GB1186120A - Refrigeration Apparatus Control. - Google Patents

Refrigeration Apparatus Control.

Info

Publication number
GB1186120A
GB1186120A GB58292/68A GB5829268A GB1186120A GB 1186120 A GB1186120 A GB 1186120A GB 58292/68 A GB58292/68 A GB 58292/68A GB 5829268 A GB5829268 A GB 5829268A GB 1186120 A GB1186120 A GB 1186120A
Authority
GB
United Kingdom
Prior art keywords
condenser
pressure
refrigerant
compressor
supply
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.)
Expired
Application number
GB58292/68A
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.)
Trane Co
Original Assignee
Trane Co
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 Trane Co filed Critical Trane Co
Publication of GB1186120A publication Critical patent/GB1186120A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/275—Control of temperature characterised by the use of electric means with sensing element expanding, contracting, or fusing in response to changes of temperature
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/1927—Control of temperature characterised by the use of electric means using a plurality of sensors
    • 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
    • F25B2600/11—Fan speed control
    • F25B2600/111—Fan speed control of condenser fans

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

1,186,120. Automatic control of refrigeration. TRANE CO. Dec.9, 1968 [Dec.18, 1967], No.58292/68. Heading G3R. Fluid-pressure in the refrigerant condenser of a refrigerator is maintained uniform by an electrical resistive transducer, responsive to the fluidpressure, which controls a gated semi-conductor switch in the supply to an electric motor driving a condenser cooling fan. As shown, when the temperature inside a refrigerator 12 falls below a predetermined value a bellows 36 closes the electrical supply circuit to a motor driven compressor 14 which circulates refrigerant through an evaporator 20 and a condenser 16. A bellows 48, responsive to refrigerant pressure on the outlet side of the compressor, compresses and thereby varies the value of a crystal or semiconductor resistor 50 in series with a condenser 42 so that the period during each cycle that the condenser voltage exceeds a value sufficient to render a controlled semi-conductor 40 conductive is dependent on the fluid-pressure. Since semiconductor 40 is in series with the supply to a fan motor 32 the speed of the latter, and hence the cooling of condenser 16, is adjusted to counteract changes of refrigerant pressure. If, however, the pressure does become excessive, a pressureoperated switch 38 opens to stop compressor 14.
GB58292/68A 1967-12-18 1968-12-09 Refrigeration Apparatus Control. Expired GB1186120A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US69143967A 1967-12-18 1967-12-18

Publications (1)

Publication Number Publication Date
GB1186120A true GB1186120A (en) 1970-04-02

Family

ID=24776539

Family Applications (1)

Application Number Title Priority Date Filing Date
GB58292/68A Expired GB1186120A (en) 1967-12-18 1968-12-09 Refrigeration Apparatus Control.

Country Status (2)

Country Link
US (1) US3633376A (en)
GB (1) GB1186120A (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3739596A (en) * 1971-11-10 1973-06-19 Gen Electric Refrigeration system including head pressure control means
US3783630A (en) * 1971-11-24 1974-01-08 Cdrh Ltd Method and apparatus for cooling liquids
US4205944A (en) * 1973-08-16 1980-06-03 Suddeutsche Kuhlerfabrick Julius Fr. Behr Electronic control circuit for blowers in vehicles
US3958429A (en) * 1975-01-17 1976-05-25 Dravo Corporation Air-cooled condenser pressure control at low ambient temperatures
US4003729A (en) * 1975-11-17 1977-01-18 Carrier Corporation Air conditioning system having improved dehumidification capabilities
US4075865A (en) * 1975-12-05 1978-02-28 Borg-Warner Corporation Apparatus for controlling condenser pressure in a refrigeration system
US4288991A (en) * 1976-03-30 1981-09-15 Weeks Harold R Refrigeration and heating improvement
US5056325A (en) * 1986-12-04 1991-10-15 The Cornelius Company Ice cube maker with new freeze and harvest control
JP2557254B2 (en) * 1988-05-16 1996-11-27 本田技研工業株式会社 Cooling fan controller
ES2092424B1 (en) * 1992-09-16 1997-07-01 Ornaque Carlos Gutierrez MIXED BLOCK REFRIGERATION SECURITY SYSTEM.
US5355693A (en) * 1993-04-12 1994-10-18 The Dometic Corporation Power ventilator for a refrigerator in a vehicle
US5761918A (en) * 1995-05-01 1998-06-09 Index Sensors And Controls, Inc. Integrated controller for commercial vehicle air conditioning system
US20040187514A1 (en) * 2003-03-27 2004-09-30 Doug Franck Refrigeration system and method for beverage dispenser
US7337624B2 (en) * 2003-03-27 2008-03-04 The Coca-Cola Company Refrigeration system and method for beverage dispenser
ITUD20040171A1 (en) * 2004-08-31 2004-11-30 O M I Ind Ali Srl REFRIGERATION SYSTEM FOR A FLUID WITH CONTROL OF VARIABLES
JP2006213345A (en) * 2005-02-02 2006-08-17 Sanyo Electric Co Ltd Beverage feeding apparatus
DE102006061413B4 (en) * 2006-01-12 2012-04-05 Secop Gmbh Method and control unit for starting a compressor
US20110259041A1 (en) * 2010-04-21 2011-10-27 Whirlpool Corporation High efficiency condenser
SG11201501310RA (en) 2012-08-24 2015-04-29 Carrier Corp Transcritical refrigerant vapor compression system high side pressure control

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2705404A (en) * 1952-05-08 1955-04-05 Gen Electric Cooling arrangement for condenser of refrigerating system
US2939317A (en) * 1955-10-31 1960-06-07 Bell Telephone Labor Inc Variable resistance semiconductive devices
US2952991A (en) * 1959-02-20 1960-09-20 Carrier Corp High side pressure control for refrigeration systems
US3160844A (en) * 1962-03-22 1964-12-08 Electro Optical Systems Inc High output electrical strain transducers
US3270562A (en) * 1964-01-07 1966-09-06 Gen Electric Solid state hydrostatic pressure gauge
US3196629A (en) * 1964-06-01 1965-07-27 Carrier Corp Refrigeration head pressure control systems
US3329023A (en) * 1964-08-03 1967-07-04 Schaevitz Bytrex Inc Semiconductor strain gage transducers
US3403314A (en) * 1965-10-22 1968-09-24 Smith Corp A O Condition responsive motor control having unijunction firing circuit for a triggeredswitch
US3417361A (en) * 1966-03-07 1968-12-17 Conrac Corp Semiconductive pressure transducer
US3402565A (en) * 1966-07-26 1968-09-24 Smith Corp A O Pressure responsive refrigeration motor control
US3390539A (en) * 1966-10-31 1968-07-02 Trane Co Apparatus for controlling refrigeration systems
US3354665A (en) * 1966-12-01 1967-11-28 Trane Co Condenser fan speed control

Also Published As

Publication number Publication date
US3633376A (en) 1972-01-11

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PCNP Patent ceased through non-payment of renewal fee