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:
Feb. 21, 2006
Filed:
Oct. 09, 2003
Kenzo Matsumoto, Oizumi-machi, JP;
Masaji Yamanaka, Tatebayashi, JP;
Haruhisa Yamasaki, Oizumi-machi, JP;
Kazuya Sato, Oizumi-machi, JP;
Kentaro Yamaguchi, Oizumi-machi, JP;
Kazuaki Fujiwara, Ota, JP;
Akifumi Tomiuka, Isesaki, JP;
Kenzo Matsumoto, Oizumi-machi, JP;
Masaji Yamanaka, Tatebayashi, JP;
Haruhisa Yamasaki, Oizumi-machi, JP;
Kazuya Sato, Oizumi-machi, JP;
Kentaro Yamaguchi, Oizumi-machi, JP;
Kazuaki Fujiwara, Ota, JP;
Akifumi Tomiuka, Isesaki, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
A refrigerant cycling device is provided. The refrigerant cycling device comprises a compressor, an intermediate cooling circuit and a three-way valve device. The compressor is connected to a heat exchanger and a depressurizing means, for performing a cooling operation and a heating operation. The compressor further comprises a first and a second rotary compression elements within a sealed container, and a refrigerant that is compressed and discharged by the first rotary compression element is introduced to the second rotary compression element. The intermediate cooling circuit is used for radiating heat of the refrigerant discharged from the first rotary compression element. The three-way valve device for opening a passage of the intermediate cooling circuit during the cooling operation. In this way, the coefficient of production (COP) during the cooling operation can be improved.