... with mineral hydraulic fluids under mixed/boundary lubrication. bio-no-tox ester polyglycol environmentally acceptable lubricant hydraulic AlFeXY conversion coating 6061 aluminum plasma electrolytic oxidation ENVIRONMENTALLY CONSIDERATE LUBRICANTS 52 STP 1575, 2014 / available online...

... Different tribological systems work under different conditions in axial piston pumps, vane pumps, or radial piston motors. Root cause analysis procedures are used to identify the failure modes discovering typical performance limits of hydraulic fluids and fluid power components. Therefore, pump...

... Hydraulic piston pump failures may be related to either hardware or fluid problems. In some cases, apparent hardware failures have been traced to various fluid problems. In this paper, selected examples of pump failures will be provided to illustrate some common modes of axial piston pump...

... Hydraulic systems are used in many technical applications, for example, in agricultural and forestry machines as well as in aeroplanes and ships. Hydrostatic pumps and engines are essential components of hydraulic mechanisms. They transform mechanical energy into hydraulic energy and vice versa...

... Hydraulic fluids serve two functions in the hydraulic system; to transfer energy and to lubricate the system. The energy transfer role is relatively well understood while lubrication assessment has been hindered by inability to adequately model hydraulic systems in general by small-scale pump...

... Various test methods have been developed to determine the performance limits of various classes of hydraulic fluids. Lubrication capacity depends on various fundamental fluid parameters including viscosity and anti-wear properties. Critical elements of hydraulic pump and motor lubrication, which...

... Work is currently underway within the ASTM D.02 N.07 “Hydraulic Fluid Testing” Committee to evaluate the potential of replacing the Vickers V-104 vane pump with a newer, more current model, 20VQ vane pump for use in an updated ASTM D-2882 and other national standards. All of the round robin work...

... Anti-wear properties of hydraulic fluids are important because hydraulic pump and motor wear is costly. Hydraulic fluid performance specifications represent minimum requirements. International hydraulic fluid performance standards are being developed by ISO/TC28/SC4 committee as draft (ISO DIS...

... to the soil work face hydraulicly by the slurry media itself. Massive energy transfer of over 2000 hydraulic horsepower (1500 kilowatts) supplied by oil field cement slurry pumps allows dramatic productivity rates. The production rate of the process is significantly reduced in highly cohesive soils...