GB2272275A - Refrigeration system utilizing an expansion device in the evaporator - Google Patents

Refrigeration system utilizing an expansion device in the evaporator

Info

Publication number
GB2272275A
GB2272275A GB9325717A GB9325717A GB2272275A GB 2272275 A GB2272275 A GB 2272275A GB 9325717 A GB9325717 A GB 9325717A GB 9325717 A GB9325717 A GB 9325717A GB 2272275 A GB2272275 A GB 2272275A
Authority
GB
United Kingdom
Prior art keywords
evaporator
expansion device
refrigerant
expansion
compressor
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
GB9325717A
Other versions
GB2272275B (en
GB9325717D0 (en
Inventor
Richard Herman Alsenz
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB9325717D0 publication Critical patent/GB9325717D0/en
Publication of GB2272275A publication Critical patent/GB2272275A/en
Application granted granted Critical
Publication of GB2272275B publication Critical patent/GB2272275B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • F25B27/00—Machines, plants or systems, using particular sources of energy
    • 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
    • F25B11/00—Compression machines, plants or systems, using turbines, e.g. gas turbines
    • F25B11/02—Compression machines, plants or systems, using turbines, e.g. gas turbines as expanders
    • 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
    • F25B41/00—Fluid-circulation arrangements
    • 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
    • F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
    • 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
    • F25B2341/00—Details of ejectors not being used as compression device; Details of flow restrictors or expansion valves
    • F25B2341/001—Ejectors not being used as compression device
    • F25B2341/0012—Ejectors with the cooled primary flow at high pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Air Conditioning Control Device (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)

Abstract

A closed loop refrigeration system utilizing an expansion device in the evaporation system is disclosed. In one embodiment (Fig. 1), an expansion engine (170) is connected to the evaporator inlet (164) while a compressor (175) is connected to the evaporator outlet (172). Liquid refrigerant flows through the expansion engine (170) wherein it expands and drives the expansion engine. The compressor (175) may be driven by the expansion engine (170) or by a separate motor. A control circuit adjusts the refrigerant through the control valve (174) in a manner which maintains a desired degree of superheat of the refrigerant leaving the compressor. In an alternate embodiment (Fig. 4), the evaporator system has two evaporators (54, 204). An expansion device (180) is disposed between the inlet of the first evaporator (54) and the outlet (184) of the second evaporator (204). Partially subcooled liquid refrigerant from the first evaporator (54) is passed into the second evaporator (204) through an expansion valve (186) wherein it evaporates into a gas refrigerant. Liquid refrigerant is discharged into the expansion device (180) wherein it expands and raises the energy of the gas refrigerant arriving from the second evaporator (204) into the expansion device. Liquid refrigerant from the expansion device is fed to the first evaporator (54) while the gas refrigerant is passed on to a compressor. A control circuit adjusts the flow of the refrigerant into the expansion device (180).
GB9325717A 1992-04-23 1992-04-23 Refrigeration system utilizing an expansion device in the evaporator Expired - Fee Related GB2272275B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1992/003465 WO1993022605A1 (en) 1992-04-23 1992-04-23 Refrigeration system utilizing an expansion device in the evaporator

Publications (3)

Publication Number Publication Date
GB9325717D0 GB9325717D0 (en) 1994-02-16
GB2272275A true GB2272275A (en) 1994-05-11
GB2272275B GB2272275B (en) 1996-06-12

Family

ID=22231022

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9325717A Expired - Fee Related GB2272275B (en) 1992-04-23 1992-04-23 Refrigeration system utilizing an expansion device in the evaporator

Country Status (4)

Country Link
AU (1) AU663873B2 (en)
DE (1) DE4294880T1 (en)
GB (1) GB2272275B (en)
WO (1) WO1993022605A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2158899A1 (en) * 1994-09-30 1996-03-31 Steven Jay Pincus Refrigeration system with pulsed ejector and vertical evaporator
DE102016005958A1 (en) * 2016-05-13 2017-11-16 Liebherr-Transportation Systems Gmbh & Co. Kg cooler

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1836318A (en) * 1926-07-26 1931-12-15 Norman H Gay Refrigerating system
US2146797A (en) * 1937-05-20 1939-02-14 Gen Motors Corp Refrigerating apparatus
US2519010A (en) * 1947-08-02 1950-08-15 Philco Corp Refrigeration system and method
US2534455A (en) * 1944-06-08 1950-12-19 Honeywell Regulator Co Refrigerating control apparatus
US2763995A (en) * 1952-01-09 1956-09-25 Acme Ind Inc Refrigeration circulation and method of oil return
US4235079A (en) * 1978-12-29 1980-11-25 Masser Paul S Vapor compression refrigeration and heat pump apparatus
US4790145A (en) * 1987-11-13 1988-12-13 Eaton Corporation Superheat control of air conditioning system incorporating fuel cooler

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4947679A (en) * 1972-09-08 1974-05-08
US5115644A (en) * 1979-07-31 1992-05-26 Alsenz Richard H Method and apparatus for condensing and subcooling refrigerant
US5079929A (en) * 1979-07-31 1992-01-14 Alsenz Richard H Multi-stage refrigeration apparatus and method
AU8841591A (en) * 1990-10-01 1992-04-28 Richard H. Alsenz Refrigeration method and apparatus utilizing an expansion engine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1836318A (en) * 1926-07-26 1931-12-15 Norman H Gay Refrigerating system
US2146797A (en) * 1937-05-20 1939-02-14 Gen Motors Corp Refrigerating apparatus
US2534455A (en) * 1944-06-08 1950-12-19 Honeywell Regulator Co Refrigerating control apparatus
US2519010A (en) * 1947-08-02 1950-08-15 Philco Corp Refrigeration system and method
US2763995A (en) * 1952-01-09 1956-09-25 Acme Ind Inc Refrigeration circulation and method of oil return
US4235079A (en) * 1978-12-29 1980-11-25 Masser Paul S Vapor compression refrigeration and heat pump apparatus
US4790145A (en) * 1987-11-13 1988-12-13 Eaton Corporation Superheat control of air conditioning system incorporating fuel cooler

Also Published As

Publication number Publication date
AU1890192A (en) 1993-11-29
AU663873B2 (en) 1995-10-26
DE4294880T1 (en) 1994-06-09
GB2272275B (en) 1996-06-12
WO1993022605A1 (en) 1993-11-11
GB9325717D0 (en) 1994-02-16

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19980423