Injector pumps It is a very interesting design of diesel engine fuel pumps. The pump structure is quite small and short, and instead of multiple pressure generating units, there is only one common pumping unit that sends fuel under pressure to all cylinders. Therefore, the amount of fuel delivery (SP) ?AS = MP) and the delivery start time of all cylinders is the same and does not need to be adjusted separately - The pump design is such that the building of a six-cylinder pump is almost equal to a four-cylinder pump - The internal building shows a mill pump with an electric regulator. The rotor of this pump only rotates
How to work the pressure valve
The function of this valve is to adjust the required pressure in the hydraulic circuit. The valve has a piston and a spring, which tends to push the piston down and block the output circuit of the pump. Types of mill injector pumps
How to work the valve measuring the amount of fuel
When the engine speed increases, the pump axis also increases and the pump pressure increases. As a result, the valve piston moves up in the opposite direction of the spring force. The outlet channel of the valve is opened and the pressurized fuel returns to the tank and the pressure of the circuit reaches the limit of the pressure of the control spring to increase the temperature in the circuit. By means of this valve, the bubbles formed in the circuit due to the increase in temperature are released. It becomes .a
The measuring valve in the grinding pumps works in two ways, rotating and returning. With this movement, it creates different output passages in the circuits and as a result adjusts the amount of fuel consumed according to the engine load. The fuel sent by the blade pump affects the measuring valve piston and tends to close the output circuit. By moving the gas pedal, the valve piston moves to the right and the required amount of fuel is measured.
