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:
Feb. 04, 1997
Filed:
Sep. 29, 1995
Naohito Sakamoto, Ooizumimachi, JP;
Ichiro Kamimura, Kasakakemachi, JP;
Yukiharu Inoue, Ooizumimachi, JP;
Kazuhiro Shimura, Ojimamachi, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
An air conditioner using a non-azeotropic mixture refrigerant formed of a high boiling-point refrigerant and a low boiling-point refrigerant is provided with a first temperature sensor for detecting a temperature at an inlet of an outdoor heat exchanger when the outdoor heat exchanger serves as an evaporator in heating cycle, a second temperature sensor for detecting an outside air temperature, and a controller for controlling an opening degree of an expansion valve on the basis of a temperature difference between the outside air temperature and the inlet temperature of said evaporator. For example, the opening degree of the expansion valve is controlled so that the temperature difference between the outside air temperature and the inlet temperature is equal to a predetermined value.