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Chevrolet introduces second-generation Duramax 4-cylinder diesels; global engine

Green Car Congress

has several new parts, including a new water-cooled variable-geometry turbocharger; a new high-pressure common-rail fuel delivery system; a new Exhaust Gas Recirculation (EGR) system; a new intake manifold; a new cylinder head; a new cylinder block; a new balancer shaft unit; and a new Engine Control Module (ECM). Click to enlarge.

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BP awards Colorado State University $5M to research technology for oil recovery from watered-out wells

Green Car Congress

The term watered-out refers to a well that has begun producing large amounts of water—often occurring with waterflooding for enhanced oil recovery—thereby making oil production unprofitable. 2000) Water Control. Upward of 70% of the petroleum can remain in the rock formations of many watered-out wells. Bill Bailey et al.

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Mercedes-Benz introduces next-gen OM 471 heavy-duty engine; more fuel efficient, more torque with fast build-up at very low revs

Green Car Congress

Including overseas markets, production numbers for the OM 471 family have reached the 250,000 mark. 1; and a reduced exhaust gas recirculation rate (EGR rate). Now, all engine output ratings already muster up at least 2000 N·m of torque at just under 800 rpm. Exhaust gas recirculation.

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Winterkorn says Volkswagen developing 10-speed DCT and high-performance diesel; plug-in hybrids offer great potential

Green Car Congress

Since 2000, the group has reduced the fuel consumption of its TDI and TSI engines by more than 30%. Everyone needs to play their part in this: carmakers, politicians and the fuel industry. The Volkswagen Group’s first plug-in hybrids, the Porsche Panamera and Audi A3 e-tron, will shortly be going into full production.

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Additional details on Honda’s new 1.6L diesel

Green Car Congress

This new engine offers 88 kW (120 PS, 118 hp) of power and 300 N·m (221 lb-ft) of torque at 2000 rpm with CO 2 emissions of 94 g/km (equivalent to 65 mpg US, 3.6 All the individual components were redesigned to minimize their weight and size; advanced production techniques have helped reduce weight even further. Earlier post.).

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SwRI D-EGR gasoline demo vehicle delivers diesel efficiency at lower cost; potential for LEV III/Tier 3 emissions

Green Car Congress

Southwest Research Institute (SwRI) announced preliminary test results of its Dedicated-Exhaust Gas Recirculation (D-EGR) demonstration vehicle ( earlier post ) at the SAE 2014 World Congress in Detroit. D-EGR brake specific fuel consumption (BSFC) at 2000 rpm 2 bar BMEP dropped 14.3% Hydrogen-enriched exhaust is routed to the intake.

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Mercedes-Benz powering ahead with €3B strategic engine initiative; increasing electrification, 48V; diesel and gasoline; cylinder deactivation

Green Car Congress

The new six-cylinder in-line engine comes with an intelligent form of turbocharging: assisted by the ISG at start-off, the electric auxiliary compressor (eZV) guarantees immediate high torque when driving off and accelerating, bridging the time before the large exhaust turbocharger cuts in. Almost imperceptible restart of the engine.

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