IT1258456B - Perfezionamento nei compressori rotativi per gas refrigerante - Google Patents

Perfezionamento nei compressori rotativi per gas refrigerante

Info

Publication number
IT1258456B
IT1258456B ITRM920609A ITRM920609A IT1258456B IT 1258456 B IT1258456 B IT 1258456B IT RM920609 A ITRM920609 A IT RM920609A IT RM920609 A ITRM920609 A IT RM920609A IT 1258456 B IT1258456 B IT 1258456B
Authority
IT
Italy
Prior art keywords
compressor
continuous
compressors
discharged
unloading
Prior art date
Application number
ITRM920609A
Other languages
English (en)
Original Assignee
American Standard Inc
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 American Standard Inc filed Critical American Standard Inc
Publication of ITRM920609A0 publication Critical patent/ITRM920609A0/it
Publication of ITRM920609A1 publication Critical patent/ITRM920609A1/it
Application granted granted Critical
Publication of IT1258456B publication Critical patent/IT1258456B/it

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
    • 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
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/06—Several compression cycles arranged in parallel
    • 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
    • F25B2500/00—Problems to be solved
    • F25B2500/06—Damage
    • 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
    • F25B2600/00—Control issues
    • F25B2600/02—Compressor control
    • F25B2600/026—Compressor control by controlling unloaders

Landscapes

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

Abstract

Oggetto dell'invenzione è una disposizione di scaricamento per un compressore rotativo a vite la quale comprende un discreto e diverso apparecchio di scaricamento associato rispettivamente al rotore maschio e al rotore femmina. L'apparecchio di scaricamento associato al rotore maschio è un apparecchio di scaricamento continuo a pistone assiale disposto in modo mobile in un foro che è lontano ma si trova in comunicazione di flusso, attraverso una serie di aperture, con la camera di lavoro del compressore. L'apparecchio di scaricamento associato al rotore femmina è un apparecchio di scaricamento a passi il quale, quando aperto, scarica il compressore in una singola operazione di capacità relativamente grande. Il compressore, pertanto, è suscettibile di essere scaricato sia attraverso un intervallo di funzionamento continuo e sia con andamento discontinuo, passo per passo. Combinando in duplex i compressori di questo tipo, viene resa possibile una modulazione di capacità continua di un sistema a compressori multipli attraverso un esteso intervallo di funzionamento, senza l'impiego di compressori scaricati con meccanismi a valvole a cassetto.
ITRM920609A 1991-08-19 1992-08-18 Perfezionamento nei compressori rotativi per gas refrigerante IT1258456B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/747,894 US5211026A (en) 1991-08-19 1991-08-19 Combination lift piston/axial port unloader arrangement for a screw compresser

Publications (3)

Publication Number Publication Date
ITRM920609A0 ITRM920609A0 (it) 1992-08-18
ITRM920609A1 ITRM920609A1 (it) 1994-02-18
IT1258456B true IT1258456B (it) 1996-02-26

Family

ID=25007119

Family Applications (1)

Application Number Title Priority Date Filing Date
ITRM920609A IT1258456B (it) 1991-08-19 1992-08-18 Perfezionamento nei compressori rotativi per gas refrigerante

Country Status (12)

Country Link
US (1) US5211026A (it)
JP (1) JP3119946B2 (it)
KR (1) KR0167794B1 (it)
AU (1) AU2483492A (it)
BR (1) BR9205949A (it)
CA (1) CA2074444C (it)
DE (1) DE4227332C2 (it)
FR (1) FR2681106B1 (it)
GB (1) GB2258887B (it)
HK (1) HK45995A (it)
IT (1) IT1258456B (it)
WO (1) WO1993004286A1 (it)

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US5419146A (en) * 1994-04-28 1995-05-30 American Standard Inc. Evaporator water temperature control for a chiller system
US5509273A (en) * 1995-02-24 1996-04-23 American Standard Inc. Gas actuated slide valve in a screw compressor
US5632154A (en) * 1995-02-28 1997-05-27 American Standard Inc. Feed forward control of expansion valve
DE19519247C2 (de) * 1995-05-25 2000-08-31 Guenter Kirsten Schraubenverdichter
CN1112515C (zh) * 1996-03-27 2003-06-25 北越工业株式会社 螺旋流体机械的螺旋转子的轴结构
US5950443A (en) 1997-08-08 1999-09-14 American Standard Inc. Compressor minimum capacity control
US6206652B1 (en) 1998-08-25 2001-03-27 Copeland Corporation Compressor capacity modulation
DE19744466C2 (de) 1997-10-08 1999-08-19 Kt Kirsten Technologie Entwick Schraubenverdichter
US6135744A (en) * 1998-04-28 2000-10-24 American Standard Inc. Piston unloader arrangement for screw compressors
US6238188B1 (en) * 1998-08-17 2001-05-29 Carrier Corporation Compressor control at voltage and frequency extremes of power supply
US6520758B1 (en) 2001-10-24 2003-02-18 Ingersoll-Rand Company Screw compressor assembly and method including a rotor having a thrust piston
US6644045B1 (en) * 2002-06-25 2003-11-11 Carrier Corporation Oil free screw expander-compressor
US7682084B2 (en) * 2003-07-18 2010-03-23 Kobe Steel, Ltd. Bearing and screw compressor
EP1671067B1 (en) * 2003-10-08 2016-08-31 Emerson Climate Technologies, Inc. Distributed condensing units
US7677051B2 (en) * 2004-05-18 2010-03-16 Carrier Corporation Compressor lubrication
US7409833B2 (en) * 2005-03-10 2008-08-12 Sunpower, Inc. Dual mode compressor with automatic compression ratio adjustment for adapting to multiple operating conditions
US20090311119A1 (en) * 2006-07-27 2009-12-17 Carrier Corporation Screw Compressor Capacity Control
WO2008112554A1 (en) * 2007-03-09 2008-09-18 Johnson Controls Technology Company Refrigeration system
US8157538B2 (en) 2007-07-23 2012-04-17 Emerson Climate Technologies, Inc. Capacity modulation system for compressor and method
CN101251110B (zh) * 2008-01-08 2010-06-16 烟台冰轮股份有限公司 一种复叠式压缩机组的自动控制装置及其控制方法
EP2391826B1 (en) 2009-01-27 2017-03-15 Emerson Climate Technologies, Inc. Unloader system and method for a compressor
CN102193567B (zh) * 2010-03-10 2013-11-13 同方人工环境有限公司 一种无级调节水源螺杆机组的控制方法
CN102061944B (zh) * 2010-11-16 2012-11-28 上海维尔泰克螺杆机械有限公司 一种螺杆膨胀发电装置
US10378533B2 (en) 2011-12-06 2019-08-13 Bitzer Us, Inc. Control for compressor unloading system
JP5891192B2 (ja) * 2013-03-25 2016-03-22 株式会社神戸製鋼所 発電装置及び発電システム
EP3607256B1 (en) 2017-04-06 2021-11-03 Carrier Corporation A method for reducing the maximum inrush current of a compressor system comprising multiple asynchronous electrical motors and a compressor system for implementing this method
CN115875865B (zh) * 2023-01-10 2023-08-04 北京工业大学 一种可调节的单螺杆压缩机回热式复叠低温制冷系统

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US3088658A (en) * 1959-06-04 1963-05-07 Svenska Rotor Maskiner Ab Angularly adjustable slides for screw rotor machines
FR1258651A (fr) * 1960-06-01 1961-04-14 Svenska Rotor Maskiner Ab Dispositif de réglage pour machines à rotors en hélice
US3108740A (en) * 1960-06-17 1963-10-29 Svenska Rotor Maskiner Ab Regulating means for rotary piston compressors
US3088659A (en) * 1960-06-17 1963-05-07 Svenska Rotor Maskiner Ab Means for regulating helical rotary piston engines
US3513662A (en) * 1968-11-12 1970-05-26 Armour & Co Feedback control system for sequencing motors
GB1517156A (en) * 1974-06-21 1978-07-12 Svenska Rotor Maskiner Ab Screw compressor including means for varying the capacity thereof
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JPS54134806A (en) * 1978-04-12 1979-10-19 Hitachi Ltd Screw compressor capacity control mechanism
SU1064046A1 (ru) * 1979-02-02 1983-12-30 Ленинградский технологический институт холодильной промышленности Способ регулировани производительности винтовой машины
FR2459385A1 (fr) * 1979-06-19 1981-01-09 Zimmern Bernard Procede pour suralimenter et regler un compresseur a vis unique
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Also Published As

Publication number Publication date
GB2258887A (en) 1993-02-24
BR9205949A (pt) 1994-07-05
US5211026A (en) 1993-05-18
DE4227332A1 (de) 1993-02-25
DE4227332C2 (de) 1995-06-14
KR0167794B1 (en) 1999-01-15
FR2681106A1 (fr) 1993-03-12
ITRM920609A1 (it) 1994-02-18
CA2074444A1 (en) 1993-02-20
JP3119946B2 (ja) 2000-12-25
AU2483492A (en) 1993-03-16
WO1993004286A1 (en) 1993-03-04
GB9215403D0 (en) 1992-09-02
ITRM920609A0 (it) 1992-08-18
CA2074444C (en) 1994-06-14
FR2681106B1 (fr) 1994-10-07
JPH05215086A (ja) 1993-08-24
HK45995A (en) 1995-04-07
GB2258887B (en) 1994-12-21

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19960617