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. 28, 2001
Filed:
Dec. 03, 1999
Takeshi Tsuchiya, Ibaraki-ken, JP;
Isao Hayase, Tsuchiura, JP;
Kazuo Sakurai, Shizuoka-ken, JP;
Mutsunori Matsunaga, Shimizu, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A scroll type fluid machine which can practically exhibit an appropriate meshing condition between an orbiting scroll member and an unorbiting scroll member and which can enhance the energy efficiency. A positioning means for positioning the unorbiting scroll member in a frame to which the unorbiting scroll member is to be fixed, comprises an elongated positioning hole formed in the unorbiting stationary scroll, and a positioning pin provided on the frame, and with this arrangement, the positioning is carried out in such a way that the unorbiting scroll is movable, relative to the frame, in a direction of a straight line passing through the center of a stationary scroll lap within a plane orthogonal to the axis of the stationary scroll lap, but is unmovable in a direction crossing the straight line, and the stationary scroll is rotatable around a straight line which passes through a position where the straight line crosses the peripheral edge part of the stationary scroll, and which is in parallel with the above-mentioned axis.