Air intake device having a variable suction pipe length

Details Air intake device having a variable suction pipe length Air intake device having a variable suction pipe length

1997-01-15

1998-01-20

Okonsky, David A.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

F02M 3510

Patent

active

057091820

ABSTRACT:
An air intake device with individual suction pipes having a variable effective length includes entry ports which are provided between a region of each of the suction pipes and a manifold. The entry ports can be closed by a closing device. The closing device is disposed outside a range of influence of the intake air flowing through the suction pipes, so that as a result no force which could move the closing device out of place is exerted on the latter. Air guide elements and air guide walls are provided in order to prevent the intake air from breaking away. The air intake device can be used in the intake pipe of an internal combustion engine.

REFERENCES:
patent: 2835235 (1958-05-01), Gassmann
patent: 4619226 (1986-10-01), Ueda et al.
patent: 4646689 (1987-03-01), Katsumoto et al.
patent: 4726329 (1988-02-01), Atkin
patent: 4854270 (1989-08-01), Melde-Tuczai et al.
patent: 4858568 (1989-08-01), Obayashi et al.
patent: 4932369 (1990-06-01), Parr
patent: 5156117 (1992-10-01), Muller et al.

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