Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1980-08-14
1982-10-19
Butler, Douglas C.
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
303 10, B60T 802
Patent
active
043547150
ABSTRACT:
An hydraulic anti-skid system incorporates a pump having a piston assembly. The piston assembly comprises a pump plunger which is reciprocable in a bore of a drive mechanism, a signal piston coupled to the pump plunger, and a spring for urging the pump plunger out of engagement with the drive mechanism. The signal piston has a first area which is exposed to the pressure from a master cylinder or the brake when the brake is applied to urge the signal piston in a direction such that the pump plunger can engage with the drive mechanism. A dump valve is provided for controlling fluid in a stop chamber to which the piston assembly is exposed at least after the brake has been applied. The dump valve is normally closed to trap fluid in the stop chamber in order to hold the piston assembly in a retracted position in which the pump plunger is disengaged from the drive mechanism, and the dump valve is movable into an open position in response to the skid signal to release fluid from the stop chamber whereafter the pump plunger can engage with the drive mechanism.
REFERENCES:
patent: 3276822 (1966-10-01), Lister et al.
patent: 3524684 (1970-08-01), Skoyles
patent: 3756666 (1973-09-01), Leiber
patent: 3829166 (1974-08-01), Menar et al.
patent: 3980346 (1976-09-01), Leiber
patent: 4033637 (1977-07-01), Leiber
patent: 4046427 (1977-09-01), Baynes et al.
patent: 4154326 (1979-05-01), Wolf
Farr Glyn P. R.
Mortimer Ivan
Butler Douglas C.
Lucas Industries Limited
LandOfFree
Hydraulic anti-skid braking systems for vehicles does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hydraulic anti-skid braking systems for vehicles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydraulic anti-skid braking systems for vehicles will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1336216