Booster and brake control device fitted with this booster

• Main Authors: VERBO ULYSSE, RICHARD PHILIPPE, MALIGNE JEANARLES
• Format: Patent
• Language: English
• Published: 16.03.2010
• Subjects: ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; BLASTING; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR; FLUID-PRESSURE ACTUATORS; FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS; HEATING; HYDRAULICS OR PNEUMATICS IN GENERAL; LIGHTING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OFVEHICLES; SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; TRANSPORTING; VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES; VEHICLES IN GENERAL; WEAPONS

A device including a master cylinder driven by a control member, an enclosure for a pneumatic booster having a rear chamber separated from a front chamber by a piston, first and second balancing valve elements place the rear chamber in communication with the front chamber, first, second and third intake valve elements place the rear chamber in communication with a pneumatic pressure source, and a tubular support. The balancing valve elements are carried by a balancing part of the support and the pneumatic piston while the intake valve elements are carried by the first part of the control member, an intake part of the support and a second part of the control member. The first and second parts of the control member are connected through a spring arrangement for adjusting the relative axial position thereof as a function of the power of the force applied to the control member.