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:
May. 07, 1991
Filed:
Sep. 21, 1989
Emil Meyer, Petershausen, DE;
Johann Eichinger, Vaterstetten, DE;
Carl Hurth Maschinen- und Zahnradfabrik GmbH & Co., Munich, DE;
Abstract
A friction clutch for use in a gear changing transmission for facilitating a power transmission from a rotating shaft of a working exhaust-gas turbine onto a crankshaft of an internal combustion engine, which friction clutch, depending on the engine and/or turbine speed, automatically closes in the direction of engagement and opens in the direction of disengagement, with the friction members of the clutch being able to be compressed in the direction of engagement against a spring force (cup springs) by a piston of a rotating cylinder-piston-unit provided on the drive side of the clutch, such that a fluid conveyed from an external pump into the cylinder applies a fluid pressure onto the piston in response to rotation (centrifugal force). The engine lubricant is preferably used as the fluid.