Tribology Of Hydraulic Pump Testing
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Tribology Of Hydraulic Pump Testing
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Author : George E. Totten
language : en
Publisher: ASTM International
Release Date : 1997
Tribology Of Hydraulic Pump Testing written by George E. Totten and has been published by ASTM International this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Oil hydraulic machinery categories.
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. They will be evaluated by a task force of the Association charged with develop
Tribological Testing With Hydraulic Pumps
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Author : RJ. Bishop
language : en
Publisher:
Release Date : 1997
Tribological Testing With Hydraulic Pumps written by RJ. Bishop and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Hydraulic categories.
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 prototypes or by bench testing. In general, most conventional bench tests do not adequately model wear which may accompany hydraulic fluid use in various hydraulic pump designs. Therefore, this has necessitated the use of hydraulic pumps as tribological test stands. The objectives of this paper are to: 1) review common failure modes of different types of hydraulic pumps, 2) provide an overview of the deficiencies of bench testing of hydraulic fluids, 3) review the tribological criterion for successful lubrication of vane, piston and gear pump testing, 4) review the most common pump tests reported to date, and 5) critique the quality of these tests relative to their ability to provide the required data.
Pump Testing Strategies And Associated Tribological Considerations Vane Pump Testing Methods Astm D 2882 Ip281 And Din 51389
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Author : J. Reichel
language : en
Publisher:
Release Date : 1997
Pump Testing Strategies And Associated Tribological Considerations Vane Pump Testing Methods Astm D 2882 Ip281 And Din 51389 written by J. Reichel and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Hydraulic categories.
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 is characterized by sliding line-contact wear, will be discussed here. In vane pumps, the pressure loaded tips of the vanes are under Hertz-type load in contact with the surface of the cam ring, and rotate at a high speed creating a sliding line-contact. Due to this sliding line contact, the vane pump is the best-suited instrument for determination of the anti-wear performance of hydraulic fluids within acceptable time and at reasonable expense.
Proposed Hydraulic Pump Testing For Hydraulic Fluid Qualification
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Author : HM. Melief
language : en
Publisher:
Release Date : 1997
Proposed Hydraulic Pump Testing For Hydraulic Fluid Qualification written by HM. Melief and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Hydraulic fluid categories.
The current ASTM D-2882 hydraulic vane pump test does not provide the necessary correlation required for the prediction of the lubricating properties of a hydraulic fluid in various piston pump operations. All too often, a fluid will exhibit excellent wear properties in the Vickers V-104 vane pump used in the ASTM D-2882 test, yet produce catastrophic failure at various wear interfaces in a piston pump which may consist of different material pairs, contact loading, configuration or speed. In this paper, a new piston pump test, which is conducted under cycled pressure testing conditions, is proposed. The new test will provide an excellent assessment of the lubricating properties of a hydraulic fluid under a wide variety of wear conditions.
Robert H Frith Will Scott Relating Solid Contaminant Particle Size Distribution To Flow Degradation In Hydraulic Pumps
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Author : Andrej Predin
language : en
Publisher:
Release Date : 1996
Robert H Frith Will Scott Relating Solid Contaminant Particle Size Distribution To Flow Degradation In Hydraulic Pumps written by Andrej Predin and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with categories.
Handbook Of Hydraulic Fluid Technology
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Author : George E. Totten
language : en
Publisher: CRC Press
Release Date : 1999-10-15
Handbook Of Hydraulic Fluid Technology written by George E. Totten and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999-10-15 with Science categories.
This text aims to facilitate a broader understanding of the total hydraulic system, including hardware, fluid properties and testing, and hydraulic lubricants. It provides a comprehensive and rigorous overview of hydraulic fluid technology and evaluates the ecological benefits of water as an important alternative technology. Equations, tables and illustrations are used to clarify and reinforce essential concepts.
Pump Tests For Hydraulic Fluid Wear Qualification
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Author : DJ. Heer
language : en
Publisher:
Release Date : 1997
Pump Tests For Hydraulic Fluid Wear Qualification written by DJ. Heer and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Fluid testing categories.
Modern hydraulic systems are operating at higher pressures and higher temperatures than ever before. In addition, the life and reliability of the hydraulic components and hence the hydraulic system is becoming more and more dependent upon the characteristics of the circulating fluid in the system. The hydraulic component which normally suffers most when the correct fluid is not used in the system is the hydraulic pump. Three different types of hydraulic pumps are widely used in hydraulic systems. Vane pumps have been the dominant type of pump for hydraulic systems. Gear pumps have replaced vane pumps in many applications. Piston pumps are rapidly gaining popularity. Therefore, the pump manufacturers are conducting tests to qualify fluids for use with their pumps and the fluids formulators are conducting tests to show that their formulations are compatible with hydraulic components. Unfortunately, the tests most widely used are either not industry standards or do not address problems encountered with some hydraulic pumps.
Bench Testing Of Industrial Fluid Lubrication And Wear Properties Used In Machinery Applications
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Author : George E. Totten
language : en
Publisher: ASTM International
Release Date : 2001
Bench Testing Of Industrial Fluid Lubrication And Wear Properties Used In Machinery Applications written by George E. Totten and has been published by ASTM International this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with Hydraulic fluids categories.
Discusses the selection of bench tests and testing conditions to model the lubrication and wear properties of fluids used in industrial machines and components, such as compressors, pumps, chain drives, transmissions, and bearings. Based on a June 2000 symposium held in Seattle, the 23 papers are di
Hydraulic Fluid Wear Test Design And Development
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Author : KJ. Young
language : en
Publisher:
Release Date : 1997
Hydraulic Fluid Wear Test Design And Development written by KJ. Young and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Hydraulic fluid categories.
The current widely accepted "industry standard" pump test employs a Vickers V104C (or V105C) vane pump to assess the antiwear performance of hydraulic fluids. The two main versions of the test are documented as ASTM and IP methods. This pump test method, which was first developed in the 1960s, assesses only the steel-on-steel antiwear performance of hydraulic fluids, and this under constant speed, constant volume, and constant high pressure conditions. Constant conditions are not experienced in practical applications and it can be shown that hydraulic fluids which perform well at high pressure can fail to provide adequate antiwear performance at low pressure. Although other pump types may have different materials in contact, standard universally accepted procedures have not yet emerged to cover these. It can be shown that hydraulic fluids which have good steel-on-steel antiwear performance can have poor performance in steel-on-yellow-metal contacts. There is therefore a need for wear test procedures to be developed which cover the full range of operating conditions and material types found in practical applications. This paper will review experience gained in the author's laboratory, with different hydraulic fluid types, during the development of wear test procedures which more adequately cover the range of operating conditions and material contacts experienced in practical operating environments.
The Gamma Wear Test For Hydraulic Fluid Qualifications
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Author : DJ. Heer
language : en
Publisher:
Release Date : 1997
The Gamma Wear Test For Hydraulic Fluid Qualifications written by DJ. Heer and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Fluid qualification categories.
The qualification of fluids for use in a hydraulic system has been a major concern to component manufacturers for several years. The primary issue in a hydraulic system is the compatibility of the fluid with the main pump in the system. There are several bench-type wear tests for the evaluation of fluids, however, most of these are not intended specifically for hydraulic fluids but were developed for lubrication fluids. Therefore, many engineers have relied upon the pump tests which were available in order to select the fluid to be used in their hydraulic system. The testing of a hydraulic pump to qualify a hydraulic fluid is very time consuming and expensive.