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. 30, 2007
Filed:
Aug. 11, 2004
Kenzo Matsumoto, Gunma, JP;
Haruhisa Yamasaki, Gunma, JP;
Masaya Tadano, Gunma, JP;
Kazuya Sato, Gunma, JP;
Dai Matsuura, Gunma, JP;
Takayasu Saito, Gunma, JP;
Noriyuki Tsuda, Ora-Gun, JP;
Kenzo Matsumoto, Gunma, JP;
Haruhisa Yamasaki, Gunma, JP;
Masaya Tadano, Gunma, JP;
Kazuya Sato, Gunma, JP;
Dai Matsuura, Gunma, JP;
Takayasu Saito, Gunma, JP;
Noriyuki Tsuda, Ora-Gun, JP;
Sanyo, Electric Co., Ltd, Osaka, JP;
Abstract
An object of the present invention is to provide a method for manufacturing a multi-stage compression type rotary compressor which can avoid the replacement of parts to be used as much as possible to reduce costs and also which enables easily setting an appropriate displacement volume ratio while preventing the compressor from being increased in size. The gist of the present invention is that an inner diameter of a lower cylinder is altered without altering its thickness (or height), and a displacement volume ratio between first and second rotary compression elements is set to an optimum value in accordance with the alteration.