What type of pump operates using two gears within a housing?

The type of pump that operates using two gears within a housing is known as a gear type pump. This design consists of two intermeshing gears that rotate within a fixed casing. The rotation of the gears creates a low-pressure area at the inlet side of the pump, allowing fluid to be drawn in while simultaneously displacing the fluid out of the outlet side as the gears mesh and turn.

Gear type pumps are commonly used for their reliability, simple design, and ability to handle fluids at a relatively consistent flow rate. Their construction allows them to be efficient in transferring various types of fluids, including oils and fuels, making them prevalent in many mechanical and industrial applications.

In contrast, the other types of pumps mentioned function differently. For instance, piston type pumps use reciprocating motion to move fluid, while variable displacement pumps adjust their output based on system demands, and constant displacement pumps provide a steady flow regardless of the pressure or system requirements. These differing mechanisms highlight why gear type pumps are uniquely characterized by their dual-gear operation.