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:
Jan. 25, 2011
Filed:
Dec. 21, 2006
Kiyoshi Terauchi, Isesaki, JP;
Kiyoshi Terauchi, Isesaki, JP;
Sanden Corporation, Isesaki-shi, Gunma, JP;
Abstract
A variable displacement compressor comprising a first control means for detecting the suction pressure of fluid or the crank chamber pressure and controlling the suction pressure to a target control value, and a second control means including means for detecting high-pressure side pressure to control the displacement of the compressor so as to relax an increase in the high-pressure side pressure when it is equal to or higher than a predetermined threshold and increasing the control value of the suction pressure depending on the increase in the high-pressure side pressure in a region exceeding the threshold. The control system is simple, the control valve is inexpensive and simple and capable of stabilized operation, and the variable displacement compressor has the internal control means suitable for refrigeration cycle operating in a supercritical region.