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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 ). As testament to the filtration efficiency of the latest gasoline particulate filters (GPFs), tailpipe mass emissions are now as low as 0.02
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.
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 Vehicle fuel efficiency on FTP. +35% Earlier post , earlier post.). Background.
Opel revealed more details about its new mid-size gasoline engine family at the Aachen Colloquium in Germany. liter, four-cylinder, SIDI (spark ignition direct injection) ECOTEC Turbo engines, which begin Opel’s renewal of its powertrain portfolio, deliver improved fuel consumption, performance and refinement. Earlier post.)
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 Cost of the new engine relative to gasoline baseline. Exhaust system configuration. Earlier post.).
The SL 43 features an M139 in-line two-liter, four-cylinder gasoline engine with an electric exhaust gas turbocharger—used for the first time in a production vehicle. The electric exhaust gas turbocharger is a fascinating example of the extensive transfer between Formula 1 technology and the development of production vehicles.
This brief analysis examines the relative cost of the energy from milk and gasoline. Currently, a gallon of gasoline (with ethanol) contains 120,286 Btu of energy. The average price of regular gasoline in September 2020 was $2.183 per gallon. Therefore, the cost of 1,000 Btu from regular gasoline was $0.02.
ExxonMobil, Corning and Toyota have collaborated to develop an Onboard Separation System (OBS) to optimize gasoline engine efficiency and performance. The system, say the researchers, offers the potential to exploit most of the benefits of operating on premium high octane fuel while using less expensive regular grade more effectively.
liter V8 engine for automobiles that is fueled entirely by hydrogen. In Japan, Toyota and other automotive-related companies are about to begin a collaborative effort to expand the range of fuel options for internal combustion engines. Hydrogen: not a stand-in for gasoline. Earlier post.). —Takeshi Yamada.
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. Typically, you incur a fuel penalty when reforming fuel. —Jim Szybist, ORNL. Earlier post.]
The X Mini 70cc rotary gasoline engine. HEHC is an improved thermodynamic cycle optimized for fuel efficiency that combines features of four existing cycles: high compression ratio (Diesel); constant volume (isochoric) combustion (Otto); over-expansion to atmospheric pressure (Atkinson); and internal cooling with air or water (Rankine).
Toyota Motor Corporation has developed a new series of fuel-efficient gasoline engines that achieve improved thermal efficiency. liter gasoline engine in which Toyota is employing the Atkinson cycle—normally used in dedicated hybrid engines—and a compression ratio of 13.5:1. Engines Fuel Efficiency'
improvement in city fuel economy (24.5 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. liter gasoline direct injection engine. liter gasoline direct injection engine.
Volkswagen has developed and deployed a gasoline engine that offers diesel-like fuel economy but is significantly cheaper to buy. TSI ACT BlueMotion delivers 96 kW / 130 PS with combined fuel consumption of 4.8 This enables further reduced fuel consumption and emission levels plus powerful torque even at low engine speeds.
Reducing the number of exhaust gas particulates, including those smaller than 23 nm, will help manufacturers meet increasingly stringent future global emissions standards. —Walter Piock, chief engineer, Gasoline Systems, Delphi Technologies. Delphi 500+ bar GDi pump.
Simulated fuel economy for 1.8L GDCI showed a predicted fuel economy improvement of 65%, 28%, and 28% for the FTP City, Highway, and US06 cycles, respectively, for a combined FE improvement of 50%. GDCI Engine and 2.4L GDi baseline engine. Source: Sellnau et al. Click to enlarge. Earlier post.). Earlier post.). Hoyer et al.
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
liter four-cylinder engine with 96 kW / 130 PS and three natural gas fuel tanks. The engine of the quasi-monovalent drive system is powered primarily with CNG (Compressed Natural Gas), but can also run on gasoline. The Golf TGI is also equipped with a gasoline tank with a useful capacity of 9 liters (2.4
Within the scope of an agreement signed in November 2017 ( earlier post ), Eni and FCA have developed “A20”, a new fuel with a low level of emissions due to its 15% methanol and 5% bio-ethanol alcohol content. An initial test run of five Fiat 500s from the Eni Enjoy fleet in Milan ended successfully a few weeks ago.
The ORNL team conducted engine experiments with both 91 RON E10 gasoline and liquified petroleum gas (LPG). 1) with cooled exhaust gas recirculation (EGR) and high compression ratio (13.3:1 1 for both fuels, with additional runs at 16.8:1 higher H/C ratio) than gasoline. The unique high stroke-to-bore engine design (1.5:1)
The Audi R18 e-tron quattro diesel hybrids ( earlier post ) that will race at Le Mans this coming weekend (14-15 June) are the lightest and most fuel efficient LMP1 racers has yet to bring to the track. New WEC regulations require up to 30% less fuel use this year. liter V-4 gasoline engine that is compact and lightweight.
Researchers at the University of Minnesota are proposing a novel strategy that simultaneously identifies (a) the most desirable biomass-derived chemical products for an application of interest, such as fuels, and (b) the corresponding synthesis routes.
Its turbocharger with variable turbine geometry makes optimal use of the exhaust gas energy for early and harmonious torque development. Operation with the knock-resistant fuel CNG enables a higher 12.5:1 Average NEDC fuel consumption for the four-cylinder is 3.6 – 3.5 The two filler necks are placed under a common fuel flap.
liter ESTEC (Economy with Superior Thermal Efficient Combustion) in-line 4-cylinder Gasoline Engine (1NR-FKE). Further, at low loads, the ESTEC engine improves fuel consumption by 11% in the JC08 mode. Further, at low loads, the ESTEC engine improves fuel consumption by 11% in the JC08 mode. Performance recovery.
The powertrain range for the Estate, which includes diesel, gasoline and hybrid options, features a new 1.6-liter Compared with the predecessor Estate, certain members of the line-up consume in excess of 20% less fuel. Fuel consumption for both variants is rated at 4.3 The gasoline engines. l/100 km (54.7 mpg US) NEDC.
For MY 2012 in the US, FCA was compliant with fuel economy requirements, but had negative credit generation due to model mix. FCA’s twin drivers are regulatory compliance and developing and producing increasingly more fuel-efficient vehicles which customers want to buy, he said. Direct fuel injection. Click to enlarge.
with technologies such as direct fuel injection, variable valve timing, exhaust-driven turbochargers, brake energy regeneration and Auto Start Stop function—about 60% of the generated energy is still lost, half of it being exhaust heat, with the remaining half as heat absorbed by the engine cooling system.
A current research project is working to establish the technical basis for standardization of methanol fuels in Europe. The partners in the “Methanol Standard” project aim to pave way for the certification and market launch of methanol fuels. Hardware-in-the-loop test rig for the qualification of fuels. Photo: TEC4FUELS.
Mated to an automatic or a manual transmission, the new EA888 offers up to a 17% decrease in fuel consumption while providing even better acceleration. Key advances for Gen 3 are in weight reduction, friction reduction, and the internal exhaust cooling system. TFSI with 125 kW (170 hp) has a combined fuel consumption of 5.7l/100
The levels of these non-fuel-derived gases will likely remain unchanged, even as more drivers transition from gas-powered to electric vehicles. While some VOCs are released in exhaust, others may arise from an unexpected source—e.g., Cliff et al. the products used for “car care,” such as windshield washer fluid. Lewis, Marvin D.
The H-engine—basically two separate engines housed within the same engine block—comprises two switchable parallel piston banks, independently fueled by gasoline and CNG. Startup Eco-Motive has developed what it calls the first dual-fuel “H” engine; it recently received a patent (# 8807098 ) on the design.
As a back-up, both models come with a gasoline tank – albeit a much smaller version. Proof of this comes from its fuel consumption of just 3.6 Driving in CNG mode produces around 25% fewer CO 2 emissions than with gasoline. An even better CO 2 balance can be achieved by fueling with biomethane or e-gas.
Their paper is published in the ACS journal Energy & Fuels. Their paper is published in the ACS journal Energy & Fuels. Regulated emissions for all test fuels over the cold-start and hot-start LA92 cycles. A fuel economy penalty was also observed for lower energy content E30 and E78 blends compared to both E10 fuels.
liter EcoBoost gasoline turbocharged direct injection (GTDI) four-cylinder unit. 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 liter three-cylinder; 1.5-liter,
Researchers from Tampere University and the University of Eastern Finland have found that the particulate emissions of auxiliary heaters can be up to a thousand times higher than the particulate emissions of idling gasoline vehicles. Their open-access study is published in the journal Atmosphere. doi: 10.3390/atmos12091105.
The gasoline engine delivers 105 hp (72 kW) at 5500 rpm and maximum torque of 145 N·m (107 lb-ft) at 2000 rpm/min, with combined cycle fuel consumption of 4.2 This is the lowest consumption of any of the gasoline or diesel MiTo engines, while power delivery and torque are the second-highest of the MiTo gasoline range.
CVVD optimizes both engine performance and fuel efficiency while reducing emissions. The valve control technology regulates the duration of valve opening and closing according to driving conditions, achieving a 4% boost in performance and a 5% improvement in fuel efficiency. T-GDi—the first engine to feature the technology.
liter, direct and port fueled injection, inline 4-cylinder gasoline engine commonly used in the Camry line of vehicles. The “Dynamic Force Engine” achieves one of the world’s best thermal efficiencies of 40% in gasoline powered vehicles according to Toyota.
The new Arona TGI marks the fourth vehicle in SEAT’s line-up to benefit from the cleaner, cheaper fuel, joining the Leon, Ibiza and Mii. SEAT is actively boosting CNG as the fuel forms a sustainable additional alternative. liter TSI gasoline version, but integrates components that allow it to run on compressed natural gas.
Corning Incorporated’s Environmental Technologies business reached a significant production milestone at its Kaiserslautern, Germany manufacturing facility with the production of its 1 millionth Corning DuraTrap GC gasoline particulate filter (GPF) for automotive emissions control.
As part of the new technology to achieve this vision, the company disclosed plans to introduce a next-generation gasoline engine called SKYACTIV-X in 2019. This new proprietary combustion engine combines the advantages of gasoline and diesel engines to optimize environmental performance, power and acceleration performance. Yamasaki, Y.,
With the refresh for 2021 Camry models, Toyota is introducing the first XSE Hybrid grade, combining the Camry’s most fuel-efficient powertrain with its highest expression of the sport and luxury blend. for XSE grade, which uses a dual-outlet exhaust). 2021 Camry XSE Hybrid. -ft. of peak torque at 5,000 rpm (206 hp and 186 lb.-ft.
A study by a team from UC Riverside has assessed the potential of increasing ethanol content in California reformulated gasoline (CaRFG) by investigating the exhaust emissions from a fleet of 20 Tier 3 light-duty vehicles. A baseline CaRFG E10 (10% ethanol by volume) fuel was splash-blended with denatured ethanol to create an E15 fuel.
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.
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