Improving efficiency of hydrostatic drives
Nowadays people, companies and nations become more and more aware that non renewable energy stored in coal, oil and gas are limited thus constantly pushing costs up as demands soar. This awareness is coupled with the knowledge that increasing levels of CO2 act as greenhouse gases leading to global temperature rises. In case we dont want to compromise on our standard of living, we need to save energy by increasing the efficiency of machines. This paper provides an insight what efforts are made to increase the efficiency of hydraulic components, especially axial-piston-units. Traditional methods to improve the tribological behavior are optimized machining of components, surface-coating or the controlled running-in of the whole unit. Newer methods are microstructures on sliding surfaces and contouring of the piston and will be described in this paper. Some examples from recent research results will be provided to highlight the potential of optimized units.
Axial piston pumps Microstructures Contouring Work of friction Hydro-mechanical losses Volumetric losses Single-piston test-bench
Hubertus Murrenhoff Stefan Gels
RWTH Aachen University - Institute for Fluid Power Drives and Controls (IFAS), Steinbachstr. 54, 52074 Aachen, Germany
国际会议
杭州
英文
11-17
2009-04-08（万方平台首次上网日期，不代表论文的发表时间）