Fluid-pressure and analogous brake systems – Multiple fluid-receiving devices – Multiple motors
Patent
1980-06-02
1982-02-02
Butler, Douglas C.
Fluid-pressure and analogous brake systems
Multiple fluid-receiving devices
Multiple motors
188349, B60T 802, B60T 826
Patent
active
043136427
ABSTRACT:
The control valve includes a pressure sensing piston disposed in a housing bore having a first active surface exposed to pressure of the front wheel brake circuit and a second active surface exposed to pressure of the rear wheel brake circuit, the second active surface being smaller than the first active surface. A stepped piston having an axial bore therein communicating with the rear wheel brake circuit is also disposed in the housing bore with the smaller diameter portion thereof being axially guided in a bore of the sensing piston. The end of the axial bore of the stepped piston in the bore of the sensing piston provide a valve seat and the sensing piston causes a valve closing member to effect a reduction of pressure in the rear wheel brake circuit when a given brake pressure is achieved. A single spring is disposed relative to the two pistons to bias the two pistons away from each other, to establish the switching point for pressure reduction, and to maintain the valve open should the front wheel brake circuit fail.
REFERENCES:
patent: 3606487 (1971-09-01), Kersting
patent: 3614169 (1971-10-01), Bueler
Butler Douglas C.
Hill Alfred C.
IT&T Industries, Inc.
O'Halloran John T.
LandOfFree
Control valve for vehicle brake systems having two brake circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Control valve for vehicle brake systems having two brake circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control valve for vehicle brake systems having two brake circuit will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1818977