Engine unit and straddle type vehicle

Details Engine unit and straddle type vehicle Engine unit and straddle type vehicle

2007-05-29

2011-12-13

Mansen, Michael (Department: 3654)

Endless belt power transmission systems or components

Control for variable input to output speed-ratio

Condition responsive

Reexamination Certificate

active

08075432

ABSTRACT:
In an engine unit of a straddle type vehicle, a V-belt-type continuously variable transmission (CVT) has a secondary sheave shaft62that rotates with a clutch housing of a centrifugal clutch. The secondary sheave shaft is supported in a cantilever fashion via two bearings. The engine unit has a gear that rotates with a clutch boss. Cage-and-roller needle bearings, which are a type of needle bearing, are inserted between the secondary sheave shaft and the gear. In this manner, without enlarging the engine unit, abrasions and deterioration of a bearing inserted between a rotational shaft supported in a cantilever fashion and a body of rotation are prevented.

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Official Communication issued in corresponding European Patent Application No. 07251943, mailed on Jul. 30, 2010.

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