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:
May. 29, 2001
Filed:
Sep. 23, 1999
Yasushi Hori, Osaka, JP;
Shinri Sada, Osaka, JP;
Daikin Industries, Ltd., Osaka, JP;
Abstract
A compressor (,), a heat releasing element (,A) of a heat exchanger (,) for heating, an electromotive expansion valve (,), and a heat absorbing element (,A) of a heat exchanger (,) for cooling are connected to each other to constitute a primary refrigerant circuit. A pump (,), a heat absorbing element (,B) of the heat exchanger (,) for heating, a first indoor heat exchanger (,), an electromotive expansion valve (,), a second indoor heat exchanger (,), and a heat releasing element (,B) of the heat exchanger (,) for cooling are connected to each other to compose a secondary refrigerant circuit (,). A liquid refrigerant ejected from the pump (,) is evaporated in the heat absorbing element (,B) of the heat exchanger (,) for heating, reduced in pressure by the electromotive expansion valve (,), and evaporated in the second indoor heat exchanger (,). Thereafter, the gas refrigerant is condensed in the heat releasing element (,B) of the heat exchanger (,) for heating to be returned to the pump (,).