Fluid-pressure and analogous brake systems – Load control – Responsive to fluid pressure spring
Patent
1982-11-19
1983-10-25
Butler, Douglas C.
Fluid-pressure and analogous brake systems
Load control
Responsive to fluid pressure spring
188345, 188349, 303 6C, 74474, B60T 800, B60T 818
Patent
active
044114770
ABSTRACT:
There are known dual-circuit pressure control valves including a pressure control valve having a stepped piston for each of the dual brake circuits with each of the stepped pistons being subjected to a common control force by a circular compensation member. This known device is, however, insecure in its operation and expensive to manufacture due to the material used and the construction of the parts. These disadvantages are overcome in accordance with the present invention by providing a compensation member in the form of a solid of revolution whose radius of curvature is considerably smaller than the radius of curvature of the supporting surface. The control pistons are disposed in a V-shaped with respect to the compensation member.
REFERENCES:
patent: 3817584 (1974-06-01), Huston et al.
patent: 4101176 (1978-07-01), Carre et al.
patent: 4159853 (1979-07-01), Oberthuer et al.
patent: 4299426 (1981-11-01), Hales et al.
Butler Douglas C.
Chaban Marvin M.
IT&T Industries, Inc.
Raden James B.
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