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:
Jan. 31, 1978

Filed:

Oct. 01, 1975
Applicant:
Inventors:

Maurice de Cachard, La Tronche, FR;

Robert Moracchioli, Seyssinet, FR;

Gerard Marie, Eybens, FR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25B / ; F25B / ;
U.S. Cl.
CPC ...
62116 ; 60651 ; 60671 ; 62117 ; 6246 / ;
Abstract

A first mass of driving vapor is admitted into a single chamber of variable volume and permitted to perform isobaric then polytropic work in an expansion which increases the chamber volume. A second mass of vapor derived from the refrigeration cycle is then admitted at constant pressure in order to attain maximum volume. The work performed by the driving vapor is utilized in a polytropic process for compressing the vapor masses which are then discharged to the condenser in an isobaric process when the chamber approaches minimum volume.


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