Fluid-pressure and analogous brake systems – Multiple control – Fluid and electric
Patent
1985-07-25
1986-06-03
Stoner, Jr., Bruce H.
Fluid-pressure and analogous brake systems
Multiple control
Fluid and electric
303 86, 188348, 188151A, B60T 1370
Patent
active
045925976
ABSTRACT:
Hydraulic vehicle brake comprising a hydraulic accumulator (1), a brake valve adjustment device (4) supplied thereby, and a brake pressure line section (7) to the brake cylinders attached to the latter via an emergency brake valve (6). In the emergency braking position of the emergency brake valve, this connection is broken, and the brake pressure line section is directly connected to the hydraulic accumulator via a nozzle (10) which is bridged by a cylinder (13) in which a piston is sealingly displaceable. A spring (17) biases the piston in the displacement direction to the accumulator side end connection (11) of the cylinder. During emergency braking, the piston (14) first forces an amount of hydraulic medium sufficient for brake application out of the brake cylinder side chamber (16) of the cylinder (13). This is followed by a damped increase in brake pressure through additional supply of hydraulic medium from the hydraulic accumulator (1) through the nozzle (10) into the brake cylinders. The brake assures rapid brake application during emergency braking, with subsequent damped brake pressure increase, so that shocks and jolts resulting from emergency braking are kept within acceptable limits.
REFERENCES:
patent: 2423204 (1947-07-01), Rockwell
patent: 2957659 (1960-10-01), Yarber
patent: 3275383 (1966-09-01), Baechtel
patent: 3532391 (1970-10-01), Klein
patent: 3893544 (1975-07-01), Means
Hommen Winfried
Stauble Georg
Wieser Tiberius
Gilday Michael P.
Knorr-Bremse GmbH
Stoner Jr. Bruce H.
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