Which type of pump requires timing gears to operate?

Lobe pumps are designed to move fluids mechanically using rotating lobes that create a fixed volume. The operation of lobe pumps involves a pair of synchronized lobes that rotate in an opposing manner, and to ensure they maintain proper timing and function effectively, timing gears are necessary. These gears synchronize the rotation of the lobes so that they do not collide and can efficiently move the fluid through the pump chamber.

Proper timing is crucial in lobe pumps because it directly affects the volumetric efficiency and the overall performance of the pump. If the lobes are not correctly timed, it could lead to cavitation, decreased output, or damage to the pump components. Therefore, the inclusion of timing gears is essential for their operation, making it the identifying feature of lobe pumps compared to other pump designs which operate on different principles and mechanisms.