Ford Global Technolgoies, LLC

Bryan Christopher Stoll

Furqan Zafar Shaikh

Daniel M Kabat

Allan Joseph Kotwicki

Rodney John Tabaczynski

Michael Benjamin Levin

Sandro R Balestrino

A system and method for treating exhaust gasses from an engine is described. In one example, the exhaust gasses are routed from the engine to atmosphere through a helical exhaust passage. The helical exhaust passage includes a plurality of spatially separated exhaust passages that separates the exhaust flow into separated smaller flows, wherein the smaller flows are re-introduced into a common passage and re-combined to form a single exhaust flow, and wherein the plurality of spatially separated exhaust passages induces a helical flow pattern within the re-combined exhaust flow.

Helical exhaust passage

A valve assembly and method for controlling flow of gases through a passage between an engine crankcase and an engine intake manifold is provided. The method includes decreasing a flow of gases through the passage between the crankcase and the intake manifold when a temperature of the gases is greater than a predetermined temperature.

Valve assembly and method for controlling flow of gases from an engine crankcase to an engine intake manifold

A valve assembly and method for controlling flow of gases through a passage between an engine crankcase and an engine intake manifold is provided. The method includes increasing a flow of gases through the passage between the crankcase and the intake manifold when a temperature of the gases is below a predetermined temperature.

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South Lyon, MI, United States of America

Bryan Christopher Stoll