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Study shows biodiesel blends in buses reduce PM, other harmful exhaust elements, EC and CO

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Before they can be used, however, it is essential to understand their physical properties, combustion chemistry, and characterization of the exhaust due to a number of issues associated with fuel properties—for example, a lower heating value and higher cloud point than regular diesel. Kumar et al.

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New Federal-Mogul Powertrain high thermal conductivity seats and guides keep engine valves cooler; improved combustion, lower emissions

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The extreme valve temperatures experienced on today’s highly boosted downsized engines can lead to reduced valve fatigue life and critical valve guide and stem seal temperatures, resulting in the need for expensive valve steel alloys. The valve guide is the main heat path from the valve stem to the cylinder head.

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New power-dense 2.0L GDI turbo with twin-scroll turbocharger and new combustion system offered in 2013 Chevrolet Malibu

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turbocharged engine is available in the 2013 Chevrolet Malibu. It is rated at 259 hp (193 kW), making it one of the most power-dense automotive engines in the industry, GM notes. A twin-scroll turbocharger generates up to 20 pounds of boost, helping the engine optimize power delivery across the rpm band. l/100 km) highway.

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GM introduces new Cadillac 2013 ATS RWD luxury sport sedan; 2 four-cylinder, one V6 gasoline engine options, with diesel in the works

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GM is offering a choice of three power-dense engines, including two new four-cylinder units—a standard 2.5L A diesel engine will enter the line-up in the future, GM said. The new engines also have increased-authority cam phasing to minimize compromiss between efficiency, performance, emissions and drivability.

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Haldor Topsøe ECO-Jet wins award; reducing soot, HC and heavy metal emissions from ships powered by bunker fuel

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Haldor Topsøe A/S has won the Danish Engineering Product Award 2014 (in Danish Ingeniørens Produktpris 2014) for its new ECO-Jet solution. The product is a newly developed catalytic process capable of reducing emission of harmful substances such as soot, hydrocarbons and heavy metals from ships powered by bunker fuel, also known as fuel oil.

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Nissan Unveils New 3-Cylinder 1.2L Supercharged Gasoline Direct Injection Engine; Targeting Lowest Fuel Consumption for Gasoline Engine

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liter direct-injection supercharged engine. liter engine, the HR12DDR, which aims to achieve the lowest level of fuel consumption in the world for gasoline-powered cars while delivering power output equivalent to that of a 1.5L engine and CO 2 emissions of 95 grams per kilometer (New European Drive Cycle). Click to enlarge.

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MAN Diesel & Turbo delivers 1st IMO-certified two-stroke with Tier III NOx control, EGR systems

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The 158,000-m 3 crude-oil tankers will each be powered by individual MAN B&W 6G70ME-C9.5 two-stroke main-engines that feature integrated Exhaust Gas Recirculation (EGR) systems. Vessels with a keel-laid date on or after 1 January 2016 that travel in NO x Emission Control Areas (ECA) require IMO Tier III-certified engines.

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