Hub cap filter for tire inflation system
First Claim
Patent Images
1. A wheel end assembly for a vehicle tire inflation system comprising:
- a wheel hub rotatably supported on an axle member having an air supply conduit;
a hub cap mounted for rotation with said wheel hub and having a passageway for conducting an air supply through said hub cap, said passageway having an inlet in communication with said air supply conduit and an outlet;
a filter mounted within said passageway between said inlet and said outlet for removing debris from the air supply; and
at least one pneumatic tire mounted for rotation with said wheel hub and having a tire inlet for receiving an air supply from said outlet of said hub cap.
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Abstract
A vehicle tire inflation system includes an axle assembly with an axle housing having an air supply conduit. Air is provided to the air supply conduit from an air tank mounted on the vehicle. The axle includes least one wheel hub rotatably supported on the axle housing by bearings. A hub cap is mounted at one end of the wheel hub and has an air passageway for conducting an air supply through the hub cap to a tire. A filter is installed within the passageway to remove any debris from the air supply.
43 Citations
14 Claims
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1. A wheel end assembly for a vehicle tire inflation system comprising:
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a wheel hub rotatably supported on an axle member having an air supply conduit;
a hub cap mounted for rotation with said wheel hub and having a passageway for conducting an air supply through said hub cap, said passageway having an inlet in communication with said air supply conduit and an outlet;
a filter mounted within said passageway between said inlet and said outlet for removing debris from the air supply; and
at least one pneumatic tire mounted for rotation with said wheel hub and having a tire inlet for receiving an air supply from said outlet of said hub cap. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A vehicle axle assembly for use with a tire inflation system comprising:
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an axle housing having an air supply conduit;
at least one wheel hub rotatably supported on said axle housing by bearings;
a hub cap mounted at one end of said wheel hub and having an inner wall with an air inlet in communication with said air supply conduit, an outer wall with an air outlet, and a flange positioned between said inner and outer walls;
a filter mounted between said inner wall and said flange for removing debris from the air supply before exiting from said outlet; and
at least one pneumatic tire mounted for rotation with said wheel hub for receiving a purified air supply from said outlet. - View Dependent Claims (8, 9, 10)
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11. A hub cap for a wheel end in a tire inflation system comprising:
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a main body having an inner wall, an outer wall, and a flange mounted between said inner and outer walls;
a circumferential lip having a mounting portion for attaching the hub cap to a wheel end component;
a side wall extending from said outer wall to said circumferential lip to form an enclosed inner space between said inner and outer walls;
an air passage having in inlet formed within said inner wall and an outlet formed within said outer wall for conducting an air supply through said body; and
a filter mounted between said inner wall and said flange for removing debris from the air supply before exiting from said outlet. - View Dependent Claims (12, 13, 14)
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Specification