Hydraulic retarder having a fluid filled casing with a rotor operating clutch disposed therein
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United States of America Patent
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Feb 15, 1994
Grant Date -
N/A
app pub date -
Feb 26, 1992
filing date -
Mar 25, 1991
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A hydraulic retarder including a rotor vane fixable to a rotational shaft rotating with vehicle wheels to relatively be unrotatable with respect thereto, a stator vane substantially unrotatable with respect to the vehicle body, and a clutch apparatus for engaging the rotational shaft with and disengaging same from the rotor vane. The clutch apparatus is provided with a plurality of clutch plates which are engaged with the rotational shaft to be axially slidable and alternately provided among a plurality of pressure plates. The rotor vanes, stator vanes and clutch apparatus is accommodated in a casing secured to the vehicle body parts within which an operation fluid is filled. The hydraulic retarder of the invention further includes plungers disposed spaced apart from one another and penetrating through the casing with fluid sealingly and located at an end of the support member. A drive apparatus disposed outside the casing for actuating the clutch apparatus by depressing the plunger into the casing.
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