JPS54123757A - Refrigeration cycle for air conditioner - Google Patents

Refrigeration cycle for air conditioner

Info

Publication number
JPS54123757A
JPS54123757A JP2993878A JP2993878A JPS54123757A JP S54123757 A JPS54123757 A JP S54123757A JP 2993878 A JP2993878 A JP 2993878A JP 2993878 A JP2993878 A JP 2993878A JP S54123757 A JPS54123757 A JP S54123757A
Authority
JP
Japan
Prior art keywords
bypass circuit
temperature
circuit
compressor
refrigerant
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
JP2993878A
Other languages
Japanese (ja)
Other versions
JPS628702B2 (en
Inventor
Seigo Miyamoto
Yasuo Minoshima
Norimoto Matsuda
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP2993878A priority Critical patent/JPS54123757A/en
Publication of JPS54123757A publication Critical patent/JPS54123757A/en
Publication of JPS628702B2 publication Critical patent/JPS628702B2/ja
Granted 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
    • 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
    • F25B2400/13—Economisers

Landscapes

  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)

Abstract

PURPOSE: To prevent the rise in compressor discharge gas temperature on the time of opening of bypass circuit by providing in the course of a refrigeration cycle a first bypass circuit switching means, circuit expansion means, first bypass circuit, second bypass circuit, and second bypass circuit switching means.
CONSTITUTION: With a first bypass circuit B opened, the temperature of the discharge gas from a compressor rises with increasing cooling load on an evaporator 4 in a main circuit A. When the temperature has surpassed a limit, a temperature detector 112 of a switching means 11 for a second bypass circuit C detects it and transfers it to a bellofram 11j for extending the latter. This opens a valve body 11f through the function of a rod 11k, and results in that an inlet unit 11a is communicated with an outlet unit 11b and that a low-temperature low-pressure refrigerant in an expansion means 6 bypasses a refrigerant heat exchanger 7. The temperatures of the refrigerant in the circuit B and of the refrigerant sucked in the compressor 1 are lowered, so that the temperature of the discharge gas from the compressor 1 is lowered.
COPYRIGHT: (C)1979,JPO&Japio
JP2993878A 1978-03-17 1978-03-17 Refrigeration cycle for air conditioner Granted JPS54123757A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2993878A JPS54123757A (en) 1978-03-17 1978-03-17 Refrigeration cycle for air conditioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2993878A JPS54123757A (en) 1978-03-17 1978-03-17 Refrigeration cycle for air conditioner

Publications (2)

Publication Number Publication Date
JPS54123757A true JPS54123757A (en) 1979-09-26
JPS628702B2 JPS628702B2 (en) 1987-02-24

Family

ID=12289924

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2993878A Granted JPS54123757A (en) 1978-03-17 1978-03-17 Refrigeration cycle for air conditioner

Country Status (1)

Country Link
JP (1) JPS54123757A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012067967A (en) * 2010-09-24 2012-04-05 Panasonic Corp Refrigeration cycle apparatus and hot water heating apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012067967A (en) * 2010-09-24 2012-04-05 Panasonic Corp Refrigeration cycle apparatus and hot water heating apparatus

Also Published As

Publication number Publication date
JPS628702B2 (en) 1987-02-24

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