Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1993-11-01
1995-02-21
Butler, Douglas C.
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
303 841, 185 67, 267202, B60T 832, F16K 1706
Patent
active
053909933
ABSTRACT:
A pressure control valve is disclosed comprising a valve tappet (1) guided in a valve housing (3) and accommodating a compression spring (4), with a valve closure member (10) on one end of the valve tappet (1) and mating with a valve seat (9) establishing a connection between a pressure supply port (11) that emanates from a pressure fluid source and a pressure return channels (12) once the pressure attains a specific preset desired valve. In order to diminish noise, at least one friction element (2) is in engagement with the valve tappet (1) movable to abut on radial friction surfaces of the valve housing (3) and/or the valve tappet (1).
REFERENCES:
patent: 1001846 (1911-08-01), Harley
patent: 2914085 (1959-11-01), Mercier
patent: 3048188 (1962-08-01), Hunter
patent: 3602340 (1971-08-01), Budzich et al.
patent: 3782412 (1974-01-01), Darash
patent: 3797805 (1974-03-01), Nielsen
patent: 3870077 (1975-03-01), Nakamura
patent: 4481974 (1984-11-01), Schmitt et al.
patent: 5199769 (1993-04-01), Beck et al.
Beck Erhard
David Anton
Kornemann Horst
Weisbrod Helmut
Butler Douglas C.
Lewis J. Gordon
Seitter Robert P.
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