An adjuster for a strut located between first and second friction members for a drum brake. The strut has a shaft that is free to rotate in a first end member and threaded into the second end member. A lever pivots during a brake application and engages a ratchet wheel on the shaft to rotates the shaft and expand the strut to maintain a minimum running clearance with respect to a rotatable member. A bi-metal coil strip that is fixed to the strut has a free end that is aligned with the lever arm....

A hydrodynamic brake which comprises a stator and a rotor, arranged to form a toroidal space, and blades on the rotor and the stator extend into the space. A medium which is intended to be supplied to the toroidal space to effect a braking action. A first pipe circuit for transferring the medium from an outlet from the toroidal space to an inlet to the toroidal space. A second pipe circuit for transferring the medium from a storage space to the toroidal space. The second pipe circuit transfers t...

When a voltage supply to a motor is switched to OFF from ON, a brake fluid pressure control apparatus determines whether a duration of time required for a terminal voltage of the motor to reach a first threshold is shorter than a first predetermined duration of time, and whether a duration of time required for a terminal voltage of the motor to reach a second threshold lower than the first threshold is shorter than a second predetermined duration of time longer than the first predetermined durat...

A drum brake (1) having a rotatably journalled drum (2) and means for adjusting the torque applied to the drum (2) has several peripherally-extending take-up slots (4) for filaments (5) with the slots being spaced from each other in the direction of the drum axis (X). With such an arrangement, a plurality of filaments can be adjusted to constant filament tensions simultaneously.

A brake hose is made by laminating an inner tube rubber layer, lower yarn layer, intermediate rubber layer, upper yarn layer, and cover rubber layer. The rubber material of the inner tube rubber layer and intermediate rubber layer is a blend material in which 40 to 80 wt % is IIR and the remainder is EPDM. The upper yarn is PVA, and the upper yarn is PET, where the tensile strength per unit decitex is at least 6.5 g, and the 2.7 g elongation is 2.6.+-.1%. The brake hose has better water penetrat...

A brake actuator includes an annular housing (10b) having first and second opposite radial faces (A and B). Cavities are formed in the housing (10b), some opening onto face (A) and some onto radial face (B). Two pistons (16) are disposed in each of the cavities and are movable under the influence of fluid pressure exerted from within the respective cavities to a braking position where the pistons (16) extend axially away from the cavity. The piston (16) bear against a backing plate of respective...

An object of the invention is to provide a brake apparatus which can facilitate slope starting and slope climbing and which can be produced small in size and light in weight. In addition, another object of the invention is to provide a brake apparatus which can obtain a stable brake force under any conditions including running in the rain.The invention provides a brake apparatus in which a restriction is imposed on the rotation of a wheel (101) via a brake drum (3) provided on a rotational shaft...

The invention relates to a disk brake, in particular for utility vehicles, comprising a brake caliper, which extends over a brake disk, an application device located in the brake caliper for applying brake pads on both sides of the brake disk in the direction of the latter, in addition to at least one adjusting system located in the brake caliper for compensating wear and tear on the brake pad and or disk, by adjusting the distance between the brake pad and the brake disk. The adjusting system h...

A brake device comprises a brake cylinder, a reservoir, a pump, a master cylinder, and a pulsation-reduction device. The reservoir serves to accumulate a working liquid discharged from the brake cylinder. The pump serves to pump the working liquid accumulated within the reservoir. The master cylinder serves to receive the working liquid discharged from the pump. The pulsation-reduction device comprises a valve device disposed in a communication channel connecting the downstream side of the pump ...

A disc brake includes a piston seal made of rubber that is shaped to fit into a seal groove on the inner surface of a cylinder of a caliper for a brake piston. To prevent braking effectiveness from being impaired, even if the temperature of a caliper rises in a disc brake for a vehicle, the piston seal and/or the seal groove is shaped to control and contain the effects of thermal expansion due to the heat of the disc brake. The clearance between the piston seal and the seal groove is removed and...