| 摘要 |
A tire inflation system utilizes compressed air directed through the axle (12), a rotary union seal oil/bearing cap, and a rim assembly (34) which allows the tire(s) to be inflated while mounted to the axle. The rim (36) of the rim assembly is mounted to the rotor of the axle and includes integral air bores for distributing incoming compressed air to tire inflation lines for both the inner and outer tires of a dual tire rim of a tractor-trailer. Compressed air, preferably from an on-board reservoir, flows through a regulator and into a bore (18) in the axle. The axle bore (18) is in communication with a rotary union seal or bearing cap threadedly coupled to the end of the axle. The bearing cap includes a bore that is in fluid communication with the axle bore and the integral air bores of the rim. The integral air bores of the rim terminate in quick connects (76, 82) to which are coupled tire air distribution lines.
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