Title:
FREEZING APPARATUS
Document Type and Number:
Japanese Patent JP3600108
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a freezing apparatus in which a load to an environment is reduced and a large quantity of heat can be taken out, returning of freezer oil to a compressor is excellent, and it is stably useable over a long period of time.
SOLUTION: A freezing apparatus is provided in which carbon dioxide is used as a refrigerant to a freezing circuit including a compressor, a heat radiator, an expansion mechanism, and an evaporator. As the freezer oil used for the compressor there is used freezer oil with viscosity of 5 to 300 cSt at 40°C, volume specific resistance of 108 Ω.cm or higher, and a flow-point of -30°C or lower when carbon dioxide is solved up to saturation. An organic material for use in the freezing circuit is a material not denatured physically and/or chemically by high temperature high pressure carbon dioxide.
Inventors:
Takeo Komatsubara
Yasuki Takahashi
Hiroyuki Ehara
Miyuki Kawamura
Yasuki Takahashi
Hiroyuki Ehara
Miyuki Kawamura
Application Number:
JP2000066309A
Publication Date:
December 08, 2004
Filing Date:
March 10, 2000
Export Citation:
Assignee:
Sanyo Electric Co., Ltd.
International Classes:
F25B1/00; C09K5/04; C10M171/00; H02K3/30; C10N40/30; (IPC1-7): F25B1/00
Domestic Patent References:
| JP10147682A | ||||
| JP11172231A |
Attorney, Agent or Firm:
Atsushi Nakajima
Kato Kazunori
Katsuichi Nishimoto
Hiroshi Fukuda
Kato Kazunori
Katsuichi Nishimoto
Hiroshi Fukuda
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