Robert Boschgmbh

Bosch Systemes De Freinage

Bosch Systems De Freinage

Cedric Leboisne

Ulysse Verbo

Jean-Pierre Gautier

Frederic Antherieu

Philippe Richard

Fernando Sacristan

Bruno Berthomieu

Jean-Pierre Michon

Jean-Marc Attard

Jean-Paul Bentz

Fabrice Raimbault

Juan Simon Bacardit

Raphael Medina

Pneumatic brake booster () for a motor vehicle, comprising a moving internal partition () provided with a cup () covered by a sealing diaphragm () connected to the inner periphery of the casing (), of the type in which the booster () is intended to be fastened to a bulkhead () of an associated vehicle by means of tie rods () of axial orientation passing through the casing () of the booster () and through the moving partition (), and of the type in which the cup () has an aperture () associated with each tie rod () that accommodates a sealing ring () which is, on the one hand, fastened to the cup () and which is, on the other hand, slideably mounted on the associated tie rod (), characterized in that the cup () comprises a tubular element () which contains the aperture and which extends at least axially in part around the sealing ring ().

Tie rod-type booster comprising a reinforced sealing ring

A parking brake for a vehicle, including a parking brake unit, an actuating device situated inside the vehicle and operable to transmit an actuation signal to a control unit, a hydraulic circuit of a service brake of the vehicle connected to the parking brake unit, and an actuator and locking device for locking the parking brake in a braking position; the parking brake is actuatable by means of the hydraulic circuit and the actuator is a brake booster of the service brake.

Parking brake for a vehicle with brake booster

A force transmission and amplification device for a brake system comprising a pedal (,) and an output rod (,) for transmitting by way of the output rod (,) an output force (F,) having a higher intensity than an input force (F,) applied to pedal (,). An input rod (,) is secured to the pedal (,) for supplying a primary piston (,) located in a first diameter (D,) of primary cylinder (,) to delimit a primary chamber (,) retaining a fluid. A second piston (,) secured to the output rod (,) is located in a second diameter (D,) of a second cylinder (,) to delimit a secondary chamber (,). The primary chamber (,) is connected to the secondary chamber (,) to immediately supply pressurized fluid which acts on the second piston (,) to develop the output force (F,).

Hydro-mechanical force-transmission device

A pneumatic booster operated by a plunger (,) located in a piston (,) with a rear section (,) which operates a valve (,) to develop a force on the piston (,) to apply a boost force to force-transmission members (,). The plunger (,) has a first section (,) connected to the rear section (,) by a spring (,). The front section (,) and the force-transmission members (,) defining a retention assembly (,) for securing the front section (,) to the piston (,) when a boost force exceeds a predetermined threshold while the plunger (,) is in a maximum actuating position to allow for extended actuation of the booster following a sharp braking action.

Pneumatic-servomotor with force-controlled boosting

A device for the quick assembly and disassembly of an input rod (,) for operating a brake system and a brake pedal. A clasp (,) is secured to the input rod (,) connecting a spindle (,) fixed to the brake pedal. The clasp (,) has a guide yoke (,) which receives a retaining yoke (,) and blocking members (,) which maintain the retaining yoke (,) in a closed configuration with respect to the guide yoke (,). The blocking member comprise at least one lug (,) borne by the retaining yoke (,) which projects toward the guide yoke (,) and opening (,) in the guide yoke (,) which receives the lug (,) with the clasp (,) in moved to a closed configuration. On movement of the clasp (,) toward a closed configuration, parallel cheeks (,) of retaining yoke (,) which are squeezed together elastically expand when lug (,) enters opening (,) to lock the clasp (,) in the closed configuration.

Quick assembling and disassembling device

Master cylinder with hydraulic reaction and selective self-powering

A braking device having a pneumatic booster (,) having a rigid casing (,) defined by a front shell (,) and a rear shell (,). The interior of the rigid casing (,) being separated into a front chanber (,) and a rear chamber (,) by a movable partition (,). The booster (,) is reinforced by a strut (,) with a screw (,) which passes through the front shell (,), movable partition (,) and rear shell (,). The screw (,) has front end (,) and a rear end (,) separated from an intermediate cylindrical section (,). A sleeve (,) which extends from the rear shell (,) receives the second end (,) of the screw (,) and allows the screw (,) to axially slide with respect to the rear shell (,). A stop (,) on the intermediate section (,) prevents the second end (,) from projecting from the rear shell (,) until the first end (,) is rotated into engages the front shell (,) and threads on the second end engage corresponding threads on a support (,) to fix the booster (,) to the support (,).

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Paris, France

Cedric Leboisne