Cylinder head for an internal combustion engine

Details Cylinder head for an internal combustion engine Cylinder head for an internal combustion engine

1996-01-24

1997-01-28

McMahon, Marguerite

Internal-combustion engines

Means to whirl fluid before, upon, or after entry into...

Having multiple oxidant inlet means

F01L 320, F02B 3100, F02F 100

Patent

active

055969658

ABSTRACT:
A cylinder head includes a first intake port for generating a swirl flow in a cylinder and a second intake port for causing a part of intake air to flow into the cylinder in a direction opposite to the swirl flow. The second intake port has a wall at a downstream end thereof, extending below a corresponding intake valve. A portion of the wall adjacent to an exhaust port has a lower or downstream end which is preferably substantially perpendicular to a lower surface of the cylinder head. Accordingly, the intake air flow passing through the second intake port is directed downwardly. Therefore, the swirl flow generated in the cylinder is less likely to be weakened by opposing flows.

REFERENCES:
patent: 4354463 (1982-10-01), Otani et al.
patent: 5138989 (1992-08-01), Fraidl
patent: 5230310 (1993-07-01), Hashimoto
patent: 5335634 (1994-08-01), Hashimoto et al.
patent: 5408958 (1995-04-01), Esch et al.

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