Abstract
A Gerotor pump is a positive displacement pump which will deliver a predetermined quantity of fluid in proportion to speed. The main advantages of this pump are: (i) having only two moving parts, (ii) high speed operation, (iii) constant flow rate. The outer and inner rotor profiles are formed by epicycloids and hypocycloids and by using the inter relationship between the outer rotor and inner rotor. The span angle design of tooth profile affect the motion and pumping performance of the Gerotor pump. The rotor profiles are built using the mathematical models and CFD Analysis was conducted for various span angle designs using ANSYS CFX. The overall fluid analysis gives the fluid behavior inside the pump. In this paper, the various flow characteristics are analyzed for different span angle designs of Gerotor pump.
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