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Technical Paper

Emission Reduction Potential by Means of High Boost and Injection Pressure at Low- and Mid-Load for a Common Rail Diesel Engine under High EGR Rates

2013-10-14
2013-01-2541
The emission reduction potential of high boost and high injection pressures was investigated on a 4-cylinder small bore diesel engine at high rates of exhaust gas recirculation. For this reason an external boosting system was built up, which allowed to generate the desired boost pressure independent from the engine's operating point. In order to simulate conditions comparable to a real turbocharged engine, also the influence of the turbine on the exhaust back pressure was considered. The whole measurement campaign was carried out at two load points (low- and mid-load), which represent characteristic engine operating points of the Urban Driving Cycle (UDC). On the one hand could be shown, that there is an enormous potential in the reduction of particulate matter (PM) up to 75 % and of carbon monoxide (CO) up to 15 % at the mid-load point by increasing the boost pressure.
Journal Article

A New Measurement Technique for Online Oil Dilution Measurement

2013-10-14
2013-01-2521
New trends in the development of combustion engines lead to changed engine operating conditions which also result in changed loads of the engine parts and functional components. The application of regenerative fuels and new exhaust after- treatment systems can for example lead to an increased input of fuel into the engine oil. Oil dilution is an issue that impacts the engine operation and life cycle and therefore gains importance during the development process of combustion engines. In order to improve oil dilution to preclude destructive amounts of fuel in the oil it is necessary to investigate and optimize the fuel in oil sorption and desorption processes. At the University of Applied Sciences Regensburg a new measurement technique has been developed that realizes the online analysis of the fuel quantity in the engine oil.
Magazine

Aerospace Engineering & Manufacturing 2009-05-01

2009-05-01
An eye for detail Manufacturers hone next-generation designs with advanced measurement and inspection tools. Emissions progress New European research and development efforts aim to achieve step changes in engine emissions performance. Seeing virtually everything Simulating larger systems helps engineers understand more interactions.
Magazine

Automotive Engineering: August 2023

2023-08-03
3D, no waiting! Two companies' latest techniques take additive manufacturing to the next level. Reducing the battery materials supply risk "Adjacent" strategies such as improving vehicle efficiency and advancing promising chemistries can mitigate the risks associated with today's favored battery materials. A formula for real-world experience Student engineers soak up the lessons from an army of auto-industry and racing volunteers at Formula SAE Michigan. Editorial It's about more than a connector Supplier Eye The New Wild West SAE to standardize Tesla's NACS charging connector Report: Suppliers need more info sooner on OEM EV plans Mazda again producing rotary engines Toyota to build new battery lab in Michigan New Lexus SUVs: GX for show, TX for dough? VW introduces seminal ID.Buzz in three-row layout Spotlight: 3D Printing/Additive Manufacturing Equipment & Software
Magazine

Aerospace & Defense Technology: December 2022

2022-12-01
Why are Aerospace & Defense Companies Embracing Additive Manufacturing? Simplifying Power Design with Modular Architectures The Role of DevSecOps in Modern Edge Systems Making Machines Curious Designing Multi-Channel Microwave Radio Systems Using Optical Interconnects Solving Military Satellite, Radar and 5G Communications Challenges with GaN-on-SiC MMIC Power Amplifiers Advanced Airborne Defensive Laser for Incorporation on Strike Fighter Aircraft A technical and operational analysis of an airborne "hard-kill" Ytterbium fiber laser-based anti-missile system for use on strike fighters. Additive Manufacturing Utilizing a Novel In-Line Mixing System for Design of Functionally Graded Ceramic Composites Exploring the development of a direct ink writing system with multimaterial and in-line mixing capabilities for printing inks composed of high solids-loaded ceramic particulate suspensions.
Magazine

MOBILITY ENGINEERING: March 2017

2017-03-01
A greener future for two-wheelers New BS VI emissions standards for two-wheelers are an enviro-opportunity. Additive manufacturing How 3D printing will transform the A&D support chain. Autonomous plows ahead Agriculture, construction, mining-even marine-are advancing autonomous technology to improve the productivity and safety of vehicles on the job. Bridging the power gap with 48 volts New 48-V technologies are poised to arrive in volume to help meet CO2 regulations and satisfy the "vampire" power demands of new electrical subsystems and accessories. Advances in lightweight electronics protection Conformal coatings increase reliability of aerospace and military assemblies.
Article

Boeing reports on its environmental efforts

2019-06-05
The strategy identifies 2025 as a target year to collaborate with communities around the globe and create products focused on environmental performance, emissions and waste reduction, and lower levels of water and energy consumption at work sites.
Article

Europe’s blockchain-based Smart E-Mobility Challenge will conclude this May in Germany

2019-05-07
TIoTA, an open software consortium of over 50 members organized to support the creation of a secure, scalable, interoperable, and trusted IoT ecosystem, began the E-Mobility Challenge to link IoT devices with consumers and stakeholder companies such as operators and service, communication, and payment providers within the preexisting European electric vehicle ecosystem.
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