HIGH-PRESSURE PUMP

DRIVE April 20, 2023
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A high-pressure pump includes a valve member that allows or blocks a flow of fuel to a pressure chamber. A needle is reciprocable inside a cylinder member. One end of the needle facing the pressure chamber is provided with the valve member. Another end of the needle is provided with a movable core that faces a fixed core in an axial direction of the needle. The high-pressure pump includes a coil assembly that includes a coil, a terminal connected to the coil, and first and second yokes that form a magnetic circuit on both sides of the coil in the axial direction. The coil assembly is between a first connection portion and a second connection portion. The first connection portion connects the coil assembly and the fixed core. The second connection portion connects the coil assembly and the cylinder member.

Discussion in the ATmosphere

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