Engine cylinder intake port

Details Engine cylinder intake port Engine cylinder intake port

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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