How Power Steering Pump functions in your Car
A Car's Power Steering allows to steer the Car with little effort on the drivers abilities. Power Steerings works when a Car driver inputs a movement on the steering wheel, the hydraulic pump which is driven by the engine provides the wheels the much torque needed to steer the vehicle easily in the required direction.
Most Power Steering Systems rely on a hydraulic system to turn your Car's wheels as it is equipped with rotary hydraulic pump that is driven by a belt from the main pulley of the engine at about twice the engines speed. This pump circulates highly pressurized Power Steering fluid towards the steering rack located under the vehicle between the front wheel, this fluid is designed to withstand about 1200 lbs of pressure without breaking down. A Power Steering Speed Sensor is attached to the transmission and senses the Car's speed, determining the degree of assistance to be provided by the system, so as speed increases, assistance decreases up-to 35 mph when there is no assistance provided and when speed decreases, the system provides increasing assistance until the Car has completely stopped.
A Servotronic system is part hydraulic and part electric as a piston like device is attached to the Car's pinion. If the Servo's piston retracts, it turns the piston and the wheels in one direction so if it extends, it turns them in the other direction vice versa. A direct electrical linkage runs from the steering wheel to the Power Steering Control System which makes the whole process function.
The Electrical Power Steering system uses electrically powered machinery to steer the Car's wheels so instead of a hydraulic Servo, an electrical motor is attached to the pinion and the wheel is attached to a Power Steering Control System, which relays the amount of electrical energy required to turn the Car's tires the specified angle and directs to the motor as specified. The entire process runs on Car battery and can cause the batteries to be replaced more often.
A Car's Power Steering Pump uses special fluid to perform correctly similar to engine transmission fluid and should be changed on periodic basis. Most Car manufacturers suggest the fluid be changed after 40,000 miles of usage.
An Electric Power Steering uses steering sensors to detect the position and rate of turn in the steering wheel. This information is fed to a Power Steering Control System, which in turn moves the steering shaft appropriately.
Today's Cars have assisted Power Steering that activated and functions only when your Car is running. In the event of a malfunction in the Power Steering system the vehicle will become difficult to turn around as the much required assistance will be lost. Difficulty in steering may also occur if the Power Steering fluid levels is lower than required.
Power Steering is a mechanical device and at times may have defects or failures. Car owners should inspect all hoses, clamps, and fluids on a regular basis for abnormalities. If a Power Steering device has signs of leakage or failure, it should be quickly inspected by a qualified mechanic. A dirty Power Steering fluid could contaminate the Power Steering Pump and cause permanent damage if left neglected for a longer time.
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