The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 06, 1988

Filed:

Sep. 24, 1986
Applicant:
Inventors:

Kazuo Takemasa, Ota, JP;

Fukuji Yoshida, Nitta, JP;

Kenji Iwasa, Chiyoda, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25B / ;
U.S. Cl.
CPC ...
62335 ; 62113 ; 62114 ; 62175 ; 62502 ; 62512 ; 62513 ;
Abstract

A refrigeration system includes first and second refrigerant circuits each having a compressor, a condenser and an evaporator, each of the refrigerant circuits being charged with an organic refrigerant. The evaporator of the first refrigerant circuit is divided into a plurality of evaporator portions connected together in series. The condenser of the second refrigerant circuit is divided into condenser portions equal in number to the number of the evaporator portions of the first refrigerant circuit. The condenser portions of the second refrigerant circuit are paired with the evaporator portions of the first refrigerant circuit to provide heat exchangers. The refrigerant of the second refrigerant circuit is a mixture of refrigerants different in kind and in boiling point.


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