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. 10, 2007
Filed:
May. 19, 2004
Haruhisa Yamasaki, Gunma, JP;
Kenzo Matsumoto, Gunma, JP;
Shigeya Ishigaki, Gunma, JP;
Masaji Yamanaka, Gunma, JP;
Kentaro Yamaguchi, Gunma, JP;
Haruhisa Yamasaki, Gunma, JP;
Kenzo Matsumoto, Gunma, JP;
Shigeya Ishigaki, Gunma, JP;
Masaji Yamanaka, Gunma, JP;
Kentaro Yamaguchi, Gunma, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
There is provided a cooling apparatus which can improve a cooling efficiency while preventing an abnormal increase in pressure of a high side. The cooling apparatus comprises: a refrigerant circuit which uses carbon dioxide as a refrigerant; a control device which controls a speed of rotation of the compressor between predetermined lowest and highest speeds; and a cooled state sensor which detects a cooled state in a refrigerator main body to be cooled by an evaporator included in the refrigerant circuit. The control device increases a highest speed of rotation of the compressor if a temperature in the chamber of the refrigerator main body detected by the cooled state sensor is low.