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:
Jun. 21, 2005
Filed:
Nov. 06, 2003
Kazuya Sato, Oizumi-machi, JP;
Kenzo Matsumoto, Oizumi-machi, JP;
Haruhisa Yamasaki, Oizumi-machi, JP;
Akifumi Tomiuka, Isesaki, JP;
Kazuaki Fujiwara, Ota, JP;
Kentaro Yamaguchi, Oizumi-machi, JP;
Masaji Yamanaka, Tatebayashi, JP;
Kazuya Sato, Oizumi-machi, JP;
Kenzo Matsumoto, Oizumi-machi, JP;
Haruhisa Yamasaki, Oizumi-machi, JP;
Akifumi Tomiuka, Isesaki, JP;
Kazuaki Fujiwara, Ota, JP;
Kentaro Yamaguchi, Oizumi-machi, JP;
Masaji Yamanaka, Tatebayashi, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
A multi-stage compression type rotary compressor, having a driving element and a first and a second rotary compression element that are driven by the driving element in a sealed container, is provided. The refrigerant compressed by the first rotary compression element is discharged into the sealed container, and said discharged refrigerant with an intermediate pressure is then compressed by the second rotary compression element. By cooling the refrigerant absorbed into the second rotary compression element, the rise in the temperature of the refrigerant that is compressed and discharged by the second rotary compression element can be suppressed. And, the supercooling degree of the refrigerant is increases before reaching the expansion valve to improve the cooling ability of the evaporator.