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. 12, 1990
Filed:
Jun. 04, 1987
Tooji Takemura, Yokohama, JP;
Takashi Ookubo, Yokosuka, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
A torque transmitting assembly comprises a first rotary element including internal cam surfaces, a second rotary element disposed in the first rotary element, the second rotary element including a rotor containing a plurality of radially outwardly opening pressure chambers facing the cam surfaces, and a hydraulic mechanism for transmitting a ratio of the input torque from one of the first rotary element and the second rotary element to the other in response to rotation speed of the second rotary element and also to differential rotation occurring between the first rotary element and the second rotary element. The hydraulic mechanism is rotatable with the second rotary element and includes pistons in the pressure chambers in engagement with the cam surfaces and reciprocable in response to the differential rotation, passages in fluid communication with the pressure chambers through which hydraulic fluid discharged from each of the pressure chambers on the discharge stroke of the associated one of the pistons, and a flow restrictor for restricting flow of the hydraulic fluid discharged from the pressure chambers.