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% This trend of increasing demand for higher octane gasoline is likely driven by changes in fuel requirements for light-duty vehicles (LDV) in response to increasing fuel economy standards, which will have widespread implications for future gasoline markets, according to EIA analysts. One significant trend is engine downsizing coupled with turbocharging.

2016 163

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

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Cummins reports that it, along with partners Johnson Matthey and Nissan, is on plan in a 4-year, $30-million ($15 million from the US Department of Energy) research project to deliver a light-duty diesel engine with fuel economy 40% improved over that of baseline gasoline V8 engine for a half-ton pickup truck while also meeting the requirements of US Tier2 Bin2 tailpipe emissions. Cost of the new engine relative to gasoline baseline. Exhaust system configuration.

2014 288
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New Efficient Supercharger with Variable Drive for Downsized Gasoline Engines

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The need to reduce CO 2 emissions is leading to downsized engines, heavily boosted by turbo- or supercharging. Gasoline engines are typically less expensive than diesels for the same application but have higher exhaust temperatures, making advanced turbocharging more difficult. Independent analysis has estimated that the world market for pressure-charged gasoline engines will grow from 2.5

Split injection Miller cycle with boost decreases knock tendency and increases torque in downsized engine

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Researchers at Tianjin University in China report that combing split injection to the Miller cycle with boost pressure can effectively decrease the knock tendency and increase the engine torque in a downsized spark-ignition engine. The current development of downsized spark ignition (SI) engines with boost pressure is a proven way of increasing the thermal efficiency and reducing CO 2 emissions.

2018 174

Achates OPGCI project targeting 50% fuel efficiency gains over downsized GDI engine at reduced cost

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Achates Power will work with Delphi Automotive and Argonne National Laboratory on its ARPA-E-funded project to develop an innovative opposed-piston, gasoline compression ignition (OPGCI) engine. The engine should yield fuel efficiency gains of more than 50% compared to a downsized, turbo-charged gasoline direct injection engine, while reducing the overall cost of the powertrain system, said Fabien Redon, Vice President, Technology Development at Achates Power.

2015 163

Hyundai showcasing new downsized turbo engines and 7-speed dual-clutch transmission; i40 48V Hybrid, i30 CNG

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Hyundai Motor is showcasing two new turbocharged gasoline direct injected (T-GDI) engines at the Paris Motor Show 2014. The new Kappa 1.0-liter T-GDI is the first of a new generation of small turbocharged gasoline engines, offering enhanced performance, driving pleasure and efficiency. liter MPI engine, carrying various enhancements and new technologies, including direct gasoline injection and a small, single-scroll turbocharger. New engines and transmission.

2014 209

HyBoost demonstrator debuts at LCV2011; 50% by swept volume downsizing with low-cost electrification

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The HyBoost project vehicle was revealed for the first time today at the Cenex Low Carbon Vehicle 2011 event hosted at Rockingham, UK, demonstrating a combination of high-impact, low-cost electrical systems which offer the prospect of radical engine downsizing using electric supercharger and energy capture and storage technologies within an otherwise conventional gasoline powertrain architecture. naturally aspirated four-cylinder gasoline engine has been replaced with a 1.0L

Simulation study finds “Millerizing” the Scuderi split-cycle engine could enable 50% engine downsizing with retention of power and torque, along with reduced fuel consumption

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Simulation study finds Miller version of Scuderi engine can deliver twice the BMEP as naturally aspirated version, theoretically enabling 50% downsizing while maintaining performance. Applying the Miller cycle to the Scuderi engine (right) entails downsizing of the compression cylinder. For the study, the SwRI team applied the Miller cycle to a spark-ignited, stoichiometric, gasoline-fueled version of the SSCE with downsized compressor cylinder in 1D cycle simulation software.

2012 221

Concept: Downsized and Supercharged Hybrid Pneumatic Engine for 30%+ Reduction in Fuel Consumption

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Schematic of downsized and supercharged four-stroke hybrid pneumatic spark injection engine. Researchers at ETH Zürich, with partners Robert Bosch GmbH, Wenko Swissauto and the Swiss Federal Office of Energy are developing a downsized and supercharged hybrid pneumatic engine that they say can deliver a fuel consumption reduction of more than 30% compared to a standard engine with the same rated power. The engine has two intake and two exhaust valves per cylinder.

2009 163

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. Despite its efficiency, the Golf TSI BlueMotion with the 85 kW / 114 hp downsized 999 cc EA211-series engine reaches 100 km/h in 9.7 The turbocharged gasoline engine with its 10.5:1 Exhaust manifold integrated in cylinder head.

2015 232

Study finds catalyzed gasoline particulate filters effective at reducing particulate and PAH emissions from GDI engines

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A new study by researchers at the Bourns College of Engineering, University of California, Riverside (UCR) and colleagues at the Manufacturers of Emission Controls Association (MECA) has found that catalyzed gasoline particulate filters (GPF) are effective not only at reducing particulate mass, black carbon, and total and solid particle number emissions in gasoline direct injection engines (GDI) but also polycyclic aromatic hydrocarbons (PAHs) and nitrated PAHs.

2018 219

Controlled Power Technologies Packages Its Switched Reluctance Systems in ‘RegEnBoost’ System for Enhanced Support for Downsizing

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CPT says that the RegEnBoost system enables a typical family-sized car to achieve less than 100 g/km CO 2 with a 1-liter gasoline engine, but when required can offer the same lively performance and in-gear acceleration of a 2-liter naturally aspirated powertrain. Power for the battery and VTES electric supercharger is not only supplied by the SpeedStart ISG but also the TIGERS exhaust driven turbo-generator. The three components of the RegEnBoost system. Click to enlarge.

2009 177

DENSO Develops Exhaust Gas Temperature Sensor With Improved Temperature Detection Accuracy

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DENSO Corporation has improved the temperature detection accuracy of its newly developed diesel exhaust temperature sensor. To improve the sensor’s temperature accuracy, DENSO increased the probe length to almost twice that of the conventional product and extended the sensing tip into the exhaust pipe. In addition, DENSO also expects an increase in gasoline-powered vehicles with turbochargers to meet the demand for higher engine power as downsizing progresses.

2009 183

Volkswagen Emphasizes Downsizing at 30th Vienna Engine Symposium; Highlights 1.2 TSI and 1.6 TDI

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Continuing to emphasize a downsizing approach, Volkswagen presented two new engines at the at the 30 th Vienna Engine Symposium (7-8 May): the 1.2-liter TSI gasoline engine and the 1.6-liter TDI diesel. The potential of internal combustion engines is far from exhausted. Downsizing is rigorously being developed in the volume segments with the 1.2 It meets the EU 5 exhaust emission standard. The new 1.6-liter TDI. Click to enlarge.

2009 150

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

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Researchers at Delphi Powertrain, in collaboration with colleagues at Hyundai Motor, the University of Wisconsin-Madison, and Wisconsin Engine Research Consultants (WERC), have developed a first-generation multi-cylinder Gasoline Direct Injection Compression Ignition (GDCI) engine, based on several years of extensive simulations and single-cylinder engine tests. This early work established that gasoline-like fuels with high resistance to autoignition are preferred for PPCI.

2014 253

ExxonMobil, Corning and Toyota develop onboard membrane system to separate gasoline into octane fractions to optimize engine efficiency and performance

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ExxonMobil, Corning and Toyota have collaborated to develop an Onboard Separation System (OBS) to optimize gasoline engine efficiency and performance. OBS is a membrane-based process that separates gasoline into higher and lower octane fractions—essentially creating a dual fuel system from a single base fuel—allowing optimal use of fuel components based on engine requirements. 100 RON product when using regular unleaded (RUL) 92 RON gasoline as the base fuel.

2014 260

Downsized 5.5L V8 Biturbo in S 63 AMG Delivers 25% Fuel Savings Compared to Predecessor; Stop-Start is Standard

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In addition to its twin turbos, the new eight-cylinder unit—known internally as the M 157—features gasoline direct injection with spray-guided combustion and twin turbochargers. For the first time, AMG is also utilizing the advantages of gasoline direct injection with spray-guided combustion and piezo-electric injectors: thanks to its higher thermodynamic efficiency, this technology makes more efficient use of fuel and leads to lower exhaust emissions.

2010 174

PSA to commercialize SwRI-developed Dedicated-EGR technology in high-efficiency gasoline engines by 2018

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During its recent Innovation Day presentations ( earlier post ), PSA Peugeot Citroën announced that it will commercialize high-efficiency gasoline engines featuring dedicated exhaust gas recirculation (D-EGR), derived from a collaborative program with SwRI in the US. In the inaugural study reported in an SAE paper in 2009 (2009-01-0694), SwRI ran a 4-cylinder engine with cylinder 1 exhausting directly to the intake manifold, leading to a constant 25% EGR level.

2013 228

DENSO develops compact EGR cooler for gasoline engines; applied in Prius c

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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 plans to offer this product worldwide as a solution to meet tighter fuel-efficiency and exhaust regulations. DENSO EGR cooler. Click to enlarge.

2012 204

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. For mass reduction the midsize gasoline engine features a two-piece crankcase design, supported at the lower end by a die-cast aluminum bedplate. Achieving these goals enabled vehicle integration that can tune primary engine orders in the induction and exhaust systems to meet specific vehicle objectives. New 1.6L SIDI engine. Click to enlarge.

2012 283

Brunel engineers optimizing CAI combustion in 2-stroke camless gasoline DI engine

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Operating range of 2-stroke CAI fueled with gasoline, E10 and E85. Researchers at Brunel University in the UK, led by Professor Hua Zhao, Head of Mechanical Engineering and Director, Centre for Advanced Powertrain and Fuels (CAPF), are investigating optimizing the performance of controlled autoignition (CAI) combustion in a four-valve camless gasoline direct injection engine running in a two-stroke cycle. Zhang et al. 2013a) Click to enlarge.

2014 174

Study explores impact of alcohol-gasoline blends with early inlet valve closing at low and moderate loads on EGR tolerance

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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. Variable valve timing is an established technique for improving the fuel economy of a gasoline engine via several mechanisms.

2013 200

Peugeot 208 features new generation of 3-cylinder gasoline and Stop & Start System (e-HDi) diesel engines

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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. The 208 also introduces a new range of 3-cylinder gasoline engines, 1.0- l VTi versions will allow the 208 to offer gasoline versions at 99 g/km and 104 g/km of CO 2. 5-door 208.

2012 207

ADEPT project to apply gasoline engine HyBoost system to diesel; 48V architecture; full hybrid fuel economy at much lower cost

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The developers of the successful gasoline-engine HyBoost project ( earlier post )—Ricardo, Ford Motor Company, Control Power Technologies (CPT) and the European Advanced Lead Acid Battery Consortium (EALABC)—will be joined by Faurecia Emissions Control Technologies UK Ltd and University of Nottingham to apply the intelligent electrification concept for the first time to a diesel vehicle (a Ford Focus).

2013 209

Mazdas new SKYACTIV gasoline and diesel engines are steps on the road to its Ideal Engine; focus on compression ratio

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However, while Mazda plans to offer hybrid vehicles in the medium-term, its engineers are pushing hard to increase the efficiencies of both the gasoline and diesel platforms, moving toward what they call “the ideal Internal Combustion Engine.” ” The initial SKYACTIV-G (gasoline) and SKYACTIV-D (diesel) engines that are being applied into new vehicles this year and next show Mazda’s approach to the goal. Extreme compression ratio rather than downsizing.

2011 265

Exploring gasoline-range naphtha as a low-soot, low-NOx alternative compression ignition fuel

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Gautam Kalghatgi and his colleagues at Saudi Aramco and other organization such as FEV, RWTH Aachen University, and Shell Global Solutions, have been investigating the potential use of naphtha as an alternative compression-ignition (CI) fuel that offers a number of benefits, including efficient combustion; low soot and NO x emissions resulting in a less complicated aftertreatment system to meet modern emissions standards; and a fuel that is simpler to make than current gasoline or diesel fuels.

2013 188

Citroën introduces first members of new 3-cylinder gasoline engine family; 1.0L and 1.2L PureTech reduce fuel consumption about 25%

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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. To achieve these results, PureTech development called for a number of changes, chief among which were: Downsizing. The exhaust manifold is integrated directly in the cylinder head, which reduces the number of parts and overall weight. PureTech 3-cylinder engine. Click to enlarge.

2012 237

Jaguar adds two new smaller forced induction gasoline engines to 2013 XF and XJ lineup; 8-speed automatic and start-stop

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For the 2013 XF and XJ lineup, Jaguar is adding two new downsized forced induction gasoline powerplants: 3.0-liter V6 Supercharged and 2.0-liter i4 Turbocharged units. These join the existing line-up of 2.2-liter i4 Turbodiesel, 3.0-liter V6 Turbodiesel and both naturally-aspirated and Supercharged 5.0-liter V8 gasoline units. Eight-speed ZF automatic transmissions are now fitted to all gasoline and diesel XJ and XF variants as standard for greater efficiency and performance.

2012 200

Delphi Powertrain Study Concludes 3-Cylinder Turbo Gasoline Direct Injection Engine Offers a High-Value NOx and CO2 Solution for Cost-Sensitive Vehicle Segments

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compacts under 1,400 kg in weight—a stoichiometric 3-cylinder turbocharged gasoline direct injection (GDI) engine offers an optimal combination of cost, lower emissions and reductions in fuel consumption, according to an analysis by Delphi Powertrain presented at the recent SAE 2010 World Congress. The Delphi study assessed the technology of downsizing and turbocharging; GDI fueling and its synergies with turbocharging; and an analysis of downsized 3-cylinder versus 4-cylinder engines.

2010 204

New Volkswagen Polo BlueGT with cylinder deactivation offers gasoline engine fuel economy of up to 52 mpg US

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The system was realized with the new 1.4-liter gasoline-fueled TSI of the Polo BlueGT. This combination of efficiency and dynamic performance is enabled by the systematic interplay of ACT, downsizing (reduced engine displacement plus direct injection and charging) and BlueMotion Technology (Stop/Start system, battery regeneration). These gasoline engines and the EA288 series diesel engines, which are also new, are technological pillars of the future Modular Transverse Matrix (MQB).

2012 221

ACCESS project targeting 30% improvement in fuel economy and SULEV emissions in light-duty gasoline engine; multi-mode SI/HCCI combustion

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Robert Bosch LLC and a consortium including AVL, Emitec, University of Michigan and Stanford University are working on a four-year, $24-million US Department of Energy (DOE)-supported project to achieve up to 30% fuel economy improvement in a gasoline-fueled light-duty vehicle without compromising performance while also meeting SULEV emission standards. Two-stage boost—a small supercharger for HCCI, and a regular turbocharger for downsizing.

2011 195

Fiat Launches New 1.8L Gasoline Direct-Injection Turbo in Lancia Delta

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Fiat has launched a new 1.8-liter, four-cylinder turbocharged gasoline direct-injection engine—the 1.8 Di Turbo Jet E5 drive torque is comparable to the one of an aspirated V6 engine which is almost twice its displacement, according to Fiat, but with significant efficiency gains through the downsizing. This allows the engine to make better use of the supercharging when compared to standard turbocharged gasoline engines, according to Fiat. The 200 HP 1.8 Di TurboJet.

2009 150

Advanced Turbocharged, Direct Injected Gasoline Engines Poised to Take on Diesels in US and in Europe for Reduced Fuel Consumption and Emissions

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A confluence of technology developments, future emissions regulations and economic conditions will not only allow advanced light-duty spark-ignited gasoline engines to keep diesels at bay in the US market, but may also allow the gasoline units to push into the diesel-dominated medium-duty commercial truck and off-highway segments in the US, according to several presentations at the US Department of Energy’s 2009 Directions in Engine-Efficiency and Emissions Research (DEER) conference last week.

2009 150

New Delphi 500+ bar GDi system cuts particulates by up to 50% without engine changes

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Building off its 350 bar GDi (Gasoline Direct Injection) system, Delphi Technologies has developed a 500+ bar GDi system that can reduce particulate emissions by up to 50% without expensive engine re-designs for the majority of applications. With an innovative new sealing system and a new, downsized plunger, Delphi Technologies’ high-efficiency fuel pump delivers the increased pressures needed without increasing the load on the on the engine’s camshaft.

2019 199

Ricardo’s “deep” Miller cycle concept: Magma

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In its new report on downsized and boosted gasoline engine technologies ( earlier post ) the ICCT highlighted Ricardo’s work on an “extreme” Miller cycle concept with high (13:1) compression ratio (CR) and central direct injection in a downsized boosted engine. The basic architecture of “Magma” concept is a boosted four-stroke gasoline engine with four valves per cylinder. A long exhaust stroke then extracts maximum efficiency.

2016 183

Study: splash blended ethanol fuels with higher ethanol percentage enable higher thermal efficiency in SI engine

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In a paper published in the journal Fuel , the researchers report that at the knock-limited engine loads, splash-blended ethanol fuels with a higher ethanol percentage enabled higher engine thermal efficiency through allowing more advanced combustion phasing and less fuel enrichment for limiting the exhaust gas temperature under the upper limit of 850 °C, which was due to the synergic effects of higher RON and octane sensitivity, as well as better charge cooling.

2017 150

VW bringing EA211 1.4L turbo direct-injection engine to Jetta range in US

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This brings implementation of intelligent downsizing to more than 97% of vehicles sold by Volkswagen in the US, available across all the models on sale. The 1.4-liter gasoline engine is one of Volkswagen’s latest EA211 series of small engines, featuring lightweight aluminum construction; an integrated (into the head) exhaust manifold; and a toothed-belt drive for its double overhead camshaft valvetrain that incorporates variable intake and exhaust timing.

2015 199

ICCT: decline in diesel sales will have negligible impact on attainment of European CO2 emission standards

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Other technologies—such as efficiency improvements in gasoline engines as well as the rollout of hybrid electric power trains—offer more compelling and cost-effective pathways to reducing CO 2 emissions from European passenger cars, the ICCT says. The ICCT notes that while diesels generally consume less fuel than comparable gasoline vehicles, CO 2 emissions from diesel engines are not lower in the same proportion, for various reasons.

2018 174

Fiat introducing new 2-cylinder 0.9L Turbo TwinAir in 2014 MiTo mini

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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. At launch, the MiTo offered ( earlier post ) two gasoline engines (78 bhp 1.4-liter and 155 bhp 1.4-liter turbo) and one turbodiesel (120 bhp 1.6

2013 249

Continental to supply turbochargers for new Ford 1.0L EcoBoost engines

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Developed for the latest 1-liter downsized gasoline engines. Continental will be supplying Ford with turbochargers for the carmaker’s new three-cylinder direct injection gasoline engine platform. The successful collaboration with Ford resulted in a turbocharger design that meets the particular technical challenges posed by small, downsized engines. Continental began developing turbochargers for gasoline engines in 2006.

2011 200

Pierburg GmbH electric compressor for turbos

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Pierburg GmbH, part of the KSPG Group, has developed an electric compressor for spontaneously boosting the charge pressure of engines fitted with an exhaust-gas turbocharger. This component allows pressure to be increased regardless of the exhaust-gas energy availability. The compressor is compatible with both gasoline and diesel engines. The electric compressor fits in well and without any constraints with the proven strategy of downsizing, the company said.

2016 150

Continental introducing innovative annular catalytic converter for near-complete NOx reduction to meet RDE and SULEV 30 standards

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Continental will present an innovative close-coupled annular catalytic converter that supports near-complete NO x conversion in downsized turbocharged gasoline engines at the 37 th Vienna Motor Symposium next week. Close-coupled annular catalytic converter developed by Continental supports near-complete NO x conversion in turbocharged gasoline engines. Markus Distelhoff, Executive Vice President Fuel & Exhaust Management Business Unit in Continental’s Powertrain Division.

2016 150

Porsche takes top two spots at Le Mans, Audi third

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Porsche retained the basic concept of its Class 1 Le Mans Prototype (LMP1) for the second generation: a downsized turbocharged direct injection gasoline engine and two different energy recovery systems. Porsche increased the combustion efficiency of the now lighter and more rigid 2-liter V4 turbocharged gasoline engine for its second season.

2015 223