How Does an Automotive Fuel Pump Work?

1 Answers
StAiden
07/29/25 8:06pm
Automotive fuel pump working principle: The fuel pump primarily relies on an electric motor to drive the rotation of turbine blades, utilizing centrifugal force to draw fuel in through the intake port and expel it through the outlet port. Types of automotive fuel pumps: Most modern vehicles use vane-type electric fuel pumps. Vane-type electric fuel pumps offer advantages such as high fuel delivery capacity, stable and high fuel pressure, low noise levels, and long service life. Function of automotive fuel pumps: As the most fundamental component in an engine's fuel supply system, the fuel pump is responsible for extracting fuel from the tank during engine operation and continuously delivering it at a certain pressure through the fuel supply lines to the engine. The fuel then undergoes secondary pressurization by a high-pressure fuel pump before being distributed in precise quantities to each cylinder according to the engine's firing sequence.
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