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At the most basic level, a gerotor is essentially one that is moved via fluid power. Originally, this fluid was water; today, the wider use is in hydraulic devices. Myron F. Hill, who might be called the father of the gerotor, in his booklet "Kinematics of Ge-rotors", lists efforts by
Galloway in
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greater than or equal to 2. The axis of the inner rotor is offset from the axis of the outer rotor and both rotors rotate on their respective axes. The geometry of the two rotors partitions the volume between them into
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Myron Hill made his first efforts in 1906, then in 1921, gave his entire time to developing the gerotor. He developed a great deal of geometric theory bearing upon these rotors, coined the word GE-ROTOR (meaning
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different dynamically-changing volumes. During the assembly's rotation cycle, each of these volumes changes continuously, so any given volume first increases, and then decreases. An increase creates a
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1787, by Nash and Tilden in 1879, by Cooley in 1900, by
Professor Lilly of Dublin University in 1915, and by Feuerheerd in 1918. These men were all working to perfect an
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Gerotors are widely used today throughout industry, and are produced in a variety of shapes and sizes by a number of different methods.
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inner rotor and an outer rotor formed by a circle with intersecting circular arcs.
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mechanism by a one-tooth difference to provide displacement.
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https://www.academia.edu/10200507/Gerotor_Modeling_with_NX3
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can be pumped or, if they are gaseous fluids, compressed.
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A gerotor. (Image does not show intake or exhaust ports.)
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Pump School - Gerotor pump description and animation
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109:Learn how and when to remove this message
220:occurs. During this compression period,
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416:Massachusetts Institute of Technology
297:Oil pump (internal combustion engine)
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47:adding citations to reliable sources
404:Jennifer Kho (November 21, 2008).
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350:"Gerotor Modeling with NX3"
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179:. The name
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336:References
229:trochoidal
69:newspapers
320:Gear pump
277:Fuel pump
133:A gerotor
58:"Gerotor"
395:Archived
309:See also
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181:gerotor
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272:Engine
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