Electrical hydraulic pumps support EHAs by converting which form of power?

Electrical hydraulic pumps support EHAs by converting which form of power?

• A. Pneumatic power to hydraulic power.
• B. Electrical power to hydraulic power.
• C. Mechanical power to electrical power.
• D. Thermal power to hydraulic power.

Answer: (B)

Electrical hydraulic pumps convert electrical power into hydraulic power by using an electric motor to drive a hydraulic pump. The motor provides the mechanical energy that pressurizes and moves hydraulic fluid, delivering controlled flow to the EHA. That hydraulic energy then moves the actuator’s pistons, producing the motion needed for flight control surfaces and other systems. So, the system takes electrical power and transforms it into hydraulic power to drive actuation.

Electrical hydraulic pumps convert electrical power into hydraulic power by using an electric motor to drive a hydraulic pump. The motor provides the mechanical energy that pressurizes and moves hydraulic fluid, delivering controlled flow to the EHA. That hydraulic energy then moves the actuator’s pistons, producing the motion needed for flight control surfaces and other systems. So, the system takes electrical power and transforms it into hydraulic power to drive actuation.