Remove Class Remove Downsizing Remove Exhaust Remove Waste
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BorgWarner suggests Valve-Event Modulated Boost system can offer 6-17% fuel economy benefit over already downsized and turbocharged engines

Green Car Congress

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. improvement in fuel economy on an E-class vehicle (e.g., Source: Borgwarner. Click to enlarge.

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DOE to Award $187M to 9 Projects to Improve Vehicle Efficiency for Heavy-Duty Trucks and Passenger Vehicles

Green Car Congress

Three projects will focus on cost-effective measures to improve the efficiency of Class 8 long-haul freight trucks by 50%. The following projects have been selected for awards under two topic areas: Systems Level Technology Development, Integration, and Demonstration for Efficient Class 8 Trucks (SuperTrucks). Grantee Project Award.

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Downsized 5.5L V8 Biturbo in S 63 AMG Delivers 25% Fuel Savings Compared to Predecessor; Stop-Start is Standard

Green Car Congress

With this high-tech package we are “best in class” with respect to fuel consumption, output and torque.” The major difference between the two performance classes is an increase in the maximum charge pressure from 1.0 “For the first time we have combined spray-guided direct petrol injection with turbocharging.

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CPT presenting two papers at SAE World Congress on SpeedStart and TIGERS for 48V mild hybrid systems

Green Car Congress

The number of architectures under consideration for 48V systems is still growing, particularly across different vehicle classes. The unit can be applied to naturally-aspirated or forced induction engines—though most likely will be applied to downsized turbocharged engines as an additional unit to the existing turbocharger.

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Daimler Trucks NA SuperTruck achieves 115% freight efficiency improvement over 2009 baseline; 50.2% engine BTE

Green Car Congress

The Freightliner SuperTruck uses a downsized and downsped 10.7-liter liter engine, a hybrid system, a Waste Heat Recovery (WHR) system, along with a number of other upgrades. The Freightliner SuperTruck features a low-back-pressure, next-generation aftertreatment system that efficiently removes NO x from the exhaust stream.

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Renault 2010 Environment Workshop, Part 1: Combustion Engine Technology and Product Plans

Green Car Congress

Renault’s ongoing downsizing strategy is aimed at reducing the cubic capacity of its engines in order to bring down fuel consumption and CO 2 emissions, without detracting from performance. The downsizing process involved shortening the piston stroke by reducing the size of the crank pin and conrod assembly. Select Engines.

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NRC releases second report on 21st Century Truck Partnership

Green Car Congress

By combining High Efficiency Clean Combustion (HECC) and Waste Heat Recovery (WHR), each demonstrating greater than 10% improvement in BTE, together with other technologies, it should be possible to improve BTE by 20% to achieve the original DOE target of 50% peak BTE. Finding 3-1. Recommendation 3-7. HYBRID VEHICLES. Recommendation 4-3.

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