Wheel motor device
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United States of America Patent
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-
Apr 10, 2012
Grant Date -
May 1, 2008
app pub date -
Oct 25, 2007
filing date -
Oct 26, 2006
priority date (Note) -
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status (Latency Note)
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Abstract
There is provided a wheel motor device including a hydraulic motor unit. The hydraulic motor unit includes a hydraulic motor main body, a motor shaft, a motor case and a port block. The port block includes a motor surface to which the motor case is connected, a pump surface to which a pump case surrounding a hydraulic pump main body is detachably connected so as to form a pump space for accommodating the hydraulic pump main body, and a pair of operational fluid passages fluidly connecting between the hydraulic motor main body accommodated in the motor space in a state of being contacted with the motor surface in a sliding manner around its axis line and the hydraulic pump main body accommodated in the pump space in a state of being contacted with the pump surface in a sliding manner around its axis line.
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