The concept of a gear pump is quite simple. Its most basic form consists of two identical gears meshing and rotating within a tightly fitted housing. The housing's interior is shaped like an "8," housing the two gears, whose outer diameters and sides fit snugly into the housing.
A gear pump is a rotary pump that transports or pressurizes liquids by changing and shifting the working volume created between the pump cylinder and the meshing gears. It consists of two gears, a pump body, and front and rear covers forming two enclosed spaces. When the gears rotate, the volume of the space on the disengaged side increases, creating a vacuum that draws in liquid. Conversely, the volume of the space on the meshing side decreases, forcing the liquid into the pipeline. The suction and discharge chambers are separated by the meshing line of the two gears. The pressure at the gear pump's outlet depends entirely on the resistance at the pump outlet.
