Study identifies combustion-derived nanoparticles in diesel exhaust as the predominant mediator for adverse cardiovascular events

Green Car Congress

A large body of work shows that exposure to road traffic and air pollution may be a trigger of adverse cardiovascular events such as angina, myocardial infarction, and heart failure, with long-term exposure increasing the lifetime risk of death from coronary heart disease. The research by the University of Edinburgh measured the impact of diesel exhaust fumes on healthy volunteers at levels that would be found in heavily polluted cities.

DENSO and IBIDEN to collaborate on next-generation vehicle exhaust systems and vehicle electrification

Green Car Congress

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. DENSO has developed and provided systems components to better control the intake, power, and exhaust events in the operating cycle of gasoline and diesel engines.

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Trending Sources

Researchers show mechanism by which diesel exhaust particles trigger respiratory “flare-ups”

Green Car Congress

Researchers at Imperial College London, working with colleagues from King’s College London and University of British Columbia, have demonstrated a mechanism by which diesel exhaust particles directly affect the lungs to initiate symptoms such as a tightening of the airways and cough. The researchers found that when the tissue had been exposed to PAHs, sensory nerves responsible for the reflex events and initiating common respiratory symptoms, such as coughing and wheezing, were stimulated.

2017 64

FEV working on water injection system using exhaust condensate; fuel consumption improvements up to 16% possible

Green Car Congress

FEV is developing a water injection system for internal combustion engines using condensate from exhaust gases, the “Extended Direct Condensate Injection” system. FEV’s system concept offers potential synergies which can be further enabled by exhaust heat recovery.

2015 83

Neste Oil’s renewable diesel used to generate elecricity at two events in Finland

Green Car Congress

Neste Oil’s NEXBTL renewable diesel was used to generate electricity at two major events in Finland this summer: the Flow Festival in Helsinki and the Neste Oil Rally Helsinki Battle street circuit race. When used to power on-site generator sets, the premium quality of the fuel and its purity cut exhaust emissions and eliminate the odor associated with conventional diesel.

Rosenberger Spritzguss und Formenbau manufactures new sensor carrier for EGR in one process step and without any weld lines

Green Car Congress

The whole component is mounted as a cover on exhaust gas recirculation (EGR) modules which are fitted as standard in many automobiles in Europe. A PET membrane, which is welded into the housing, provides the pressure compensation required in the event of climate changes.

2016 78

Caterpillar investigating 6-stroke engine cycle as low-emission solution

Green Car Congress

The primary difference between the conventional 4-stroke and Caterpillar 6-stroke cycle is the addition of a second compression and combustion stroke immediately following the primary combustion event. The fourth stroke omits the conventional exhaust event in order to recompress the combustion gases. First and foremost, the quantity of fuel that is injected during each of the combustion events can significantly impact the combustion performance. …It

2014 93

EGR stratification as a control technique for diesel HCCI

Green Car Congress

A team from Université d’Orléans (France) and IFP Energies nouvelles reports that exhaust gas recirculation (EGR) stratification may be used as a control parameter for combustion speed and therefore may contribute to the extension of the homogeneous charge compression ignition operating range.

DARPA awards LiquidPiston $2.5M to advance further X4 rotary engine prototype

Green Car Congress

This is done by changing the locations of intake and exhaust ports asymmetrically which allows for the extraction of more energy during the expansion stroke. Three combustion events per rotor revolution result in high power density.

2016 153

Ford introduces second-generation 6.7L Power Stroke V8 Diesel for F-Series Super Duty; Gen 1 hits 500,000 mark

Green Car Congress

The advanced design places the exhaust inside the engine’s V-shape while the air intake is positioned on the outside of the V. millimeters from 64 millimeters, so exhaust gases have a larger surface area to spin the turbo, providing extra power.

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Federal-Mogul Powertrain cuts engine valve development time using new simulation model

Green Car Congress

In the design of intake and exhaust valves for combustion engines, especially those with a high degree of forced induction by supercharging or turbocharging, particular attention is paid to the loading conditions during valve closing.

2016 78

CPT showcases full range of 48V systems at Aachen

Green Car Congress

Controlled Power Technologies (CPT) is showcasing its range of 48V systems at the Aachen Colloquium this week: its Cobra electric compressor, SpeedStart belt-integrated starter-generator, SpeedTorq drivetrain motor-generator, and TIGERS exhaust energy recovery system. CPT’s switched-reluctance motor-generator units can be applied throughout the powertrain for torque assist and kinetic energy recovery, as well as recovering energy from exhaust gases.

2016 76

ORNL-led team developing breakthrough high-temperature, high-strength Al alloy for advanced light-duty engines

Green Car Congress

Projected conditions for internal combustion engines in 2025 push light-duty engine exhaust temperatures into the low end of gas turbine regimes, Haynes said. The increasing piston, cylinder, head, exhaust valve and turbocharger temperatures represent significant structural materials—and cost—challenges. Materials for exhaust and energy recovery.

2016 87

Cummins Emission Solutions introduces next-gen aftertreatment system EcoFit Single Module

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The smaller size enables better heat management and retention for improved fuel economy capability, while the simple single-pass exhaust flow design delivers low back pressure, meeting the needs of end-user customers. EcoFit Single Module. Click to enlarge.

2015 78

Aeristech develops advanced 12V electric supercharger

Green Car Congress

The 48V eSupercharger has completed more than 1600 hours of back-to-back testing at Aeristech’s in-house facility, undergoing more than 500,000 boost events during 28,000 test cycles of a wide selection of operating modes.

2016 112

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

Green Car Congress

At its Innovation Days 2016 event in Munich, BMW unveiled new versions of its three and four- cylinder gasoline and diesel engines. The exhaust manifold and turbocharger are now housed together in the cylinder head.

2016 93

Mercedes-Benz unveils Gen4 A-Class; bigger, new engines, focus on content and user experience

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In an event in Amsterdam, Mercedes-Benz unveiled its new A-Class compact line. In the partial load range between 1250 and 3800 rpm, and depending on the power requirement, the intake and exhaust valves of the second and third cylinder are closed by valve clearance adjustment.

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Advanced ADEPT 48V affordable mild hybrid on path to meet future ultra-low vehicle emissions

Green Car Congress

The final results will be presented at the UK’s LCV2016 event on 14-15 September. Further energy recovery is achieved from CPT’s exhaust-mounted 48V turbine integrated exhaust gas energy recovery system known as TIGERS.

Constellium providing lightweight aluminium solutions for new BMW 5 Series

Green Car Congress

In addition, Constellium designed and produces the rear Crash Management System, including an integrated holder for the exhaust system. Aluminium is ideal for crash management systems because it provides superior energy absorption to help protect vehicle occupants in the event of a collision. Constellium N.V. announced that it supplies aluminium automotive body sheets and crash management systems for the new BMW 5 Series, including its hybrid and touring models.

2017 60

Buick LaCrosse Hybrid Electric Vehicle makes global debut in Shanghai; uses Malibu Hybrid powertrain

Green Car Congress

The all-new Buick LaCrosse Hybrid Electric Vehicle (HEV) made its global debut at the 2016 Buick Day event in Shanghai, where the award-winning Buick Avista concept was also shown for the first time in China.

2019 Ram drops weight, gains 48V eTorque mild hybrid system

Green Car Congress

Cooling air is drawn from inside the truck and vented via the built-in cabin exhausters. A cooled exhaust gas recirculation (EGR) system enables improved fuel economy and emissions performance at higher loads. The exhaust manifolds are cast integral with the cylinder heads.

2018 93

Mitsubishi Heavy Completes First Unit of Latest Version of Waste Heat Recovery System for Marine Engines

Green Car Congress

MHI) has completed its first unit of the STG (Super Turbo Generating) System, a marine-use, high-efficiency, combined power generation system that utilizes waste heat and the exhaust gas from diesel engines. The MHI STG system. Click to enlarge. Mitsubishi Heavy Industries, Ltd.

Oak Ridge researchers pursuing in-cylinder reforming for control of advanced combustion

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The reformate is exhausted to the intake of the remaining cylinders and consumed in spark-ignited (SI) combustion. ORNL developed a unique 6-stroke engine cycle that continually exhausts gases following NVO recompression, allowing real-time chemical analysis.

2014 83

Motiv Engines introduces 2nd-generation split-cycle concept; MkII Clarke-Brayton heavy-duty engine being designed for LNG

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It expands all the way to ambient pressure before the exhaust stroke. The power is produced in almost a 50-50 split between the combustion (central) and exhaust (largest) pistons. Section of the MkII Clarke-Brayton split-cycle engine. Note the three different cylinder sizes.

2014 119

2014 Audi R18 e-tron Quattro Le Mans racer consumes about 40% less fuel than first TDI engine at Le Mans in 2006

Green Car Congress

As before, during braking events at the front axle a Motor-Generator-Unit (MGU) recovers kinetic energy flows into a flywheel energy storage system. The first system is the recovery of thermal energy by an electric generator powered by exhaust gases.

2014 99

Achates Power opposed-piston diesel for TARDEC will demonstrate multi-cylinder configuration

Green Car Congress

Since the pistons cyclically expose or occlude the exhaust and intake ports, there is no valve train. Because the intake and exhaust ports are at the opposite ends of the cylinder, opposed-piston engines have efficient, uniflow scavenging.

2013 93

New 4-cylinder 2.3L EcoBoost on Lincoln MKC small SUV; future EcoBoost prospects

Green Car Congress

Two pivotal factors are the three-port integrated exhaust manifold cylinder head and a twin-scroll turbocharger. The three-port IEM design is the key driver for performance because it improves airflow and optimizes exhaust energy pulses through the turbocharger.

2013 93

Toyota showcases biotechnology breakthroughs

Green Cars News

Japanese carmaker Toyota has shown that its green efforts go beyond simply reducing the exhaust emissions from its vehicles – after showcasing technologies developed as part of its biotechnology and afforestation business. Among the technologies on display at an event held at its Toyota Biotechnology and Afforestation Laboratory in Aichi Prefecture was a newly developed [.].

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

Green Car Congress

Due to the lower exhaust enthalpy of lower temperature engines using PPCI, it is difficult to produce intake boost with acceptable boost system parasitis. A practical powertrain system with robust PPCI combustion is needed, including injection, valvetrain, boost, and exhaust subsystems.

2014 106

Hyundai Motor Group outlines new powertrain strategy: Smart Stream targeting 50% thermal efficiency

Green Car Congress

More than 1,200 engineers and academics are participating in the two-day event, which features presentations exploring the core theme “Knock the Limit of Powertrain Technologies: To Enhance Value for Customers.”.

2017 78

Volkswagen selects Corning DuraTrap filter for 1.6L diesels on MQB platform

Green Car Congress

Designed to capture diesel engine soot particles while minimizing restrictions to exhaust flow, the DuraTrap AT LP 300/10 filter features thinner cell walls and an optimized material microstructure to enable better engine performance and fuel consumption. Corning diesel particulate filters are used in emission control systems to remove particulate matter (soot) from vehicle exhaust.

2012 60

Continental showcases “Super Clean Electrified” connected, optimized 48V mild hybrid diesel; post-Eu6d

Green Car Congress

In this way a minute amount of fuel can be injected into the cylinder after the combustion event. The aqueous urea solution (AdBlue) used for SCR catalysis is injected into the exhaust stream immediately downstream of the heated catalyst.

2017 78

CPT, TU Wien study finds 48V mild diesel hybrid cuts engine-out NOx 9%, 4.5% fuel economy improvement

Green Car Congress

The cost effectiveness of this approach is further underscored by its impact on lean NO x trap (LNT) and selective catalytic reduction (SCR) aftertreatment systems, which have less raw NOx emissions to process, potentially allowing for a reduction in exhaust system cost and complexity, and a longer service life. Diesel exhaust systems can also include a diesel particulate filter (DPF), which may also require less frequent purging.

2017 60

NVIDIA outlines functional safety architecture for NVIDIA DRIVE autonomous vehicle platform

Green Car Congress

At CES, NVIDIA outlined its functional safety architecture for NVIDIA DRIVE, its AI autonomous vehicle platform, which uses redundant and diverse functions to enable vehicles to operate safely, even in the event of faults related to the operator, environment or systems. Road testing is not sufficiently controllable, repeatable, exhaustive or fast, so a realistic simulation environment is essential.

2018 64

Cummins developing new EcoFit urea dosing system targeting China, India, Russia

Green Car Congress

Cummins introduced the EcoFit Urea Dosing System at a customer appreciation event in Beijing, with nearly 100 customers in attendance. de-ionized water, also known as Diesel Exhaust Fluid (DEF) or AdBlue, into the exhaust stream. Cummins Emission Solutions, a division of Cummins Inc. NYSE:CMI), is in the advanced development stages of a new urea dosing system—the EcoFit Urea Dosing System.

New gasoline Endurance V8 with VVEL and DIG to power Nissan Titan full-size pickups

Green Car Congress

The engine features four-valves per cylinder; Variable Valve Event & Lift (VVEL); and Direct Injection, and is rated at 390 hp (291 kW) @ 5,800 rpm and 401 lb-ft (544 N·m) of torque @ 4,000 rpm. A new 5.6-liter Endurance V8 gasoline engine will be available in the all-new Titan and Titan XD full-size pickup trucks.

2015 60

Mercedes-Benz to showcase pre-production version of coming GLC F-Cell fuel cell PHEV at IAA

Green Car Congress

The only exhaust gas emitted was water vapor—1800 tonnes of it in all. The GLC F‑CELL received its aerodynamic finishing touches in the wind tunnels in the Mercedes-Benz Technology Center in Sindelfingen: Even the most extreme weather events can be moved indoors here.

2017 85

GM R&D study explores effect of temperature and O2 concentration on automotive low-load HCCI

Green Car Congress

To understand the auto-ignition characteristics at low-load operation, the GM team investigated the effect of negative valve overlap, injection timing and external exhaust gas recirculation. When the amount of reforming is high, the cyclic variability of reforming increases, which leads to instability of the main combustion event. When exhaust gas recirculation is employed, the amount of reforming does not change, leading to the conclusion about the role of oxygen concentration.

2013 60

Ford Unveils New 6.7-L Power Stroke V-8 Turbocharged Diesel

Green Car Congress

The diesel engine team made improvements and changes throughout the engine architecture—including the use of an “inboard exhaust” design, a first for a modern production diesel engine—to deliver on aggressive horsepower, torque, emissions and fuel economy targets.

2009 78

2014 Ram 1500 EcoDiesel earns 28 mpg highway; best in segment

Green Car Congress

MultiJet 2’s high-dispersion nozzles and advanced-technology servovalve can accommodate up to eight fuel-injection events per cylinder cycle. 2014 Ram 1500 EcoDiesel. Click to enlarge. The 3.6-liter V6 EcoDiesel-powered 2014 Ram 1500 pickup ( earlier post ) has earned a 28-mpg (8.4

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