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A team of researchers in Germany has found that the mutagenicity of diesel engine exhaust (DEE) is eliminated in the gas phase by a Diesel Oxidation Catalyst (DOC), but only slightly reduced in the particle phase. Further investigations showed that condensates of the gas phase are likewise mutagenic.
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. The four-cylinder TDI engine with the internal designation EA 288 made its debut in 2012. As previously, the 2.0 This has a volume of 3.4
2012 Honda Civic Natural Gas. To support growing consumer interest in alternative-fuel vehicles, American Honda is expanding its network of US dealers which are qualified to sell and service the Civic Natural Gas to retail customers—expanding sales to 200 dealers in 35 states. Click to enlarge. Click to enlarge.
At the Los Angeles Auto Show, Fiat unveiled the 2012 Fiat 500 Abarth—a performance variant of the 500—featuring the first application of the new 1.4-liter The 2012 Fiat 500 Abarth is also fitted with a heavy-duty five-speed manual transmission with Torque Transfer Control (TTC) system. liter MultiAir Turbo. liter engine.
Researchers in Germany and Finland report the first online measurement of gaseous sulfuric acid (GSA) in the exhaustgas of a modern heavy-duty diesel engine in an effort to quantify the role of low-vapor-pressure gases in the formation of nucleation particles (NUP). of hydrocarbons) significantly. of hydrocarbons) significantly.
liter TSI turbocharged, direct-injection engine beginning in 2012. Afterwards, the system closes the intake and exhaust valves of cylinders 2 and 3; engine ignition only occurs once per crankshaft revolution. Volkswagen utilizes information from the gas pedal sensor to detect the driver’s mode of driving. Click to enlarge.
liter natural gas engine designed to meet the increasing demand for on-highway vehicles powered by natural gas. diesel engine and will use Cummins Westport’s proven spark-ignited, stoichiometric cooled exhaustgas recirculation (SEGR) technology. G will round out our family of high performance natural gas engines.
Their SOFC system can be operated without consuming the anode fuel (a reductant) at temperatures near that of the engine exhaust to eliminate the need for reductant refilling and extra heating. The NO x concentration in the exhaust of an automotive gasoline engine with spark ignition can be as high as 4000 ppm. —Huang et al.
natural gas vehicle. natural gas vehicle, previewed in a concept form in 2011 ( earlier post ) and revealed in its production version at the Geneva auto show in March this year, in Europe. The natural gas version produces its 50 kW output at 6,200 rpm and reaches its maximum torque of 90 N·m (66 lb-ft) at 3,000 rpm.
Under laboratory-simulated diesel exhaust conditions, this mixed-phase oxide material was superior to Pt in terms of cost, thermal durability, and catalytic activity for NO oxidation. Oxidation of engine-generated NO to NO 2 is critical in diesel engine emission control for reducing NO x and carbon soot from the tail-pipe exhaust.
2012 Prius Plug-in hybrid. With seating for five, the 2012 Prius Plug-in hybrid is expected to achieve a manufacturer-estimated 87 mpge (miles per gallon equivalent) in combined driving and 49 mpg in hybrid mode, or 2.7 With lower exhaust heat, heat efficiency was enhanced, and consequently, fuel efficiency was enhanced as well.
Renault is introducing three new Energy engines ( earlier post ) in its Mégane Collection 2012: the new turbocharged, gasoline direct-injection Energy TCE 115 di; the Energy dCi 130; and the Energy dCi 110, with NEDC fuel consumption of 3.5 Versions of Mégane Collection 2012 powered by this engine consume 5.3 Click to enlarge.
Microturbine company Capstone Turbine’s ( earlier post ) sales to the oil and gas industry worldwide are at a record pace, according to Jim Crouse, Capstone’s Executive Vice President of Sales and Marketing. The microturbines will be installed in early 2012 and used in prime power and combined heat and power (CHP) applications.
On Friday, the US Environmental Protection Agency (EPA) released a Manufacturers Performance Report that assesses the automobile industry’s progress toward meeting greenhouse gas (GHG) emissions standards for cars and light trucks in the 2012 model year—the first year of the 14-year program. A note on methodology and values.
liter V10 gas engine in 2012. liter V10, enables the use of efficient, clean-burning compressed natural gas (CNG) or propane (LPG, or liquefied petroleum gas). The engine comes with hardened exhaust valves and valve seats for improved wear resistance and durability for gaseous fuel systems.
Turbo ecoFLEX natural gas version has been fitted with gas tanks made of composite material including carbon fiber. The new tank system can now hold 25 kg of natural gas, increasing the range in the CNG mode by 25%. The new natural gas Zafira Tourer will offer a range of up to 530 km (329 miles). The new Zafira Tourer 1.6
The European Union-funded PowerDriver project—a two-year, €3-million (US$4-million) research project initiated in February 2012 to turn exhaustgas waste heat into electricity using thermoelectric generator (TGEN) technology—has completed simulation work on on a potential automotive application.
The 2012 Sonic. Chevrolet displayed the all-new subcompact 2012 Sonic—called the Aveo in other parts of the world ( earlier post )— at the North American International Auto Show. The 1.4L’s turbocharger is integrated within the exhaust manifold, for reduced weight and greater packaging flexibility in small vehicles.
Their paper was presented at the ASME Internal Combustion Engine Division 2012 Fall Technical Conference by Marcello Canova, assistant professor at OSU; lead author was Philipp Skarke, from the University of Stuttgart Institute for Internal Combustion Engines and Automotive Engineering. Exhaustgas exergy map of EcoCAR engine.
Kyocera Corporation, Osaka Gas Co., The cell stack generates power through chemical reaction between hydrogen reformed from utility gas and oxygen in the air. The cell stack generates power through chemical reaction between hydrogen reformed from utility gas and oxygen in the air. Aisin Seiki Co., Chofu Seisakusho Co.,
Performance levels of the new NH 2 are more than equal to those of a tractor similar size with a conventional engine, according to New Holland, without the operational exhaust emissions. La Bellotta Energy Independent Farm.
CWI) is supplying engines for two of the largest natural gas transit fleet orders in North America to date, with combined orders of more than 900 ISL G engines. In January, LA Metro announced its plans to order 550 New Flyer Xcelsior natural gas buses, powered with the Cummins Westport ISL G 8.9 Cummins Westport Inc.
A team from Université d’Orléans (France) and IFP Energies nouvelles reports that exhaustgas recirculation (EGR) stratification may be used as a control parameter for combustion speed and therefore may contribute to the extension of the homogeneous charge compression ignition operating range. —André et al.
(MHI), as part of the Strategic Innovation Program for Energy Conservation Technologies operated by the New Energy and Industrial Technology Development Organization (NEDO), has developed a 2-megawatt (MW) 16-cylinder high-speed gas engine achieving one of the worlds highest power generation efficiency ratings in a high-speed gas engine.
has several new parts, including a new water-cooled variable-geometry turbocharger; a new high-pressure common-rail fuel delivery system; a new ExhaustGas Recirculation (EGR) system; a new intake manifold; a new cylinder head; a new cylinder block; a new balancer shaft unit; and a new Engine Control Module (ECM). Click to enlarge.
Global automotive supplier DENSO has developed a new exhaustgas recirculation (EGR) valve unit that is the first to integrate an air intake throttle valve and an EGR valve; the new unit is half the size of conventional models and requires fewer components, thus reducing costs.
The TEG technology, which converts waste heat from gasexhaust into electric energy and has the potential to improve passenger car fuel efficiency by as much as 5%. TEG & Exhaust System in Lincoln MKT. Thermoelectric Waste Heat Recovery Program for Passenger Vehicles ”, 2012 Vehicle Technologies Program Annual Merit Review.
Although gasoline direct injection engines (GDI) are a favorable technology for reducing fuel consumption and greenhouse gas emissions, recent studies have shown that GDI vehicles could emit more PM than traditional PFI (gasoline port fuel injection) vehicles as well as heavy-duty diesel trucks equipped with diesel particulate filters.
Secondly, the central combustion chamber is benefit for highly efficient scavenging via intake and exhaust ports without using valves. —Ling Huang 2012. Huang 2012. Furthermore, natural gas will be investigated as the fuel of the system. Click to enlarge. —Huang et al.
Contribution of gasoline and diesel exhaust to SOA over 0% to 50% diesel fuel use. The study determined that, depending on a region’s fuel use, diesel exhaust is responsible for 65% to 90% of vehicular-derived SOA, with substantial contributions from aromatic and aliphatic hydrocarbons. Gentner et al. Click to enlarge. Earlier post.).
The SQ5 TDI was first introduced in the fall of 2012 as the first Audi S model powered by a diesel engine. An actuator in the exhaust system, as fitted to the first SQ5 TDI, gives the V6 a sonorous sound. This offers the advantage since exhaustgas cleaning responds more quickly. lb-ft) of torque. TDI have been revised.
Engineers at Toyota Motor Corporation in Japan have determined that cooling the upper part of the cylinder liner on the exhaust side is an effective way to improve anti-knock quality—opening the way to improved engine thermal efficiency. The team presented a paper on their investigation at the recent SAE 2012 World Congress.
report not only the superior emission characteristics of the Fischer–Tropsch fuels, but also evidence that higher exhaustgas recirculation and lower excess air ratios will be a key concept of both engine and aftertreatment optimization for further fuel consumption improvement.
Also at IAA, Delphi will showcase the new second-generation High Pressure Direct Injection (HPDI) natural gas injector for heavy-duty engine applications. Delphi presented its first generation Tech Truck at IAA in 2012. Delphi co-developed the new HPDI injector with Westport.
Southwest Research Institute (SwRI) announced preliminary test results of its Dedicated-ExhaustGas Recirculation (D-EGR) demonstration vehicle ( earlier post ) at the SAE 2014 World Congress in Detroit. The D-EGR demonstrator is a converted 2012 Buick Regal with a 2.0-liter Hydrogen-enriched exhaust is routed to the intake.
If the best teams, as last was the case in the 2012 season that saw only brief safety car periods, covered 378 laps, then Audi’s high-performance TDI engine would have 317.52 Since 2012, the diesel hybrid drive of the R18 e-tron quattro has been unbeaten at La Sarthe. Click to enlarge. when the boost pressure limit has been reached.
Southwest Research Institute (SwRI) has built a demonstrator vehicle, based on a 2012 Buick Regal GS, incorporating the latest D-EGR (dedicated EGR) technology ( earlier post ), an outgrowth of SwRI’s HEDGE (High Efficiency Dilute Gasoline Engine) consortium projects ( earlier post ). In 2013, SwRI reported a 2.0-liter
launched a liquefied natural gas (LNG) locomotive tender product solution with an order for four tenders from Canadian National Railway (CN); CN is currently testing two Electro-Motive Diesel locomotives converted for operation on natural gas. CN implemented its natural gas test program in 2012. Westport Innovations Inc.
BMW will add further engines to the line-up in 2012, when the BMW ActiveHybrid 3 (using a powertrain similar to that of the ActiveHybrid 5, earlier post ) will also make its premiere. Exhaust stream from cylinders 1 and 4, and the exhaust stream from cylinders 2 and 3, follow separate spiral-shaped paths to the turbine wheel.
bp has successfully loaded the first LNG cargo from Mozambique’s offshore Coral Sul FLNG (floating liquefied natural gas) facility, the country’s first LNG project and first floating LNG facility deployed in the ultra-deep waters of the African continent. FLNG vessels are floating LNG production, storage and offloading units.
Source: SwRI, DEER 2012. During its recent Innovation Day presentations ( earlier post ), PSA Peugeot Citroën announced that it will commercialize high-efficiency gasoline engines featuring dedicated exhaustgas recirculation (D-EGR), derived from a collaborative program with SwRI in the US. Click to enlarge. Click to enlarge.
(MAN showed the Metropolis research truck, a range-extended electric refuse collection truck developed in collaboration with Benteler Engineering Services for use in the city, at IAA 2012, earlier post.) Common Rail injection reduces the generation of particles, while exhaust-gas recirculation (EGR) reduces NO x. MAN TGM CNG.
Researchers at the Pacific Northwest National Laboratory report on a highly efficient, small-scale solid oxide fuel cell system featuring PNNL-developed microchannel technology in combination with adiabatic, external steam reforming and anode gas recirculation. On the other side is a cooler gas that is heading toward the fuel cell.
Technology changes related to revised emissions standards for heavy-duty trucks are causing an increase in heavy-duty truck engine problems and a decrease in overall satisfaction with the powertrain, according to the JD Power and Associates 2012 US Heavy-Duty Truck Engine and Transmission Study. The 2012 U.S. mpg in 2011.
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