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:
Nov. 12, 1991
Filed:
Sep. 24, 1990
Applicant:
Inventor:
Martyn Richards, Burton, GB;
Assignee:
Rolls-Royce, plc, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16H / ;
U.S. Cl.
CPC ...
184-612 ; 184 111 ; 74468 ;
Abstract
In an accessory drive unit e.g. as used in a gas turbine engine, some of the gears in a gear train are provided with pockets 20 in which drainage oil is collected on engine shut down. On re-starting of the engine, the collected oil is acted upon by ribs 16 and is flung onto the teeth of the gears so as to provide immediate lubrication, rather than experience a delay until main lubricant supply pressure is increased. Friction and wear on start up is reduced.