Why are small holes set on the electric high pressure oil pump body?

What is the purpose of setting small holes in the pump body of electric high pressure oil pump?

The purpose of setting small holes in the pump body under the electric high-pressure oil pump is to determine the oil level of the pump body to ensure that there is enough oil for the bearing to soak. When using the high-pressure pump, the oil viscosity leaking to the bottom oil chamber of the high-pressure pump will change, the oil level will rise, and the oil above the standard will be discharged from the hole.

If this hole is blocked, the lubrication system of the bearing will be damaged, which will increase the wear and damage of the high-pressure pump. If the oil is drained too much, it is also unfavorable for the high-pressure pump. Therefore, it is necessary to ensure the normal throttle of high-pressure pump, but also control the oil discharge to ensure the normal operation of the high-pressure pump.

There are many considerations about the selection of the air inlet and power source of the pneumatic pressure test pump.

The main task of pneumatic pressure test pump is to test the pressure in the working environment. In order to ensure the smooth completion of operation, the selection of air source and power source has the specified requirements. At present, the source of air intake of the pressure test pump is nitrogen, and the power source of the pressure test pump is diesel engine.

In most cases, pneumatic pressure test pump is used in high pressure and ultra high pressure hydraulic experiments, so it has strict requirements for safety. Therefore, inert gas is the most suitable source for nitrogen. Its application greatly improves the safety index of the equipment, and the freezing point of nitrogen is very low, and it can be used normally even in extremely low cold environment, which ensures the smooth progress of pressure test process.

Diesel engine is mainly used to convert combustion heat energy into kinetic energy and drive pressure test pump to run. It is mainly because this driving mode can be applied in the absence of power supply equipment. Therefore, it is recommended to use it without understanding the environment of plunger high pressure oil pump.