Variable pressure ratio valve for vehicle braking system having

Details Variable pressure ratio valve for vehicle braking system having Variable pressure ratio valve for vehicle braking system having

1981-09-30

1984-08-21

Butler, Douglas C.

Fluid-pressure and analogous brake systems

Load control

Responsive to fluid pressure spring

303 40, B60T 818, B60T 1520

Patent

active

044666721

ABSTRACT:
A variable load valve for a vehicle braking system has a variable area ratio assembly the effective area ratio of which changes to tend to counteract unbalance of pressures between an input port and an output port and a double valve assembly which is moveable by a load dependent mechanism relative to the variable area ratio assembly, the double valve being arranged in the manner of a relay valve between the output port and a supply port or a vent port to relay pressure from the supply port to the output port in accordance with the magnitude pressure at the input port and the position setting of the double valve relative to the variable area ratio assembly. By provision of a further pressure responsive device a check valve and a further port the valve is adapted also to perform the function of a relay emergency valve.

REFERENCES:
patent: 3671087 (1972-06-01), Pekrul
patent: 3937975 (1976-02-01), Yanagawa et al.
patent: 4236761 (1980-12-01), Page

Affiliated with

Also associated with

Rating

Variable pressure ratio valve for vehicle braking system having does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Variable pressure ratio valve for vehicle braking system having , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variable pressure ratio valve for vehicle braking system having will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1936639