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Exhaust particle size distributions measured by ELPI (color map) and particle concentration measured by CPC (white line) during individual engine braking conditions (speed change from 32 km/h to 0 km/h). The starting point of engine braking is marked by a vertical green line, and the end point is marked by a vertical red line.
Rolls-Royce is supplying two mtu 16V 4000 M55RN gas engines to Sembcorp Marine Integrated Yard for the construction of the first liquefied natural gas (LNG)-hybrid powered tug. This is the first LNG-hybrid tug to be powered by mtu gas engines. The new engines are part of Rolls-Royce’s Green and High-Tech program.
Empa, together with FPT Motorenforschung AG Arbon, Politechnico di Milano, lubricant manufacturer Motorex and other partners, is exporing the use of DME as a fuel for heavy-duty engines. A DME test engine has been in operation on a dynamometer in Empa’s Automotive Powertrains Technologies Laboratory. Image: Empa. —Patrik Soltic.
Rolls-Royce has conducted successful tests of a 12-cylinder gas variant of the mtu Series 4000 L64 engine running on 100% hydrogen fuel. For several months, the mtu gas engine has been undergoing bench testing and continuous improvement in terms of efficiency, performance, emissions and combustion using 100% hydrogen as fuel.
The Abfallentsorgungs-Gesellschaft Ruhrgebiet mbH ( AGR ), a waste management company in Herten, North Rhine-Westphalia, Germany, has put a converted DAF CF 340 hydrogen fuel cell truck into operation as part of the EU-funded HECTOR (Hydrogen Waste Collection Vehicles in North West Europe) project.
Marine engine designer and power system integrator WinGD and engine builder Hyundai Heavy Industries’ Engine Machinery Division (HHI-EMD) will strengthen their collaboration by partnering to develop environmentally sustainable two-stroke engine technology. technologies, iCER will be available for all new X-DF engines.
Chevrolet Sales Thailand introduced the new-generation MY14 Duramax four-cylinder turbo-diesel engine in 2.5- The new Duramax engine was engineered in Europe and the US, with global application as one of its developmental objectives. —Nicola Menarini, Global Chief Engineer, GM Powertrain. Click to enlarge.
is developing a prototype 10 kW Free Piston Engine Linear Generator (FPEG) featuring a thin and compact build, high efficiency and high fuel flexibility. Poppet valves seated in a water-cooled cylinder head were actuated by hydraulic valve trains to control exhaust valve timing. Click to enlarge.
Before they can be used, however, it is essential to understand their physical properties, combustion chemistry, and characterization of the exhaust due to a number of issues associated with fuel properties—for example, a lower heating value and higher cloud point than regular diesel.
Volkswagen continues to refine its most important diesel engine, the 2.0-liter With SCR twin dosing technology in the exhaust gas system, the diesel unit now undercuts the Euro 6d emission standard limits while also running quietly and smoothly, according to the company. TDI took a step forward and was therefore given the suffix “evo”.
liter, heavy-duty opposed-piston, three-cylinder diesel engine it developed in a project funded by the California Air Resources Board (CARB) and several partners ( earlier post ) has entered fleet service with WALMART Corporation in a Peterbilt 579 tractor. liter engine. Achates Power announced that the 10.6-liter,
ClearFlame Engine Technologies, a a startup developing net-zero engine technology ( earlier post ), successfully completed an on-road demonstration of its proprietary technology that enables a heavy-duty truck diesel engine to operate on low-carbon and carbon-negative fuels, including 100% renewable plant-based fuels.
Aurobay will become part of the new global company specializing in hybrid and low- emission powertrains being formed by Renault and Geely. It also makes Volvo Cars the first car manufacturer to fully exit its participation in the development and manufacturing of internal combustion engines. Earlier post.).
Researchers at Oak Ridge National Laboratory (ORNL) have used neutron diffraction to provide noninvasive measurement of lattice strains inside components of a firing engine, thereby enabling the operando study of complex load states and thermal gradients throughout the solid materials. Camera lies along orthogonal 45° plane. Wissink et al.
Thirty-seven globally prominent scientists representing the International Journal of Engine Research have published an open-access editorial addressing the future of the Internal Combustion Engine, and stressing the importance for continued development of more efficient and even lower-emitting technologies. —Reitz et al.
In a presentation at the SAE 2014 High Efficiency IC Engine Symposium and then in a paper given at SAE 2014 World Congress, Mark Sellnau, Engineering Manager, Delphi Advanced Powertrain, reported that Brake Specific Fuel Consumption for the 1.8L Earlier post , earlier post.). Background. Earlier post.) DOE UFEV program targets.
Wear and tear from brakes, tires and road surfaces will soon overtake car exhaust fumes as the leading source of fine particles released into the air by road traffic, according to a new OECD report. Heavy electric vehicles with long-distance batteries could compound the problem even as they slash emissions from engineexhaust.
Bentley will cease production of its 12-cylinder gasoline engine in April 2024, by which time more than 100,000 examples of the iconic W12 will have been handcrafted in the company’s Dream Factory in Crewe, England. Development work has concluded recently on the most powerful version of the W12 ever created.
opposed-piston heavy-duty diesel engine has achieved performance results that comply with pending 2027 requirements of the US Environmental Protection Agency (EPA) and California to reduce sharply emissions of nitrogen oxides (NO x ). liter engine. Achates Power’s innovative 3-cylinder, 10.6L Rendering of the 10.6-liter Earlier post.).
Achates Power was recently awarded a $5-million contract from the US Army to expand the family of opposed-piston engines for military vehicles. The project, awarded in late-2020, builds upon the success of the Advanced Combat Engine (ACE). to develop the Advanced Combat Engine for the US Army. Earlier post.) —John S.
IAV has developed a particularly closed-coupled diesel exhaust gas aftertreatment (EAT) system. Under the EU6 standard, diesel engines are still allowed to emit up to 80 mg NO x /km milligrams of nitrogen oxides per kilometer—not only under the legal framework in the cycle but also in respect of increasingly tighter RDE requirements.
Researchers at Oak Ridge National Laboratory have used on-board catalytic fuel reforming to increase the brake efficiency of a multicylinder, stoichiometric spark-ignited (SI) engine by increasing EGR dilution tolerance. The first category is where fuel is reformed in one or more cylinders in an engine using noncatalytic processes.
On-road heavy-duty vehicles are an essential part of the state’s economy. The Proposed Heavy-Duty Engine and Vehicle Omnibus Regulation would implement two measures included within California’s Revised 2016 State Strategy for the State Implementation Plan: “Low-NO x Engine Standard” and “Lower In Use Emission Performance Level.”.
All models of the new A-Class are also powered by new diesel and gasoline engines. New, efficient gasoline and diesel engines. All the new A-Class models are powered by new, efficient engines: two new four-cylinder gasoline engines are available at market launch. Further new engines will follow.
T-GDi—the first engine to feature the technology. CVVD optimizes both engine performance and fuel efficiency while reducing emissions. When the vehicle is maintaining a constant speed and requires low engine output, CVVD opens the intake valve from the middle to end of the compression stroke. T-GDi engine.
A team led by researchers from Oak Ridge National Laboratory (ORNL) is developing a lower-cost cast aluminum (Al) alloy capable of at least a 50 ˚C temperature increase over the current cylinder head alloys 319 and 356 for use in light duty engines. Materials for exhaust and energy recovery. Earlier post.).
In a study on the effect of exhaust particles from aircraft turbine engines on human lung cells, Swiss researchers have found that cells reacted most strongly to particles emitted during ground idling. Turbine engine in the testing facility (not running). Image: University of Bern /SR Technics Switzerland AG.
As part of its 2014 ASCR Leadership Computing Challenge ( ALCC ) awards of processor time (totaling more than 3 billion processor hours), the US Department of Energy’s (DOE) Office of Science has awarded 15 million hours on Oak Ridge National Laboratory’s (ORNL) Titan supercomputer to a project led by General Motors, and 17.5
to build the GMET4 engine—the Company’s 2.0-liter liter Global Medium Engine inline four-cylinder turbo that is currently offered on the Jeep Wrangler and Jeep Cherokee. liter turbocharged I-4 engine is part of FCA’s Global Medium Engine family. engine with engine stop start (ESS). While the 2.0-liter
A well-known automaker has placed an order with Rheinmetall Group subsidiary Pierburg for exhaust gas recirculation (EGR) modules, with a lifetime value of around €300 million. Part of the actuators will be produced at the Pierburg plant in Abadiano, Spain, with the company’s Berlin plant supplying the electric bypass actuators.
ClearFlame Engine Technologies, a company developing net-zero engine technology ( earlier post ), has hit a number of key milestones through multiple partnerships with customers, manufacturers, and fuel providers. Reviva has been providing quality remanufactured engines and engine components for more than 70 years.
The BMW M Hybrid V8 is powered by the P66/3 eight-cylinder turbo engine with supplementary electric drive. The combustion engine is based on the DTM unit used in the BMW M4 DTM in 2017 and 2018. BMW M Hybrid V8 engine. That saved us time and a lot of money and was therefore efficient and sustainable.
liter engine with 40% thermal efficiency (41% in hybrid applications); a new 2.0-liter liter hybrid system; and new 4WD systems—one for gasoline-engined cars, one for hybrids—based on the Toyota New Global Architecture (TNGA). liter Dynamic Force Engine, a New 2.0-liter As a result, the newly developed 2.0-liter
a Sumitomo Corporation Group company, jointly demonstrated a new waste heat recovery system based on a thermoelectric generator (TEG), which generates electrical power via exhaust gas heat. The TEG unit was installed in the exhaust pipe at the downstream of the catalyst. Yamaha Corporation and Sumitomo Corporation Power & Mobility Co.,
These include exhaust gas waste heat, which accounts for 50% of the energy from combusted fuel, but also liquid sources at lower temperatures, such as engine jacket water. Savings that offset fuel costs are only one part of the picture, since methanol and ammonia are both more expensive and less energy-rich.
Volkswagen has developed and deployed a gasoline engine that offers diesel-like fuel economy but is significantly cheaper to buy. This enables further reduced fuel consumption and emission levels plus powerful torque even at low engine speeds. Compared with other gasoline engines, the intake valves of the 1.5
Power management company Eaton’s Vehicle Group has demonstrated cylinder deactivation (CDA) as an effective technology for meeting future global emissions requirements for diesel-engine powered commercial vehicles. The assessment was developed by CARB to replicate real-world urban tractor and vocational vehicle operations at low engine loads.
Fuel Efficiency Improvement Technologies for Conventional Stoichiometric Gasoline Direct Injection Multi-Cylinder Internal Combustion Engine. Novel ignition systems may be considered as part of an improved technology package if they are necessary to employ other parts of the technology package.
Mercedes-Benz is expanding Vito van range with enhancements including new high-torque four-cylinder diesel engines for the Vito Tourer with passenger car approval. In comparison to the predecessor, the new OM 654 diesel engine range reduces emissions and fuel consumption while also optimizing noise and vibration comfort.
There are widespread policy assumptions that the phase-out of gasoline and diesel internal combustion engines will over time lead to much reduced emissions of Volatile Organic Compounds (VOCs) from road transport and related fuels. While some VOCs are released in exhaust, others may arise from an unexpected source—e.g.,
Specific BSFC improvements from the D-EGR engine relative to baseline engine. Overall, the engine offered a 13.1% Southwest Research Institute (SwRI) announced preliminary test results of its Dedicated-Exhaust Gas Recirculation (D-EGR) demonstration vehicle ( earlier post ) at the SAE 2014 World Congress in Detroit.
The layout with the combustion engine at the front and Electric Drive Unit on the rear axle offers numerous advantages. In addition, electrification helps to maintain or even exceed today’s high AMG performance level in the future, even with smaller combustion engines. Comfort drive mode: the start-up is mostly electric.
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