Internal Gear Pumps

Present the choice of preference at places up to 14 bars atmospheric pressure and for such viscous fluids as molasses, chocolate, asphalt, thick lubricants and even such materials that need to be slightly crushed, due to their large pitches and high tolerance between gears.Internal gear pumps are consisting of two moveable parts and they have positive displacements. While the rotor gear coupled to pump shaft is turning, rotor gear will transmit the motion to the idler pin in order to rotate it. During this period idler pin and rotor separates each other by crescent and vacuum will occur.Pump sucks the constant amount of liquid by the virtue of vacuum. Therefore, this sucked fluid flows from gear teeth spaces (clearances) to the discharge outlet.While the gears meshing in the discharge outlet, pressure occurs and this motion allows the fluid transfer to the outside.Meanwhile idler pin and rotor gear mesh each other in the discharge outlet and this activity reveal the pressure for forcing fluid to the outside. Pump transfers the liquid by every revolution of the shaft in accordance with volume capacity. Henceforth capacity of pump is directly proportional to its magnitude and RPM.