—Control of pumps with stationary cylinders
    • F04B27/18—Control of pumps with stationary cylinders by varying the relative positions of a swash plate and a cylinder block
    • F04B27/1804—Controlled by crankcase pressure
    • F04B2027/1822—Valve-controlled fluid connection
    • F04B2027/1827—Valve-controlled fluid connection between crankcase and discharge chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F04B27/14—Control
    • F04B27/16—Control of pumps with stationary cylinders
    • F04B27/18—Control of pumps with stationary cylinders by varying the relative positions of a swash plate and a cylinder block
    • F04B27/1804—Controlled by crankcase pressure
    • F04B2027/184—Valve controlling parameter
    • F04B2027/1854—External parameters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F04B27/14—Control
    • F04B27/16—Control of pumps with stationary cylinders
    • F04B27/18—Control of pumps with stationary cylinders by varying the relative positions of a swash plate and a cylinder block
    • F04B27/1804—Controlled by crankcase pressure
    • F04B2027/184—Valve controlling parameter
    • F04B2027/1859—Suction pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Control Of Positive-Displacement Pumps (AREA)

Abstract

A valve section 13 of a control valve controls the flow rate between a discharge chamber and a crankcase, based on the differential pressure between discharge pressure Pd and suction pressure Ps. A pressure-sensing section 12 is provided in a high-pressure port 18. When a pressure-sensing piston 19 having a pressure-receiving area larger than a valve element 23 is exposed to a rapid discharge pressure change, the differential pressure generated between the discharge pressure Pd and a pressure in a pressure-adjusting chamber 20 acts on the valve element 23 opposite to the valve-opening/closing direction, to temporarily retard the motion of the valve element 23 which opens or closes by the differential pressure (Pd-Ps). Even a high-sensitivity variable displacement compressor promptly restores without hunting to a predetermined discharge capacity.
EP05018104A 2004-08-31 2005-08-19 Control valve for variable displacement compressor Withdrawn EP1630419A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2004251287 2004-08-31
JP2005021518A JP2006097673A (en) 2004-08-31 2005-01-28 Control valve for variable displacement compressor

Publications (2)

Publication Number Publication Date
EP1630419A2 EP1630419A2 (en) 2006-03-01
EP1630419A3 true EP1630419A3 (en) 2006-10-18

Family

ID=35457145

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05018104A Withdrawn EP1630419A3 (en) 2004-08-31 2005-08-19 Control valve for variable displacement compressor

Country Status (4)

Country Link
US (1) US20060045758A1 (en)
EP (1) EP1630419A3 (en)
JP (1) JP2006097673A (en)
KR (1) KR20060050781A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5053740B2 (en) * 2007-07-13 2012-10-17 サンデン株式会社 Volume control valve for variable capacity compressor
WO2009044781A1 (en) * 2007-10-02 2009-04-09 Sanden Corporation Variable displacement compressor
JP5424397B2 (en) * 2009-12-04 2014-02-26 サンデン株式会社 Control valve and swash plate type variable capacity compressor with control valve
EP2829685A1 (en) 2013-07-25 2015-01-28 Siemens Aktiengesellschaft Valve for a flow machine
JP6340501B2 (en) * 2014-06-19 2018-06-13 株式会社テージーケー Control valve for variable capacity compressor
JP2016014334A (en) * 2014-07-01 2016-01-28 株式会社テージーケー Variable displacement compressor control valve

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5071321A (en) * 1989-10-02 1991-12-10 General Motors Corporation Variable displacement refrigerant compressor passive destroker
EP1098091A2 (en) * 1999-11-05 2001-05-09 TGK Co., Ltd. Flow rate control for a compressor in a refrigeration cycle
EP1103721A2 (en) * 1999-11-25 2001-05-30 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Air conditioner and control valve in variable displacement compressor
EP1106831A2 (en) * 1999-12-09 2001-06-13 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Control valve in a variable capacity compressor
EP1431578A2 (en) * 2002-12-19 2004-06-23 Kabushiki Kaisha Toyota Jidoshokki Control system for a variable displacement compressor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5071321A (en) * 1989-10-02 1991-12-10 General Motors Corporation Variable displacement refrigerant compressor passive destroker
EP1098091A2 (en) * 1999-11-05 2001-05-09 TGK Co., Ltd. Flow rate control for a compressor in a refrigeration cycle
EP1103721A2 (en) * 1999-11-25 2001-05-30 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Air conditioner and control valve in variable displacement compressor
EP1106831A2 (en) * 1999-12-09 2001-06-13 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Control valve in a variable capacity compressor
EP1431578A2 (en) * 2002-12-19 2004-06-23 Kabushiki Kaisha Toyota Jidoshokki Control system for a variable displacement compressor

Also Published As

Publication number Publication date
JP2006097673A (en) 2006-04-13
US20060045758A1 (en) 2006-03-02
EP1630419A2 (en) 2006-03-01
KR20060050781A (en) 2006-05-19

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