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:
Apr. 05, 2016
Filed:
Apr. 07, 2008
Satoshi Kawano, Sakai, JP;
Masahiro Oka, Sakai, JP;
Kazuhiko Tani, Sakai, JP;
Atsushi Okamoto, Sakai, JP;
Satoshi Kawano, Sakai, JP;
Masahiro Oka, Sakai, JP;
Kazuhiko Tani, Sakai, JP;
Atsushi Okamoto, Sakai, JP;
Daikin Industries, Ltd., Osaka, JP;
Abstract
An electric valve is provided in a supply pipe. A flow rate control unit controls the degree of opening of the electric valve such that the flow rate in the supply pipe lies within a predetermined range, on the basis of a pressure difference between pressure of refrigerant supplied to the supply pipe and the pressure of refrigerant on the suction side of a compressor. An outdoor air temperature sensor detects outdoor air temperature; and a low-pressure side pressure sensor detects refrigerant pressure on the suction side of the compressor. The pressure difference is a difference between a saturation pressure corresponding to the outdoor air temperature detected by the outdoor air temperature sensor and refrigerant pressure detected by the low-pressure side pressure sensor.