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US 10,471,782 B2Granted
Steer axle tire inflation system
AssigneeEqualaire Systems, Inc.
InventorsTim Musgrave, Mark Kevin Hennig
Life of this patent
Estimating the term…
Abstract
A steer axle spindle may have one or more channels formed therein. A rotary union may be mounted to a steer axle wheel end assembly. The rotary union may be sealingly connected to a pressurized fluid source through the channel, and sealingly connected to a vehicle tire.
Claims15
A tire inflation system for a steer-axle wheel end assembly having a steer-axle spindle and a tire, the system comprising
- a pressurized fluid supply;
- the steer-axle spindle pivotably mounted to a steer axle, the steer-axle spindle having an inner face facing the steer axle and having an outer end, the steer-axle spindle forming an axial channel along the central axis of the steer-axle spindle, the axial channel extending from the outer end toward the inner face and in sealed fluid communication with the pressurized fluid supply;
- and
- a rotary union sealingly mounted to the axial channel at the outer end of the steer-axle spindle, the rotary union being in sealed fluid communication with the pressurized fluid supply and with the tire, the rotary union comprising:
- a rotary body being configured to mount to the exterior or interior of a hubcap, or comprising part of a hubcap;
- a first seal circumferentially disposed directly in the axial channel, the first seal being an annular seal;
- a second seal disposed in the rotary body;
- and
- a tubular member sealingly disposed between the first annular seal and the second seal.
6 more elements
Dependencies are inferred from the claim text.