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:
Aug. 11, 1992
Filed:
Apr. 18, 1991
Laurence L Miller, W. Lafayette, IN (US);
TRW Inc., Lyndhurst, OH (US);
Abstract
A multiple speed fluid motor includes a housing having an inlet port for receiving high pressure fluid and an exhaust port for exhausting low pressure fluid, and a gerotor gear set. An output shaft is supported for rotation relative to the housing. One of the gerotor gears is coupled with the output shaft for rotating the output shaft in response to fluid being supplied to the inlet port. The motor includes fluid passages for conducting fluid to the fluid displacement means. A control valve member is movable to control fluid flow through the fluid passages to control the rotational speed of the output shaft. The control valve member is mounted in a valve chamber defined by a plurality of plates.