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Contributions to Hydraulic Control: 5—Lateral Forces on Hydraulic Pistons
10
Citations
0
References
1953
Year
Abstract Sticking or excessive friction of pistons or valves in their bores has always caused trouble to designers and users of hydraulic equipment. The phenomena involved are complex and incompletely understood. This paper shows that large lateral forces may be caused by hydrodynamic phenomena alone, without the complicating effects of dirt in the oil. It presents expressions describing the lateral force for certain cases of simple geometry, with experimental verification, and discusses other cases qualitatively. Finally, it summarizes briefly present ideas concerning the frictional phenomena involved and lists several questions to which the answers must be obtained by further investigation.