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. 03, 2009
Filed:
Mar. 23, 2007
Applicant:
Ryusuke Muto, Yokohama, JP;
Inventor:
Ryusuke Muto, Yokohama, JP;
Assignee:
Anest Iwata Corporation, Yokohama-shi, Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01C 1/02 (2006.01); F03C 2/00 (2006.01); F04C 2/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a scroll fluid machine, a driving shaft has an eccentric axial portion around which an orbiting scroll revolves while the orbiting scroll engages with a fixed scroll. A cooling path extends through the driving shaft to a gap between the outer circumferential surface of the eccentric axial portion and the inner circumferential surface of an axial hole of the orbiting scroll. A cooling gas is introduced into the cooling path to cool bearings around the driving shaft. A forced convection generating portion is provided on the driving shaft for sucking the cooling gas into the gap and discharging the gas.