Belt transmission
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United States of America Patent
Stats
-
Sep 9, 1997
Grant Date -
N/A
app pub date -
Aug 8, 1995
filing date -
Aug 12, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a belt transmission device for preventing a slip of a belt, the belt is wound between a crank pulley of an engine and an alternator pulley on an alternator shaft connected to an alternator as an auxiliary for making belt transmission. The alternator pulley is attached to the alternator shaft through a one-way clutch for connecting the alternator pulley and the alternator shaft only at the time of increase in angular velocity of a crank shaft. A centrifugal clutch which becomes engaged by the increase in centrifugal force accompanied with rotation of the alternator shaft is arranged in parallel with the one-way clutch. When the angular velocity is small, the centrifugal clutch is disconnected but only the one-way clutch is connected. When the angular velocity becomes larger than an allowable frequency of the one-way clutch, the centrifugal clutch operates to block the function of the one-way clutch.
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