Vehicle retarders

Details Vehicle retarders Vehicle retarders

1972-04-17

1976-06-01

Halvosa, George E. A.

Brakes

Elements

Cooling and lubricating

188264P, 188264E, 188271, 192113B, F16D 65853

Patent

active

039602494

ABSTRACT:
In a vehicle retarder system having a retarder with discs working in oil which is continuously circulated by a pump, a tapping is taken from the oil circuit upstream of a variable but never wholly closed valve to supply oil to an actuator of the retarder. When retardation is required, the valve is partly closed to increase the pressure in the tapping and so to actuate the retarder, while the flow of cooling oil through the retarder continues.

REFERENCES:
patent: 1723032 (1929-08-01), Harrington
patent: 2837192 (1958-06-01), Dunkelow
patent: 2964137 (1960-12-01), Luedtke et al.
patent: 3259216 (1966-07-01), Klaus et al.

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