| 摘要 |
<p>A vehicle drive axle tire inflation device for providing fluid communication between a vehicle fluid pressure source and the tire of a vehicle wheel. The device includes a wheel hub which has a hub splined member, and a drive shaft which has a mating drive splined member configured to mesh with the hub splined member and drive the wheel hub. One of the hub splined member and drive splined member includes a splined shaft and the other includes a mating splined coupling collar. The splined coupling collar includes at least one opening bored through its side wall. The device further includes a static sealed housing disposed about the coupling collar, by means of a rotary joint, forming a sealed chamber about the coupling collar. The sealed chamber is coupled to and in fluid communication with the at least one opening of the coupling collar and with the fluid pressure source. The device further includes at least one conduit defined by a gap at an interface between the coupling collar and the splined shaft, running there along in between and being in fluid communication with the opening and with the tire of the wheel, and is configured to communicate a fluid between the sealed chamber and the tire.</p> |
