Patent ID: 8328668

Claim:
A vehicle power transmission device mounted on a vehicle for transmitting power from a power generating source to an axle through a gear train accommodated in a case, comprising: a lubricating pump that is accommodated in the case and which is driven by the power generating source and is capable of supplying a lubricating medium to an element to be lubricated; a lubricating medium storage portion that stores the lubricating medium; an input shaft that receives power from the power generating source; a lowermost gear that is located at a lowest position in the case among gears included in the gear train when the power transmission device is mounted on the vehicle; and which scoops up the lubricating medium in an inner bottom of the case toward a center of the case during normal rotation of the axle without guiding the lubricating medium along an inner wall surface of the case; a partition wall that extends upward from the inner bottom of the case and surrounds a part of an outer periphery of the lowermost gear on a center side of the case, wherein a downstream end of the partition wall where the lubricating medium is scooped up is between the lowermost gear and the input shaft; and a lubrication flow path that guides the lubricating medium scooped up by the lowermost gear and carried by the gear train to a predetermined element to be lubricated.