Internal-combustion engines – Valve – Valve head cooperates with manifold
Patent
1985-09-16
1986-08-19
Lazarus, Ira S.
Internal-combustion engines
Valve
Valve head cooperates with manifold
123306, 123193H, F02F 142
Patent
active
046063080
ABSTRACT:
A cylinder intake port in an internal combustion engine which provides a combination of high swirl and flow efficiency. The port features roof ramps of differing angles leading on opposite sides of a valve axis into a swirl bowl with a shelf portion above the port throat. The flow path below the ramp of lower angle is generally tangent with the outer portion of the cylinder and yields a positive swirl component while the flow area on the opposite side of the valve stem remains relatively unrestricted.
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General Motors Corporation
Lazarus Ira S.
Outland Robert J.
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