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2021
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The working principle of a car vacuum pump
A vacuum pump, as the name suggests, is used to create a vacuum, and its function is to generate negative pressure, thereby increasing the braking force. For vehicles driven by diesel engines, since the engine uses compression ignition (CI), it cannot provide the same level of vacuum pressure at the intake manifold, so a vacuum pump is needed to provide a source of vacuum.
Generate negative pressure to increase braking force.
A vacuum pump, as the name suggests, is used to create a vacuum, which serves to generate negative pressure to increase braking force. For vehicles driven by diesel engines, due to the engine using compression ignition (CI), it cannot provide the same level of vacuum pressure at the intake manifold, so a vacuum pump is needed to provide a source of vacuum.
Additionally, for gasoline direct injection (GDI) engines designed to meet higher emission and environmental requirements, the intake manifold also cannot provide the same level of vacuum pressure to meet the requirements of the vacuum brake assist system, so a vacuum pump is also needed to provide a source of vacuum.
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