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:
Jan. 15, 1985
Filed:
May. 31, 1983
Warren G Bopp, Farmington Hills, MI (US);
Eaton Corporation, Cleveland, OH (US);
Abstract
A bypass drive line (27) for a torque converter type automatic transmission (11) in which the bypass drive line includes a viscous coupling (30). The viscous coupling is of a sandwich construction including an annular body member (32) formed of aluminum, an annular cover member (34) of steel secured at its outer periphery (34a) to the outer peripheral portion (32a) of the body member and radially inwardly thereof spaced axially from the body member to define a viscous fluid chamber therebetween, and an annular clutch member (36a) disposed in the chamber and having a central hub portion (36e) adapted to be drivingly connected to the output shaft (16) of the torque converter. Confronting portions (32e, 32f) and (36c, 36d) of the body and clutch members define closely spaced working area for viscously transmitting force from the body member to the clutch member. The drive into the coupling from the housing (22) of the torque converter is through an annular steel clutching surface ( 34f) defined on the side face of the radially outer peripheral portion of the cover member. The body member includes a central hub portion (32d) which is journaled on the central hub portion of the clutch member and the radially inner periphery (34d) of the cover member is sealed to the clutch member in non load-bearing relation so that the entire radial loading of the body member and cover member are carried at the journal between the hub portion of the body member and the clutch member. And a thrust arrangement (42) is provided on the exterior of the coupling. The thrust arrangement include thrust washers 44, 48 which react axial forces at a position radially outward of the journal to inhibit cocking of the body hub on the clutch hub.