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:
May. 19, 1987
Filed:
Mar. 13, 1986
Arthur L Butterworth, La Crosse, WI (US);
American Standard Inc., New York, NY (US);
Abstract
An oil distribution system for supplying lubricating oil to a thrust bearing, the bearing surfaces of an Oldham coupling, and a swing link bearing in a scroll compressor and allocating the oil between the bearings in proper proportion. Oil is pumped from a reservoir in the bottom of the compressor shell upward through a gallery that runs the length of a rotating drive shaft. The oil exits an opening at the top of the drive shaft and is thrown radially outward into a shallow cavity formed in a swing link that is rotatably driven by the shaft. The cavity is generally elongate in shape, so that oil collects in pools at each of its ends as a result of centrifugal force. Each of the two bearings is lubricated by oil that flows upward into the bearings either directly or through a passage from the pools of oil. The shape of the cavity and the position of the gallery opening within the cavity determine the proportion of oil flowing out of the gallery that is supplied to each bearing, insuring that each bearing is properly lubricated.