For truck-mounted hydraulic systems, the most typical design in use is the gear pump. This design is usually characterized as having fewer shifting parts, being simple to service, more tolerant of contamination than various other designs and fairly inexpensive. Gear pumps are fixed displacement, also known as positive displacement, pumps. This means the same level of movement is created with each rotation of the pump’s shaft. Gear pumps are rated in terms of the pump’s maximum pressure rating, cubic in . displacement and maximum input speed limitation.

Generally, gear pumps are found in open center hydraulic systems. Gear pumps trap oil in the areas between your the teeth of the pump’s two gears and the body of the pump, transport it around the circumference of the gear cavity and then drive it through the wall plug interface as the gears mesh. Behind the brass alloy thrust plates, or use plates, a little amount of Gear Pump china pressurized essential oil pushes the plates tightly against the gear ends to boost pump efficiency.