What type of oil pump is most commonly used on turbine powered engines?

The most commonly used oil pump in turbine-powered engines is a positive displacement pump. This type of pump operates by trapping a fixed amount of oil and forcing it through the outlet, ensuring a consistent flow rate regardless of the pressure conditions in the system. This characteristic is crucial in turbine engines, where maintaining consistent oil flow to critical components like bearings and gears is vital for effective lubrication and cooling.

Positive displacement pumps can efficiently handle the high pressures required in these engines while maintaining a stable flow, which contributes to overall reliability and performance. Additionally, the design of these pumps tends to be robust and can accommodate the specific flow and pressure demands of turbine engines. While gear, rotary, and vane pumps also have applications in various systems, they typically do not match the effectiveness and reliability of positive displacement pumps in the context of turbine applications.