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.
Patent No.:
Date of Patent:
Sep. 11, 2001
Filed:
Dec. 09, 1997
Applicant:
Inventor:
Stefan Karl, Paris, FR;
Assignee:
Valeo Climatisation, La Verriere, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25B 4/100 ; F25B 4/900 ;
U.S. Cl.
CPC ...
F25B 4/100 ; F25B 4/900 ;
Abstract
A refrigerant fluid circuit for a motor vehicle includes an air conditioning loop and a heating loop, the heating loop comprising a heating branch. A variable opening valve is connected in the heating loop. This valve is controllable so as not only to control the distribution of the refrigerant fluid flowing in the circuit into the heating loop, but also to control the expansion of the fluid in its gaseous state in the heating loop in the additional heating mode.