Helically-shaped intake port of an internal combustion engine

Details Helically-shaped intake port of an internal combustion engine Helically-shaped intake port of an internal combustion engine

1981-08-04

1985-05-28

Lall, Parshotam S.

Internal-combustion engines

Valve

Valve head cooperates with manifold

123306, F02M 3510

Patent

active

045193460

ABSTRACT:
A helically-shaped intake port comprising a helical portion and an inlet passage portion which is tangentially connected to the helical portion and extends so as to be slightly curved. The intake valve is arranged at the outlet open end of the helical portion. The first side wall of the inlet passage portion, which is located near the axis of the intake valve, has on its upper portion an inclined wall portion which is arranged to be directed downwards. The width of the inclined wall portion of the inlet passage portion is gradually increased towards the helical portion. The second side wall of the inlet passage portion, which is located remote from the axis of the intake valve, is vertically arranged and smoothly connected to the peripheral side wall of the helical portion, which extends circumferentially about the axis of the intake valve.

REFERENCES:
patent: 3020896 (1962-02-01), Meurer et al.
patent: 3273551 (1966-09-01), Julien et al.
patent: 3335707 (1967-08-01), Heinrich

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