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 9222710 B1

PDF
Full Text
Expired
Date of Patent:
Dec. 29, 2015

Filed:

Jun. 27, 2011
Applicants:

Akira Katayama, Tokyo, JP;

Nobuya Nakagawa, Tokyo, JP;

Toshihisa Kondou, Tokyo, JP;

Masatoshi Morishita, Tokyo, JP;

Inventors:

Akira Katayama, Tokyo, JP;

Nobuya Nakagawa, Tokyo, JP;

Toshihisa Kondou, Tokyo, JP;

Masatoshi Morishita, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60H 1/32 (2006.01); F25B 30/02 (2006.01); B60H 1/00 (2006.01);
U.S. Cl.
CPC ...
F25B 30/02 (2013.01); B60H 1/00921 (2013.01); F25B 2400/16 (2013.01);
Abstract

A refrigerant cycle () for cooling as a prototype is provided with: an internal condenser () connected to a discharge circuit of an electric compressor () and disposed on a downstream of an internal evaporator () of an HVAC unit (); a first heating circuit () connected to a receiver () through a switching unit () arranged on an inlet side of the external condenser (); and a second heating circuit () connected between an outlet side of the receiver () and a suction side of the electric compressor () and provided with a second expansion valve () and an external evaporator (). A heat pump cycle () for heating is formed by a second heating circuit () including the electric compressor (), the internal condenser (), the switching unit (), the first heating circuit (), the receiver (), the second expansion valve (), and the external evaporator ().


Find Patent Forward Citations

Katayama, Akira. (2015). Heat-pump automotive air conditioner and defrosting method of the heat-pump automotive air conditioner (U.S. Patent No. 9222710). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9222710

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