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:
Jun. 18, 1991
Filed:
Aug. 03, 1989
Asea Brown Boveri Ltd., Baden, CH;
Abstract
A displacement machine for compressing fluids includes a housing, a rotor in the housing and a drive shaft journalled in the housing and eccentrically mounting the rotor. A guide shaft journalled in the housing by a slide bearing guides the oscillation of the rotor. Intermeshing spiral strips on the rotor and housing produce compression of fluid in working chambers during oscillation of the rotor. In order to lubricate the drive and guide shafts, a lubricating system includes a bore supplying lubricant to the slide bearing, lubricant passages in the drive shaft and an intermediate line connecting the lubricant outlets from the slide bearing to the lubricant passages in the drive shaft. The guide shaft may be hollow to provide a bore therein which also communicates with the lubricant outlets from the slide bearing and supplies lubricant to an eccentric of the guide shaft.