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The WJ Daytech/AFVTech CNG Hot Rod made its debut at the recent Alternative Fuels and Vehicles ( AF&V 2010 ) show in Las Vegas. 2010 GM e-38 engine processor, calibrations via Fern at AFVTech. The “Gasser” CNG Hot Rod. Click to enlarge. Earlier post.) The team will be doing time trials and emissions testing for verified results.
In a paper to be presented at next week’s 2010 SAE World Congress in Detroit, LiquidPiston, Inc. The paper describes LiquidPiston’s third-generation engine prototype, which was first test-fired in January 2010. For instance, intake/compression, combustion, expansion/exhaust are occurring simultaneously in separate chambers.
KG have agreed to restructure their collaboration in the area of diesel exhaust-gas treatment, with Bosch planning to acquire all the shares in Bosch Emission Systems GmbH & Co. BESG will continue to offer exhaust-gas treatment systems. The partnership will focus on exhaust-gas treatment, diesel injection technology, and electronics.
New research from North Carolina State University found that federal requirements governing diesel engines of MY 2010 tractor trailer trucks have resulted in major cuts in real world emissions of particulate matter (PM) and nitrogen oxides (NO x ). A 2010 truck emitted 2 grams of NO x per gallon of fuel—a decrease of 98%.
When reforming is not used, the fuel and exhaust pass through CV2 unchanged. The basic concept of TCR involves using exhaust heat to promote on-board reforming of hydrocarbon fuels into syngas (a mixture of carbon monoxide and hydrogen). Conklin (2010). The lower inner control volume (CV2) contains the reformer and intercooler.
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.
The transient results illustrate the gradual formation of the nucleation mode particles with continuous increase in exhaust temperatures. Current 2010 USEPA emissions standards for NO x and PM are set at 0.20 However, higher exhaust temperatures resulted in total particle number concentration that were orders of magnitude higher.
Capstone Turbine Corporation has released configurations of the C30 compressed natural gas (CNG) microturbine that meet or exceed emissions standards, including the US Environmental Protection Agency and California Air Resources Board (CARB) 2010 requirements for On-Road Heavy Duty Diesel Engines (HDDE) for Urban Bus. Earlier post.)
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. Energy Environ. doi: 10.1039/b927199f. 2007.12.028.
At the SAE 2010 World Congress in Detroit, a series of new papers explored different aspects of strategies and implementations of using boosted HCCI to extend the HCCI engine operating range. The larger turbocharger increases the pumping work since it cannot be run efficiently by the exhaust gases. Robert Scaringe, Wai K.
The complaint also alleges that the engines did not conform to emission standards applicable to model year 2010 engines. In addition, the school bus program will improve air quality inside school buses by reducing exposure to diesel exhaust. g/bhp·hr) between 2007 and 2010, with full compliance reuqired in 2010.
will show its Extremely Downsized Engine (EDE) at next week’s 2010 SAE World Congress in Detroit. Direct injection (DI) is integrated by replacing the twin spark ignition with a single spark plug on the exhaust side with the DI device in place of the removed spark plug on the intake side. FEV’s 698 cm 3 Extremely Downsized Engine.
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. Transfer from the combustion cylinder to the exhaust cylinder takes place when the exhaust cylinder volume is minimal. and O’Malley, E.
GM Europe is launching the Chevrolet Spark ( earlier post ), providing more detail on the all-new mini car prior to its going on sale in Europe in the first quarter of 2010. The LPG variants (Liquefied Petroleum Gas) of both engines will be rolled-out in select European markets, starting with Italy in February 2010. Click to enlarge.
Renault held a “2010 Environment Workshop” last week to showcase its progress across its range of vehicles’ full lifecycle through the Renault eco² program. Low pressure EGR (exhaust gas recirculation). Lower pressure EGR (exhaust gas recirculation). Technologies to reduce the CO 2 emissions of internal combustion engines.
Because NO 2 constitutes less than 10% of NO x in the diesel engine-out exhaust, an oxidation catalyst is required to increase the NO 2 fraction. Platinum has been found to be especially active for NO oxidation; thus, Pt-based diesel oxidation (DOC) and LNT catalysts have been widely used for diesel exhaust aftertreatment. Science Vol.
As it outlined in 2010, Bosch has increased the maximum injection pressure of its CRSN3-25 injection system for medium- and heavy-duty commercial vehicles to 2,500 bar. This increases flexibility in terms of engine design, promotes lower exhaust and fuel consumption levels, and results in even quieter operation. Click to enlarge.
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.
In addition, the inhomogeneity of the fuel mixture under stratified operation in GDI engines during the compression stroke tends to contribute to higher particulate emissions compared to the exhaust emissions from traditional PFI engines. Hyundai Sonata wall- guided, stoichiometric GDI vehicle (GDI#1) and a 2010 2.4L —Chan et al.
In its mid-term management plan, Komatsu committed to minimizing environmental impact through its business, targeting a 50% reduction in CO 2 emissions from use of its products and production of its equipment by 2030 (compared to 2010 levels) and a challenge target of achieving carbon neutrality by 2050.
2010 engines emissions reduction relative to 2010, 2007, and 2004 US emission standards. earlier post ), found that emissions of NO 2 and other nitrogen oxides—which can have direct health effects and contribute to the formation of smog—were approximately 61% below the 2010 EPA standard and 99% lower than in 2004 engines.
Toyota introduced the Auris Hybrid Synergy Drive (HSD) at the 2010 Geneva motor show, marking a significant milestone in Toyota’s planned deployment of the Hybrid Synergy Drive powertrain across Toyota’s entire model range by early 2020s. Click to enlarge. Earlier post.). Earlier post.). Optimal Drive. Average fuel consumption is 5.9
Future fuel economy standards will result in lower exhaust gas temperatures and limit the use of high-temperature SCR. SwRI and UTSA plan to develop a novel catalyst for low-temperature SCR to reduce emissions. Bartley of the Engine, Emissions and Vehicle Research Division and Assistant Professor Zachary J.
A team from the California Air Resources Board (ARB) reports on their evaluation of the in-use emissions performance of four different heavy-duty diesel engines certified to the MY 2010 or interim MY 2010 NO x standards over a wide range of driving conditions in California in a paper published in the ACS journal Environmental Science & Technology.
One example is the harmonic high-frequency exhaust note produced by the engine’s 8-into-1 exhaust manifold. Among these changes, Yamaha Motor set a goal of reducing Scope 3 CO 2 emissions (emissions produced from the company’s value chain, e.g., use of sold products) by 90% by 2050 compared to 2010.
The VEMB system uses a concentric camshaft, blow-down manifold and scavenge manifold to separate the exhaust event into two phases: high-energy blow-down to the turbo without pumping losses, and high-hydrocarbon scavenge to the EGR system. Source: Borgwarner. Click to enlarge.
The new catalyst technology uses a perforated, ultra-thin-foil metallic substrate designed to withstand the highest exhaust flow rates, while providing minimum exhaust backpressure.
The first study to conduct a comprehensive evaluation of lifetime exposure to new technology diesel exhaust (NTDE)—i.e., exhaust from heavy-duty diesel engines meeting EPA 2007 and later emissions requirements—has found no evidence of carcinogenic lung tumors. Earlier post.) —ACES Review Panel. ACES background.
The process involves introduction of a low reactivity fuel into the cylinder to create a well-mixed charge of low reactivity fuel, air and recirculated exhaust gases. Complies with EPA 2010 emissions guidelines without exhaust after treatment. Key benefits cited of the strategy include: Lowered NO x and PM emissions.
Any new tire or tire tread used for retreading manufactured after first January 2010 may not contain any extender oil with more than 1 mg kg benzo[a]pyrene (B[a]P) or more than 10 mg kg ?1 Non-exhaust traffic sources of particles. 85% of traffic-generated PM 10 has been attributed to non-exhaust sources, they said.
Researchers from the Berner Fachhochschule and EMPA, a Swiss research and services group, are developing a thermoelectric generator for vehicle waste heat recovery that is integrated in the muffler, rather than being installed as a separate thermoelectric generator (TEG) unit on the exhaust line. MRS 2010 Spring, DD2.6:
The Capstone C30 Liquid Fuel microturbine is the only engine certified to the CARB emissions levels that went into effect for Model Year 2010 On-Road Heavy-Duty Diesel Engines to operate on diesel fuel with no exhaust aftertreatment, including urea injection or exhaust catalyst.
Empa researchers Norbert Heeb and Maria Munoz discovered large quantities of benzo(a)pyrene (red bar)—a combustion product responsible for cutting short the lives of cigarette smokers—in the exhaust gas emitted by GDI engines. The other vehicles were all built between 2010 (VW Golf, Euro 4) and 2016 (Citroën C4, Euro 6b).
diesel engine and will use Cummins Westport’s proven spark-ignited, stoichiometric cooled exhaust gas recirculation (SEGR) technology. Exhaust aftertreatment will be provided by a simple, maintenance-free three-way catalyst (TWC). Cummins Westport Inc. has begun development on the ISB 6.7G, a mid-range 6.7-liter The ISB6.7
Ettore Musu from the University of Pisa presented a CFD study of concept at the SAE 2010 Powertrains, Fuels and Lubricants Meeting in San Diego. SAE 2010-01-2107. Ettore Musu, Riccardo Rossi, Roberto Gentili and Rolf Reitz (2010) CFD Study of HCPC Turbocharged Engine (SAE 2010-01-2107 ). —Musu et al., Tamagna, D.,
outlined the range of fuel-saving technologies—including 3- and 4-cylinder engines, CVT transmission with stop-start system and new hybrid system ( earlier post ) to be introduced on new models to be launched in fiscal year 2010. The hybrid system is scheduled to launch on the Infiniti M in late 2010. Nissan’s new 1.5-liter
A team from the California Air Resources Board (ARB), in partnership with the City of Sacramento, has characterized the in-use emissions from model year (MY) 2010 or newer diesel, liquefied natural gas (LNG) and hydraulic hybrid diesel engines during real-world refuse truck operation. The engines were certified to the MY 2010 (0.2
EADS Innovation Works is presenting a concept helicopter with a diesel-electric hybrid propulsion system at the ILA Berlin Airshow 2010, 8-13 June. The OPOC engine is a two-stroke turbocharged diesel engine in which the intake and exhaust ports are at opposite ends of the cylinders. The hybrid helicopter concept. Click to enlarge.
The TJI system, which replaces the spark plug, has supported peak indicated net thermal efficiency of 42% with near zero engine out NO x emissions in single cylinder experiments, according to a set of papers presented by MAHLE and Michigan State University at the SAE 2010 Powertrains Fuels & Lubricants meeting in San Diego.
The SuperTurbo’s supercharger function enhances the transient response of a downsized and turbocharged engine, and the turbo-compounding function offers the opportunity to extract the available exhaust energy from the turbine rather than opening a waste gate. SAE 2010-01-1231 ). V6, and meet the torque curve of a 4.2-liter
Ti-VCT provides extremely precise variable—yet independent—control of timing for intake and exhaust valves. Independent adjustment of intake and exhaust valve timing allows maximum fuel economy at part-throttle, while delivering optimized power in full-throttle situations.
Example for 2010 1. MY 2009, 2010, 2011 and < useful life mileage. Exhaust, Evap, and OBD testing 2. Exhaust and Evap testing + OBD attestation. EPA will accept public comments on this proposal until 23 July 2010. Vehicle/Engine Age. Conversion Manufacturer Requirement. Certificate Issued? Applicability.
Contribution of gasoline and diesel exhaust to SOA over 0% to 50% diesel fuel use. The study determined that, depending on a region’s fuel use, diesel exhaust is responsible for 65% to 90% of vehicular-derived SOA, with substantial contributions from aromatic and aliphatic hydrocarbons. Gentner et al. Click to enlarge. Earlier post.).
EPA will fund: Verified Exhaust Control Technologies: EPA will fund up to 100% of the cost of eligible verified exhaust control technologies. Drayage Truck Replacement: EPA will fund up to 50% of the cost of eligible drayage trucks with a 2010 model year or newer heavy-duty engine.
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