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:
Jun. 14, 2005
Filed:
Sep. 16, 2003
Koji Ito, Nagoya, JP;
Tomohide Shindo, Kariya, JP;
Yoshihiko Okumura, Kariya, JP;
Takahiro Tokunaga, Kosai, JP;
Yoshiyuki Yamauchi, Chita-gun, JP;
Koji Ito, Nagoya, JP;
Tomohide Shindo, Kariya, JP;
Yoshihiko Okumura, Kariya, JP;
Takahiro Tokunaga, Kosai, JP;
Yoshiyuki Yamauchi, Chita-gun, JP;
DENSO Corporation, Kariya, JP;
Abstract
A heater for an air conditioner includes plural water tubes and plural refrigerant tubes which are arranged in parallel in an air flow direction. Therefore, the heater can heat air by using at least one of the heating sources while a pressure loss in the heater can be effectively reduced. For example, in a quick-heating mode, high-temperature refrigerant from a refrigerant cycle flows into the heater to heat the blown air, and low-temperature engine-cooling water from an engine bypasses the heater. In this case, thermal leakage from the refrigerant to the engine-cooling water is avoided.