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Ford Announces 3-cyl Engine

kgeiger (1339271) writes | more than 2 years ago

1

kgeiger (1339271) writes "The WSJ and other outlets report Ford Motor's formal plans to deploy a three-cylinder, turbo-charged "Ecoboost" engine. About the length of a legal-sized piece of paper (14 in or 36 cm), the 97 kg motor generates 88 kW (118 HP) per liter of displacement. The 1 liter engine produces the same power as current 1.6 l engines. It uses a cast-iron block to retain heat. The new motor wil be featured in Ford's Focus line of world cars."
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You mean like the... (1)

Kupfernigk (1190345) | more than 2 years ago | (#37399582)

Mercedes Benz OM639 three cylinder common rail Diesel, an early 2000s design which produces 94BHP from 1.5 liters and was designed to be narrow enough to mate with automatic gearboxes in compact cars? It has a variable vane turbo and is remarkably compact. It has long been known that reducing the number of cylinders can improve thermal efficiency for a given displacement because of reduced friction and heat losses. Three cylinder engines with balance shafts also have good overall balance. But they have been more expensive to manufacture because the crankshaft has big ends at 120 degrees, not 180.
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