Typical material substitutions are replacements of steelcomponents with. During the tests with a tractor hydraulic pump, the fluids were. A new hydraulic pump and motor test bench for extremely. I have a plastic brake bleeding hand suction pump that might be useful to suck fluid up into the hydraulic pump. Its quite possible that there is no repair shop in the world that has this amount of raw power available to their hydraulic pump test bench. A complete analysis of axial piston pump leakage and. An analysis of hydraulic fluid wear performance discrimination based on a statistical evaluation of a standard vane pump test richard t.
Purchase, rent, and calibration available on most products. In any troubleshooting situation, no matter how simple or complex the hydraulic system, always start with the basics. Read experimental investigation on system performance using palm oil as hydraulic fluid, industrial lubrication and tribology on deepdyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips. In this lesson well examine fixed and variable displacement pumps commonly gear, vane, and piston used to drive hydraulic systems as well as. Pump efficiency is only one element of hydraulic system efficiency. Visit our lab falex tribology testing and technical support. Dump trouble shooting procedure here is a link for manuals on this hyd. Tribology of hydraulic pump testing conference osti. A new tribological test bench for lightweight hydraulic. The temperature of the pump case, the flow of the case drain and the current draw of the drive motor are common checks that can be done regularly and over a period of time to track the wear of a. As the cylinder barrel rotates, the slippers slide on the.
Provides an overview of both established and emerging procedures for testing the lubrication properties of fluids used in hydraulic pumps and motors, in 28 papers from a symposium held in houston, texas, in december 1995. Article pdf available in tribology in industry 401. One approach for the mass reduction of hydraulic systems is the material. Understanding the basic hydraulic systems and components can be of great value when troubleshooting and testing hydraulic equipment. Tribology of internal combustion gasoline and diesel engines, industrial and automotive gears, other transmissions, compressors, turbines, hydraulic systems with different pump types, machine tools for cutting and forming processes wear and wear protection, material selection and surface engineering fundamentals of wear materials. Three simple checks you should perform before bench. Test rig used to measure directly the dynamic pressure inside a pistoncylinder chamber in an axial piston pump. Verification measurement of the hydraulic pumps flow q g in relation to time t at hydraulic pumps speeds n g of. Totten, 9780803124226, available at book depository with free delivery worldwide. Hi ansiaccredited american national standards are globally accepted for use by pump users of all industries. Series 920 50 80 gpm universal, independent dual system hydraulic test stand.
Recently, the hydraulic institute has published new american national standards combining 1series, centrifugal pumps, and 2series, vertical pump, standards into a single 14series standards. Oclcs webjunction has pulled together information and resources to assist library staff as they consider how to handle coronavirus. Tribology of hydraulic pump testing astm special technical publication astm committee d2 on petroleum products and lubricants, george e. These tests have included both pump tests and bench. Handbook of lubrication and tribology volume i application and maintenance second edition edited by george e. Quality knowledge partner solutions 2 schedule of presentation 1. Hydraulic pump testing procedures to evaluate lubrication. The aim to reduce the costs and the mass of hydraulic systems, for the example of an axial piston pump, is getting even more important. An investigation of hydraulic motor efficiency and tribological surface properties article pdf available in tribology transactions 574 april 2014 with 2,827 reads how we measure reads.
There are several tests that can be made on a hydraulic pump to indicate its condition. Simulation of anti wear performance using a modified brugger test. In water hydraulic piston pump, poor lubrication is more likely to happen than in oil hydraulic one because of difference in properties between water and oil. Psim 2 will model pump system behavior and demonstrate the impact of operational and design tradeoffs on system performance and energy usage for centrifugal and positive displacement pumping systems. You will see fluid enter the small clear plastic reservoir on the hand pump. Hydraulic pump testing procedures to evaluate lubrication performance of hydraulic fluids 952092 although the selection and role of hydraulic fluids as energy transfer agents is relatively well understood, there is no consensus on the appropriate procedures to evaluate lubrication properties on a laboratory scale. Pump testing strategies and associated tribological considerationsvane pump testing methods astm d 2882, ip281, and din 589. Proceedings of the asmebath 2017 symposium on fluid power and motion control. Hydraulic pump motor division hydraulic flow is developed as the pump rotating group is driven by a prime mover hydraulic pump basics fluid is forced out of pump at the pump outlet a partial vacuum is created at the pump inlet and atmospheric pressure forces fluid into pump from the reservoir. A complete analysis of axial piston pump leakage and output flow ripples. For submerged electric motor driven pumps, the capacity test is to be carried out with the design medium or with a medium below the minimum working temperature.
The series 920 hydraulic test stand features independent dual systems, high pressure intensifier, pump test unit for testing pumps, and variable frequency drive for precise rpm control for testing pumps. We teach them all in our workshops temperature, case drain flow and current draw of the drive motor are all good indications but mostly require. Conestoga vane pump test runs are used to test the anti wear properties of hydraulic fluids at the final stage of the development of a new formulation. The upper illustration would be a circuit used to raise a cutting unit with a hydraulic cylinder. They will be evaluated by a task force of the association charged with develop. Tribology of hydraulic pump testing, astm stp 10, issn 00660558, 1996. Latest technologies come in compact hpu hydraulics. The most definitive test of a hydraulic pump download view pdf. A pump and motor test stand is constructed to measure the ef. Conical spindle distribution is a new type of hydraulic pump distribution, its steady working conditions refer to a stable position of the shaft and lubrication state under constant operating condition, which directly influences the hydraulic pump efficient and reliable work. The application of tribology in engineering is used to study friction, wear and lubrication. Selective laser melting slm technology has a great potential to reduce size and weight of hydraulic valves.
The truth about hydraulic pump testing brendan caseys. Condition monitoring of hydraulic systems data set download. However, formatting rules can vary widely between applications and fields of interest or study. Friction and lubrication behavior of a selective laser. However, the tribological performance of an slmed valve has not been studied which is crucial for the performance and reliability of the valve, especially under contaminated conditions.
Pdf experimental hydraulic device for the testing of. Read the latest chapters of tribology and interface engineering series at. Bench test development innovative bench testing procedures currently under evaluation to enhance or replace current testing approaches are explored in 6 papers. To reach this target, it is necessary to optimize the actual hydraulic systems by integrating lightweight designs. The performance and efficiency of hydraulic pumps and. Wear testing and specification of hydraulic fluid in. Tribological response of mos2 coated and oxynitrided samples with. Experimental investigation on system performance using. The chemical composition of the species formed after testing was analysed using xray.
Understand what type of testing is required for a rotary pump to determine if the manufacturer has conducted or should conduct specific tests to demonstrate the pumps ability to perform satisfactorily, both mechanically and hydraulically. Experimental hydraulic device for the testing of hydraulic pumps and liquids. Reliable information about the coronavirus covid19 is available from the world health organization current situation, international travel. You would have to make a tight fitting connection in the pump test port to establish vacuum. Numerous and frequentlyupdated resource results are available from this search.
This research consists of predicting the performance and ef. Pump testing strategies an associated tribological considerationsvane pump testing methods astm d 2882, ip281 and din 589. Article information, pdf download for tribological response of mos 2. Piston pump is one of the most frequently used hydraulic units in recent engineering technique. Tribology of hydraulic pump testing astm committee d2. Provides an overview of both established and emerging procedures for testing the lubrication properties of fluids used in hydraulic pumps and motors.
Water hydraulic systems have provoked major interest because of the human friendly and environmental safety aspects. An often used design strategy is the so called material substitution. Working on a pump efficiency of 90%, 555kw 744hp would be needed to test it at full power using the energy loss methodand that doesnt include inefficiencies in the test bench drive itself. In this section you can download videos of centrifugal pumps, positive displacement,r eciprocating pump videos for educational purpose. A new test method to evaluate hydraulic fluids for vane pumps. Evaluation of an ultrasonic method for measurement of oil film thickness in a hydraulic motor piston ring. Experimental hydraulic device for the testing of hydraulic pumps. A pumping test is a field experiment in which a well is pumped at a controlled rate and waterlevel response is measured in one or more surrounding observation wells and optionally in the pumped well control well itself. These tests have included both pump tests and bench tests. Pdf an investigation of hydraulic motor efficiency and. Energy losses occur in pumps, motors, hoses, filters, valves and coolers thorough understanding of both hardware and fluid is key to delivering real efficiency total lubricant formulation works together enable real efficiency without compromising durability. Tribology and interface engineering series life cycle tribology.
In an axial piston pump, an input shaft rotates the cylinder barrel. Lubrication and tribology in seawater hydraulic piston pump. Four fault types are superimposed with several severity grades impeding selective quantification. Mechanical efficiency for the radial piston motor test shown in graph called radial piston motor torque losses as a function of motor speed z at constant viscosity and load. The checks allow you to determine in under a minute if such a test will make any sense and potentially save you time. One of the most critical parameters in hydraulic pump testing is the pump wear. Traditionally, numerous tests have been used to determine the lubrication properties of hydraulic fluids. The data set addresses the condition assessment of a hydraulic test rig based on multi sensor data. The lower illustration would be a circuit that uses a hydraulic. On the steady posture of conical spindle distribution used. The presented paper deals with tribological contacts in lightweight hydraulic pumps. Normally the number of points required for measurement is based on the code used for pump manufacturing ie. Design of a hydraulic laboratory device is based on the need for testing new types of hydraulic pumps or various types of.
Evaluation of tractor biodegradable hydraulic fluids on the basis of. Of gear, piston and vane pumps, one type is not better than any other type in an absolute sensethey simply are different, with individual strengths. A regenerative loop hydraulic system is used to reduce the power requirements of the test stand. Centrifugal pump performance test procedure mechanical. Tribology of hydraulic pump testing book, 1997 worldcat. Read tribological study on hydrostatic slipper bearing with annular orifice damper for water hydraulic axial piston motor, tribology international on deepdyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips. Falex tribology belgium falex application center tribology a new test method to evaluate hydraulic fluids for vane pumps tribology is the science and technology related to friction, wear and lubrication. Rules for classification and construction vi additional.
Achten, peter, potma, jeroen, and eggenkamp, sjoerd. Wear processes are analysed by means of a socalled tribological. A new hydraulic pump and motor test bench for extremely low operating speeds. S everal tests can be performed on a hydraulic pump to indicate its condition.