Steering booster pumps are the "heart" of the steering system as the power source for steering the car. In developed countries, large and small cars power steering loading rate has been close to 100%, at present, many domestic models have begun to use power steering. Therefore, in the promotion and use of steering pump in the process, we must understand and master its performance, principles, in order to achieve the proper use and maintenance.
First, the working principle
Steering pump mainly blade, gear type, plunger type and so on. From the current domestic point of view, the promotion of the most used for the vane pump. The main components of the stator, rotor, with oil pan, leaves, pump body and the back cover. The pump body is equipped with flow control valve and safety valve. When the pump work spool valve has a certain degree of opening, so that the flow to meet the requirements, the excess flow back to the pump cavity smoking. If the oil line blockage or accident, the system pressure exceeds the maximum working pressure of the pump, the safety valve opens, the spool valve open, all the pressure oil are returned to the suction chamber, the system from the safety protection.
Second, use and maintenance precautions
1, the correct choice of hydraulic oil grades, otherwise it will affect the pump efficiency and life expectancy.
2, the hydraulic oil used must be clean, regular inspection, regular replacement of the oil pump on the oil filter on the road. When refueling, the driver must have a filtering device to ensure the cleanliness of the oil. And often check, clean or replace the filter device, to keep the oil flow.
3, if a long time do not use the steering pump, restart, not immediately full load, at least ten minutes should be no-load running time.
4, the use of the pump should always check for leakage, the operation is normal, with or without any impact on the noise, so that timely detection and troubleshooting.
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