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:
Jul. 16, 1991
Filed:
Jul. 11, 1989
Bryan N Parsons, Stoney Stanton, GB;
Jaguar Cars Limited, , GB;
Abstract
A hydraulic device has an inner rotor of cylindrical section mounted eccentrically within an outer rotor of tubular section. Angularly spaced axially extending ribs of part-circular cross-section are provided on the inner rotor and correspondingly spaced axial recesses of part-circular cross-section are provided on the opposed surface of the outer rotor, the ribs meshing with the recesses over an arcuate working zone in which a plurality of adjacent ribs engage corresponding recesses, the ribs moving relative to but in engagement with the recesses as they progress through the working zone. A baffle is located between the rotors to provide a seal therebetween outside the working zone and an inlet port is provided to the working zone adjacent the termination thereof relative to the direction of rotation of the rotors while an outlet port is provided adjacent the center of the working zone, the inlet and outlet ports being separated by at least the pitch of the ribs on the rotor.