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:
Aug. 13, 2002
Filed:
Sep. 07, 2000
Denji Mashimo, Osaka-fu, JP;
Hiroshi Nishikawa, Osaka-fu, JP;
Takahiro Nishikawa, Osaka-fu, JP;
Yasuo Sakamoto, Osaka-fu, JP;
Takayuki Mizuno, Osaka-fu, JP;
Kazuya Sato, Osaka-fu, JP;
Makoto Aida, Osaka-fu, JP;
Sanyo Electric Co., Ltd., Osaka-fu, JP;
Abstract
There is provided a multistage high pressure compressor in which a rotor is supported with respect to a rotating shaft of an electric motor and which can suppress a torque fluctuation of the electric motor and achieve a stable operation of the electric motor. A fly wheel is attached to a lower end of the rotating shaft of the electric motor, and the fly wheel supports the rotor of the electric motor with respect to the rotating shaft. The fly wheel is connected to the lower end of the rotating shaft of the electric motor by a bolt, and an extension of a detent key between the rotating shaft of the electric motor and the rotor of the electric motor is inserted into the fly wheel. Moreover, there is provided a multistage high pressure compressor achieving improved sealing between a cylinder and members surrounding the periphery thereof, which is capable of realizing a simplified processing of the cylinder and an easy assembly process. Seal spaces in which seal rings are compressed between the cylinder and the members surrounding thereof are provided at the outer peripheries at the both ends of the cylinder.