The role of the hydraulic pump solenoid valve

The role of the hydraulic pump solenoid valve

What does  the hydraulic pump solenoid valve  do?

The proportional pressure reducing valve is controlled by the pulse width modulation signal of the engine and the hydraulic pump solenoid valve controller to reduce the pilot pressure. The reduced pressure is the power shift pressure (PS). The reduction of the engine speed causes the power shift pressure to rise and the the hydraulic pump solenoid valve flow to decrease. An increase in engine speed results in a decrease in power shift pressure and an increase in the hydraulic pump solenoid valve volume.

The function of the solenoid valve on the large the hydraulic pump solenoid valve is to adjust the matching relationship between the output power of the large the hydraulic pump solenoid valve and the engine power. No matter what you are digging, the power of the big the hydraulic pump solenoid valve is always lower than the power of the engine, otherwise the engine will be stuffy and black smoke will be emitted. For example, can you work with the first gear of the accelerator? You can work, but it is very slow, and sometimes you feel unable to dig. When you drive to 6th gear and 7th gear to work, the accelerator is increased at this time, the output power of the engine is increased, and the output power of the corresponding hydraulic the hydraulic pump solenoid valve is also increased, and the excavator digs harder and faster. If you haven't explained it clearly to you, please continue to ask questions. In short, the function of the large the hydraulic pump solenoid valve solenoid valve is to adjust the flow output of the large the hydraulic pump solenoid valve of the excavator. Large the hydraulic pump solenoid valve output power P = pressure multiplied by X flow. You have to understand that the engine output power is a fixed value (all engines have an overload value, which is regarded as a certain value when calculating now). After the power is constant, if you want to dig the soil, you must change the pressure. The greater the pressure, the stronger the excavator digs. To keep the power unchanged, the only way to reduce the output flow of the large the hydraulic pump solenoid valveis. So when you are working, the deeper you dig, the slower your digging speed is for this reason.