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. 09, 1992
Filed:
Oct. 28, 1991
Applicant:
Inventor:
Stephen G Murray, Indianapolis, IN (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01M / ;
U.S. Cl.
CPC ...
184-611 ; 60 3908 ; 464-7 ; 464 16 ;
Abstract
An accessory drive spline lubrication system for a turbine engine reduction gearbox prevents the continuing loss of engine oil resulting from an ineffective seal between an engine drive shaft and an accessory driven shaft. The spline area is provided with oil by an annular reservoir which is replenished only on startup of the engine. Oil is shot into the annular reservoir within the drive shaft through an orifice in the rotating drive shaft. At operating speeds, the drive shaft rotates sufficiently fast relative to the velocity at which the oil approaches the drive shaft to prevent the oil from entering the drive shaft.