Wheel motor device

• Main Author: SAKIKAWA SHIGENORI
• Format: Patent
• Language: English
• Published: 10.04.2012
• Subjects: ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES; ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; PERFORMING OPERATIONS; TRANSPORTING; VEHICLES IN GENERAL

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.