FIELD: transport; machine building.
SUBSTANCE: group of inventions relates to automotive industry. Vacuum amplification device for the brake system amplifier comprises a body, a check valve, an ejector and a piston. Body comprises the first hole connected to the amplifier, the second hole connected to the intake manifold, the third hole connected to the air intake and the fourth hole communicating with the atmosphere. Check valve is located between the first hole and the second hole. Ejector is located between the second hole and the third hole. Piston is located between the third hole and the fourth hole and is configured able to selectively limit the flow of the fluid medium through the ejector basing on the pressure difference between the first hole and the fourth hole.
EFFECT: ensured is stable operation of the device.
14 cl, 1 dwg
