Internal Gear Pump
At present, the commonly used internal gear pump, the tooth profile curve has involute gear pump and cycloid gear pump (also known as rotor pump) two.Their working principle and main characteristics are basically the same as the external gear pump.
(1) Internal gear pump is the use of gear meshing principle, internal and external gear section circle close to one side, the other side is covered by the pump "crescent plate" separated.The active inner gear on the main shaft drives the outer gear to rotate in the same direction. At the inlet, the gears are separated from each other to form negative pressure and the liquid is sucked in. The gears are constantly embedded and engaged at the outlet and the liquid is extruded out.Because of this unique structure, it is especially suitable for conveying medium with high viscosity, viscosity range is 0.2-1000000CP;