Anti-puddling turbulence inducing cylinder head intake port and

Details Anti-puddling turbulence inducing cylinder head intake port and Anti-puddling turbulence inducing cylinder head intake port and

1989-05-08

1990-03-06

Okonsky, David A.

Internal-combustion engines

Multiple cylinder

123195HC, 123 73C, F02M 3510

Patent

active

049056360

ABSTRACT:
An intake manifold and cylinder head intake passageway for an air-cooled internal combustion engine. The manifold is substantially S-shaped and generally vertically oriented and communicates a carburetor having a horizonal bore with an overhead valve cylinder head having a horizontal intake passageway located at an elevation above that of the carburetor. The manifold has a turbulence inducing ridge at the entrance from the carburetor and the cylinder head intake passageway has a similar ridge at the entrance from the manifold. Each elbow bend in the manifold and in the cylinder head passageway is provided with a flat area at the outside curve of the bend which prevents puddling of fuel in the arcuate section of the bend and which causes any fuel which collects there to be spread out in a thin film which is then reintroduced into the air stream by a wedge-shaped ridge transverse to the flat area and rising therefrom to a ridge peak.

REFERENCES:
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patent: 4658767 (1987-04-01), Fujikawa et al.
patent: 4671057 (1987-06-01), Kronich
patent: 4756280 (1988-07-01), Tamba et al.

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