JPH02282675A - Freezer - Google Patents

Freezer

Info

Publication number
JPH02282675A
JPH02282675A JP10341289A JP10341289A JPH02282675A JP H02282675 A JPH02282675 A JP H02282675A JP 10341289 A JP10341289 A JP 10341289A JP 10341289 A JP10341289 A JP 10341289A JP H02282675 A JPH02282675 A JP H02282675A
Authority
JP
Japan
Prior art keywords
expansion valve
valve
hot gas
pipe
way
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
JP10341289A
Other languages
Japanese (ja)
Other versions
JPH086991B2 (en
Inventor
Nobutaka Naruse
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.)
Hoshizaki Electric Co Ltd
Original Assignee
Hoshizaki Electric Co 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 Hoshizaki Electric Co Ltd filed Critical Hoshizaki Electric Co Ltd
Priority to JP10341289A priority Critical patent/JPH086991B2/en
Publication of JPH02282675A publication Critical patent/JPH02282675A/en
Publication of JPH086991B2 publication Critical patent/JPH086991B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PURPOSE: To enable a prevention of an opening of an expansion valve during a defrosting operation to be attained by a method wherein a bypassing pipe having a hot gas valve is connected in such a way as it may bypass a condensor and an expansion valve and then a mean pressure pipe is connected in such a way as an outlet port of a hot gas valve is communicated with the expansion valve.
CONSTITUTION: A bypassing pipe 20 having a hot gas valve 19 is connected to a freezing circuit 12 in such a way as it may bypass a condensor 14 and an expansion valve 15 and at the same time a mean pressure pipe 22 is connected in such a way as an outlet port of a hot gas valve 19 in the bypassing pipe 20 is communicated with the bypassing pipe 20, resulting in that during a hot gas defrosting operation, a higher pressure than that of the outlet of the expansion valve may act against a diaphragm of the expansion valve 15 and a needle valve of the expansion valve 15 is closed. Only the refrigerant gas of high temperature is flowed stably into an evaporator 2 without being influenced by an external temperature condition and thus an efficient defrosting operation can be carried out. During a freezing operation, the expansion valve 15 may control an evaporating pressure under the same characteristic as that of an inner mean pressure temperature working type expansion valve and then an efficient freezing operation can be carried out.
COPYRIGHT: (C)1990,JPO&Japio
JP10341289A 1989-04-25 1989-04-25 Refrigeration equipment Expired - Lifetime JPH086991B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10341289A JPH086991B2 (en) 1989-04-25 1989-04-25 Refrigeration equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10341289A JPH086991B2 (en) 1989-04-25 1989-04-25 Refrigeration equipment

Publications (2)

Publication Number Publication Date
JPH02282675A true JPH02282675A (en) 1990-11-20
JPH086991B2 JPH086991B2 (en) 1996-01-29

Family

ID=14353335

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10341289A Expired - Lifetime JPH086991B2 (en) 1989-04-25 1989-04-25 Refrigeration equipment

Country Status (1)

Country Link
JP (1) JPH086991B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009036503A (en) * 2007-07-09 2009-02-19 Panasonic Corp Refrigerating cycle device and air conditioner having this refrigerating cycle device
JP2009145032A (en) * 2007-11-21 2009-07-02 Panasonic Corp Refrigeration cycle apparatus and air conditioner equipped with the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009036503A (en) * 2007-07-09 2009-02-19 Panasonic Corp Refrigerating cycle device and air conditioner having this refrigerating cycle device
JP2009145032A (en) * 2007-11-21 2009-07-02 Panasonic Corp Refrigeration cycle apparatus and air conditioner equipped with the same

Also Published As

Publication number Publication date
JPH086991B2 (en) 1996-01-29

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