Two-arm belt tensioner

Details Two-arm belt tensioner Two-arm belt tensioner

2004-04-01

2008-12-23

King, Bradley (Department: 4165)

Endless belt power transmission systems or components

Means for adjusting belt tension or for shifting belt,...

Guide roll mounted for movement of its axis along arcuate...

C474S117000, C474S135000

Reexamination Certificate

active

07468013

ABSTRACT:
In a belt drive of an internal combustion engine, a two-arm belt tensioner has a fixed tubular supporting portion; a first and a second arm fitted to the tubular supporting portion to rotate about a common hinge axis, and supporting respective idle wheels cooperating with respective branches of the drive belt; and an elastic device for forcing the arms towards each other; the elastic device having a torsionally elastic elongated member extending through the tubular supporting portion, coaxially with the hinge axis, and having respective opposite end portions projecting outwards of the tubular supporting portion; the end portions being fitted with respective end caps, one of which is fitted directly with one of the arms, and houses one end, connected integrally to the other cap, of the other arm.

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patent: 1 420 192 (2004-05-01), None
patent: WO 02/29279 (2002-04-01), None
patent: WO 2004/042253 (2004-05-01), None

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