The role of the automotive vacuum pump: an introduction
The braking system of passenger cars and light commercial vehicles mainly uses hydraulic pressure as the transmission medium. Compared with the pneumatic braking system which can provide a power source, it needs a booster system to assist the driver in braking. The vacuum brake booster system is also known as the vacuum servo brake system, the servo brake system is based on human hydraulic braking plus a set of other energy sources to provide braking power booster device, so that human and power can be used, that is, both human and engine power as a brake energy braking system. Under normal circumstances, its output pressure is mainly generated by the power servo system, so when the power servo system fails, it can still be driven by the human hydraulic system to produce a certain degree of braking power.
The role of the automotive vacuum pump: working principle
For the vacuum source of the vacuum booster system, vehicles with petrol engines can generate a high vacuum pressure at the intake manifold due to the ignition type of the engine, which can provide a sufficient vacuum source for the vacuum booster system, while for vehicles driven by diesel engines, the engine uses compression ignition CI (Compression Ignition cycle), so In addition, for gasoline direct injection engines (GDI), which are designed to meet high emission requirements, the same level of vacuum pressure cannot be provided at the intake manifold to meet the requirements of the vacuum brake booster system, so a vacuum pump is also required to provide a vacuum source. Therefore a vacuum pump is also required to provide a source of vacuum.
Well, about the working principle of the car vacuum pump I'll say this, I do not know how much you understand it, well I'll give you this today thank you for watching we see you next time.
Post time: Jun-18-2022
