Vehicle driving device

A vehicle driving device comprising:

• a rotation shaft disposed on an outer periphery of a pump connecting shaft member configured to be driven by an engine;
• a motor disposed on an outer periphery of the rotation shaft;
• a drive case having an end wall extending along an end surface of the motor, a central portion of the end wall through which the pump connecting shaft member penetrates;
• a rotation detecting sensor having a sensor rotor configured to rotate integrally with a motor rotor of the motor and a sensor stator which is fixed to an inner surface of the end wall by a stator fastener penetrating through the end wall in order to detect a rotation of the sensor rotor;
• and
• an oil pump comprising:
• a pump rotor disposed within a pump chamber formed on an outer surface of the end wall and configured to be driven by the pump connecting shaft member;
• an oil pump cover joined to a joining surface formed on the outer surface of the end wall by fastening a cover fastener to a cover screw hole arranged in the joining surface, in order to make the pump chamber into a closed space;
• and
• a seal member formed in an annular shape to surround an outer periphery of the pump chamber and disposed between the joining surface and the oil pump cover,
• wherein the cover screw hole is formed into a shape opened only to the outside of the drive case and disposed on the joining surface outside of the seal member, and a through hole through which the stator fastener is inserted, is disposed on the joining surface inside of the seal member.