EP1072796A3 - Screw-type compressor - Google Patents

Screw-type compressor Download PDF

Info

Publication number
EP1072796A3
EP1072796A3 EP00115787A EP00115787A EP1072796A3 EP 1072796 A3 EP1072796 A3 EP 1072796A3 EP 00115787 A EP00115787 A EP 00115787A EP 00115787 A EP00115787 A EP 00115787A EP 1072796 A3 EP1072796 A3 EP 1072796A3
Authority
EP
European Patent Office
Prior art keywords
activates
screw
backflow orifice
type compressor
range
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.)
Granted
Application number
EP00115787A
Other languages
German (de)
French (fr)
Other versions
EP1072796A2 (en
EP1072796B1 (en
Inventor
Karl-Joachim Krusche
Klaus Hossner
Wolfgang SANDKÖTTER
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.)
Bitzer Kuehlmaschinenbau GmbH and Co KG
Original Assignee
Bitzer Kuehlmaschinenbau GmbH and Co KG
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 Bitzer Kuehlmaschinenbau GmbH and Co KG filed Critical Bitzer Kuehlmaschinenbau GmbH and Co KG
Publication of EP1072796A2 publication Critical patent/EP1072796A2/en
Publication of EP1072796A3 publication Critical patent/EP1072796A3/en
Application granted granted Critical
Publication of EP1072796B1 publication Critical patent/EP1072796B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F04C28/10—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
    • F04C28/12—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 using sliding valves
    • F04C28/125—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 using sliding valves with sliding valves controlled by the use of fluid other than the working fluid

Landscapes

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

Abstract

The cylinder chamber(44) of the compressor has a backflow orifice(58) and at least one intermediate backflow orifice(74,76) establishing a minimum position(Mi) and intermediate position(Z1,Z2) respectively. The control unit(66) in the mode for stepless control of the piston positions in a range between the intermediate position and minimum position activates the backflow orifice, and for stepless control of the piston positions outside the range between the intermediate position and minimum position activates the intermediate backflow orifice. An Independent claim is included for a control unit which activates feed flow in an established cycle.
EP00115787A 1999-07-26 2000-07-21 Process for operating a screw-type compressor Expired - Lifetime EP1072796B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19935041A DE19935041A1 (en) 1999-07-26 1999-07-26 Screw compressor
DE19935041 1999-07-26

Publications (3)

Publication Number Publication Date
EP1072796A2 EP1072796A2 (en) 2001-01-31
EP1072796A3 true EP1072796A3 (en) 2002-07-10
EP1072796B1 EP1072796B1 (en) 2004-10-13

Family

ID=7916096

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00115787A Expired - Lifetime EP1072796B1 (en) 1999-07-26 2000-07-21 Process for operating a screw-type compressor

Country Status (4)

Country Link
US (1) US6276911B1 (en)
EP (1) EP1072796B1 (en)
AT (1) ATE279652T1 (en)
DE (2) DE19935041A1 (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100491602B1 (en) * 2002-05-11 2005-05-27 삼성광주전자 주식회사 Dual cylinder apparatus for Hermetic compressor
DE10242139A1 (en) 2002-09-03 2004-03-18 Bitzer Kühlmaschinenbau Gmbh screw compressors
DE10258145A1 (en) * 2002-12-03 2004-06-24 Bitzer Kühlmaschinenbau Gmbh screw compressors
EP1567770B1 (en) 2002-12-03 2017-01-18 BITZER Kühlmaschinenbau GmbH Screw compressor
ITVI20040034A1 (en) 2004-03-03 2004-06-03 Refcomp Spa SCREW VOLUMETRIC COMPRESSOR WITH FLOW RATE ADJUSTMENT DEVICE
US20060165543A1 (en) * 2005-01-24 2006-07-27 York International Corporation Screw compressor acoustic resonance reduction
ITVI20050272A1 (en) 2005-10-14 2007-04-15 Refcomp Spa VOLUMETRIC COMPRESSOR WITH PERFECT SCREW
BRPI0621740A2 (en) * 2006-06-02 2016-09-13 Carrier Corp compressor apparatus and method for re-fabricating a compressor or reengineering a compressor configuration
TW200829849A (en) * 2007-01-11 2008-07-16 Si-Fu Shen Multi-purpose coolant-recycling machine
JP5358608B2 (en) 2011-03-30 2013-12-04 日立アプライアンス株式会社 Screw compressor and chiller unit using the same
DE102011051730A1 (en) * 2011-07-11 2013-01-17 Bitzer Kühlmaschinenbau Gmbh screw compressors
JP6385708B2 (en) * 2014-04-18 2018-09-05 日立ジョンソンコントロールズ空調株式会社 Screw compressor
CN204099200U (en) * 2014-09-23 2015-01-14 江森自控空调冷冻设备(无锡)有限公司 The helical-lobe compressor of adjustable interior volume specific ratio
RU2733501C1 (en) * 2017-09-04 2020-10-02 Битцер Кюльмашиненбау Гмбх Screw compressor
CN110966195B (en) * 2019-12-05 2024-04-19 珠海格力电器股份有限公司 System and method for accurately controlling automatic loading stability of screw compressor and air conditioner
CN111794969A (en) * 2020-04-24 2020-10-20 青岛海尔空调电子有限公司 Unloading control method of screw compressor
CN113550902B (en) * 2020-04-24 2023-03-31 青岛海尔空调电子有限公司 Unloading control method of screw compressor
DE102020115442A1 (en) 2020-06-10 2021-12-16 Bitzer Kühlmaschinenbau Gmbh Screw expander and system for generating electrical energy from heat with a screw expander

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD153169A1 (en) * 1980-09-30 1981-12-23 Klaus Dietrich DYNAMICALLY ADJUSTED CONTROL OF PLANTS WITH INTEGRAL ACTUATOR, PREFERABLY SCREW COMPRESSORS
US4412788A (en) * 1981-04-20 1983-11-01 Durham-Bush, Inc. Control system for screw compressor
JPS5949392A (en) * 1982-09-11 1984-03-21 Mayekawa Mfg Co Ltd Discharge port opening change and volume control device of screw-type compressor
US4678406A (en) * 1986-04-25 1987-07-07 Frick Company Variable volume ratio screw compressor with step control
US4727725A (en) * 1985-05-20 1988-03-01 Hitachi, Ltd. Gas injection system for screw compressor
DD298536A5 (en) * 1990-10-02 1992-02-27 Kuehlautomat Berlin Gmbh,De VI CHANGE DEVICE FOR SCREW COMPRESSORS WITH COMBINED VI AND PART LOAD ADJUSTMENT
JPH06173872A (en) * 1992-12-03 1994-06-21 Hitachi Ltd Screw compressor

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE153169C (en)
DE298536C (en)
FR1566954A (en) * 1968-05-22 1969-05-09
JPS5757A (en) * 1980-05-28 1982-01-05 Hitachi Ltd Synchronous motor with permanent magnet
JPS5959A (en) * 1982-06-22 1984-01-05 神農　大海 Gypsum bandage
JPH022A (en) * 1984-06-20 1990-01-05 Tomio Konno Method and apparatus for electronic communication with vacuum fiber
JPS6262A (en) * 1986-03-05 1987-01-06 Ishihara Sangyo Kaisha Ltd Production of benzoylurea compound
JPH033A (en) * 1989-05-26 1991-01-07 Kimie Mitsunaga Shoe having recessed sole
JP2503718B2 (en) * 1990-04-13 1996-06-05 ダイキン工業株式会社 Control device
JPH055A (en) * 1991-06-24 1993-01-08 Kanzaki Paper Mfg Co Ltd Production of seeding sheet

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD153169A1 (en) * 1980-09-30 1981-12-23 Klaus Dietrich DYNAMICALLY ADJUSTED CONTROL OF PLANTS WITH INTEGRAL ACTUATOR, PREFERABLY SCREW COMPRESSORS
US4412788A (en) * 1981-04-20 1983-11-01 Durham-Bush, Inc. Control system for screw compressor
JPS5949392A (en) * 1982-09-11 1984-03-21 Mayekawa Mfg Co Ltd Discharge port opening change and volume control device of screw-type compressor
US4727725A (en) * 1985-05-20 1988-03-01 Hitachi, Ltd. Gas injection system for screw compressor
US4678406A (en) * 1986-04-25 1987-07-07 Frick Company Variable volume ratio screw compressor with step control
DD298536A5 (en) * 1990-10-02 1992-02-27 Kuehlautomat Berlin Gmbh,De VI CHANGE DEVICE FOR SCREW COMPRESSORS WITH COMBINED VI AND PART LOAD ADJUSTMENT
JPH06173872A (en) * 1992-12-03 1994-06-21 Hitachi Ltd Screw compressor

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 008, no. 154 (M - 310) 18 July 1984 (1984-07-18) *
PATENT ABSTRACTS OF JAPAN vol. 018, no. 512 (M - 1679) 27 September 1994 (1994-09-27) *

Also Published As

Publication number Publication date
EP1072796A2 (en) 2001-01-31
ATE279652T1 (en) 2004-10-15
US6276911B1 (en) 2001-08-21
DE19935041A1 (en) 2001-02-08
EP1072796B1 (en) 2004-10-13
DE50008197D1 (en) 2004-11-18

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