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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
After a week-long meeting of an expert working group, the International Agency for Research on Cancer (IARC), which is part of the World Health Organization (WHO), classified diesel engine exhaust (DEE) as carcinogenic to humans (Group 1), based on sufficient evidence that exposure is associated with an increased risk for lung cancer.
Thirty-seven globally prominent scientists representing the International Journal of Engine Research have published an open-access editorial addressing the future of the Internal Combustion Engine, and stressing the importance for continued development of more efficient and even lower-emitting technologies. —Reitz et al.
Dr. Alexander Shkolnik, President and Co-Founder of LiquidPiston, is presenting the engine in a paper at the SAE International/JSAE 2014 Small Engine Technology?Conference The X Mini 70cc rotary gasoline engine. Water may be injected to internally cool the engine. Conference today in Pisa, Italy. " x 6.2" " x 5.4"
GDCI engine was significantly better than advanced production spark injection gasoline engines, and comparable to very efficient hybrid vehicle engines at their best efficiency conditions (214 g/kWh). Throughout the world, many efforts are being made to improve the thermal efficiency of internal combustion engines.
However, he added, the internal goal is “ significantly higher, ” and is targeting the GHG limit. Cost of the new engine relative to gasoline baseline. The approach that Cummins and partners have taken features: Replacing the aluminium V8 gasoline engine and emission control system with smaller diesel (2.8-liter) Earlier post.).
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. At the same time, ‘Motor’ is in our company name and we accordingly have a strong passion for and level of commitment to the internal combustion engine. Earlier post.).
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. With D-EGR, one or more cylinders have their exhaust connected directly to the intake system.
Results of a study led by a team from the National Renewable Energy Laboratory on the impact of butanol-gasoline blends on light-duty vehicle emissions suggest that widespread deployment of n-butanol or i-butanol in the gasoline pool could result in changes to the estimated emissions of alcohols and carbonyls in the emissions inventory.
DENSO Corporation has developed its first EGR cooler for gasoline engines. 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 EGR cooler. Click to enlarge. Click to enlarge.
In 2011, Nissan launched a version of the Micra city car equipped with a new supercharged gasoline direct-injection engine (HR12DDR). To reduce the rest of the pumping loss on un-boosted partial load, Nissan combined internal EGR with exhaust continuously variable valve timing (CVTC) and external EGR. Earlier post.).
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 fuel economy gains between 23% and 58%. Their paper is published in the International Journal of Engine Research. Martz and Dennis N.
form ed a capital and business alliance jointly to develop next-generation vehicle exhaust systems. This collaboration will combine IBIDEN’s advantages in high-performance ceramic materials with DENSO’s advantages in developing products as systems to develop high-performance, simple and low-cost vehicle exhaust systems.
A paper on their work is published in the International Journal of Engine Research. 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 higher H/C ratio) than gasoline. Splitter et al.
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. —Walter Piock.
There are widespread policy assumptions that the phase-out of gasoline and diesel internal combustion engines will over time lead to much reduced emissions of Volatile Organic Compounds (VOCs) from road transport and related fuels. While some VOCs are released in exhaust, others may arise from an unexpected source—e.g.,
Peugeot’s new 2008 B-Segment urban crossover, introduced at the Geneva Motor Show, leverages its light-weight design, aerodynamic silhouette and a wide range of gasoline and diesel engines equipped with Stop&Start—including a new generation of 3-cylinder gasoline engines—to offer fuel consumption and CO 2 emissions as low as 3.8
FCA also plans to consolidate its small gasoline engine lineup with a new family to be launched in 2015. FCA and the industry in general have made great strides in improving the efficiency of the internal combustion engine. Much more progress will come as gasoline and diesel engine technologies converge. —Bob Lee.
Citroën is introducing the first members of its new PureTech family of three-cylinder gasoline engines on the C3, DS3 and C-Elysée (for international markets) ranges. The exhaust manifold is integrated directly in the cylinder head, which reduces the number of parts and overall weight. Reduced internal friction.
A team from Brunel University, MAHLE Powertrain and University College London studied the combined effects of different inlet valve operating strategies on combustion, performance and emissions with different ethanol and 1-butanol blends with gasoline in a single-cylinder spark-ignition research engine equipped with a fully variable valvetrain.
Operating range of 2-stroke CAI fueled with gasoline, E10 and E85. Most recently, this has entailed an exploration of boosting strategies, as described in a new paper published in the International Journal of Engine Research , as well as an exploration of the effects of ethanol blends. Zhang et al. 2013a) Click to enlarge.
The new Peugeot 208 B-segment supermini, which launches this spring in Europe, will be available in 3- and 5-door bodystyles with a range of gasoline and diesel engines including a new 3-cylinder gasoline engine range and the latest generation of Stop & Start System (e-HDi) diesel engines. 208 gasoline range. 208 gasoline range.
HEDGE-III will investigate solutions to the primary barriers to high efficiency in gasoline engines. Southwest Research Institute (SwRI) has launched its third cooperative research program aimed at developing a high-efficiency gasoline engine for the light-duty automotive and medium-duty engine markets. Source: SwRI. Click to enlarge.
Engineers at Transonic Combustion, a start-up developing a fuel efficient supercritical (SC) fuel injection and combustion system—Transonic Combustion, or TSCi ( earlier post )—have demonstrated the TSCi process using gasoline fuel at low load without EGR, medium load with EGR, and high speed low load with EGR.
The company says, therefore, that in the medium term, the internal combustion engine will remain the BMW Group’s underlying technology and will thus power both existing and future series of volume production vehicles as the standard drive unit. Earlier post.). Building blocks. One of the first members is a 1.5-liter,
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.
FEV is developing a water injection system for internal combustion engines using condensate from exhaust gases, the “Extended Direct Condensate Injection” system. The concept, as reported in a new paper in the International Journal of Engine Research , demonstrates a potential for efficiency increase of 3.3% – 3.8%
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.,
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.
Key advances for Gen 3 are in weight reduction, friction reduction, and the internalexhaust cooling system. This is the first implementation of such a system in a turbocharged direct-injection four-cylinder gasoline engine, noted Lemke. Integrated exhaust manifold with cooling. Generational progress with the EA888.
the criteria pollutants and CO 2 that emerge with the exhaust from the tailpipe. However, there is more than 15 years of research showing that the contribution of non-exhaust primary particles to the total traffic generated primary particles is significant in urban areas. Further, a 2013 review by Denier van der Gon et al. Background.
A paper on their study is published in the International Journal of Engine Research. Reactivity-controlled compression ignition combustion phasing (CA50—crank angle when 50% of fuel is burned) is most sensitive to variations in diesel fuel mass, level of exhaust gas recirculation, and charge gas temperature.
These include fully-electric systems, as well as a gasoline-generated EV system (known as e-POWER at Nissan, earlier post ) in which a gasoline engine generates electrical power stored in a battery (series hybrid), which can then be delivered to all four wheels through a pair of high-output electric motors. Earlier post.)
Global-mean temperature change caused by car exhaust emitted from gasoline and diesel engines specified in the previous and upcoming European vehicle emission standards (EURO 3, 4, 5, and 6). The results are based on one-year pulse emissions in year zero, which would be emitted by an idealized 1000 km drive. Credit: ACS, Tanaka et al.
liters less per 100 kilometers than the gasoline engines of the challengers, Toyota and Porsche, are allowed to consume. liters less fuel available in the course of 24 hours than the gasoline units. In this category, the WEC rules allow a gasoline engine with more than 500 hp a consumption of only 4.78 Compared with the 2006 5.5-liter
Toyota introduced the next-generation three-row 2020 Highlander SUV at the New York International Auto Show. Arriving in Toyota dealerships in winter, the Highlander gasoline model will arrive in December 2019 and the Highlander Hybrid will make its way to customers in February 2020.
The new four-way conversion catalyst, FWC, is a technology for vehicles with gasoline engines. The catalyst removes the gaseous pollutants and now also solids such as particulates from the exhaust gas flow. This ceramic support is covered with a washcoat containing metal oxide particles with a very large internal surface.
At the International Vienna Motor Symposium Prof. These would range from highly efficient internal combustion engines and natural gas systems all the way to hybrids and electric vehicles. to 1.6l); the EA 888 Gen3 gasoline engines (1.8l to 1.6l); the EA 888 Gen3 gasoline engines (1.8l Source: Prof. Click to enlarge.
A new study by a team from the University of Edinburgh and independent engineering company INNAS BV has found that, when factoring in the additional weight and non-exhaust PM factors, total PM 10 emissions from electric vehicles (EVs) are equal to those of modern internal combustion engine vehicles (ICEVs). Click to enlarge.
Toyota anticipates a 1/3 full hybrid, 1/3 gasoline, 1/3 diesel engine mix. The new Auris’ powertrain line-up, which now features a choice of an improved full hybrid or two gasoline and two diesel engines offering the performance- and economy-enhancing benefits of Toyota Optimal Drive. Valvematic gasoline engine. Powertrains.
Achates Power says that its 2-stroke OP engine offers higher best point brake thermal efficiency than diesel or gasoline engines. Since the pistons cyclically expose or occlude the exhaust and intake ports, there is no valve train. During blow down, the intake is closed so only exhaust gas leaves the cylinder via the exhaust ports.
A team at the University of Birmingham reports that a blend of 33% v/v of butanol in EN228 commercial gasoline containing 5% of ethanol (B33) reduces GDI (gasoline direct injection) engine-out carbonaceous emissions, while maintaining similar levels of NO x emissions when compared to standard gasoline combustion at low and medium engine loads.
TSCi combustion minimizes heat loss to the cylinder walls and in the exhaust. The company currently is optimizing the system for use in modern high-compression diesel architecture engines, near-term running on gasoline while longer-term utilizing advanced low-carbon fuels. Source: Transonic. Click to enlarge. Click to enlarge.
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