Efficiency modeling and experimental validation of a variable displacement linkage pump

Shawn Wilhelm, James D Van De Ven

Research output: Contribution to conferencePaper

2 Citations (Scopus)

Abstract

The power density of hydraulic drive trains make variable displacement machines appealing to a wide range of applications such as mobile hybrid systems, displacement controlled actuation of heavy machinery, and hydrostatic transmissions for wind power. Current state of the art variable displacement pumps suffer from poor efficiencies at low displacements, thus limiting the potential benefits of hydraulic solutions. Here, a variable displacement linkage pump is presented as a promising method for achieving high efficiency across the full displacement range. In this paper, the linkage kinematics and dynamics are discussed, an energy loss model is presented and used to drive design decisions of a first generation prototype, and experimental results are presented to validate the model. It will be shown that this linkage-based, variable, positive displacement architecture shows promise as a highly efficient alternative to other axial piston machines across a wide range of displacements.

Original languageEnglish (US)
DOIs
StatePublished - Jan 1 2013
EventASME/BATH 2013 Symposium on Fluid Power and Motion Control, FPMC 2013 - Sarasota, FL, United States
Duration: Oct 6 2013Oct 9 2013

Other

OtherASME/BATH 2013 Symposium on Fluid Power and Motion Control, FPMC 2013
CountryUnited States
CitySarasota, FL
Period10/6/1310/9/13

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Pumps
Hydraulic drives
Hybrid systems
Pistons
Wind power
Machinery
Energy dissipation
Kinematics
Hydraulics

Cite this

Wilhelm, S., & Van De Ven, J. D. (2013). Efficiency modeling and experimental validation of a variable displacement linkage pump. Paper presented at ASME/BATH 2013 Symposium on Fluid Power and Motion Control, FPMC 2013, Sarasota, FL, United States. https://doi.org/10.1115/FPMC2013-4428

Efficiency modeling and experimental validation of a variable displacement linkage pump. / Wilhelm, Shawn; Van De Ven, James D.

2013. Paper presented at ASME/BATH 2013 Symposium on Fluid Power and Motion Control, FPMC 2013, Sarasota, FL, United States.

Research output: Contribution to conferencePaper

Wilhelm, S & Van De Ven, JD 2013, 'Efficiency modeling and experimental validation of a variable displacement linkage pump' Paper presented at ASME/BATH 2013 Symposium on Fluid Power and Motion Control, FPMC 2013, Sarasota, FL, United States, 10/6/13 - 10/9/13, . https://doi.org/10.1115/FPMC2013-4428
Wilhelm S, Van De Ven JD. Efficiency modeling and experimental validation of a variable displacement linkage pump. 2013. Paper presented at ASME/BATH 2013 Symposium on Fluid Power and Motion Control, FPMC 2013, Sarasota, FL, United States. https://doi.org/10.1115/FPMC2013-4428
Wilhelm, Shawn ; Van De Ven, James D. / Efficiency modeling and experimental validation of a variable displacement linkage pump. Paper presented at ASME/BATH 2013 Symposium on Fluid Power and Motion Control, FPMC 2013, Sarasota, FL, United States.
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