| 摘要 |
PROBLEM TO BE SOLVED: To integrally cast a pump chamber of an electric oil pump and a transmission case in a space near a differential device of a hydraulic control valve at a lower part of the case.SOLUTION: A transmission case includes a transmission mechanism storage part 121 for storing a transmission mechanism of a continuously variable transmission, a differential gear storage part 122 which covers the outside of a differential gear having an output shaft adjacent and parallel to each shaft of the transmission mechanism and which is arranged to be displaced to one end side in an axial direction with respect to the transmission mechanism storage part, a valve unit installation part 132a arranged in a housing lower part being a lower position when installed in a vehicle, a tubular electric oil pump chamber 50 arranged in a recessed part formed on an outward part of a lateral surface of the differential gear storage part 122 owing to a displacement in such a way that it is placed at a position under the output shaft and adjacent to the valve unit installation part and its axis line is oriented toward a direction intersecting with the axial direction, and a groove for casting an axial rib 60 extending in an axis line direction on the outer peripheral surface at a junction of a first mold M1 forming an outer peripheral surface of the electric oil pump chamber 50 and a second mold M2. |
