| 主权项 |
1. A wheel oil supply device, which is assigned to a wheel of a vehicle, comprising:
an oil supply pathway for supplying oil to a hub bearing, which rotatably supports a hub connected to a disk wheel of said wheel, an oil seal which is interposed between said hub bearing and a region outside of the hub bearing to seal the oil supplied to said hub bearing through said oil supply pathway, and a dust seal which is interposed between said hub bearing and said region outside of the hub bearing to seal a dust which flows from said region outside of the hub bearing to said hub bearing, and an oil guiding pathway which comprises a space that is comparted by said oil seal and said dust seal and a communicating pathway that makes said space communicate with a predetermined discharge region and thereby, when the oil supplied to said hub bearing leaks to said space through said oil seal, guides the oil to said discharge region, and prevents a pressure difference between said hub bearing and said region outside of the hub bearing from generating due to a negative pressure resulting from the rotation of said hub. |
