Chery S11 / Chery QQ. Manual — part 125

Brake Master Cylinder Structure

Tandem brake master cylinder

Primary piston

Second piston

Rubber piston cup

Reservoir

Liquid lever sensor

RR/LF brake cylinders

RF/LR brake cylinders

Piston cup is
located between
inlet port and
compensating
port

1. Brake Master Cylinder not in Braking

Secondary return spring

Primary return spring

Compensating port

Inlet port

Primary piston cup

Secondary piston cup

Stopper bolt

When not in braking

进油孔

Secondary piston

Both inlet port

and

compensating

port are closed

with the oil

pressure

increased

2. Brake Master Cylinder in Braking

When in braking

Primary piston

Inlet port

Compensating port

Piston cup

3. Brake Master Cylinder when Released (1)

Inlet port

Orifice

Piston cup

When brake pedal is released (1)

The orifice in the

piston is opened

and the brake

fluid flows back

to the piston-cup

side