Modulator assemblies for vehicle anti-skid braking systems

Details Modulator assemblies for vehicle anti-skid braking systems Modulator assemblies for vehicle anti-skid braking systems

1980-02-25

1982-09-21

Butler, Douglas C.

Fluid-pressure and analogous brake systems

Speed-controlled

Having a valve system responsive to a wheel lock signal

303116, 303119, B60T 802

Patent

active

043503969

ABSTRACT:
The disclosure concerns an anti-skid brake control system of the kind which senses the presence of skid conditions at a hydraulically braked wheel and then automatically relieves the brake pressure at that wheel by expanding the volume of a chamber connected to the wheel brake. In the system disclosed, a regulator is connected in a high pressure fluid supply line so as to control the rate at which the volume of the chamber is reduced on cessation of the skid conditions, thereby controlling the rate at which the brakes are re-applied. In the particular embodiment described, the regulator comprises a cup-shaped piston reciprocable within a cylinder bore. A first restriction of predetermined size is defined by the end wall of the piston and a second restriction of variable size is formed between a number of radial ports in the bore wall and an annular recess in the outside of the piston, this recess being permanently connected to the inner space of the piston. Fluid flows from the variable restriction to the predetermined restriction and a pressure difference is produced across the predetermined restriction. Any increase in this pressure difference causes the piston to move against the action of a compression spring to restrict the size of the variable restriction, thereby regulating the flow of fluid to a predetermined value.

REFERENCES:
patent: 3645584 (1972-02-01), Leiber et al.
patent: 3661427 (1972-05-01), Hodge
patent: 3752537 (1973-08-01), Ochiai
patent: 3994538 (1976-11-01), Farr
patent: 4033638 (1977-07-01), Bertone et al.

Affiliated with

Also associated with

Rating

Modulator assemblies for vehicle anti-skid braking systems does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Modulator assemblies for vehicle anti-skid braking systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Modulator assemblies for vehicle anti-skid braking systems will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2073408