What is the jerk pump system cycle?

Answer 1

Jerk pump fuel injection systems consist of high-pressure pumps and pressure-operated spray valves or nozzles that are separate components. In some engines, such as the Alco, there is only one pump and one nozzle for each cylinder. In other engines, such as the Fairbanks-Morse opposed piston engine, each cylinder has two pumps and two nozzles. Most of the injection event is carried out by the pump itself. The pump raises pressure, meters the fuel, and times the injection. The nozzle is simply a spring-loaded check valve that reacts to the pressure supplied from the high-pressure pump.

Answer 2

The jerk pump system cycle refers to the repeated sequence of operations in a jerk pump system. It typically involves the suction stroke, where the fluid is drawn into the pump cylinder, followed by the compression stroke, where the fluid is pressurized. Finally, the discharge stroke occurs, where the pressurized fluid is expelled from the pump. This cyclic operation is necessary for the continuous pumping action of the jerk pump system.