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. 14, 2003
Filed:
Oct. 23, 2000
Applicant:
Inventors:
Shin Nishida, Mishima, JP;
Motohiro Yamaguchi, Hoi-gun, JP;
Satoshi Itoh, Kariya, JP;
Yasutaka Kuroda, Anjo, JP;
Yoshitaka Tomatsu, Chiryu, JP;
Yasushi Yamanaka, Nakashima-gun, JP;
Yukikatsu Ozaki, Gamagori, JP;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F25B 4/900 ; F25B 1/00 ;
U.S. Cl.
CPC ...
F25B 4/900 ; F25B 1/00 ;
Abstract
In a refrigerant cycle system, a control unit controls both a refrigerant amount discharged from a compressor and an opening degree of a pressure control valve so that theoretical efficiency of a super-critical refrigerant cycle and efficiency of the compressor are improved. Therefore, the effective coefficient of performance of the refrigerant cycle is improved, while necessary capacity of components of the refrigerant cycle is obtained.