UC Riverside team wins EPA design contest with lawnmower exhaust aftertreatment device

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A team of University of California, Riverside Bourns College of Engineering students have won an EPA student design contest for developing an exhaust aftertreatment device that cuts CO, NO x and PM emissions from lawnmowers.

2014 85

IAV develops new close-coupled diesel exhaust gas aftertreatment system for improved emissions reduction

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IAV has developed a particularly closed-coupled diesel exhaust gas aftertreatment (EAT) system. A key contribution to this performance must come from the exhaust gas aftertreatment system—across the entire speed and load range.

2017 98

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EIA: trends in downsized engine design leading to increased demand for higher-octane gasoline

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Since 2013, the share of premium gasoline in total motor gasoline sales in the US has steadily increased to 11.3% Turbochargers work by using a turbine driven off the exhaust gas to pressurize the intake air. of new gasoline-fueled LDV sales.

2016 85

Environment Canada/MECA team assesses black carbon emissions in GDI engine exhaust; evaluation of prototype gasoline particulate filter

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This may result in the need for new emissions control strategies—such as a gasoline particulate filter (GPF)—to enable compliance with California LEV III and US EPA Tier 3 particulate emissions standards.

2014 85

Study finds gasoline exhaust contributes more to formation of secondary organic aerosols than diesel

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Contrary to expectations, exhaust from gasoline vehicles contributes more to the production of secondary organic aerosols (SOA) than exhaust from diesel vehicles, according to a new study by scientists from the Cooperative Institute for Research in Environmental Sciences (CIRES), NOAA’s Earth System Research Laboratory (ESRL) and other colleagues. This suggests future research aimed at understanding ways to reduce gasoline emissions would be valuable.

Second-generation Audi A7 Sportback features standard 48V MHEV system with gasoline or diesel engines

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Audi has unveiled the second-generation A7 Sportback, which is the essence of Audi‘s new design language. The four-door coupé brings the show car design of the prologue studies ( earlier post ) to production. TFSI (gasoline) or a 3.0

2018 95

WHO IARC classifies diesel exhaust as carcinogenic to humans (Group 1)

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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. In 1988, IARC classified diesel exhaust as probably carcinogenic to humans (Group 2A). and reductions in emissions through exhaust control technology.

Ford unveils new Focus; 10% better fuel economy; focus on tech; gasoline and diesel

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The new Focus features a broad suite of Ford advanced driver assistance technologies and advanced EcoBoost gasoline and EcoBlue diesel engines offering a 10% fuel-efficiency improvement across the range. A belt-in-oil design for the camshaft and oil pump drive belts.

2018 90

Study finds modern diesel cars emit fewer carbonaceous particulates than gasoline cars

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A new study by an international team led by researchers from the Paul Scherrer Institute (PSI) in Switzerland has found that modern diesel passenger cars equipped with diesel particulate filters (DPFs) emit fewer carbonaceous particulates than gasoline-powered vehicles.

2017 101

Volkswagen introduces new 1L, 3-cylinder gasoline Golf; 54.7 mpg

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mpg US) (99 g/km CO 2 )—more efficient than any previous Golf with a gasoline engine. The new TSI engine also offers the highest specific torque of any large-scale production series gasoline engines: 200 N·m per liter displacement. The exhaust manifold of the 1.0

2015 107

New mixed-oxide catalysts shown as viable substitute for platinum catalysts for diesel exhaust aftertreatment

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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. Diesel engines are attractive because of their higher fuel efficiency than gasoline engines.

Birmingham study finds butanol-gasoline blend reduces GDI engine-out carbonaceous emissions; similar NOx

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Gasoline direct injection engines offer better fuel efficiency from their increased compression ratio, lower pumping losses, higher volumetric efficiency and more accurate injection control.

2017 85

Renault launches new generation gasoline engine, co-developed by Alliance and Daimler

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gasoline engine co-developed by the Alliance and Daimler. Other technologies enhance driving enjoyment and reduce fuel consumption and CO 2 emissions: the pressure of the direct fuel injection has been raised by 250 bar and a specific combustion chamber design optimises the fuel/air mix.

2017 78

Saudi Aramco team finds dual-fuel Octane-on-Demand concept can outperform E30 gasoline

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The concept of using a second, high octane fuel on demand to augment the performance of a standard gasoline fuel reaches back to the 1940s, with a recent resurgence in interest generated by the need to increase engine efficiency.

2017 78

BMW unveils latest Efficient Dynamics 3- and 4-cylinder gasoline and diesel engines

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At its Innovation Days 2016 event in Munich, BMW unveiled new versions of its three and four- cylinder gasoline and diesel engines. In addition to this, the full line-up of gasoline and diesel engines feature BMW TwinPower Turbo technology. Gasoline engines.

2016 95

Mercedes-Benz powering ahead with €3B strategic engine initiative; increasing electrification, 48V; diesel and gasoline; cylinder deactivation

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The new engines] also need to be designed with a view to all current and future requirements. The new six-cylinder in-line gasoline engine M 256 features a 48 V electrical system. Another feature of the new family of premium gasoline engines is near-engine exhaust aftertreatment.

2016 109

Jaguar Land Rover expanding Ingenium powertrain family; new gasoline engine, TRANSCEND transmission

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At the heart of its low-emissions strategy, the new four-cylinder Ingenium gasoline engine is now in production at Jaguar Land Rover’s £1-billion (US$1.33-billion) Engine Manufacturing Centre.

Mercedes-Benz investing ~€3B in new engine technology; new diesel family, particulate filters for gasoline engines

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billion) in engine technology to ensure further improvements in fuel consumption and emissions in gasoline and diesel engines in current as well as current vehicles, according to Prof. Exhaust aftertreatment systems. Gasoline engines with particulate filters in the future.

2016 85

Researchers Exploring On-Board Exhaust Gas Reforming to Improve Combustion and Recover Waste Heat

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Professor Stan Golunski, Deputy Director of the newly established Cardiff Catalysis Institute , in collaboration with engineers at Brunel and Birmingham Universities, is investigating the feasibility of an on-board exhaust gas reforming system to improve combustion and recover waste heat. Initially the research will focus on diesel engines but the potential of exhaust gas reforming to achieve benefits in gasoline engines will also be evaluated.

Waste 60

Tenneco’s gasoline particulate filter technology ready to meet Euro 6c

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Tenneco introduced its oval-shaped gasoline particulate filter design at the 2015 Frankfurt Motor Show. Gasoline particulate filters effectively control particulate emissions under all operating conditions.

2015 85

PowerDriver simulations predict thermoelectric exhaust waste heat recovery output of 300W, -2.5% in fuel consumption; prototyping begins

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The European Union-funded PowerDriver project—a two-year, €3-million (US$4-million) research project initiated in February 2012 to turn exhaust gas waste heat into electricity using thermoelectric generator (TGEN) technology—has completed simulation work on on a potential automotive application. This is not least due to the fact that the TGEN is located within the exhaust line and is subject to significant thermal cycling.

2013 60

New 7th-generation Hyundai Sonata updates design, tweaks powertrain

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design language, stiffer body structure, better ride quality, reduced noise, vibration and harshness and advanced safety and convenience features. Hyundai introduced the Theta II GDI, its first Gasoline Direct Injection engine, in 2009. Further performance gains were made possible by incorporating Dual Continuously Variable Valve Timing (DCVVT) which improves engine breathing on the intake and exhaust sides for better fuel economy and lower emissions. 2015 Sonata 2.0T

2014 69

NRC Canada team investigates effect of gasoline particulate filter on PM from light-duty GDI engine

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A team led by researchers from the National Research Council Canada has investigated the effect of the use of a gasoline particulate filter on the size and morphology of PM emitted from a light-duty gasoline-direct-injection (GDI) vehicle over the FTP-75 and US06 transient drive cycles.

2015 85

Researchers propose low-temperature SOFC unit for reducing NOx and oxidizing HCs in lean-burn engine exhaust

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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. Urea-based ammonia selective catalytic reduction (SCR) is one of the most promising methods for NO x removal from diesel engine exhaust.

2012 60

LiquidPiston unveils 70cc rotary gasoline engine prototype embodying HEHC; power dense, low-vibration

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The X Mini 70cc rotary gasoline engine. As the engine does not have poppet valves and the gas is fully expanded before the exhaust stroke starts, the engine also has potential to be quiet. We really converged on this design and demonstrated that it’s working.so

2014 124

Recent on-road real-world emission testing in India highlights disparity between cycles, gasoline and diesel

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The results highlight the disparity between test-cycles and real-world emissions as well as the large disparity between gasoline and diesel vehicles. gNO x /km for gasoline; and 0.25 On-road testing was performed using a portable emissions measurement system (PEMS) under two different trip design conditions: one following the driving conditions as defined under the European Real Driving Emissions (RDE) protocol and another following proper Indian driving conditions.

India 60

Neste files patent on gasoline fuels with high bioenergy content

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Neste, currently largest producer of renewable drop-in fuels (primarily diesel) with its NEXBTL platform ( earlier post ), has filed a patent ( US20150144087 ) on a gasoline composition (and the method for making it) comprising up to 20 vol% (preferably from about 10-15 vol.%), of paraffinic bio-hydrocarbons originating from the NEXBTL process. The resulting fuels with high bioenergy content can be used in conventional gasoline-fueled automotive engines.

2015 65

Promising Delphi 1st-gen Gasoline Direct Injection Compression Ignition engine meeting ultra fuel efficient program targets

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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). These were two main consideration in base engine design.

2014 107

NREL study probes emissions impact of butanol-gasoline blends in light-duty vehicles

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In the study, published in the ACS journal Environmental Science & Technology , they splash-blended certification gasoline with alcohols to produce four blends: ethanol (16 vol%); n-butanol (17 vol%); i-butanol (21 vol%); and an i-butanol (12 vol%)/ethanol (7 vol%) mixture.

2013 95

BMW unveils Gen7 5 Series; more efficient gasoline and diesel units; plug-in hybrid 530e in 2017

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The new 5 Series features TwinPower Turbo gasoline and diesel engines from the modular BMW EfficientDynamics family of power units. The gasoline units employ TwinScroll turbocharging, High Precision Injection, Double-VANOS variable camshaft control and Valvetronic fully variable valve timing.

2016 109

Tenneco developing new gasoline particulate filter (GPF) technology ahead of Euro 6c emissions regulation

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Tenneco is leveraging its expertise in diesel particulate filter (DPF) technology to develop gasoline particulate filters for 2017 model year light vehicles. These filters are designed for gasoline direct injection (GDI) engines to reduce particulate emissions in compliance with the Euro 6c emissions regulation (particulate number of no more than 6 x 10 11 particles/km), which takes effect on 1 September 2017.

2015 69

UC Berkeley study quantifies LD gasoline on-road emissions

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Based on on-road measurements in their study, a team from the University of California Berkeley has estimated that, as of 2010, light-duty (LD) gasoline vehicles were responsible for 85% of CO; 18% of NO x ; 18% of organic aerosol (OA); and 6% of black carbon (BC) emissions from on-road motor vehicles in the United States. Because gasoline use tends to be much higher than corresponding diesel fuel sales in most parts of North America, gasoline engines tend to dominate these species.

2013 65

ORNL team reviews fuel-injection strategies for low-temperature gasoline compression ignition

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While achieving LTC with diesel fuel over a wide operating range has been shown to be difficult for several reasons, gasoline, with its high volatility and low chemical reactivity, offers a more attractive fuel option for LTC.

2016 78

EPS advancing diesel engine for general aviation applications; 30-50% lower fuel consumption than gasoline

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The diesel combustion process, together with the design freedom provided by high strength CGI coupled with steel pistons, enable the lowered fuel consumption and emissions.

2015 78

Tsinghua study compares two diesel-gasoline combustion modes; both deliver high efficiencies and low emissions

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The effects of gasoline ratio on indicated thermal efficiency of HCII and GDBF modes. Gasoline Homogeneous Charge Induced Ignition (HCII) by diesel combines the port fuel injection of gasoline to form a homogeneous charge with the direct injection of diesel fuel as an ignition source.

2013 95

Toyota introduces facelifted Auris; revamped powertrains including new Otto/Atkinson 1.2L gasoline engine

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With the launch of the Auris Hybrid in 2010, Toyota became the first manufacturer to offer a choice of three powertrains (gasoline, gasoline-electric hybrid, and diesel) in the C-segment. 1.2T: an all-new direct injection turbo gasoline engine. liter gasoline, 1.6

2015 85

SwRI D-EGR gasoline demo vehicle delivers diesel efficiency at lower cost; potential for LEV III/Tier 3 emissions

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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. Hydrogen-enriched exhaust is routed to the intake.

2014 107

Opel presents new midsize gasoline engine at Aachen Colloquium; fuel consumption down 13%, torque and power up 33%

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Opel revealed more details about its new mid-size gasoline engine family at the Aachen Colloquium in Germany. The structural design considers the engine’s use in a variety of vehicle applications, allowing minimum integration effort and consistent part interchangeability. New 1.6L

2012 117

Delphi advancing Gasoline Direct-Injection Compression-Ignition engine concept; new two-stage supercharger/turbocharger boost system

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At SAE World Congress next week in Detroit, Delphi Automotive will present two technical papers describing its ongoing progress with the Gasoline Direct-Injection Compression-Ignition (GDCI) engine concept. Piston design requirements for GDCI are different than for diesel, they noted.

2013 106

Cummins progressing with lightweight downsized T2B2 diesel for pickup; 40% improvement in fuel economy over gasoline V8

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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) and its emission control system (ECS) without a weight penalty.

2014 113