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Southwest Research Institute engineers have developed the next generation of clean dieselengine technology to reduce hazardous nitrogen oxides (NO x ) and carbon dioxide emissions while minimizing fuel consumption. —SwRI Research Engineer Bryan Zavala, a member of the low NO x development team.
opposed-piston (OP) heavy-duty dieselengine achieved Ultralow NO x (ULNO x ) performance results. A key element of the achievement is the low engine-out NO x from the opposed-piston engine, which reduced the requirements for the aftertreatment system (ATS). Earlier post.)
A team at Oak Ridge National Laboratory (ORNL) has achieved diesel-like efficiency in a single-cylinder spark-ignition (SI) research engine while maintaining compatibility with stoichiometric 3-way catalyst (TWC) systems. A paper on their work is published in the International Journal of Engine Research. Splitter et al.
Rolls-Royce is supplying two mtu 16V 4000 M55RN gasengines 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 gasengines. The new engines are part of Rolls-Royce’s Green and High-Tech program.
TDI diesel for Euro 6d; SCR twin-dosing. Volkswagen continues to refine its most important dieselengine, the 2.0-liter With SCR twin dosing technology in the exhaustgas system, the diesel unit now undercuts the Euro 6d emission standard limits while also running quietly and smoothly, according to the company.
Startup ClearFlame Engine Technologies announced a partnership with Alto Ingredients, a leading producer of specialty alcohols and essential ingredients, to conduct pilot demonstrations of ClearFlame’s solution for dieselengines using low-cost ethanol in Class 8 trucks. In fact, it increases power by 25%.
A team from Empa - Swiss Federal Laboratories for Materials Science and Technology and FPT Motorenforschung reports in an open-access paper in the journal Fuel on the performance and emission characteristics of an 11-liter heavy-duty compression ignition engine which was optimized specifically for DME (dimethyl ether) combustion.
liter, heavy-duty opposed-piston, three-cylinder dieselengine 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,
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.
and Westport Innovations (NASDAQ: WPRT/TSX: WPT), are introducing an integrated powertrain package for the Cummins Westport ISX12 G natural gasengine that will provide customers with the first automated transmission to be paired with a spark-ignited natural gasengine in the North American market. Natural gas package.
This research, published in the journal Separation and Purification Technology , shows that ozone can be used to remove not only SO x but also NO x from fossil fuel combustion exhaust streams. In this study, to improve absorption performance of SO 2 and NO 2 , we added ozone in exhaustgas. 2018.12.077. 2018.12.077.
New Duramax 4-cylinder diesel. Chevrolet Sales Thailand introduced the new-generation MY14 Duramax four-cylinder turbo-dieselengine in 2.5- The new Duramax engine was engineered in Europe and the US, with global application as one of its developmental objectives. Click to enlarge. liter variants. liter and 2.8-liter
At the 17 th Supercharging conference this week in Dresden, Controlled Power Technologies (CPT) will launch what it says is the first water-cooled electric supercharger developed for “quasi-continuous” boosting of commercial dieselengines, including those developed for off highway applications. tonnes gross vehicle weight.
Vitesco Technologies, formerly (until September 2019) the Continental Powertrain Division, has won a major contract from an European vehicle manufacturer for the supply of innovative electric heating elements for diesel catalytic converters. In the Super Clean Electrified Diesel, the efficiency of exhaustgas aftertreatment rises to 97%.
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. —Patrik Soltic.
The new VW Golf is now also available in certain markets with natural gas drive: the Golf TGI is equipped with a 1.5-liter liter four-cylinder engine with 96 kW / 130 PS and three natural gas fuel tanks. The tanks are integrated into the underbody and permit a range of around 400 kilometers (WLTP) in pure natural gas mode.
Mercedes-Benz Trucks is introducing the third generation of its OM 471 heavy-duty dieselengine this year; the engine will deliver increased fuel efficiency and compliance with the strictest emissions standards such as Euro VIe. In this way, the compression ratio of the six-cylinder in-line engine has been increased from 18.3:1
Volkswagen has equipped its natural gas models of the Polo TGI and Golf TGI with a third natural gas tank made of specially coated, high-strength steel. three-cylinder engine (66 kW / 90 PS) the additional tank carries 16.5 liters and extends the natural gas storage to 91.5 On the Polo with 1.0 liters in total, or 13.8
Swiss marine power company WinGD and Korean engine builder HSD Engine have initiated a Joint Development Project (JDP) to advance the development of WinGD’s methanol-fueled big-bore engines. Under the JDP, WinGD will oversee combustion and injection research, exhaust aftertreatment requirements and engine concept design.
Section of the MkII Clarke-Brayton split-cycle engine. Motiv Engines, LLC introduced the second-generation of its engine concept dubbed the MkII Clarke-Brayton Engine, which it intends to develop into a heavy-duty on-highway engine fueled by liquid natural gas (LNG). Note the three different cylinder sizes.
IAV has developed a particularly closed-coupled dieselexhaustgas aftertreatment (EAT) system. Future diesel powertrains will need to be capable of meeting limit values that are even tighter than EU6. IAV’s developers moved the EAT system closer to the engine—specifically, the turbocharger and EAT swap places.
Relative (percent) CO 2 emissions benefit of the new natural gas variant as compared to the 220 kW dieselengine. Among its trucks on display at the upcoming IAA in Hanover, Mercedes-Benz will showcase an Econic equipped with its new Euro VI medium-duty natural gasengine (M 936NGT), which is derived from the 7.7-liter
In early 2020, UK-based independent testing firm Emissions Analytics published a study claiming that tire particulate wear emissions were 1,000 times worse than exhaust emissions ( earlier post ). x 10 11 #/km for diesels. A summary of the results is shown in the table and chart (log scale) below. —Emissions Analytics.
“Blue” hydrogen—produced through steam methane reforming (SMR) of natural gas or coal gasification, but with CO 2 capture and storage—is being described as having low or zero carbon emissions. The open access paper by Cornell’s Robert Howarth and Stanford’s Mark Jacobson is published in the journal Energy Science and Engineering.
The EU-funded HyMethShip project developed a system that innovatively combined a membrane reactor, a CO 2 capture system, a storage system for CO 2 and methanol as well as a hydrogen-fueled combustion engine to power ships. The bottom part shows how hydrogen for the engine is obtained from methanol in the reactor (blue arrow).
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. Up to 5g/kWh fuel consumption reduction in diesel mode.
The Yuchai YCK16H hydrogen-fueled engine was successfully ignited in Yulin, Guangxi. The engine, with a displacement of 15.93 liters and a maximum horsepower of 560 hp, is the largest hydrogen-fueled engine with the largest displacement and horsepower in China.
MAN Engines recently put its first two dual-fuel hydrogen-powered engines for work boats into serial operation. The engines are twelve-cylinder dieselengines of type MAN D2862 LE448, each with an output of 749 kW (1019 hp) at 2100 rpm. —Werner Kübler, Head of Development at MAN Engines.
Since 2018, Volkswagen has used only SCR exhaustgas treatment systems with its dieselengines. SCR (selective catalytic reduction) technology significantly reduces nitrogen oxides in the exhaustgas. TDI Evo engines. Ammonia is needed to reduce the nitrogen oxides produced in dieselengines.
ClearFlame Engine Technologies , a startup developing net-zero engine technology ( earlier post ), has secured $17 million in Series A financing, which will enable commercialization of the company’s innovative engine technology for the long-haul trucking, agriculture and power generation sectors.
A research consortium led by Ford Research and Innovation Center Aachen is currently investigating the technical conditions under which diesel vehicles can run on dimethyl ether (DME) as an alternative fuel. Hardware-in-the-loop test bench for the qualification of the liquefied gas dimethyl ether as a fuel.
Caterpillar engineers have been exploring a novel 6-stroke compression ignition engine cycle in search of a low-emission system that retains fuel efficiency. The fourth stroke omits the conventional exhaust event in order to recompress the combustion gases.
Mercedes-Benz has begun sales of two diesel models of the new GLE SUV which already comply with the coming Euro 6d emissions standard. The OM 656 six-cylinder dieselengine comes with 243 kW (330 hp) and 700 N·m of torque in the GLE 400 d 4MATIC (combined fuel consumption: 7.5-7.0
This increases flexibility in terms of engine design, promotes lower exhaust and fuel consumption levels, and results in even quieter operation. It can be used in dieselengines with up to 16 cylinders, as well as in on- and off-highway applications. With the CRSN3-25, up to seven individual injections are possible.
This feature also delivers the sociability benefits that contractors are looking for by reducing on-site noise and exhaust emissions. Improving fuel efficiency reduces CO 2 greenhouse gas emissions. The engine system was thoroughly tested to confirm its durability for the rigors of Stop-Start operations. Cummins Inc.
Audi of America introduced four new TDI clean diesel models for the US market this year—the Audi A8, A7, A6, Q5—along with an updated Q7 TDI, all equipped with a second-generation 3.0L V6 TDI dieselengine. ” One of our primary goals and objectives is to level the playing field for clean diesel vehicles.
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 dieselengine to operate on low-carbon and carbon-negative fuels, including 100% renewable plant-based fuels.
MAN Engines is now equipping the PistenBully 800 from Kässbohrer Geländefahrzeug AG with its MAN D3876 engine. The basis for the delivery of the in-line six-cylinder engine was the further development and adaptation of the MAN D3876 to the extreme working environment of the new high-performance snow groomer from Laupheim.
According to MAN Engines, all MAN off-road engines from the current product portfolio can be operated with regenerative diesel—also known as HVO (hydrogenated vegetable oil)—in accordance with the EN15940 standard in Europe or the US specification ASTM D975.
BMW will introduce the diesel-engined BMW 740Ld xDrive Sedan in the US. liter TwinPower Turbo dieselengine in the long-wheelbase 7 Series body and will include xDrive, BMW’s intelligent all-wheel drive system. liter inline-6 BMW Advanced Dieselengine features a single turbocharger with variable vane turbine technology.
unveiled the first generation of its new, proprietary enhanced spark-ignited (ESI) natural gas system. Using 100% dedicated natural gas as fuel, Westport’s new technology optimizes the combustion and thermal efficiencies of the engine by taking advantages of the positive properties of natural gas. mono-fuel gasengine.
In a study in the journal Fuel , researchers in India report that diesel modified with nanoparticles of aluminum (Al), iron (Fe) or boron (B) reduced specific fuel consumption by up to 7% compared with standard diesel. These “nano-fuels” showed reduced ignition delay, and longer flame sustenance. —Mehta et al. 2013.12.008.
Volkswagen’s view of powertrain technologies to minimize greenhouse gas emissions. Areas of work being focused on by Volkswagen include the development of a high-performance dieselengine delivering 100 kW (134 hp) per liter of displacement and a new 10-speed dual clutch gearbox that reduces fuel consumption. Source: Prof.
Fiat 500L running in the Bosch Diesel Challenge. MultiJet II 105 HP diesel with Start&Stop, covered the 800-kilometer (497-mile) route from Turin to Paris on an average of 27 liters (7.1 MultiJet II 105 HP diesel with Start&Stop, covered the 800-kilometer (497-mile) route from Turin to Paris on an average of 27 liters (7.1
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