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:
Mar. 21, 2006
Filed:
Aug. 28, 2004
Ken Yanagisawa, Yokohama, JP;
Tamotsu Fujioka, Yokohama, JP;
Ken Yanagisawa, Yokohama, JP;
Tamotsu Fujioka, Yokohama, JP;
Anest Iwata Corporation, , JP;
Abstract
A scroll fluid machine comprises a stationary scroll and an orbiting scroll fitted on an eccentric portion of a driving shaft. The stationary scroll has a stationary end plate from which inner and outer stationary wraps project, and the orbiting scroll has an orbiting end plate from which inner and outer orbiting wraps project. Between the stationary and orbiting end plates, inner and outer annular partition walls are provided. Inside the inner partition wall, the inner stationary wrap is engaged with the inner orbiting wrap to form an expanding region, and between the inner and outer partition walls, the outer stationary wrap is engaged with the outer orbiting wrap to form a compressing region. A bore is formed through the orbiting end plate so that fluid expanded and cooled in the expanding region flows from the expanding region to rear surface of the orbiting end plate to cool the orbiting end plate.