TWO STAGE COMPRESSION FREEZER/REFRIGERATOR

Japanese Patent JP3847499

B2

PROBLEM TO BE SOLVED: To obtain a two-stage freezer/refrigerator in which variation of load in the freezer compartment and the refrigeration compartment can be dealt with, temperature in the compartment can be made uniform, and defrosting method of an evaporator is established while reducing power consumption.
SOLUTION: The two-stage freezer/refrigerator comprises a first on/off valve 29, a second on/off valve 30, a third on/off valve 31, a fourth on/off valve 32, a fifth on/off valve 33, a first bypath 35 interconnecting the delivery side of a low stage compression element 22 and the delivery side of a high stage compression element 23, a sixth on/off valve 36, a second bypath 37 interconnecting the suction side of the low stage compression element 22 and the section side of the high stage compression element 23, and a seventh on/off valve 38. Each compartment can be cooled correctly or cooled quickly depending on the variation of load in the freezer compartment and the refrigeration compartment by controlling opening/closing of these valves and bypaths. Furthermore, cooling of any one of the freezer compartment or the refrigeration compartment can be stopped at the time of defrosting a cooler and the cooler can be defrosted without relying on an external heating means.

JPH11223447	METHOD FOR CONTROLLING REFRIGERATOR
JPS6023766	QUICK REFRIGERATOR FOR REFRIGERATOR
WO/2019/132401	REFRIGERATOR HAVING HIGH FREQUENCY WAVE THAWING DEVICE

Kosuke Tsuboi
Akashi Hiroshi
Yoshio Takao

JP28651799A

November 22, 2006

October 07, 1999

Click for automatic bibliography generation  

Matsushita Cold Machinery Co., Ltd.

F25D11/02; F25B1/10; F25B5/02; F25B47/02; F25D21/06; (IPC1-7): F25D11/02; F25B1/10; F25B5/02; F25D21/06

JP210063A
JP611198A
JP6147691A
JP62225859A
JP6410066A
JP109139A

Fumio Iwahashi
Hiroki Naito
Daisuke Nagano

Previous Patent: DRIER FOR BATHROOM

Next Patent: METHOD OF PLANALIZING SEMICONDUCTOR WAFER, AND PLANALIZING DEVICE