Результаты (
английский) 3:
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brakes are used to slow or stop the car where it is necessary. it is one of the "most important mechanisms of the car and its proper performance and the safety of
the other depends. car brakes can be divided into two types, namely: drum *
brakes and disc brakes. the drum * type may be either a band or a shoe brake brake.
depending on their functions, the automobile has foot brakes and hand brakes.(parking brakes). according to their mode of operation, the brakes are classified as: hydraulic
mechanical brakes, brakes, airbrakes, electric brakes. brakes are controlled by the brake pedal
.
the braking systems in use today are hydraulic. this system consists of a
master cylinder mounted on the car frame and wheel cylinders. when the driver pushes down on the brake
pedal,it forces the piston to move in the master cylinder
and brake fluid is delivered from the 11 to the wheel cylinders. the piston movement
causes brake shoes to move and the brakes are applied (the brake shoes are pressed
against the brake drums).
the air brake uses compressed air to apply the force to the braking shoes brake
.
electric brakes use electromagnets to provide the braking effort against the brake shoes
.
formerly brakes were applied only to the two rear wheels, and now all cars
are equipped with wheels and brakes. today many improvements are being made in brakes
.
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