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Techniques for Improving the Efficiency of Agricultural Fluid Power Systems
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English
Abstract
Four alternative fluid power systems were analyzed to determine their efficiencies and standby power consumption while providing hydraulic power for power steering and a hitch for an agricultural tractor operating over a typical duty cycle.
The investigation shows that a significant reduction in losses can be achieved with systems incorporating both split flow and variable delivery capabilities. These characteristics reduce losses by providing the required flow and pressure to each function without a large pressure drop for the function operating at the lower pressure.
These systems can be used to improve efficiencies whenever there are multiple, simultaneous hydraulic power demands which require significantly different pressures.
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Citation
Pan, S., Fronczak, F., and Beachley, N., "Techniques for Improving the Efficiency of Agricultural Fluid Power Systems," SAE Technical Paper 861299, 1986, https://doi.org/10.4271/861299.Also In
References
- Burk, R. “Agricultural Tractor Hydraulic Power Use” SAE Paper 810928 September 1981
- Lonnemo, K.R. “A Method to Compare Control Losses for Various Mobile Hydraulic Systems” SAE Paper 831272 International Off-Highway Meeting Milwaukee, Wl September 1983
- Novacek, William J. “Load-Sensing Steering - Analysis and Application” Eaton Hydraulic Division Eden Prairie, Minn.
- Evans, Harry C. “A Review of Efficient Hydraulic Circuits in Selected Underground Mining Machines” SAE Paper 831271 International Off-Highway Meeting Milwaukee, Wl September 1983
- Henke, R.W. “Fluid Power Systems and Circuits” Penton/IPC Publisher 1983