Control of solids contamination in hydraulic systems — an overview

Abstract Contamination related problems in power hydraulics are not new. Even before the turn of the century, when water was used in a number of municipalities as a source of centralised power, methods of dealing with the problem were mentioned. However, it has only been in the past 25 years that serious investigation and research has been conducted. The efforts and results of the cumulative body of researchers are critically reviewed in this paper with suggestions as to where future work could be concentrated. This paper forms the foundation of a project presently in hand to investigate the problem of contamination in underground mining equipment hydraulics.

[1]  Hooshang Heshmat,et al.  On a common tribological mechanism between interacting surfaces , 1989 .

[2]  Nicola Nervegna,et al.  Pump Efficiencies: Approximation and Modeling , 1981 .

[3]  John Lancaster,et al.  Wear modelling : using fundamental understanding or practical experience ? , 1991 .

[4]  C J Hooke,et al.  End Plate Balance in Gear Pumps , 1984 .

[5]  P. N. Nikiforuk,et al.  Research update: a new hydraulic flow fuse , 1983 .

[6]  David Tabor,et al.  Wear–A Critical Synoptic View , 1977 .

[7]  B. J. Roylance,et al.  Libricated three-body abrasive wear-contaminant condition versus bounding surface material hardness , 1987 .

[8]  Maurice Godet,et al.  Continuity and dry friction: An Osborne Reynolds approach , 1987 .

[9]  T. Sasada.  Future Direction of Research in Wear and Wear Resistant Materials. Status of Understanding , 1984 .

[10]  Erdem Koç,et al.  Analytical and experimental investigation into the sealing and lubrication mechanisms of the gear ends in pumps , 1989 .

[11]  Erdem Koç.  An investigation into the performance of hydrostatically loaded end-plates in high pressure pumps and motors: movable plate design , 1991 .

[12]  Hooshang Heshmat,et al.  The Rheology and Hydrodynamics of Dry Powder Lubrication , 1991 .

[13]  J. K. Lancaster,et al.  MATERIAL-SPECIFIC WEAR MECHANISMS : RELEVANCE TO WEAR MODELLING , 1990 .

[14]  J. A. Drennen.  Hydraulic filtration: exploding the myths , 1987 .

[15]  L. Pearson.  Maintenance suggestions for reciprocating air compressors. Attention to filters and lubrication will stretch their service life even further , 1983 .

[16]  I. T. Hong.  The beta prime, a new advanced filtration theory , 1985 .