Variable Displacement External Gear Machine
Researchers at Purdue University have developed a simple, low cost design for an efficient, variable displacement EGM. This design comes with all of the normal benefits of an EGM, but also allows for variable displacement (VD). Current methods to apply variable displacement to EGMs involve such costly and tedious alterations to the machines that they are rarely used in most applications. This design, though, only involves the addition of one movable member to the bearing block, which acts on the meshing of the gears, specifically determining the optimal timing of the connections between the tooth space volume and delivery. By also including asymmetric gear teeth, this design can achieve a large displacement variation range. The design is an efficient, low cost alternative to current, expensive VD designs for applications which require only partial displacement variation.
Low cost and simple, compact design Allows for partial variable displacement Easily manufacturable
Fluid power industry
Andrea VaccaPurdue Agricultural and Biological EngineeringMaha Fluid Power Research CenterAndrea VaccaPurdue Mechanical Engineering
United States
None
美国
