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:
Dec. 07, 2004
Filed:
Oct. 23, 2002
Scott Grover Aguilar, La Crescenta, CA (US);
Honeywell International, Inc., Morristown, NJ (US);
Abstract
A hydrodynamic thrust bearing of this invention comprises a body having a load-bearing surface comprising an oil supply channel and an oil return channel positioned along respective inside and outside body diameters. A number of thrust pads are positioned along the surface that each include an oil supply groove, positioned adjacent a leading edge/upstream portion of each thrust pad and extending radially a distance from the oil supply channel, and an oil return groove, positioned adjacent a trailing edge/downstream portion of each thrust pad and extending radially a distance from the oil return channel. The oil supply grooves are separate from the oil return grooves, and the thrust pads each comprise a series arrangement of three differently configured land or pad sections. Configured in this manner, oil is provided onto the series of land sections by the oil supply groove and is collected after passing over the series of land sections by the separate oil collection groove. The use of separate oil supply and collection grooves acts to minimize mixing, of input oil with the heated return oil, thereby reducing oil film temperature and increasing bearing thrust load capacity.