Main Injection-continued

TM 9-2320-312-24-2

Systems Operation Section

While the solenoid is energized, the poppet valve

remains open. While the poppet valve is open, high

pressure oil continues to flow. The flow of the high

pressure oil pushes downward on the intensifier

piston and the plunger. The injection pressure

fluctuates between 34 MPa (5000 psi) and 162 MPa

(23500 psi). The injection pressure depends on

the engine's requirements. Injection continues

until either the solenoid is de-energized or the

intensifier piston hits the bottom of the bore. When

the solenoid is de-energized, the poppet spring is

allowed to close the poppet valve. When the poppet

valve closes, high pressure oil is shut off.