Tire inflation system

摘要

A tire inflation system including an axle housing and a sealing ring disposed on the axle housing. The sealing ring has a conduit formed therethrough. A hub is rotatably disposed on the axle housing. The hub is disposed adjacent the sealing ring and has a conduit formed therethrough which is in fluid communication with a conduit formed through a fastener engaged with the hub. The tire inflation system also includes an inner rotary seal disposed between the sealing ring and the hub and an outer rotary seal disposed between the sealing ring and the hub. The conduit formed through the hub is in fluid communication with the conduit formed through the sealing ring through an area between the inner rotary seal and the outer rotary seal. A bearing seal is disposed between the hub and the axle housing and outboard of the outer rotary seal.

主权项

1. A tire inflation system, comprising:
an axle housing; a sealing ring disposed on the axle housing, the sealing ring having a conduit formed therethrough; a hub rotatably disposed on the axle housing, the hub disposed adjacent the sealing ring and having a conduit formed therethrough which is in fluid communication with a conduit formed through a fastener engaged with the hub; an inner rotary seal disposed between the sealing ring and the hub; an outer rotary seal disposed between the sealing ring and the hub, wherein the conduit formed through the hub is in fluid communication with the conduit formed through the sealing ring through an area between the inner rotary seal and the outer rotary seal; and a bearing seal disposed between the hub and the axle housing and outboard of the outer rotary seal, wherein the inner rotary seal is disposed in a first recess formed in an inner surface of the hub, the outer rotary seal is disposed in a second recess formed in the inner surface of the hub, and the bearing seal is disposed in a third recess formed in the inner surface of the hub.