Wheel end assembly high-temperature warning system
First Claim
1. In a vehicle having an automatic tire inflation system for providing air to a rotating tire on a wheel end assembly rotatably mounted on bearings on a hollow axle connected to an air pressure supply for supplying air to the inside of the axle, a rotary connection in communication between the tire and air inside of the axle, a high temperature warning system comprising:
- a normally closed valve connected between the inside and the outside of the axle in connection with the air in the axle;
a heat sensitive control connected to and actuating said valve open upon a predetermined temperature;
said control mounted on the axle in a heat exchange relationship to the axle and positioned adjacent said wheel end assembly for measuring the temperature of the wheel end assembly and axle; and
a warning system connected to the air supply for actuation upon opening of the valve.
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Accused Products
Abstract
The present invention is directed to a wheel end assembly having a high temperature warning system for giving a warning in the event that the temperature in the assembly reaches a predetermined value such as caused by hub bearing failure or a brake related failure. In one embodiment the system may be a stand-alone system for installation on any vehicle such as a trailer. In another embodiment the system may be combined with an automatic tire inflation system.
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Citations
6 Claims
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1. In a vehicle having an automatic tire inflation system for providing air to a rotating tire on a wheel end assembly rotatably mounted on bearings on a hollow axle connected to an air pressure supply for supplying air to the inside of the axle, a rotary connection in communication between the tire and air inside of the axle, a high temperature warning system comprising:
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a normally closed valve connected between the inside and the outside of the axle in connection with the air in the axle; a heat sensitive control connected to and actuating said valve open upon a predetermined temperature; said control mounted on the axle in a heat exchange relationship to the axle and positioned adjacent said wheel end assembly for measuring the temperature of the wheel end assembly and axle; and a warning system connected to the air supply for actuation upon opening of the valve. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification