JPS6449865A - Refrigerator - Google Patents

Refrigerator

Info

Publication number
JPS6449865A
JPS6449865A JP20614287A JP20614287A JPS6449865A JP S6449865 A JPS6449865 A JP S6449865A JP 20614287 A JP20614287 A JP 20614287A JP 20614287 A JP20614287 A JP 20614287A JP S6449865 A JPS6449865 A JP S6449865A
Authority
JP
Japan
Prior art keywords
hot gas
defrosting
refrigerant
opening
amount
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.)
Pending
Application number
JP20614287A
Other languages
Japanese (ja)
Inventor
Kazunari Tamura
Minoru Ogita
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.)
Daikin Industries Ltd
Original Assignee
Daikin Industries 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 Daikin Industries Ltd filed Critical Daikin Industries Ltd
Priority to JP20614287A priority Critical patent/JPS6449865A/en
Publication of JPS6449865A publication Critical patent/JPS6449865A/en
Pending 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
    • F25B2400/19—Pumping down refrigerant from one part of the cycle to another part of the cycle, e.g. when the cycle is changed from cooling to heating, or before a defrost cycle is started

Landscapes

  • Defrosting Systems (AREA)

Abstract

PURPOSE: To improve defrosting capability and shorten defrosting time by metering a predetermined amount of a refrigerant in a metering part with opening/closing operation of first and second opening/closing mechanisms to force the refrigerant to flow out to a hot gas circulation circuit, and releasing part of the hot gas to a condenser side when discharge line pressure exceeds a predetermined value. CONSTITUTION: When frost is produced in an evaporator 4 and defrosting operation is performed, a first opening/closing mechanism 8 is closed for pump-down operation in which operation a refrigerant is contained from a downstream side of the first opening/closing mechanism 8 to a part of a condenser 2, and hence a second opening/ closing mechanism 9 is closed, and in a metering part 10 there is metered a refrigerant amount that takes as a reference an optimum amount when defrosting operation is performed when the atmosphere is low, and the metered refrigerant is flowed out to a hot gas circulation circuit. Accordingly, defrosting capability is improved for secure defrosting. When the atmosphere is high, pressure of the hot gas circulating the hot gas circulation circuit becomes high, and a part of the hot gas is released to a condenser 2 side by flow rate control means 11 whereby the defrosting operation is continued with an optimum hot gas amount.
JP20614287A 1987-08-18 1987-08-18 Refrigerator Pending JPS6449865A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20614287A JPS6449865A (en) 1987-08-18 1987-08-18 Refrigerator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20614287A JPS6449865A (en) 1987-08-18 1987-08-18 Refrigerator

Publications (1)

Publication Number Publication Date
JPS6449865A true JPS6449865A (en) 1989-02-27

Family

ID=16518486

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20614287A Pending JPS6449865A (en) 1987-08-18 1987-08-18 Refrigerator

Country Status (1)

Country Link
JP (1) JPS6449865A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009020546A1 (en) 2008-05-09 2009-12-31 Kao Corporation Toner for non-contact melting
CN111256253A (en) * 2020-01-19 2020-06-09 珠海格力电器股份有限公司 Refrigerant storage amount detection method, refrigerant storage amount detection device and air conditioner

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5795555A (en) * 1980-12-05 1982-06-14 Mitsubishi Electric Corp Cooler
JPS59197764A (en) * 1983-04-23 1984-11-09 ダイキン工業株式会社 Refrigeration equipment

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5795555A (en) * 1980-12-05 1982-06-14 Mitsubishi Electric Corp Cooler
JPS59197764A (en) * 1983-04-23 1984-11-09 ダイキン工業株式会社 Refrigeration equipment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009020546A1 (en) 2008-05-09 2009-12-31 Kao Corporation Toner for non-contact melting
CN111256253A (en) * 2020-01-19 2020-06-09 珠海格力电器股份有限公司 Refrigerant storage amount detection method, refrigerant storage amount detection device and air conditioner

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