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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 fueleconomy (CAFE) target of 26 mpg (9.05 However, he added, the internal goal is “ significantly higher, ” and is targeting the GHG limit.
report not only the superior emission characteristics of the Fischer–Tropsch fuels, but also evidence that higher exhaust gas recirculation and lower excess air ratios will be a key concept of both engine and aftertreatment optimization for further fuel consumption improvement.
Further, at low loads, the ESTEC engine improves fuel consumption by 11% in the JC08 mode. Improving the vehicle fueleconomy is a must due to the climate change and energy issues. 1 and internal EGR.) To address this, at low load, Exhaust VVT is advanced and internal EGR is used. 1 and water-cooled EGR.
Also, the list of standard test procedures addressed in SAE J1711 has been expanded to cover all five major test cycle procedures (UDDS, HFEDS, US06, SC03, and Cold FTP) now being used to evaluate vehicle fueleconomy. There are two basic exhaust emissions and fueleconomy tests described in J1711. Earlier post.)
TSCi combustion minimizes heat loss to the cylinder walls and in the exhaust. The TSCi injection system can also be supplemented by advanced thermal management, exhaust gas recovery, electronic valves, and advanced combustion chamber geometries. Source: Transonic. Click to enlarge. L/100km) EPA city and 48 mpg (4.9 L/100km) highway.
Hyundai Motor America introduced the all-new 2012 Accent at the New York International Auto Show; this marks the US debut of the latest version of the popular subcompact sedan and the new Accent five-door. By precisely controlling the injection of fuel, GDI allows for better fueleconomy, increased power and reduced emissions.
Automotive News reports that Mazda plans a second generation of SkyActiv engines around 2020 that would achieve 30% better fueleconomy than the current line of Skyactiv engines. Higher compression tends to improve fueleconomy because they can achieve the same combustion temperature with a leaner mix of fuel.
liter, twin-turbo, inline, six-cylinder engine, named Hurricane, that delivers better fueleconomy 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. 1 compression ratio and uses 91 octane premium fuel.
Dennis Assanis at the University of Michigan suggests that accessing the “thermodynamic sweet spot” in high-efficiency, dilute, boosted gasoline engines has the potential for vehicle fueleconomy gains between 23% and 58%. Their paper is published in the International Journal of Engine Research. —Lavoie et al.
Chrysler Group is offering fuel-saving Engine Stop-Start (ESS) technology as standard equipment on certain models of the award-winning 2015 Jeep Cherokee mid-size SUV and 2015 Chrysler 200 mid-size sedan. ESS accounts for a one-mpg city-cycle fuel-economy gain in the Ram, the most fuel-efficient truck in its segment.
liter engine and next-generation Xtronic CVT with sub-planetary gear, offers combined fueleconomy of 34 mpg (6.9 The lighter and more aerodynamic new Sentra allows Nissan to use the more fuel-efficient 1.8-liter The engine’s internal friction has been reduced, improving efficiency. Fueleconomy is rated at 30 mpg (7.84
Ford’s all-new 2011 Ford F-Series Super Duty trucks are equipped with new diesel and gasoline engine powertrains that deliver improvements in torque, horsepower and fueleconomy. liter V-8 gas engine average a 15% improvement in fueleconomy versus 2010 models. Trucks equipped with the new base 6.2-liter axle to a 4.30
Utilizing technologies such as turbocharging, direct injection, twin independent variable camshaft timing (Ti-VCT) and six-speed transmissions, the upgraded powertrain portfolio will deliver more than 20% in fueleconomy improvement to Ford’s passenger vehicle fleet in China by 2015 while reducing tailpipe carbon dioxide emissions by 20%.
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. kgm (265 N·m) of torque.
The 2015 CR-V features increased EPA fueleconomy ratings of 27/34/29 mpg (8.7/6.9/8.1 Each journal on the forged-steel crankshaft is micro-polished to reduce internal friction. To improve smoothness throughout the rpm range and help lower noise levels, the CR-V is fitted with an internal balancer unit.
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. Exhaust gas exergy map of EcoCAR engine.
Using engine test data, Transonic simulated vehicle fuel consumption for a vehicle over the NEDC drive cycle using a 4-cylinder, 1.6L Predicted fueleconomy for such a vehicle equipped with the TSCi system was 48.8 port fuel injected spark ignition engine (39.1 g/kWh, fuel consumption was 248.1 mpg US (4.8
Key advances for Gen 3 are in weight reduction, friction reduction, and the internalexhaust cooling system. Improvements contributing to this better fueleconomy come from many areas. While the actual fueleconomy varies by model, the Jetta equipped with the 1.8T Generational progress with the EA888.
Enerpulse Technologies said that it has further identified the underlying mechanism by which its its pulsed energy ignition technology improves fueleconomy, reduces emission and delivers higher torque in spark ignited (SI) internal combustion (IC) engines. Earlier post.)
l/100 km) in 2016, the The ICCT team assessed increased consumer label fueleconomy (as opposed to the regulatory test fueleconomy) to 35 mpg (6.71 The resulting trajectory would reduce CO 2 emissions by half and increase fueleconomy by more than 60% from 2016 through 2030.
The cylinder head features an integrated exhaust manifold that separates the inner and outer pairs of cylinders into each inlet passage to the turbo. Keeping the exhaust pulses separated from the next cylinder in the firing order eliminates mixing losses and maximizes pulse energy to the turbine wheel. Larger exhaust valves.
The engineers tested a prototype 100cc engine on a dyno to gather steady-state fuel consumption, emissions, and combustion stability data over a matrix of speed, load, mixture ratio, and combustion phasing. Four engine control modes were evaluated with the goal of reducing NO x and minimizing fueleconomy impact.
The 2012 Camry again offers three powertrain choices, all of which have been enhanced for 2012 to provide better fueleconomy and more responsive performance: a revised 2.5L, 4-cylinder gasoline engine; an enhanced 3.5-liter The projected city/highway/combined fueleconomy for the LE model equates to 5.47, 6.03
Known internally and to Volkswagen enthusiasts as the “Evo4,” its two most difficult roles might be under the hood of the 2022 Golf GTI and R. A further benefit the systems offer is the ability to use longer final drive ratios in the transmission, effectively downspeeding the engine, which can positively affect fueleconomy.
This technology enables the elimination of exhaust aftertreatment and provides a cost-effective, durable and high fueleconomy solution for mid-range off-highway engine customers. The Twin Vortex Combustion System is capable of meeting Tier 4 interim/Stage 3B legislation without the need for any form of exhaust aftertreatment.
GMZ Energy, a market leader in the development of high-temperature thermoelectric generation (TEG) solutions, has successfully demonstrated a 1,000W TEG designed for diesel engine exhaust heat recapture in a Bradley Fighting Vehicle. GMZ is targeting a fueleconomy improvement of 5%. Earlier post.) Click to enlarge.
Toyota introduced the next-generation three-row 2020 Highlander SUV at the New York International Auto Show. The gas engine employs Variable Valve Timing-intelligent system by Electric motor (VVT-iE) on the intake camshaft, and VVT-i on the exhaust camshaft.
Opel will introduce the first in an all-new modular family of small-displacement three- and four-cylinder gasoline direct injection engines at the upcoming Frankfurt International Motor Show next month. The exhaust manifold is integrated inside the aluminum cylinder head, which is bolted directly to the low-inertia, water-cooled turbocharger.
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 exhaust gas recirculation in the E 250 Coupé introduced last year ( earlier post ). (It l/100 km (43.6 Source: Vent et al.
engine delivers 19 mpg US city/30 highway—a 19% improvement on city fueleconomy and a 25% improvement on highway fueleconomy compared to the 2010 model (16 mpg city/24 highway). fueleconomy improvement over non-VCT-equipped engines, according to Ford. Ti-VCT can account for up to a 4.5% liter V-6 design.
Internal GM testing of the new 2010 Equinox indicates that the front-wheel drive models with the direct-injected 2.4-liter At 32 mpg, the 2010 Equinox will offer best-in-segment highway fueleconomy and have a highway driving range of up to 600 miles. GM expects final official EPA estimates shortly. Click to enlarge.
The goal of the partnership is to leverage the complementary missions of deployment and commercialization (DOE) and fundamental research and education (NSF) to address the efficiency of the internal combustion engine (ICE). Liquid fuels have dominated transportation systems for over a century and will continue to do so for decades to come.
In the previous model, some of the gasoline engines were mounted with a forward tilt of 10 degrees, and their exhaust side faced the radiator grille, while the exhaust side of the TDI engine faced the bulkhead. The common rail fuel injection system builds a system pressure of up to 1,800 bar; the fuel is atomized by eight-hole nozzles.
Unlike exhaust-driven turbochargers, electric superchargers are driven by an electric motor. version of the vehicle but with fueleconomy and CO 2 emissions approaching those of a Prius. CPT was advised on the transaction by Turquoise International (corporate finance) and Matthew Arnold Baldwin (legal & tax).
BMW introduced the 328d Sedan at the New York International Auto, ushering in the next wave of BMW Advanced Diesel models in the US. Preliminary fueleconomy estimates for the rear wheel drive 328d Sedan are 32 mpg city/45 mpg highway/37 mpg combined (7.4, The 328d will feature BMW’s 2.0-liter Click to enlarge.
The revised hybrid system boosts output to 134 hp (up from 121) and 156 lb-ft (212 N·m) of torque (up from 146 lb-ft / 200 N·m), while EPA-estimated combined fueleconomy reaches 47 mpg. The EPA combined fueleconomy rating is 44 mpg. The upgraded hybrid system improves acceleration and mid-range power.
The Cummins team not only surpassed all fuel-economy targets, but also achieved criteria emissions lower than the stringent Tier 2/Bin 2 levels. Test cycle fueleconomy (mpg). The Highway FuelEconomy Test (HFET) and FTP-75 Test (city) cycles demonstrated fueleconomy above 35 mpg (6.72
Drive cycle fueleconomy for PFI, CDC, and multi-mode RCCI operation. Their paper is published in the International Journal of Engine Research. The process involves introduction of a low reactivity fuel into the cylinder to create a well-mixed charge of low reactivity fuel, air and recirculated exhaust gases.
Ford engineers have further optimized power, torque and fuel efficiency from the 2.0-liter liter TDCi engines and include a lean NO x trap for cleaner exhaust emissions, while friction is reduced with microscopic applications of Diamond Like Coating (DLC); engine breathing is enhanced with a Variable Nozzle Turbocharger. liter and 2.0-liter
Eaton is supplying a number of leading-edge technologies that improve fueleconomy and reduce emissions to Original Equipment Manufacturer (OEM) teams. Since 2008, Eaton’s Vehicle Group has been laser-focused on reducing emissions and fuel consumption.
The OPOC diesel engines, designed and built by EcoMotors International in the US, offer a fueleconomy improvement of up to 30% compared to today’s helicopter turbine engines. The OPOC engine is a two-stroke turbocharged diesel engine in which the intake and exhaust ports are at opposite ends of the cylinders.
The newly developed EGR (exhaust gas recirculation) cooler is 30% smaller than the smallest one currently available on the market, while offering equal performance. DENSO plans to offer this product worldwide as a solution to meet tighter fuel-efficiency and exhaust regulations. Click to enlarge.
class not including hybrid vehicles) fueleconomy and CO 2 emissions. In Japan, the New March will be launched this month equipped with idling stop technology achieving a 26 km/L fueleconomy (61 mpg US, 3.85 liter engine, along with the fuel efficiency equivalent to a 1.8-liter Its gear ratio of 7.3
Reducing the number of exhaust gas particulates, including those smaller than 23 nm, will help manufacturers meet increasingly stringent future global emissions standards. Delphi 500+ bar GDi pump. —Walter Piock, chief engineer, Gasoline Systems, Delphi Technologies. —Walter Piock.
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