Railway automatic brake control valve test unit

Details Railway automatic brake control valve test unit Railway automatic brake control valve test unit

B - Operations, Transporting

60

T

B60T 17/22 (2006.01) B60T 15/42 (2006.01) B60T 17/04 (2006.01)

Patent

CA 2148424

A portable, microprocessor controlled single-car test unit for a railway freight brake control valve for automatically executing pressure manipulations to evaluate the operating conditions of the control valve. The pipe bracket portion is connected to a brake pipe, an auxiliary reservoir, an emergency reservoir, a brake cylinder retaining valve and a brake cylinder each being connected to a respective fluid passageway. The test unit accesses the fluid passageways at access ports, respectively connected to each passageway. Valves are utilized in the test unit to manipulate the pressure in the fluid passageways and pressure transducers measure fluid pressure in the passageways. The pressure transducers are controlled by a computer having a microprocessor connected to an input output device. The computer records and stores each pressure measurement, and calculates and stores the differences between selected pairs of the pressure measurements as well as elapsed time data for the measurements. The data is stored and outputted.

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