Hydraulics and Pneumatics: Unit I: Fluid Power Priniciples and Hydraulic Pumps
Gerotor Pump
Introduction, Construction, Operation
In principle, the gerotor pump operates very much similar to internal gear pumps.
GEROTOR PUMP In principle, the gerotor pump operates very much similar to internal gear pumps. In fact, the gerotor pump is an another version of internal gear pump. The gerotor pump consists of inner gerotor, outer gerotor and a housing, as shown in Fig.4.8. In these, the inner gerotor is the driver and the outer gerotor is the follower. To simplify the design, only one shaft is involved. Also the outer gerotor has one more tooth than the inner gerotor. Both gerotors rotate in the same direction. But gerotors have two different centre of rotation. If the number of teeth on the inner and outer gerotors are 5 and 6 respectively, then for the one revolution of inner gerotor, the outer gerotor makes only 5/6 or 0.83 revolution. In order to avoid excessive internal leakage, gerotors must be made to high precision. The power-driven inner gerotor draws the outer gerotor around and they mesh'together. Each tooth of the gerotor is always in sliding contact with the surface of the outer element. This sliding contact provides the sealing effect. As the teeth disengage, the space between them increases. This creates a partial vacuum and hence the oil is sucked into the chamber through the suction port. When the space or chamber reaches its maximum volume, the suction stops. As the space diminishes with the meshing of the teeth, it forces the oil to discharge from the pump through the outlet port.1. Introduction
2. Construction
3. Operation
Hydraulics and Pneumatics: Unit I: Fluid Power Priniciples and Hydraulic Pumps : Tag: : Introduction, Construction, Operation - Gerotor Pump
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Hydraulics and Pneumatics
ME3492 4th semester Mechanical Dept | 2021 Regulation | 4th Semester Mechanical Dept 2021 Regulation