Alliedsignal Europe Services Techniques

Bendix Europe Services Techniques

Bosch Systems De Freinage

Miguel Perez Revilla

Ulysse Verbo

Jean Pierre Gautier

Roland Levrai

Flavio Cobianchi

Jean-Pierre Gautier

Philippe Georges Castel

Guy Meynier

Bernard Tripier

Master cylinder with improved safety

Boosted braking device with simplified automatic control

Pneumatic brake booster

Pneumatic servo with silent operation

Assembly of a pneumatic brake booster and of a master cylinder

Pneumatic booster

Valve type control device for a pneumatic booster

Pedal device for a motor vehicle, particularly for a brake system

Booster with a porous bellows forming a filter

Force transmission device for a booster with jump adjustment

This brake-booster device comprises a pneumatic brake-booster (1) associated with a master cylinder (2). The booster comprises a movable pneumatic piston (5) bearing a valve (7) and functions according to a hydraulic reaction principle, the hydraulic piston (11) of the master cylinder comprising in fact a hollow movable cylinder (13) receiving a boost force, and a secondary hydraulic piston receiving an input force, these two forces constituting the total actuation force. A helical spring (22), exerting an adjustable resilient force, is disposed between the secondary hydraulic piston and the movable cylinder so as to permit the adjustment of the non-zero minimal value of the actuation force.

Brake-booster with hydraulic reaction and adjustable kick

This boosted brake device comprises a pneumatic brake booster (1) associated with a master cylinder (2), the booster operating according to a hydraulic reaction principle and comprising a movable pneumatic piston (5) carrying a control valve (7) actuated by a rod (8), as well as a partition (4) which can move under the effect of a pressure difference and which develops a boost force. The movable wall (4) is mounted slidingly with respect to the pneumatic piston (5) in order to act early on the master cylinder. The device of the invention allows greater braking for small values of the travel of the control rod.

Booster brake device with concealed travel

Brake-booster device with slowed hydraulic reaction

Brake booster

Growing community of inventors

Argenteuil, France

Miguel Perez Revilla