What is the working principle of the power steering pump?

1 Answers
DelMackenzie
07/28/25 5:07pm
Working principle of the power steering pump: When the pump is operating, the spool valve has a certain opening degree to achieve the required flow rate, with excess flow returning to the pump's suction chamber. In case of oil passage blockage or unexpected incidents causing the system pressure to exceed the pump's maximum working pressure, the safety valve opens, fully opening the spool valve, and all pressurized oil returns to the suction chamber, providing safety protection for the system. The main types of steering pumps include vane, gear, and plunger pumps. Currently, in domestic development, vane pumps are widely used, with key components comprising the stator, rotor, oil distribution plate, vanes, pump body, and rear cover. The pump body is equipped with a flow control valve and a safety valve.
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