29 Jun '11, 3pm

Pinnacle Engines Aims to Slash Fuel Consumption by 25 to 50 Percent: SAN CARLOS, CALIF. --- Most internal comb...

SAN CARLOS, CALIF. --- Most internal combustion engines operate like trumpets, with punctuating valves controlling the flow of air, fuel and exhaust in and out of the cylinder. Pinnacle Engines has come up with an engine that operates more like a trombone. The company, founded in 2007, has developed a somewhat novel opposed piston engine that controls the flow of gases with a sliding cylinder sleeve -- typically an inert component that separates the cylinder from the rest of the engine -- instead of traditional intake valves. The cumulative architectural changes allow Pinnacle’s engine to improve fuel economy by 25 percent to 50 percent, the company claims. An Asian manufacturer has already agreed to adopt it -- assuming development continues as planned -- for two- and three-wheeled vehicles, said CEO Ron Hoge. “We should be in production with our first engines in 2013,” h...

Full article: http://www.greentechmedia.com/articles/read/pinnacle-engi...

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