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24/01/2011
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Scuderi Group, an engine development company that is re-engineering the conventional four-stroke engine to advance fuel-efficient engine design, today announced strong preliminary results from vehicle simulations conducted on the Scuderi split-cycle engine at Southwest Research Institute (SwRI).
Computer models showed that a base, naturally aspirated Scuderi engine operating in a 2004 Chevrolet Cavalier consumes 25% less fuel, and that a naturally aspirated Scuderi Air-Hybrid consumes 30-36% less fuel under similar drive conditions.
Findings are based on projections generated from simulations of the Scuderi engine by the independent laboratory. The Scuderi split-cycle is the first engine design in over 130 years to apply a new thermodynamic process to the internal combustion engine. Using the unique combustion process of firing after top dead center, Scuderi's engine maximizes power output while minimizing fuel consumption.
"These results are only going to get better," said Sal Scuderi, president of Scuderi Group. "The naturally aspirated Scuderi split-cycle engine will continue to improve when further optimized, and the Air-Hybrid performance will increase with higher air tank pressures. We expect the efficiencies to continue to climb as modifications are made and new simulations are conducted, including computer modeling of the 2011 Nissan Sentra running with a Scuderi engine."
The consistency and accuracy of Scuderi's approach to firing after top dead center is essential to the engine's ability to combust cleaner and produce higher fuel efficiencies. The preliminary projections from the Chevy Cavalier simulation is evidence that Scuderi's unique cycle holds significant promise. A report that outlines the findings of the engine's simulation program is expected to be available later this year.
US policy makers have made landmark decisions recently to help tighten fuel efficiency mandates. Cars produced and sold in the U.S. automotive market by 2016 model year are expected to average about 39mpg while trucks are expected to get an average of 30mpg – nearly a 30% increase from current standards. The Scuderi engine is a viable option for automakers to meet these impending new rules because of its significant efficiency. And because the complexity of the engine is low, minimal retooling is needed to produce vehicles based on a Scuderi engine design.
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Author
John Challen
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