development of a device to detect and measure aeration in hydraulic oil.
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development of a device to detect and measure aeration in hydraulic oil. by D A. Wood

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Published .
Written in English


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Edition Notes

ContributionsManchester Polytechnic. Department of Mechanical, Production and Chemical Engineering.
ID Numbers
Open LibraryOL14524343M

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Hydraulic oil contains approximately 9% of dissolved air. When the oil cannot flow into the pump fast enough to match pump’s intake volume, air is pulled out of the oil. The air bubbles travel into the pump, and when they reach an area of relatively high pressure. Referring first to FIG. 1, an apparatus for measuring oil aeration of an engine according to an exemplary embodiment of the present invention is applied to a test eng and the test engine 30 is provided with an oil line 40 used for measuring oil by: 7. Oil Aeration Measurement on a High-Speed Diesel Engine. Engine lubricating oil perform functions including wear reduction, friction reduction, piston cooling, corrosion prevention, cleaning pistons, preventing leakage and serving as a hydraulic media. Oil aeration is the entrapment of air into engine oil during operation. The developed setup and aeration measurement method proved to be suitable to generate entrained air in oil in a reproducible manner and to accurately characterize aerated oil up to air contents .

Air can get into the oil circulation system (oil aeration) as lubricating oil passes through the bearings and gears. The study shows that the lubricating oil can contain as much as 15% (v/v) dispersed air on its way back to the oil sump, where most of the air bubbles rise and escape from the oil. The degree of aeration is even severe for high Cited by: Oil/water interface probe: slowly lower the probe through the fluid column to detect and measure NAPL interfaces. Transparent bailer: slowly lower the bailer through the fluid column to span the NAPL layer, slowly withdraw the bailer, and measure the NAPL thickness within it. Use double check-valve bailers to retrieve DNAPL Size: 94KB. Temperature sensors measure the amount of heat energy in a source, allowing them to detect temperature changes and convert these changes to data. Machinery used in manufacturing often requires environmental and device temperatures to be at specific levels. Similarly, within agriculture, soil temperature is a key factor for crop growth. is a mechanical unit of measure equal to the force required to move lb, 1 ft in 1 sec. A movable part within the valve body that separates the hydraulic fluid and the bias spring. Is a device that converts low-pressure, high-flow-rate fluid to high pressure, low-flow-rate fluid.

The precision parts to high tolerances are susceptible to the effects of contamination. A dirty fluid causes wear, which accelerates the leakage and the development of the heating system. The heat reduces the lubricity of a fluid and cause more wear. If a hydraulic pump or motor is defective, the system becomes contaminated. ACTUATOR: A device in which power is transferred from one pressurized medium to another without intensification; the hydraulic components such as hydraulic cylinders, hydraulic motors and hydraulic rotary actuators that directly help convert hydraulic energy into mechanical energy. A glossary of hydraulics Aa.   Pump is a device which is made for moving fluid, and it is done by developing a pressure difference, causing the fluid to move from an area of high pressure to low pressure. Its procedure is based on both Pascal’s and Bernoulli’s principles. The hydraulic motor is the rotary complement of the hydraulic cylinder.   Equipment currently is under development to continuously monitor the condition of hydraulic fluid while equipment is running. Assessment starts with a sample Regardless of the details of any contamination-monitoring program, its usefulness will depend on fluid sampling.