Portable single car test device
First Claim
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1. A single car test device for a rail car brake system having a brake pipe with a connector, a brake cylinder and a control valve connected to the brake pipe and brake cylinder, the test device comprising:
- a source port to be connected to a source of pressurized air and a brake pipe port to be connected to the brake pipe connector;
valves selectively interconnecting the ports to each other and atmosphere to perform tests;
a sensor determining pressure at least at the brake pipe port; and
a controller connected to the valves and sensor and including a program performing a brake system leakage test and a plurality of component tests performed subsequent to the brake system leakage test, and after repair or replacement of a failed component, the program restarts with the brake system leakage test.
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Abstract
A single car tester including a housing having a hanger to mount the housing to a car coupler or ladder of the car. Various configurations of valves and sensors are described to perform a single car test. The controller includes a program for uniquely performing the required tests.
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Citations
21 Claims
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1. A single car test device for a rail car brake system having a brake pipe with a connector, a brake cylinder and a control valve connected to the brake pipe and brake cylinder, the test device comprising:
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a source port to be connected to a source of pressurized air and a brake pipe port to be connected to the brake pipe connector;
valves selectively interconnecting the ports to each other and atmosphere to perform tests;
a sensor determining pressure at least at the brake pipe port; and
a controller connected to the valves and sensor and including a program performing a brake system leakage test and a plurality of component tests performed subsequent to the brake system leakage test, and after repair or replacement of a failed component, the program restarts with the brake system leakage test. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A single car test device for a rail car brake system having a brake pipe with a connector, a brake cylinder and a control valve connected to the brake pipe and brake cylinder, the test device comprising:
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a source port to be connected to a source of pressurized air and a brake pipe port to be connected to the brake pipe connector;
valves selectively interconnecting the ports to each other and atmosphere to perform tests;
a sensor determining pressure at least at the brake pipe port;
a display;
operator input device;
a controller connected to the display, input device, valves and sensor and including a program performing a plurality of component tests which form a single car test as a function of inputs from the operator in response to displayed information; and
the program requesting, during initialization, whether the operator wants to continue the last car test, if the input is no, the program performs the plurality of component tests, and if the answer is yes, the program determines at what point the last car test stopped and restarts the component tests as a function of the stopped point. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification