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Steering for Off-Road, Rubber-Tired Machines

OPTC1, Personnel Protection (General)
  • Ground Vehicle Standard
  • J1511_201907
  • Current
Published 2019-07-29 by SAE International in United States

This SAE Standard applies to off-road rubber-tired machines having rated speed capability exceeding 20 km/h.

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Clip Fastener Fitting

Hydraulic Hose and Hose Fittings Committee
  • Ground Vehicle Standard
  • J1467_201808
  • Current
Published 2018-08-24 by SAE International in United States
This SAE Standard covers material and dimensional requirements of steel clip fastener fittings. These fittings are intended for use in hydraulic systems on industrial equipment primarily in mining applications.
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SAE AE-7 High Temperature Components Survey, 2005

AE-7B Power Management, Distribution and Storage
  • Aerospace Standard
  • AIR5709A
  • Current
Published 2017-11-30 by SAE International in United States
To present the results of a survey taken concerning future applications for high-temperature electronics and sensors.
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Factors that Impact on Tire Structure Useful Life

VALE S.A.-C.S. VIEIRA
Published 2017-11-07 by SAE International in United States
This work describes a statistic analysis of the service life of tires applied in off-highway trucks used in open-pit mining. Understanding the process of occurrence of structural failures, correlated to the fatigue mechanism and often observed in mechanic components, is of vital importance for the current industry. Since these failures usually happen suddenly, understanding them in the most diverse components submitted to cyclic loads helps analyzing the material’s progressive deterioration along time; it acts as a return to potential improvements in the product, giving feedback of computing simulation data; and it potentially increases operational safety by mitigating the consequences it has on the productive process and on the people exposed to such failures. The tires, components that integrate great part of the on wheels vehicles fleet - amongst them: transportation equipment, industrial mobile equipment and mining equipment - are inserted in this context. Off-highway trucks commonly used in the mining industry, which are also equipped with tires, are submitted to cyclical efforts due to their own operational conditions. These trucks have remote monitoring systems that…
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Diesel Oxidation Catalysts with Ultra-Low NO2 Emissions Supported by Nano-Washcoat on Sintered Metal Fibers

Kuwait University-Osama M. Ibrahim
Published 2017-03-28 by SAE International in United States
Diesel oxidation catalysts with ultra-low NO2 emissions have been developed based on palladium-tungsten (Pd-W). The catalysts are supported by aluminum-yttrium oxides (Al2O3-Y2O3) nano-washcoat on sintered metal fibers. Elemental composition analysis was performed using Energy Dispersive Spectroscopy (EDS) to quantify the distribution of the Al2O3-Y2O3 nano-washcoats and Pd-W catalysts on the surface of the metal fibers. Initially, emissions measurements were conducted to evaluate the performance of Pd-W catalysts using small coated samples of sintered metal fibers. The results show that the catalysts selectively oxidize CO into CO2 and reduce NO2 into NO, resulting in over 90% reduction in CO emissions and up to 85% reduction in NO2 emissions. Scale-up of an Active Diesel Particulate Filter (ADPF) was then tested on a Cummins 5.9L ISB diesel engine using the US-FTP transient test cycle and the ISO 8178 8-mode test cycle. The results of both test cycles yielded similar emissions reductions of 54% and 57% in CO, 84% and 81% in HC, 95% and 91% in PM, for the US-FTP and 8-mode test cycles, respectively. Both test cycles…
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Methodology for the Effective Stabilization of Tin-Oxide-Based Oxidation/Reduction Catalysts

  • Magazine Article
  • TBMG-26349
Published 2017-02-01 by Tech Briefs Media Group in United States

NASA Langley researchers, in work spanning more than a decade, have developed a portfolio of technologies for low-temperature gas catalysis. Originally developed to support space-based CO2 lasers, the technology has evolved into an array of performance capabilities and processing approaches, with potential applications ranging from indoor air filtration to automotive catalytic converters and industrial smokestack applications. The technology has been used commercially in systems that provide clean air to racecar drivers, as well as incorporated into commercially available filtration systems for diesel mining equipment. Backed with extensive research on these technologies, NASA welcomes interest in the portfolio for other commercial and industrial applications.

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Hazard Reduction for Horizontal Earthboring Machines

MTC9, Trenching and Horizontal Earthboring Machines
  • Ground Vehicle Standard
  • J2305_201701
  • Current
Published 2017-01-18 by SAE International in United States
This SAE standard applies to horizontal earthboring machines (SAE J2022) of the following types: a Auger boring machines; b Rod pushers; c Rotary rod machines; d Impact machines. This document does not apply to specialized horizontal directional drills, mining machines, conveyors, tunnel boring machines, pipe jacking systems, micro tunnelers, or well drilling machines.
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Addendum of Self-Aligned Ion Implant to Design and Processing of SiC High-Temperature Transistors for Durable Operation Above 400 °C

  • Magazine Article
  • TBMG-25506
Published 2016-10-01 by Tech Briefs Media Group in United States

Researchers at NASA’s Glenn Research Center have developed a revolutionary new generation of silicon carbide (SiC) integrated circuit (IC) chips, setting an unprecedented benchmark in the field of high-temperature electronics. In the past, SiC ICs could not withstand more than a few hours of 500 °C temperatures before degrading or failing. Now, Glenn has successfully fabricated prototype chips that can exceed 10,000 hours of continuous operation at 500 °C. The advanced performance stems in part from the development of Glenn’s patented iridium interfacial stack (IrIS), a bondable metallization stack that prevents diffusion of oxygen and gold into silicon carbide (SiC) integrated circuits operating above 500 °C. The enhanced reliability of these components (and the transistors and logic boards they support) will enable important improvements in the control and operation of combustion engines, well-drilling, and other harsh environment systems, thereby greatly impacting operational efficiency and environmental quality. This advance in the manufacture of SiC-based electronics also fundamentally revolutionizes the opportunities for intelligent systems operating in high-temperature environments.

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Operator Controls - Horizontal Earthboring Machines

MTC9, Trenching and Horizontal Earthboring Machines
  • Ground Vehicle Standard
  • J1611_201506
  • Current
Published 2015-06-19 by SAE International in United States

This SAE Standard applies to horizontal earthboring machines of the following types:
a. Auger Machines
b. Pipe Pushers
c. Rotary Rod Machines
d. Impact Machines
e. Horizontal Directional Drilling Machines
Additional information on machines of this type may be found in SAE J2022 and SAE J2305. This document does not apply to specialized mining machinery such as conveyors, tunnel-boring machines, pipe-jacking systems, and microtunnelers.

2013 Create the Future Design: Aerospace & Defense Category Winner

  • Magazine Article
  • TBMG-17737
Published 2013-11-01 by Tech Briefs Media Group in United States