Hydraulic power transmission joint
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United States of America Patent
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-
May 7, 2002
Grant Date -
N/A
app pub date -
May 25, 2000
filing date -
May 28, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A torque varying mechanism comprises an accommodation hole that has a relief hole formed in its bottom and that receives a check ball therein. The accommodation hole is configured so as to present a relationship in which the area of flow passage between the accommodation hole and the check ball increases linearly as a function of the amount of displacement of the check ball after opening of the relief hole, after which the flow passage area keeps a unvarying value. A hysteresis characteristic is imposed on a switching point where switching is made between a high torque transmission characteristic and a low torque transmission characteristic relative to an increase and a decrease of the vehicle velocity.
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