Motorcycle cam drive tensioner

Details Motorcycle cam drive tensioner Motorcycle cam drive tensioner

1998-07-24

2000-09-05

Argenbright, Terry M.

Internal-combustion engines

Poppet valve operating mechanism

Camshaft drive means

267155, 267179, 474111, F16H 708

Patent

active

061127124

ABSTRACT:
A motorcycle engine comprising an engine housing, a crankshaft mounted for rotation within the housing, a camshaft mounted for rotation within the housing, a flexible element (e.g., a chain) coupling the camshaft to the crankshaft, and a tensioner mounted adjacent the flexible element. The tensioner includes a support member, a shoe made of a polyimide polymer (e.g., Vespel), and a biasing member biasing the support member so that the shoe is in contact with the flexible element. The biasing member is made from a wire having a quadrangular (e.g., square) cross section. Preferably, the camshaft is supported by a cam support plate, and the support member is pivotally mounted to the cam support plate.

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patent: 5799931 (1998-09-01), Kish
patent: 5899181 (1999-05-01), Kurata et al.
Harley-Davidson, Inc. 1993 and 1994 1340cc Models Parts Catalog-p. 58.

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