HUB CAP ASSEMBLY AND A WHEEL END ASSEMBLY FOR A TIRE INFLATION SYSTEM

摘要

A wheel end assembly includes a spindle having a passage formed therein. The wheel end assembly also includes a hub cap assembly. The hub cap assembly has an inner housing and an outer housing. The inner housing and outer housing are in fluid communication via an air passage. An air spindle has an inboard portion and an outboard portion. The inboard portion is disposed in the spindle and the outboard portion is disposed in the inner housing. Also, the air spindle has a fluid passage. The fluid passage is in fluid communication with the passage formed in the spindle and the air passage formed in the hub cap assembly. A rotary air seal is disposed around the air spindle. A rotary oil seal is disposed around the air spindle and is spaced apart from the rotary air seal.

主权项

1. A wheel end assembly for a tire inflation system, comprising:
a spindle having a passage formed therein; a hub cap assembly having an inner housing and an outer housing, the inner housing and outer housing being in fluid communication via an air passage; an air spindle having an inboard portion disposed in the spindle and an outboard portion disposed in the inner housing, the air spindle having a fluid passage in fluid communication with the passage formed in the spindle and the air passage formed in the hub cap assembly; a rotary air seal disposed around the air spindle; and a rotary oil seal disposed around the air spindle and spaced apart from the rotary air seal.