Hot bearing simulator
First Claim
1. An apparatus for dynamically simulating the presence of a hot bearing on railroad rolling stock in order to verify the operation of hot box detectors comprising:
- a moveable carriage having at least a first axle;
left heater means associated with said first axle for simulating a hot bearing on the left side of said first axle;
right heater means associated with said first axle for simulating a hot bearing on the right side of said first axle;
means for sensing the ambient temperature; and
means for controlling the temperature of each heater means to first predetermined temperature above ambient.
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Accused Products
Abstract
A hot bearing simulator is provided for verifying the proper operation of hot box detectors in a dynamic fashion. The hot bearing simulator employs a temperature controller and heater means associated with various axles of a rolling carriage. The heaters are adjusted such that a hot box detector will be verified to determine if it is able to sense when the absolute temperature of left or right wheel bearings exceeds a first predetermined temperature or, alternatively, when the difference in temperature between a left and right wheel bearing differ by a second predetermined amount.
11 Citations
14 Claims
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1. An apparatus for dynamically simulating the presence of a hot bearing on railroad rolling stock in order to verify the operation of hot box detectors comprising:
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a moveable carriage having at least a first axle; left heater means associated with said first axle for simulating a hot bearing on the left side of said first axle; right heater means associated with said first axle for simulating a hot bearing on the right side of said first axle; means for sensing the ambient temperature; and means for controlling the temperature of each heater means to first predetermined temperature above ambient. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification