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.:

US 6892549 B1

PDF
Full Text
Expired
Date of Patent:
May. 17, 2005

Filed:

Dec. 09, 2003
Applicants:

Masato Komura, Kariya, JP;

Kimihiko Sato, Handa, JP;

Yasutane Hijikata, Nagoya, JP;

Inventors:

Masato Komura, Kariya, JP;

Kimihiko Sato, Handa, JP;

Yasutane Hijikata, Nagoya, JP;

Assignee:

Denso Corporation, Kariya, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25B001/00 ; F25B049/00 ; F25B027/00 ;
U.S. Cl.
CPC ...
Abstract

In a vehicle air conditioner, a compressor is driven by a vehicle engine, and a displacement of the compressor is controlled based on a cooling load. When a post-evaporator air temperature (TE) is higher than a predetermined value (TEO+β), it is determined that the cooling load is large, and the compressor is forcibly controlled at maximum displacement that is larger than a control value controlled based on the cooling load. Accordingly, the post-evaporator air temperature (TE) can be rapidly reduced to be lower than the predetermined value (TEO+β), so that a driving time of the vehicle engine can be made shorter. As a result, fuel consumption efficiency of the vehicle engine can be effectively improved.


Find Patent Forward Citations

Komura, Masato. (2005). Vehicle air conditioner (U.S. Patent No. 6892549). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6892549

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