US Patent 11777364 Drive device and vehicle

A gear portion of a drive device is connected to a motor shaft. An oil passage through which oil to cool a motor flows includes a first oil passage, a second oil passage, a third oil passage, and a fourth oil passage. The first oil passage connects a gear accommodation portion and a pump accommodation portion. The second oil passage connects the pump accommodation portion and an oil cooler. The third oil passage connects the oil cooler and the fourth oil passage. The fourth oil passage connects the third oil passage and a motor accommodation portion. Each of the first oil passage, the second oil passage, and the third oil passage is in a first housing portion. The fourth oil passage is in a third housing portion.