The Ultimate Flex Fuel Car Engine?

Tuesday, May 24, 2011

In an announcement earlier this month about Pinnacle Engines signing a deal, we learn about "an engine that's ultra-efficient and compatible with most fuels, including gasoline, diesel, natural gas, propane and biofuels." The announcement says:

Pinnacle Engines, developer of a four-stroke, spark-ignited, opposed-piston Cleeves cycle engine, is initially targeting low-horsepower applications like rickshaws in emerging markets for its "breakthrough ultra-efficient engine." The startup company has reportedly signed a licensing and joint-development agreement with an unnamed Asian vehicle manufacturer. Pinnacle says that its engine will power vehicles that are scheduled to hit the streets in the first quarter of 2013.

The core of Pinnacle's technology resides in its "Cleeves Cycle," named after James Montague (Monty) Cleeves, founder of the company. The Cleeves cycle can switch back and forth from the Otto cycle (constant volume combustion) to the Diesel cycle (constant pressure combustion) depending on operating conditions. The result, according to Pinnacle, is an engine that's ultra-efficient and compatible with most fuels, including gasoline, diesel, natural gas, propane and biofuels. Read the rest>>>

This engine would certainly qualify as a flex-fuel vehicle!

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