Tuned intake air system for a rotary engine

Details Tuned intake air system for a rotary engine Tuned intake air system for a rotary engine

1990-12-20

1992-06-09

Koczo, Michael

Internal-combustion engines

Rotary

With charge treatment means

418 86, F02B 5300

Patent

active

051197782

ABSTRACT:
A tuned combustion air intake system for a rotary engine used in an outboard motor includes a plenum chamber mounted on the rear of the engine directly against the exhaust manifold, which plenum receives cooling air discharged from the engine. Air from the plenum chamber is directed into an elongated outlet conduit having an extended tuned length to provide an optimum pulsed air flow to the combustion air inlet of the engine. Direct attachment of the plenum chamber and integral outlet conduit to the rear of the engine eliminates extended length tubular connections of the prior art and allows the width of the engine to be kept to a minimum, thereby adapting the system to enclosure in a conventional cowl for an outboard motor.

REFERENCES:
patent: 3370575 (1968-02-01), Soubis
patent: 3967593 (1976-07-01), Garside
patent: 4000721 (1977-01-01), Garside
patent: 4911122 (1990-03-01), Corbett et al.

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