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кератин проф интернет магазин
Немецкая компания керми с нижним подключением
9. Brake system
All models of Infiniti cars are equipped with hydraulic brake system with vacuum strengthening. On forward wheels disk brake mechanisms, on back — drum-type are always established.
All brake mechanisms are equipped with self-regulators. Thus compensation of wear of brake shoes of disk mechanisms is carried out automatically whereas, on drum-type brake mechanisms the special adjusting devices which activation occurs during braking, and also when raising the parking brake are established.
The dual design of the main brake cylinder (GTTs) allows to break a hydraulic path into two, operating independently from each other, a contour (forward and back) (see an illustration the Function chart of a hydraulic path). In default one of the contours, the second continues to work as before, providing adequate braking of the car. Violation of serviceability of functioning of any of contours, naturally, conducts to decrease in efficiency of braking and is accompanied by operation of the corresponding control lamp on an instrument guard (see. The head of System of cooling and heating) when squeezing a pedal of a foot brake.
The back brake contour is equipped with the valve regulator providing correction of hydraulic pressure at change of height of a road gleam of a back axis.
GTTs is established on assembly of the servo-driver of the vacuum amplifier of the brakes, fixed on a back partition of an impellent compartment. From above on the cylinder the big tank of hydraulic liquid equipped with a plastic cover is located. The tank fastens in the cylinder by means of plugs through passage and a cylindrical pin.
As it was already mentioned above, GTTs has the dual design providing functioning of two independent hydraulic contours. Pressure of liquid in each of contours is forced by the individual piston in the main cylinder.
The servo-driver of the vacuum amplifier is fixed on a back partition of an impellent compartment. The amplifier uses depression created in the inlet pipeline for increase of efficiency of functioning of a hydraulic actuator of brake system. From told clearly that the servo-driver functions only at the working engine that it is necessary to consider at car towage with the switched-off engine — resistance of a pedal of a foot brake to squeezing considerably increases, and the brake way increases.
The control lever of the parking brake is located in salon of the car and influences a draft rod to which pair of driving cables (on one on each of brake mechanisms of back wheels is attached). When raising lever cables delay the executive levers attached to assemblies of brake boots in mechanisms of both back wheels. Thus boots get divorced in the parties, nestling on a working surface of drums. On models with disk brake mechanisms of back wheels levers are attached to actuation mechanisms of screw type in cases of supports. Levers influence pistons of supports, forcing blocks to nestle on brake disks.
Function chart of a hydraulic path