What are the two main types of pumps used in lubrication systems?

• A. Pressure and Scavenge Pumps
• B. Gear Type and Gerotor
• C. Piston and Centrifugal
• D. Electric and Manual

Answer: (B)

The two main types of pumps used in lubrication systems are indeed gear type and gerotor pumps. These pumps are critical components that facilitate the circulation of lubricant throughout an engine or machinery, ensuring that all moving parts receive adequate lubrication to minimize wear and friction.

Gear type pumps operate by using rotating gears to create a vacuum that draws the lubricant in and then pushes it out through the discharge, making them effective for providing a constant flow of oil. Their design allows for simplicity and reliability in various applications.

Gerotor pumps, on the other hand, are a variation of the gear pump. They consist of an inner rotor that rotates within an outer rotor, creating pockets that trap fluid and move it through the system. They are particularly praised for their ability to handle viscous fluids and for their compact and efficient design.

Together, these pump types are essential for maintaining the proper functioning of lubrication systems in aviation machinery, contributing to engine performance and longevity. Other pump types listed do play roles in different systems, but they do not typically serve as the primary types utilized for lubrication.