Variable air intake device

Details Variable air intake device Variable air intake device

1997-02-28

1998-11-10

Argenbright, Tony M.

Internal-combustion engines

Engine speed regulator

Having plural throttle valve structure

12318443, 12318448, 123337, F02M 35108, F02D 908

Patent

active

058328947

ABSTRACT:
A variable air intake device for an internal combustion engine includes a first manifold, air intake pipes for connecting the first manifold to individual cylinders of the internal combustion engine to supply intake air, and a second manifold connected to the air intake pipes. The second manifold has a portion between the first manifold and the cylinders. The portion has further mutually closely adjacent air intake pipes. The further air intake pipes have walls with mutually adjacent ports and the further air intake pipes have bearing collars. A closing device has shafts and closing elements in the form of elongate bodies in the vicinity of the bearing collars. Each of the elongate bodies is rotatably mounted as a flap on a respective one of the shafts for closing and opening the ports as a function of a parameter of the internal combustion engine.

REFERENCES:
patent: 4898144 (1990-02-01), Kobayashi et al.
patent: 4945865 (1990-08-01), Lee
patent: 5669350 (1997-09-01), Altmann et al.

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