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Energies 2017, 10(4), 435; doi:10.3390/en10040435

GeroMAG: In-House Prototype of an Innovative Sealed, Compact and Non-Shaft-Driven Gerotor Pump with Magnetically-Driving Outer Rotor

1
Laboratori de Sistemes Oleohidraulics i Pneumatics, Department of Fluid Mechanics, Universitat Politecnica de Catalunya, Campus Terrassa, Colom 11, 08222 Terrassa, Spain
2
Laboratori de Sistemes Oleohidraulics i Pneumatics, Mechanical Engineering Department, Universitat Politecnica de Catalunya, Campus Terrassa, Colom 11, 08222 Terrassa, Spain
3
Aleaciones de Metales Sinterizados, Carretera Nacional 340 km 1242, Les Fallulles, 08620 Sant Vicenç dels Horts, Spain
4
Mavilor Motors, Empordà 11-13, Can Bernades-Sobirà, 08130 Santa Perpetua de Mogoda, Spain
*
Author to whom correspondence should be addressed.
Academic Editor: Andrea Vacca
Received: 26 February 2017 / Accepted: 22 March 2017 / Published: 26 March 2017
(This article belongs to the Special Issue Energy Efficiency and Controllability of Fluid Power Systems)
View Full-Text   |   Download PDF [5733 KB, uploaded 28 March 2017]   |  

Abstract

The technology of gerotor pumps is progressing towards cutting-edge applications in emerging sectors, which are more demanding for pump performance. Moreover, recent environmental standards are heading towards leakage-free and noiseless hydraulic systems. Hence, in order to respond to these demands, this study, which will be referred to as the GeroMAG concept, aims to make a leap from the standard gerotor pump technology: a sealed, compact, non-shaft-driven gerotor pump with a magnetically-driving outer rotor. The GeroMAG pump is conceived as a variable-flow pump to accomplish a standard volumetric flow rate at low rotational speed with satisfactory volumetric efficiency. By following the authors’ methodology based on a catalogue of best-practice rules, a custom trochoidal gear set is designed. Then, two main technological challenges are encountered: how to generate the rotational movement of the driving outer rotor and how to produce the guide of rotation of the gear set once there is no drive shaft. To confront them, a quiet magnet brushless motor powers the driving outer rotor through pole pieces placed in its external sideway and the rotational movement is guided by the inner edgewise pads carved on it. Subsequently, GeroMAG pump architecture, prototype, housing, methodology, materials and manufacture will be presented. As a principal conclusion, the GeroMAG proof of concept and pump prototype are feasible, which is corroborated by experimental results and performance indexes. View Full-Text
Keywords: trochoidal-gear; pump configuration; control design; performance modeling; manufacturing; magnetic driving; electromagnetic assembly; fluid power trochoidal-gear; pump configuration; control design; performance modeling; manufacturing; magnetic driving; electromagnetic assembly; fluid power
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Gamez-Montero, P.J.; Castilla, R.; Codina, E.; Freire, J.; Morató, J.; Sanchez-Casas, E.; Flotats, I. GeroMAG: In-House Prototype of an Innovative Sealed, Compact and Non-Shaft-Driven Gerotor Pump with Magnetically-Driving Outer Rotor. Energies 2017, 10, 435.

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