EP0516093B1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Refrigerating unit
Assignee: Sanyo Electric Co Ltd
•
Filing: 1992-05-27
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Granted: 1996-04-24
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Expires: 2012-05-27
Abstract
No abstract record available.
Inventors
- 👤 Jiro Yuzawa
- 👤 Kazuo Takemasa
- 👤 Katuhiko Inoue
- 👤 Fukuji Yoshida
- 👤 Yutaka Ohmori
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 19:56
CPC Classifications
C; C09; C09K; C09K5/00; C09K5/02; C09K5/04; C09K5/041; C09K5/044; C09K5/045; F; F25; F25B; F25B7/00; F25B9/00; F25B9/002; F25B9/006; C09K2205/00; C09K2205/10; C09K2205/12; C09K2205/122; C09K2205/128; C09K2205/13; F25B2400/00; F25B2400/12
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
137 words
A refrigerating unit comprising a high temperature side refrigerant circuit and a low temperature side refrigerant circuit for forming an independent refrigerant closed-circuit which exhibits a refrigerating effect by that a refrigerant discharged from a compressor is condensed and then is evaporated, and an evaporator of said high temperature side refrigerant circuit and a condenser of said low temperature side refrigerant circuit form a thermal exchanger, characterized in that a non-azeotropic mixture refrigerant comprising; (a) 3 to 13% by weight of argon; (b) 3 to 13% by weight of methane; (c) 0 to 32% by weight of dichlorofluoromethane and 15 to 45% by weight of tetrafluoromethane; (d) 13 to 53% by weight of chlorodifluoromethane, difluoromethane or pentafluoroethane; and (e) 10 to 36% by weight of trifluoromethane and/or hexafluoroethane, is sealed into said low temperature side refrigerant circuit.
Claim 2
Dependent Claim
27 words
The refrigerating unit according to Claim 1, wherein another non-azeotropic mixture refrigerant comprising chlorodifluoromethane, 1-chloro-1, 1-difluoroethane, and dichlorofluoromethane is sealed into said high temperature side refrigerant circuit.
Claim 3
Dependent Claim
38 words
The refrigerating unit according to Claim 2, wherein the non-azeotropic mixture refrigerant sealed into the high temperature side refrigerant circuit comprises 70% by weight of chlorodifluoromethane, 25% by weight of 1-chloro-1, 1-difluoroethane, and 5% by weight of dichlorofluoromethane.
Claim 4
Dependent Claim
26 words
The refrigerating unit according to Claim 1, wherein another non-azeotropic mixture refrigerant comprising chlorodifluoromethane, 1-chloro-1, 1-difluoroethane, octafluoropropane is sealed into the high temperature side refrigerant circuit.
Claim 5
Dependent Claim
38 words
The refrigerating unit according to Claim 4, wherein the non-azeotropic mixture refrigerant sealed into the high temperature side refrigerant circuit comprises 70% by weight of chlordifluoromethane, 25% by weight of 1-chloro-1, 1-difluoroethane, and 5% by weight of octafluorpropane.
Claim 6
Dependent Claim
24 words
The refrigerating unit according to Claim 1, wherein octafluoropropane is added to the non-azeotropic mixture refrigerant sealed into the low temperature side refrigerant circuit.
Claim 7
Dependent Claim
12 words
The refrigerating unit according to Claim 1, wherein (d) component is chlorodifluoromethane.
Claim 8
Dependent Claim
12 words
The refrigerating unit according to Claim 1, wherein (d) component is difluoromethane.
Claim 9
Dependent Claim
12 words
The refrigerating unit according to Claim 1, wherein (d) component is pentafluoroethane.
Claim 10
Dependent Claim
17 words
The refrigerating unit according to Claim 1, wherein (e) component is a mixture of trifluoromethane and hexafluoroethane.
Claim 11
Dependent Claim
12 words
The refrigerating unit according to Claim 1, wherein (e) component is trifluoromethane.
Claim 12
Dependent Claim
12 words
The refrigerating unit according to Claim 1, wherein (e) component is hexafluoroethane.
Claim 13
Dependent Claim
24 words
The refrigerating unit according to Claim 1, wherein nitrogen is added to the non-azeotropic mixture refrigerant sealed into the low temperature side refrigerant circuit.
References Cited (Backward Citations)
No citation records indexed.
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