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:
Nov. 13, 1990
Filed:
Nov. 30, 1989
Seiichi Osawa, Kumagaya, JP;
Hironobu Oshima, Ota, JP;
Fusao Terada, Ota, JP;
Morio Ishii, Tatebayashi, JP;
Fumio Saito, Ota, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
A heat pump apparatus comprising: a heat pump circuit composed of an external combustion engine, a radiator through which a first medium heated by a first heat exchanger of said external combustion engine flows and a cooler through which a second medium cooled by a second heat exchanger of said external combustion engine flows; a motor for supplementing a motive power to said external combustion engine; a brake for braking said external combustion engine; a detector for detecting a heating load; and a controller for calculating a motive power necessary for said external combustion engine based on the difference between a value detected by said detector and a preset value previously set, and for controlling said motor to move when the calculated motive power is larger than a self-output of said external combustion engine.