Railway manual brake control valve test unit

Details Railway manual brake control valve test unit Railway manual brake control valve test unit

1996-02-07

1997-12-09

Graham, Matthew C.

Fluid-pressure and analogous brake systems

Multiple systems

Fluid pressure and electric

303 28, 303 60, 303 82, B60T 1134

Patent

active

056952589

ABSTRACT:
A portable, single-car test unit for a railway freight brake control valve for manually 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 gauges measure fluid pressure in the passageways. An operator records 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.

REFERENCES:
patent: 5509727 (1996-04-01), Hart et al.

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