Power transmission apparatus

A power transmission apparatus of a vehicle, the vehicle including an engine and a motor as a driving power source, the power transmission apparatus comprising:

• an input shaft into which power from the engine is inputted;
• a brake mechanism arranged around the input shaft, the brake mechanism including a stationary race and a rotary race that are adjacently arranged in an axial direction of the input shaft, the rotary race configured to rotate along with rotation of the motor;
• an oil pump configured to supply lubricating oil to the brake mechanism, the oil pump configured to be driven by rotation of the input shaft;
• a housing case housing the input shaft, the brake mechanism, and the oil pump inside the housing case;
• a center support disposed between an inner surface of the housing case and the input shaft in the housing case, the center support configured to support the input shaft relative to the housing case;
• a lubricating oil reservoir disposed in a lubrication passage of the lubricating oil inside the housing case;
• and
• an oil passage communicating the lubricating oil reservoir with the rotary race of the brake mechanism such that the lubricating oil reserved in the lubricating oil reservoir is supplied into the brake mechanism.