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Empa, together with FPT Motorenforschung AG Arbon, Politechnico di Milano, lubricant manufacturer Motorex and other partners, is exporing the use of DME as a fuel for heavy-duty engines. A DME test engine has been in operation on a dynamometer in Empa’s Automotive Powertrains Technologies Laboratory. Image: Empa. —Patrik Soltic.
Based on a three-year study of toxic and environmentally relevant pollutants from gasoline direct injection (GDI) engines, Swiss researchers have concluded that some GDI engines emit just as many soot particles as unfiltered diesel cars did in the past. Further, the GDI particles carry numerous carcinogenic substances.
Researchers at Environment Canada have found that vehicle exhaust is a significant source of isocyanic acid (HNCO), a toxic gaseous acid that is a product of various forms of combustion and a potential health concern. Automobile exhaust is also a known source of inorganic acids such as nitric (HNO 3 ) and nitrous (HONO) acids.
A review of 43 studies of the effects of E15 (15% ethanol blends) on Model Year 2001 and newer cars by the National Renewable Energy Laboratory (NREL) found that the studies reviewed showed no meaningful differences between E15 and E10 in any performance category. Fuel system and engine durability.
The new Corvette LT1 engine, the first of the Gen 5 family of Small Block engines, combines several advanced technologies, including direct injection, Active Fuel Management and continuously variable valve timing to support a new advanced combustion system with an 11.5:1 —Tadge Juechter, Corvette chief engineer.
Cummins Westport (CWI) announced its model year 2018 dedicated natural gas engines for regional haul truck / tractor, vocational and transit, school bus, and refuse applications at the Alternative Clean Transportation (ACT) Expo in Long Beach, California. The letter “N” denotes engines that are fueled by natural gas. Earlier post.)
While BMW is pushing toward the electrification of its vehicles in the long term, it still sees great potential for conventional engines. Building blocks for the new engine family include the TwinPower Turbo technology and VALVETRONIC. An essential feature of these engines however, is the VALVETRONIC throttle-free load control system.
The proposed rule would cover conversions of light-duty vehicles and heavy-duty highway vehicles and engines, and would apply to all clean alternative fuels. While properly engineered conversion systems can reduce or at least not increase emissions, poorly designed systems can lead to much more pollution. Vehicle/Engine Age.
Low temperature combustion (LTC) strategies (MK, PCCI, HCCI) are one way researchers are looking to reduce engine-out emissions while maintaining high engine efficiency. Kalghatgi and his group explored both the use of low-cetane fuels and exhaust gas recirculation (SAE 2007-01-0006). SAE 2007-01-0191). Bessonette et al.
CWI) announced that orders are being processed and production of the ISL G Near Zero (NZ) NO x natural gas engine ( earlier post ) has commenced. Exhaust emissions of the ISL G NZ are 90% lower than the current EPA and ARB NO x limit of 0.2 CWI natural gas engines have met the 2010 EPA standard for particulate matter (0.01
SoCalGas is working in partnership with the truck’s owner, Rush Truck Centers, the only company with a 12-liter near-zero natural gas truck equipped with a Cummins Westport ISX12N engine ( earlier post ) and Momentum Fuel system available for rent in Southern California. g/bhp-hr) since 2001. g/bhp-hr optional standard.
liter Power Stroke engine in its F-250 and F-350 models uses Honeywell’s VNT DualBoost turbocharger, a design that uses a double-sided compressor wheel mounted on a single shaft. In addition to DualBoost, Honeywell also offers AVNT, a variable nozzle technology that was first introduced for light truck diesel engines in 2001.
CWI) announced that its new ISL G Near Zero (NZ) natural gas engine is the first mid-range engine in North America to receive emission certifications from both US Environmental Protection Agency (EPA) and Air Resources Board (ARB) in California that meet the 0.02 g/bhp-hr) since 2001. Cummins Westport Inc. as the current 0.20
The ICCT team only examined technical barriers to the consumption of blends of ethanol above 10%: the effect of higher ethanol blends on passenger vehicles and smaller engines and the impact on infrastructure. In this situation, there is not enough fuel evaporation to cool the mixture, and the temperature of the exhaust gas rises.
liter engine can run on biogas or a mixture of natural gas and biogas. Opel engineers increased the volume of the gas tanks to 25 kg from the previous 21 kg. Rather than using conventional steel gas cylinders, the engineers opted for advanced composite material including carbon fiber. The vehicle uses 4.7 kilograms (7.2
Testing was in three steps: Pre-test on highway to determine the maximum temperature of the vehicles T max , measured at the exhaust manifold or turbocharger by driving at the vehicles’ maximum speed (about 180 to 190 km/h). Crash test under “warm and wet”—but not hot—conditions.
Just as the first RAV4 launched the compact crossover SUV segment 22 years ago, the original Highlander redefined the midsize family SUV when it arrived in 2001. liter DOHC four-cylinder engine with two electric motors in a system that’s more compact, and more efficient than before. The 295-horsepower 3.5-liter
In 2001, Railpower launched the first hybrid electric switching locomotive in North America, using battery energy storage, called the Green Goat. By 2014 in the European Union and 2015 in North America, the current diesel locomotive will require substantial changes or exhaust treatments to meet emission rules. —Dave Hurst.
liter Duratec Ti-VCT gasoline engine can now be specified with a 6-speed Ford PowerShift automatic transmission with dual dry-clutch technology. Allows the clutches to disengage when the engine is at idle or during deceleration, thus reducing friction and improving fuel economy and NVH. Dual dry-clutch PowerShift. Earlier post.)
The 21CTP was formed in 2001 to reduce fuel usage and emissions in trucks of Classes 3 through 8. The new report highlights a number of important accomplishments which have occurred since the earlier NRC reviews: The engine systems Goal 1 of a 50% brake thermal efficiency (BTE) for an emissions compliant engine has been achieved.
Due to the unit’s high efficiency, CO 2 emissions are substantially lower than in conventional combustion engines, and no other demonstrable exhaust is discharged—i.e., 2001) Solid acids as fuel cell electrolytes. The reformer converts hydrocarbons into hydrogen, CO 2 and heat. The Electrochemical Society Interface.
Volkswagen is tapping some expertise from Ballard engineers under a long-term services contract, earlier post.) The Isenbüttel site was chosen for this center and construction of a special research center for electric drivetrains began in 2001. Like a car with combustion engine, refueling takes no more than around three minutes.
During the SAE 2009 World Congress in Detroit, Gary Kissel of General Motors presented an update of hybrid, plug-in hybrid, and electric vehicle standards being revised or developed by the Society of Automotive Engineers (SAE) Hybrid Standards Committee. Many of these are scheduled for completion this year.
The last time we saw the Acura Integra was in 2001 as a coupe. liter four-cylinder engine mated to either a six-speed manual with a limited-slip differential or an automatic. The lower fascia was painted in gloss black and featured body-color twin exhaust ports that looked great. The Enthusiast Performance Sedan Reborn.
Gerard “Gus” Gaynor says he knew he would become an engineer when he was 7 years old, inspired by his father’s monthly Popular Mechanics magazines. As his fascination with different engineering fields grew, he set out to explore them. Gaynor’s hands-on experience and love of engineering led to a successful career with 3M in St.
The following lists are not exhaustive or fully comprehensive, but we have tried to include a representative list of resources for each category. Plug In America makes no representations as to the workmanship, creditworthiness, or any other attributes of the companies listed or of their products or services. htm Advocates of the Th!
The attacks of 9/11 in 2001 further strengthened his resolve. He participated in the university's USAF ROTC program before earning a bachelor's degree in aerospace engineering in 1987. in aerospace engineering from Notre Dame. "My desire was to join the Air Force and help build technologies to secure the nation," he says. "I
Although actually attached, and with the latches on the station side closed, the module began trying to line itself up in preparation to fire its main engines using an attitude adjustment thruster. By then the thrusting had stopped, probably when the guilty thruster exhausted its fuel supply.
Marie Curie s sojournin a JPL sandbox Meanwhile back on Earth, engineers at JPL used Marie Curie to mimic Sojourners movements in a Mars-like setting. They exhaustively practiced the remote operation of Sojourner , including an 11-minute delay in communications between Mars and Earth. In all, the mission collected 1.2
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