For truck-mounted hydraulic Gear Pump china systems, the most common design in use may be the equipment pump. This design is usually characterized as having fewer shifting parts, being simple to services, more tolerant of contamination than various other designs and relatively inexpensive. Gear pumps are fixed displacement, also called positive displacement, pumps. This means the same level of stream is created with each rotation of the pump’s shaft. Gear pumps are rated in terms of the pump’s optimum pressure rating, cubic " displacement and maximum input speed limitation.

Generally, gear pumps are used in open center hydraulic systems. Gear pumps trap oil in the areas between your tooth of the pump’s two gears and your body of the pump, transportation it around the circumference of the gear cavity and then drive it through the outlet slot as the gears mesh. Behind the brass alloy thrust plates, or use plates, a small amount of pressurized oil pushes the plates tightly against the apparatus ends to boost pump efficiency.