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:
Sep. 06, 2011
Filed:
Apr. 22, 2005
Applicants:
Satoshi Ishikawa, Osaka, JP;
Takeshi Hikawa, Osaka, JP;
Toshiyuki Maeda, Shiga, JP;
Sumikazu Matsuno, Shiga, JP;
Inventors:
Satoshi Ishikawa, Osaka, JP;
Takeshi Hikawa, Osaka, JP;
Toshiyuki Maeda, Shiga, JP;
Sumikazu Matsuno, Shiga, JP;
Assignee:
Daikin Industries, Ltd., Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
F25B 49/00 (2006.01); H02P 7/00 (2006.01); H02P 27/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
To reduce a leakage current when a motor for driving a compressor is energized, with the compressor unoperated. Setting the carrier frequency of an inverter at a value lower than that used during normal operation to cause phase interruption electrification of the motor.