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A new study led by researchers at the University of Michigan compared regulated and unregulated emissions from both light-duty passenger car (1.7 They found that the level of emissions of regulated and unregulated pollutants in diesel exhaust depends on fuel, load, engine calibration, and exhaust aftertreatment technology.
The TEG technology, which converts waste heat from gas exhaust into electric energy and has the potential to improve passenger car fuel efficiency by as much as 5%. TEG & Exhaust System in Lincoln MKT. This follow-on light-duty vehicle project, funded in 2011, has a target of a 5% fuel economy improvement. Click to enlarge.
The OP4 light-duty opposed-piston diesel. Achates Power, which is developing a family of two-stroke, compression-ignition (CI) opposed-piston (OP) engines, has designed and is developing a light-duty diesel concept engine, the OP4. Light-duty OP4. In catalyst light-off mode, the OP4 showed a NO x flow rate of 0.9
With Ford adopting Honeywell turbo technologies to boost its 2011 Super Duty Trucks, Honeywell says it will be turbocharging 70% of the US diesel light truck segment. General Motors uses Honeywell turbo technologies in its light duty diesel trucks as well. Ford’s new 6.7-liter Earlier post.)
Imagine what you could do with a light weight, quiet, 20 HP diesel engine the size of a shoe box.”. For instance, intake/compression, combustion, expansion/exhaust are occurring simultaneously in separate chambers. In addition, the engine is ultra-compact, delivering one horsepower per pound, and operating quietly without a muffler.
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. Exhaust, Evap, and OBD testing 2. MY 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 and < useful life mileage. Exhaust and Evap testing + OBD attestation.
The updated final rule covers alternative fuel conversion of light-duty vehicles and heavy-duty highway vehicles and engines. Exhaust, Evap, and OBD testing. MY 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 and < useful life mileage. Exhaust and Evap testing + OBD scan tool test and attestation. Intermediate age.
The remaining two-thirds are lost as waste heat going into the environment through the car’s exhaust emissions and through the radiator. Use of the thermal energy contained in the car’s exhaust gas also offers major saving and comfort potentials.
ARB estimates that motorcycles produce up to 15 times the emissions per mile as the average new car or light-duty truck. grams per kilometer (g/km) HC+NO x beginning with 2004 models and a Tier II standard of 0.8 On average, motorcycles sold in California by major manufacturers in 2004 achieved emissions of 0.92 Background.
The unthrottled nature of the compression ignition process provides high engine efficiency while achieving compliant exhaust emissions with conventional, low-cost aftertreatment. This—in addition to the opposed engine architecture—could increase fuel efficiency by 40-50% over the comparable spark-ignited gasoline engine, Achates said.
This technology also optimizes phasing on both intake and exhaust camshafts by spinning them ever so slightly to advance or retard valve timing, resulting in improved throttle response at initial throttle tip-in, reduced emissions at part throttle and enhanced efficiency at higher rpm. Gains in new vehicle fleet economy by OEM, 2004-2009.
the developer of a family of two-stroke compression-ignition opposed-piston engines ( earlier post ), has performed an in-depth study on the performance and emissions of light-duty version of its engine packaged for a full-size pickup truck. Achates Power, Inc., Background. Air system. Kalebjian, C., Kessler, J., Rakovec, N.
Initial test results of the transient control and exhaust temperature management capability of Achates Power’s opposed piston (OP) two-stroke diesel engine show that under a typical transient maneuver—25% to 100% load step at low and constant engine speed—the engine can control both NO x and soot with a minimal torque lag.
Between 1997 and 2004, meetings were held at senior manager level, sometimes at the margins of trade fairs or other events. From 2004 onwards, the cartel was organized via the truck producers’ German subsidiaries, with participants generally exchanging information electronically. This was complemented by phone conversations.
At idle and low loads, rebreathing of hot exhaust gases provided stable compression ignition with very low engine-out NO x and PM emissions. Rebreathing enabled reduced boost pressure, while greatly increasing exhaust temperature. Hydrocarbon and carbon monoxide emissions after the oxidation catalyst were very low. Earlier post.).
US small car sales—combined B- and C-segments—grew from about 14% of the market in 2004 to more than 21% now. Ti-VCT applies variable cam timing to both the intake and exhaust camshafts of its DOHC design, using electronic solenoid valves to direct high-pressure oil to control vanes in each of the camshaft sprocket housings.
Ford has been selling hybrids and, later plug-ins, since 2004. Ford’s turbocharged, direct-injection EcoBoost technology is available in every new Ford car, utility and light-duty pickup in North America beginning this year. It’s not just fuel efficiency, not just power efficiency, but it is weight efficiency as well. —Raj Nair.
Because the exhaust system transports only water, it can be made of lightweight polymer. The first technology demonstrator was the compact A2H2 in 2004, which was already equipped with a polymer electrolyte membrane fuel cell (PEM). These components have a high-voltage electric drive and are powered by the fuel cell.
Like electric cars, electric bicycles are classified as zero-emission vehicles, meaning they emit no exhaust gases. It is no sweat to restart, so the temptation to zip through a red traffic light, menacing people as you do so, is removed. As your correspondent waits at a light, a fit pedal cyclist pulls up beside her.
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