Railway rolling stock – Special car bodies – Dumping
Patent
1980-04-03
1983-10-04
Peters, Jr., Joseph F.
Railway rolling stock
Special car bodies
Dumping
105273, 298 18, 298 22P, B60P 116, B61D 902, B61D 906
Patent
active
044072023
ABSTRACT:
A railroad dump car, such as a side dump rail car, uses hydraulic actuators to tilt the dump body to permit unloading of the contents of the dump body. A hydraulic booster pump is connected to the auxiliary air supply of the train. The booster pump converts the relatively low pressure (about 90 psi) air to a high hydraulic pressure (about 3000 psi). In another embodiment, a bidirectional rotary pump driven from the rail car axle pumps the hydraulic fluid. The booster pump (or the bidirectional rotary pump) pumps hydraulic fluid from a hydraulic reservoir to a hydraulic accumulator, which receives the hydraulic fluid and stores the hydraulic fluid under pressure. When the hydraulic accumulator is fully charged, the operator triggers a valve to cause dumping. The valve causes the hydraulic accumulator means to supply the pressurized hydraulic fluid to the hydraulic actuators, which pivot the dump body with respect to the car frame to unload the contents of the dump body.
REFERENCES:
patent: 1960574 (1934-05-01), Cartzdafner
patent: 1990057 (1935-02-01), Anderson
patent: 2143934 (1939-01-01), Burner
patent: 2145881 (1939-02-01), King
patent: 2647471 (1953-08-01), Lunde
patent: 4131070 (1978-12-01), Jonnet
patent: 4240355 (1980-12-01), Puariea
Beltran Howard
Peters Jr. Joseph F.
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