Bendix Europe Services Techniques

Bendix France

Jean-Michel Pichon

Philippe Georges Castel

Philippe Bourlon

Patrice Moinard

The invention relates to a hydraulic device for braking the wheels of a vehicle, especially for wheel anti-lock and/or anti-slip functions, comprising, between a chamber of a master cylinder and at least one brake motor, a plurality of solenoid valves (36) and a hydraulic pump driven by an electric motor including a rotor (10) arranged between two bearings (12, 14) and enclosed in a cylindrical sleeve (20) made of metallic material, the rotor driving in rotation an eccentric cam (24) imparting an alternating translational movement to radial pistons (26), the delivery outlet of the pump being connected to the solenoid valves (36) via hydraulic slides by way of fluid circulation channels (32, 34). According to the invention, the sleeve (20), in which the rotor is accommodated, is enclosed in a housing (30) made of non-magnetic material. The fluid circulation channels (32, 34) and the solenoid valves (36) extend in the housing.

Integrated pressure generating and control device

A hydraulically controlled brake system for a motor vehicle, comprising a master cylinder, a corrector intended for reducing the pressure prevailing in the rear-wheel brakes in relation to that prevailing in the front wheels, and a wheel anti-lock device. The corrector is of the type with a controlled shift of the cut-off point. During the operation of the anti-lock device, the cut-off point has a specific value higher than that of a corrector equipping the vehicle without a wheel anti-lock device, while it is substantially equal to the latter in the event of a failure of the device.

Hydraulically controlled brake system and associated corrector

The hydraulic braking circuit is fitted with a master brake cylinder controlled by a brake pedal and with a wheel-antilock device, for a motor vehicle. This device comprises a pressure generator (20), which is started up at the beginning of an antilock-braking sequence, for selectively supplying at least one wheel brake (5, 6), and a member for automatically isolating the wheel brake (5, 6) from the master brake cylinder (1) when the pressure generator is started up by bringing the wheel brake into communication with means for storing the brake fluid, means are provided for limiting the pressure of the hydraulic fluid provided by the pressure generator to a value which is function of the jamming pressure.

Hydraulic braking circuit fitted with a wheel-antilock device for a

The solenoid valve body (3), which is firmly fixed to a transverse connection terminal block (4), comprises a through core (5, 6) whose ends (7, 8) project on each side of the body (3), the latter being positioned and held in an internal cavity (2) of a casing member (1) consisting of a single piece by an assembling member (16) which cooperates with one end (8) of the core and holds the other end (7) of the core so that it bears against an internal bearing surface (15) of the cavity (2), the terminal block (4) extending sealingly through an opening (9) of corresponding dimensions which is formed in a lateral wall (10) of the casing member (1).

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Messy, France

Jean-Michel Pichon