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:
Nov. 25, 2008
Filed:
Mar. 27, 2007
Kazutaka Suefuji, Kawasaki, JP;
Shunsuke Mori, Yokohama, JP;
Junichi Nagasawa, Kamakura, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A scroll type fluid machine having a driving system including a counter weight and a sub weight, in which an efficiency of an assembling operation is enhanced by simplifying an assembling structure of the driving system. In the fluid machine, a sub weight () is provided on a rotary shaft () and a counter weight () is provided on a driving bush () . The driving bush () is attached to the rotary shaft () by an attachment bolt () to prevent relative rotation between the rotary shaft and the driving bush. The rotary shaft () supported by a main bearing () and is driven in rotation by a motor (), with the result that an orbiting scroll () performs an orbiting motion with respect to a fixed scroll ().