Intake apparatus for internal combustion engine

Details Intake apparatus for internal combustion engine Intake apparatus for internal combustion engine

1988-01-11

1989-07-18

Okonsky, David A.

Internal-combustion engines

Multiple cylinder

F02B 7518

Patent

active

048482803

ABSTRACT:
An internal combustion engine of the in-line type having a surge tank located above the engine. Intake tubes connect the surge tank with the in-line engine cylinders. The tubes extend from one side of the engine body in a direction away from the engine body and are then curved upwardly in a U-shaped manner toward the surge tank. Surge tank openings and the ends of the intake tubes connected together are both formed as ellipses having a major axis lying in a direction parallel to the cylinder axes. The cross-sectional shape of the intake tubes gradually changes from an ellipse into a circle at approximately the middle or bend of the intake tube.

REFERENCES:
patent: 4228769 (1980-10-01), Gartner et al.
patent: 4409934 (1983-10-01), Kaindl
patent: 4497287 (1985-02-01), Schleiermacher et al.
patent: 4669428 (1987-06-01), Ichida et al.
patent: 4702203 (1987-10-01), Ohmi et al.
patent: 4708097 (1987-11-01), Hatamura et al.
patent: 4719879 (1988-01-01), Kato et al.

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