Vehicle brake auxiliary device

Abstract

An auxiliary device for braking booster of cars, comprises of the intake manifold, braking booster, vacuum line, single direction valve, with the intake manifold connects with the braking booster by vacuum lines through single direction valve; it also includes braking boosting auxiliary pump and the connecting lines to increase the evacuation; vacuum lines led out by the intake manifold, connectswith the outlet of the braking boosting auxiliary pump, whose another two lines are separately connected with the intake line to the intake guiding tube, and the other with the front of the braking boosting vacuum lines. As to the naturally aspirated engine, the intake lines are connected to the front of the throttle valve. While, the intake lines connect to the front of gas booster for the supercharging engine. Due to the adoption of Venturi affect theory on braking boosting auxiliary pump, to some degree, it can effectively increase the evacuation of the braking booster and improve the security of the car. The merit is even obvious when this device applies to cars with vacuum braking booster, and the one with the gas booster of insufficient vacuum of the intake manifold, in particular.

Description

technical field [0001] The invention relates to an automobile brake boosting auxiliary device, in particular to an automobile brake boosting auxiliary device which is especially suitable for supercharged engines. Background technique [0002] The brakes of the car need the brake booster to provide brake boost, so that the brake pedal can be easily depressed, otherwise it will be very difficult. The brake booster works by vacuum. The traditional brake booster directly gets the vacuum boost from the intake manifold, or the vacuum boost is generated by the vacuum pump, without using other auxiliary devices. The intake manifold of a naturally aspirated gasoline engine has a certain degree of vacuum depending on the engine’s operating conditions, which can generally meet the vacuum requirements of the brake booster; in most cases, the intake manifold of a supercharged engine is positive pressure, which cannot provide The brake booster uses vacuum and needs to rely on the vacuum ...

AI Technical Summary

Problems solved by technology

Therefore, whether it is a naturally aspirated engine or a supercharged engine, due to the constant change of the vacuum degree in the intake manifold or the vacuum pump, the vacuum boost of the brake booster may be insufficient, resulting in difficulty in braking, which brings serious consequences to the safety of the vehicle. some hidden dangers

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