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Insert - Thin Wall, Self-Locking Short and Long Length Installation and Removal of

E-25 General Standards for Aerospace and Propulsion Systems
  • Aerospace Standard
  • AS3507C
  • Current
Published 2019-07-01 by SAE International in United States
This SAE Aerospace Standard (AS) provides minimum design, installation (by manual and power methods) and removal requirements for AS3504 and AS3505 thin wall inserts and is applicable when specified on engineering drawings or in procurement documents.
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Coupling Assemblies, Quick Disconnect, Automatic Shutoff

G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
  • Aerospace Standard
  • AS7413A
  • Current
Published 2019-04-23 by SAE International in United States
This specification establishes requirements for automatic shutoff, quick-disconnect coupling assemblies for fuel and oil lines.
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Design and Development of a Dry Sump Lubrication System for a Formula SAE Race Car

VIT University-Rishabh Khanna, Akshyt Bimal Kumar, Kartik Vijaykumar, K Nantha Gopal, Ashok B, Sahil Sharma, Vignesh Ravi
Published 2019-01-09 by SAE International in United States
A Formula student team aims to develop and improve their designs every year, as far as the powertrain aspect is considered performance output and enhancement is the primary aim, and for engine to perform better, the health of the engine is the most important parameter; hence the lubrication system of the vehicles powertrain should be improved to get the most out of the engine. The primary challenge for the development of a new lubrication system was the inability to replicate the performance given by stock wet sump with the self-designed custom dry sump. However, the advantages can outnumber the cons of implementing a custom dry sump lubrication system. The work brought together in this paper highlights the meticulous design procedure for implementing a custom made dry sump system onto a 4-cylinder in-line Honda CBR600RR engine. Moreover, the research paper brings about the extensive process undertaken which includes theoretical calculations, computational analysis and experimental validation of the whole assembly the dry sump system. The design procedure makes use of software like MATLAB, Star CCM+ and SolidWorks.…
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Glossary of Terms Related to Fluid Filters and Filter Testing

Filter Test Methods Standards Committee
  • Ground Vehicle Standard
  • J1124_201810
  • Current
Published 2018-10-04 by SAE International in United States
Over the years during which fluid filtration systems have been developing, many terms have come into use for descriptions of characteristics of filter media, filter assemblies, test methods, and test materials. Inevitably, some terms have been applied loosely, so that the same term may have different meaning to different people, or in different frames of reference. Recognizing the need for clearly defined terms, which can have only one meaning for all persons in all circumstances, so that documents dealing with standard methods of evaluation of filters will have only one interpretation, the Filter Test methods Subcommittee of the SAE Engine Committee has compiled this Glossary of related terms. No attempt has been made to produce an all-inclusive document, containing definitions of all terms related to all types of fluid filters. Instead, the Glossary is confined to the terms likely to be encountered in relation to filters for lubricating oil and fuels. At the same time, we have recognized that some terms are common to all types of fluid filters, and have been careful to avoid…
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Analysis of the power loss reduction in automotive turbo-charger systems with independent lubrication

Instituto Federal do Espírito Santo - IFES-A. L. D’Alcantara, L. H. P. Deoclecio, F. A. F. Monhol
Published 2018-09-03 by SAE International in United States
A typical turbocharger has in its interior an shaft that supported by two bearings, which are normally hydrodynamically lubricated, that is, the friction reduction between the metal parts takes place through the formation of a lubricating oil film. This lubricating oil film may reduce friction about to a thousand times; however, since it is a liquid, there is a resistance to the shaft movement proportional to the oil viscosity. In the case of a turbocharger coupled to an internal combustion engine, it has the purpose of increasing the power produced by the engine itself; therefore, this resistive force must be as small as possible, so that the system efficiency may increase, as well as the power output. A turbocharger-engine system uses the same lubrication system, where the lubricating oil must have characteristics that meet the engine requirement, where the operating conditions are more stringent. However, the lubricating oil of the turbocharger should only be resistant to the same working temperature of the engine environment, allowing the use of a less viscous lubricant. The present work…
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Insert - Thin Wall, Self-Locking Short and Long Length Installation and Removal of

E-25 General Standards for Aerospace and Propulsion Systems
  • Aerospace Standard
  • AS3507B
  • Historical
Published 2018-08-23 by SAE International in United States
This SAE Aerospace Standard (AS) provides minimum design, installation (by manual and power methods) and removal requirements for AS3504 and AS3505 thin wall inserts and is applicable when specified on engineering drawings or in procurement documents.
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Guide to Engine Lubrication System Monitoring

E-32 Aerospace Propulsion Systems Health Management
  • Aerospace Standard
  • AIR1828C
  • Current
Published 2018-04-10 by SAE International in United States
This SAE Aerospace Information Report (AIR) provides information and guidance for the selection and use of technologies and methods for lubrication system monitoring of gas turbine aircraft engines. This AIR describes technologies and methods covering oil system performance monitoring, oil debris monitoring, and oil condition monitoring. Both on-aircraft and off-aircraft applications are presented. A higher-level view of lubrication system monitoring as part of an overall engine monitoring system (EMS), is discussed in ARP1587. The scope of this document is limited to those lubrication system monitoring, inspection and analysis methods and devices that can be considered appropriate for health monitoring and routine maintenance. This AIR is intended to be used as a technical guide. It is not intended to be used as a legal document or standard.
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A Guide to APU Health Management

E-32 Aerospace Propulsion Systems Health Management
  • Aerospace Standard
  • AIR5317A
  • Current
Published 2018-04-09 by SAE International in United States
AIR5317 establishes the foundation for developing a successful APU health management capability for any commercial or military operator, flying fixed wing aircraft or rotorcraft. This AIR provides guidance for demonstrating business value through improved dispatch reliability, fewer service interruptions, and lower maintenance costs and for satisfying Extended Operations (ETOPS) availability and compliance requirements.
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Development of Engine Lubrication System with New Internal Gear Fully Variable Discharge Oil Pump

SAE International Journal of Fuels and Lubricants

Aisin Seiki Co., Ltd.-Yuki Nishida
Toyota Motor Corporation-Michitaka Yamamoto, Takayuki Hosogi, Tetsuji Watanabe
  • Journal Article
  • 2017-01-2431
Published 2017-10-08 by SAE International in United States
Over the past decades, the automotive industry has made significant efforts to improve engine fuel economy by reducing mechanical friction. Reducing friction under cold conditions is becoming more important in hybrid vehicle (HV) and plug-in hybrid vehicle (PHV) systems due to the lower oil temperatures of these systems, which results in higher friction loss. To help resolve this issue, a new internal gear fully variable discharge oil pump (F-VDOP) was developed. This new oil pump can control the oil pressure freely over a temperature range from -10°C to hot conditions. At 20°C, this pump lowers the minimum main gallery pressure to 100 kPa, thereby achieving a friction reduction effect of 1.4 Nm. The developed oil pump achieves a pressure response time constant of 0.17 seconds when changing the oil pressure from 120 kPa to 200 kPa at a temperature of 20°C and an engine speed of 1,600 rpm. Test results confirmed that the developed oil pump controlled the oil pressure with an undershoot of about 12%. The oil jets were also stopped from -10°C. The…
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Fault Detection and Diagnosis of Diesel Engine Lubrication System Performance Degradation Faults based on PSO-SVM

Beijing Institute of Technology-Yingmin Wang, Tao Cui, Fujun Zhang, Sufei Wang, Hongli Gao
Published 2017-10-08 by SAE International in United States
Considering the randomness and instability of the oil pressure in the lubrication system, a new approach for fault detection and diagnosis of diesel engine lubrication system based on support vector machine optimized by particle swarm optimization (PSO-SVM) model and centroid location algorithm has been proposed. Firstly, PSO algorithm is chosen to determine the optimum parameters of SVM, to avoid the blindness of choosing parameters. It can improve the prediction accuracy of the model. The results show that the classify accuracy of PSO-SVM is improved compared with SVM in which parameters are set according to experience. Then, the support vector machine classification interface is fitted to a curve, and the boundary conditions of fault diagnosis are obtained. Finally, diagnose algorithm is achieved through analyzing the centroid movement of features. According to Performance degradation data, degenerate trajectory model is established based on centroid location. And normal faults and performance degradation faults of diesel engine lubrication system are diagnosed. Results show that classification accuracy of the proposed PSO-SVM model achieved is 95.06% and 97.04% in two verify samples,…
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