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:
Aug. 21, 1990
Filed:
Dec. 18, 1989
Applicant:
Inventor:
Nobuhiko Suzuki, Konan, JP;
Assignee:
Diesel Kiki Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25B / ;
U.S. Cl.
CPC ...
622387 ; 62244 ; 623231 ; 623246 ; 165 42 ; 237 / ;
Abstract
An automobile air-conditioner of the type having a heat pump includes an exhaust gas heat exchanger for heating an engine cooling water by means of engine exhaust gas for rapidly increasing the temperature of air passing through a heater core when the heating operation is started, and a bypass passage bypassing a part of the engine cooling water and disposed in contact with a heat exchanger of the heat pump so as to achieve heat exchange operation between a refrigerant and the engine cooling water.