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:
Oct. 17, 2006
Filed:
Sep. 24, 2004
Hiroshi Ogawa, Nagoya, JP;
Mikio Matsuda, Okazaki, JP;
Kazuhide Uchida, Hamamatsu, JP;
Shigeki Iwanami, Okazaki, JP;
Keiichi Uno, Kariya, JP;
Hironori Asa, Okazaki, JP;
Hiroshi Ogawa, Nagoya, JP;
Mikio Matsuda, Okazaki, JP;
Kazuhide Uchida, Hamamatsu, JP;
Shigeki Iwanami, Okazaki, JP;
Keiichi Uno, Kariya, JP;
Hironori Asa, Okazaki, JP;
Nippon Soken, Inc., Nishio, JP;
Denso Corporation, Kariya, JP;
Abstract
A fluid machine for a gas compression refrigerating system comprises a first and a second working for performing a pump mode operation, in which working fluid of low pressure is sucked into and compressed by the working chambers. The fluid machine further comprises valve mechanism for selectively forming a motor mode passage in combination with a fluid passage change-over device, so that super heated working fluid of high pressure is introduced into at least one of the working chambers to perform a motor mode operation, in which the high pressure working fluid is expanded in the working chamber to obtain mechanical energy. The fluid machine according to the invention, therefore, performs the pump mode operation at one of the working chambers and at the same time the motor mode operation at the other working chamber.