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Fallbrook Technologies Inc. developing variable speed supercharger drive using its CVP technology

Green Car Congress

Fallbrook Technologies Inc. is developing a variable speed supercharger utilizing its NuVinci continuously variable planetary (CVP) technology. In light of the successful test results, Fallbrook and the tier one manufacturer are currently in discussions with potential OEM customers for the NuVinci supercharger drive.

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Study Assesses Product Attribute Trade-offs and Technological Progress; Meeting Proposed Obama Fuel Economy Standards Will Require Downsizing and Change in Fleet Mix

Green Car Congress

Based on detailed model-level data for US light-duty vehicles from 1980 to 2006, a recent analysis by a UC Davis researcher found that if weight, horsepower and torque had been held at their 1980 levels, fuel economy for both passenger cars and light trucks could have increased by nearly 50% from 1980 to 2006. Knittel, 2009.

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HyBoost concept achieving close to Prius-level CO2 emissions; aggressive downsizing with advanced boosting and micro-hybrid system

Green Car Congress

HyBoost achieves this by combining aggressive 50% downsizing of the engine with an electric supercharger for transient low-speed performance, and a micro-hybrid stop-start and energy recuperation systems, Boggs said. Downsizing the 2.0-liter Click to enlarge. —David Boggs. Micro-hybrid market. million units per year by 2020.

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Federal Mogul develops advanced aluminum piston for high-performance light-duty diesel engines

Green Car Congress

Federal-Mogul’s DuraBowl technology strengthens the crown of a piston, improving the aluminum’s strength where it is most needed. This technology will play a significant role in enabling OEMs to introduce more efficient. downsized diesel engines with improved fuel economy and CO 2 emissions. Click to enlarge. Click to enlarge.

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Federal-Mogul Introduces New Diesel Piston Design to Support Downsized Engines with Higher Output

Green Car Congress

DuraBowl technology optimizes the grain size around the piston rim to provide much improved resistance to cracking under both mechanical and thermal loads. The dark grey areas are silicon particles; the light grey areas aluminium. —Frank Doernenburg, Federal-Mogul director of technology, pistons and pins. Click to enlarge.

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Pinnacle 4-stroke opposed-piston SI engine shows fuel economy improvements of between 30-60% at light loads, 12-30% at medium loads over conventional

Green Car Congress

The results represent a light-load indicated efficiency improvement of 15-30% (up to 40.9%). With the extended lean operation of the sleeve-valve engine, NO x emissions remain low for light to medium loads and rise back to typical levels during the brief enrichment periods required to maintain competitive BMEP levels at higher loads.

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NRC report finds significant number of near-term technologies could greatly reduce fuel consumption in passenger cars

Green Car Congress

According to its estimates, adopting the full combination of improved technologies in medium and large cars and pickup trucks with spark-ignition engines could reduce fuel consumption by 29% at an additional cost of $2,200 to the consumer. Source: NRC. Click to enlarge.

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