Retarders suitable for wagon speed control

Details Retarders suitable for wagon speed control Retarders suitable for wagon speed control

1986-02-19

1988-01-26

Kashnikow, Andres

Brakes

Vehicle

Railway

104 262, 188280, B61K 702, F16F 949, B61B 100

Patent

active

047211890

ABSTRACT:
A retarder, suitable when mounted in association with a rail of a railway track for reducing the speed of a wagon rolling along the track, includes an hydraulic unit which comprises a hollow member, a piston slidably housed in that member, and a piston rod. A portion of the hydraulic unit is, for retardation of the wagon, disposed in the path of a wagon wheel. When that portion is engaged, directly or indirectly, by a wheel it is deflected by, and out of the path of, the wheel to permit the wheel to pass the retarder. The ratio of the diameter of the piston to the diameter of the piston rod is in the range 2.80:1 to 6.00:1 and the ratio of the diameter of the piston to the length of stroke of the hydraulic unit is in the range 0.53:1 to 1.20:1.

REFERENCES:
patent: 3542212 (1970-11-01), Daugherty
patent: 3637052 (1972-01-01), Bick
patent: 4474271 (1984-10-01), Molders et al.

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