What Is Marine Electro-Hydraulic Steering Gear?

Electro-hydraulic steering gear is a kind of hydraulic steering gear which is driven by a hydraulic pump by a motor.

Electro-hydraulic steering gear belongs to electro-hydraulic position servo control system, which has the advantages of light weight, small size, high sensitivity, stable, safe and reliable operation, low running noise, small vibration, can realize stepless speed change, wide power range and so on.

Electro-hydraulic steering gear is usually composed of electro-hydraulic servo valve, actuator cylinder and feedback element.

The electro-hydraulic servo valve is composed of a torque motor and a hydraulic amplifier, and the actuator cylinder (also known as the hydraulic cylinder or cylinder) is composed of a cylinder and a moving piston.

It controls servo valve or variable pump to control the steering gear movement, has been widely used in ships and aircraft industries.

According to the different control methods of electro-hydraulic steering gear, it can be divided into throttle steering gear and positive displacement steering gear. Positive displacement steering gear includes variable displacement pump-controlled steering gear, variable speed motor controlled steering gear and speed displacement combined control steering gear.

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