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Developed for hybrid electric vehicles (HEVs) and plug-in hybrid electric vehicles (PHEVs), BorgWarner’s innovative Exhaust Heat Recovery System (EHRS) can improve fuel economy by up to 8.5% The EHRS reduces mechanical losses by using the energy conserved within the exhaustgas. and reduce emissions significantly.
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 exhaust sample was taken from the exhaust manifold. The exhaust sample was taken from the exhaust manifold.
Jaguar has unveiled the C-X75 concept, an extended range electric vehicle that uses twin gas micro-turbines from Bladon Jets to power two switched reluctance generators from SR Drives. The driver and passenger are seated ahead of a sealed airbox that houses the micro gas-turbines. Click to enlarge. Earlier post.) C-X75 powertrain.
Researchers at Oak Ridge National Laboratory (ORNL) have quantified the fuel economy effects of some common driver practices and vehicle accessories or alterations—including underinflated tires, open windows, and rooftop and hitch-mounted cargo. liter four-cylinder engine, also suffered as its fuel economy dipped 22% from 42.5
and Westport Innovations (NASDAQ: WPRT/TSX: WPT), are introducing an integrated powertrain package for the Cummins Westport ISX12 G natural gas engine that will provide customers with the first automated transmission to be paired with a spark-ignited natural gas engine in the North American market. Natural gas package.
liter ESTEC (Economy with Superior Thermal Efficient Combustion) in-line 4-cylinder Gasoline Engine (1NR-FKE). Improving the vehicle fuel economy is a must due to the climate change and energy issues. The combination of these (with the modified exhaust manifold producing the bulk of the recovery), brought torque up to 105 N·m.
At the US Department of Energy’s (DOE’s) Annual Merit Review meeting in Washington, DC last week, Michael Ruth from Cummins noted that the DOE program target for the project is a fuel economy (CAFE) target of 26 mpg (9.05 Exhaust system configuration. Earlier post.). l/100 km) for a vehicle of that size.
Audi is adding a new member to its A3 family: the A3 Sportback 30 g-tron natural gas vehicle. Operation with natural gas or biomethane makes the compact model economical and more climate-friendly with low emissions. With full gas tanks, the car has an NEDC range of up to 495 (307.6 The A3 Sportback 30 g-tron 1.5
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.
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 gas engine.
Internal combustion engine’s performance and efficiency are currently governed by variable valve control technology that adjusts the timing of valve opening and closing and depth of the valve’s opening, with engine power produced through the fuel intake-compression-expansion-exhaustion cycle.
D-EGR is an engine and control concept that combines fuel reforming to produce hydrogen with high levels of exhaustgas recirculation (EGR) to achieve very high levels of thermal efficiency. In 2013, SwRI reported a 2.0-liter
liter Pentastar V-6, will experience estimated fuel-economy improvements of up to 3%, compared with the conventional vehicle-engine pairings. ESS accounts for a one-mpg city-cycle fuel-economy gain in the Ram, the most fuel-efficient truck in its segment. Chrysler 200 customers who opt for the 2.4-liter The 24-valve engine’s 10.7:1
In both versions it unites various advanced technologies: additional indirect injection supplementing the direct injection of the FSI; the Audi valvelift system (AVS) to adjust the valve stroke on the exhaust side; and thermal management, which uses a rotary valve module and an exhaust manifold integrated into the cylinder head.
Future advanced engine and powertrain configurations must address emission and fuel economy requirements for worldwide applications, transition to bio-fuels, and synergies with future powertrain trends. improvement in fuel economy over the baseline engine for the Metro-Highway (M-H) cycle. improvement in fuel economy over the baseline.
liter, twin-turbo, inline, six-cylinder engine, named Hurricane, that delivers better fuel economy and fewer emissions than larger engines while at the same time generates more horsepower and torque than many competitors’ naturally aspirated V-8 and boosted six-cylinder power plants. Stellantis revealed its new, 3.0-liter, of torque).
The analysis used the Ohio State University EcoCAR, a student prototype PHEV, as the basis for the preliminary fuel economy evaluation. On the other hand, it is well known that in an internal combustion engine up to 35% of the energy developed by the fuel combustion is dissipated in the exhaust gases. Skarke et al. Click to enlarge.
Better efficiency also means better reliability, economy as well as lower emission levels. The new Duramax engine uses an electric EGR valve for greater precision and a larger EGR cooler to further reduce recirculated exhaustgas temperature. —Nicola Menarini, Global Chief Engineer, GM Powertrain. Click to enlarge.
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. This follow-on light-duty vehicle project, funded in 2011, has a target of a 5% fuel economy improvement. Resources. ????
liter V-6 EcoDiesel is also expected to lead the segment on fuel economy. Pricing and fuel economy ratings will be announced closer to the truck’s on-sale date. liter EcoDiesel V-6 delivers increased torque and horsepower, along with fuel economy and minimal levels of noise, vibration and harshness (NVH). liter EcoDiesel.
Volkswagen has developed and deployed a gasoline engine that offers diesel-like fuel economy but is significantly cheaper to buy. By way of comparison: a conventional turbo system diverts part of the exhaustgas stream needed for the forced induction away from the turbine via a wastegate valve as a function of its operating state.
IPG‘s flameless combustor uses the turbine exhaust and high heat transfer effectiveness through the IPG regenerator unit. Not only can IPG’s technology deliver low-emission, pollutant-free energy on today’s cleaner fuels.
Ford says the engine can deliver up to 15% better fuel economy than comparable six-cylinder engines. Featuring a twin-scroll turbocharger and a three-port integrated exhaust manifold (IEM), the 2.3-liter Two pivotal factors are the three-port integrated exhaust manifold cylinder head and a twin-scroll turbocharger.
Future fuel economy standards will result in lower exhaustgas temperatures and limit the use of high-temperature SCR. The project “Development of New Ruthenium Catalysts for the Low-temperature Reduction of NO x Emissions from Vehicle Exhaust” will be led by SwRI Principal Scientist Dr.
liter, four-cylinder engine of the new CLA 250 is a member of the BlueDIRECT family of gasoline engines, and was first applied in combination with exhaust-gas turbocharging and external high-pressure exhaustgas recirculation in the E 250 Coupé introduced last year ( earlier post ). (It Source: Vent et al.
Excess heat and pressure from the exhaustgas are recaptured by the turbo-compound unit. Dynamic torque integrates seamlessly with all three available drive modes: performance, economy, and extra economy. Volvo Trucks North America’s latest-generation D13 Turbo Compound engine is now standard on all VNL models.
Split, parallel, cross-flow cooling with integrated exhaust manifold. Cycle-based CAE analysis of fuel economy contribution of critical technologies. Advantages of the micro-stratified charge capability include good fuel economy, low NO x , low PM, acceptable NVH, good stability, and “practical controls”, Weaver said.
Five technology paths for very-low-NO x and GHG emissions from heavy-duty natural gas engines. The “Pathways to Near-Zero-Emission Natural Gas Heavy Duty Vehicles” report, authored by GNA on behalf of Southern California Gas Co. —“Pathways to Near-Zero-Emission Natural Gas Heavy-Duty Vehicles”. Click to enlarge.
Power management company Eaton has expanded its portfolio of valvetrain solutions for diesel off-highway vehicles to help OEMs reduce emissions and improve fuel economy. This technology enables precise valve lift control through HLA, coupled with engine braking capability, which in turn helps reduce emissions and improve fuel economy.
applied partially premixed combustion mode to a direct-injection natural gas engine based on a 3D model coupled with a dual-fuel chemical kinetic mechanism (n-heptane/natural gas). Owing to the advantages in emission reduction and reserves, natural gas engines are more and more concerned.
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.
US EPA fuel economy estimates are not yet available, however, other models equipped with this engine have seen a 25 – 30% improvement in fuel efficiency over their direct gasoline-powered counterparts. The system plays a significant role in the reduction of fuel consumption as well as exhaust emissions.
improvement in city fuel economy (24.5 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. Hydrogen-enriched exhaust is routed to the intake. mpg) and a 9.2%
for XSE grade, which uses a dual-outlet exhaust). Most AWD grades have 202 hp, while the Camry XSE AWD grade has 205 hp with dual exhaust. A variable cooling system, variable oil pump and a cooled exhaustgas recirculation (EGR) system all contribute to the engine’s high thermal efficiency and outstanding fuel economy.
In addition there are two gas engines, adaptable to run on biogas, compressed natural gas (CNG) or liquefied LNG. The exhaust brake output is 320 kW at 2,400 r/min. The exhaust brake is rated at 256 kW at 2,400 r/min. The exhaust brake produces 190 kW at 2,400 r/min. Additional outputs will follow.
l/100 km) in 2016, the The ICCT team assessed increased consumer label fuel economy (as opposed to the regulatory test fuel economy) to 35 mpg (6.71 The resulting trajectory would reduce CO 2 emissions by half and increase fuel economy by more than 60% from 2016 through 2030. Starting from a baseline 26 mpg (9.04
Ram Truck announced EPA fuel economy ratings for the 2020 Ram 1500 powered by the new 3.0-liter Ram 1500’s unsurpassed 29 mpg highway fuel economy rating for 4x4 models is significant in that 4x4 models represent more than 80% of the U.S. Redesigned intake ports to improve engine performance and fuel economy. 1, from 16.5:1,
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.
Cobra shares many elements of its design with CPT’s turbine integrated gasexhaust recovery system known as Tigers ( earlier post ), which is currently under development for installation next year in a technology demonstrator part funded by the UK Technology Strategy Board. —CPT program manager Andy Dickinson.
liter medium-duty, factory-built dedicated natural gas engine for school bus, shuttle bus, medium-duty truck and vocational applications. G natural gas engine is based on the Cummins ISB6.7 G natural gas engine is based on the Cummins ISB6.7 g/bhp-hr PM and 2016 US greenhouse gas and fuel economy regulations.
The EcoDiesel V-6 engine also features low-friction pistons to improve fuel economy, reduce greenhouse gas emissions and provide an enhanced combustion system – injector nozzle, piston bowl and glow plug with integrated combustion pressure sensor to optimize combustion. Transmissions. 1 crawl ratio.
The new Corolla SE Hybrid grades (FWD and AWD) inherit the Gas SE’s sport suspension and the firmer-feel Electronic Power Steering. liter Atkinson-cycle four-cylinder gas engine with two motor-generators through a planetary-type continuously variable transmission. The EPA combined fuel economy rating is 44 mpg.
Using technology from the 2016 Chevrolet Volt propulsion system ( earlier post ), Malibu Hybrid will offer an estimated combined fuel economy rating exceeding 45 mpg (5.22 The engine also features Chevrolet’s first application of ExhaustGas Heat Recovery, or EGHR, technology, which uses exhaust heat to warm the engine and cabin.
Fuel economy targets for the vehicle are 22.4 At the recent 2103 SAE World Congress, Cummins discussed key engine technology enablers—including air-handling, fuel system, and base engine design— and development of the combustion system that will help in achieving the target emission levels and fuel economy. Earlier post.)
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