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. 17, 1987
Filed:
Dec. 04, 1985
Hitachi, Ltd., Tokyo, JP;
Abstract
A method and an apparatus for automatically positioning stationary and orbiting scroll members of a scroll-type fluid machine. The method comprises temporarily positioning the scroll members; causing the orbiting scroll member to progressively orbit with respect to the stationary scroll member held at the temporary position and detecting, when wraps of the scroll members are made to contact each other, the degree of contact of the scroll wraps; detecting the direction of contact between both wraps when both wraps are made to contact each other; inputting the data concerning the degree of contact and the direction of contact to a computing means such as to move the stationary scroll member in X- and Y-axis directions by amounts corresponding to the degree and direction of contact, thereby to avoid the contact between the wraps of both scroll members; and, while the stationary scroll member is held at the position where the contact is avoided, inserting bolts to bolt holes formed beforehand in both scroll members, thereby fastening both scroll members.