In-line cylinder head for internal combustion engine

Details In-line cylinder head for internal combustion engine In-line cylinder head for internal combustion engine

1989-12-11

1991-12-31

Kamen, Noah P.

Internal-combustion engines

Valve

Valve head cooperates with manifold

123193H, 123306, F02B 2308

Patent

active

050762249

ABSTRACT:
An improved cast cylinder head for a high performance internal combustion engine is provided by an especially configured quench surface from which a contoured combustion chamber extends having a metal mass buildup shrouding the exhaust gases through the exhaust valve seat. A metal mass buildup configuration is also provided about the intake valve seat which acts in conjunction with an especially configured and proportioned valve intake passage to draw the fuel-air mixture into the combustion chamber in an unshrouded, helical flow pattern. The intake passageway configuration is such that a rich fuel-air mixture is drawn through the intake valve seat at a portion thereof remote from said exhaust valve seat while a lean fuel-air mixture exits the intake valve seat adjacent the exhaust valve seat. Positioning the fuel-air mixture in such a manner in combination with the unshrouded metal mass buildup minimizes short-circuiting of the fuel through the exhaust valve seat in a valve overlap condition.

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Article Entitled "General Motor's Little Engine That Could" In the Aug. 3, 1987 Issue of Business Week, pp. 88-89.

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