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. 30, 2011
Filed:
Jul. 26, 2006
Shinobu Kokubun, Tokyo, JP;
Toshiaki Iwasaki, Tokyo, JP;
Tomohiro Shirahata, Tokyo, JP;
Mitsubishi Electric Corporation, Chiyoda-Ku, Tokyo, JP;
Abstract
A positioning system used in assembling a scroll-type fluid machine includes a radial thrust mechanism driving motor for turning a radial thrust mechanism in synchronism with rotational phase of a rotary shaft, a vertical pressing mechanism for producing a vertical pressing force for pressing a stationary scroll against a frame, a displacement sensor for measuring horizontal displacements of a stationary scroll retaining mechanism from at least two directions, a first processor for calculating an orbital path of the stationary scroll from obtained measurement values, a second processor for evaluating stability of the orbital path of the stationary scroll based on vertical pressing force data and the orbital path of the stationary scroll, and a third processor for calculating a fixing point on which the stationary scroll is to be fixedly centered with respect to the frame when the orbital path of the stationary scroll is judged to be stable.