Hydraulic power transmission joint
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Jul 23, 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 valve block coupled to a rotor is provided with a drain mechanism that includes a drain pin adapted to open and close a drain hole. The drain pin is incorporated in a drain plug by providing a support by a return spring. The drain pin has an orifice for generating a flow resistance. One end turn portion of the return spring is press fitted into the interior of the drain pin having the orifice, while the other end turn portion of the return spring is press fitted into the interior of a limiter plug having a limiter pin, whereby the drain pin is rotationally positioned to alleviate cavitation noises.
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