Internal combustion engine with an exhaust gas recirculating dev

Details Internal combustion engine with an exhaust gas recirculating dev Internal combustion engine with an exhaust gas recirculating dev

1976-11-29

1978-06-20

Lazarus, Ronald H.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

123 30C, F02M 2500

Patent

active

040955699

ABSTRACT:
Disclosed is an internal combustion engine with an exhaust gas recirculating system. The engine has a movable shroud. The shroud is positioned near the rear surface of the valve head of the intake valve so as to obstruct a part of the mixture stream flowing through the valve opening of the intake valve for creating the swirl motion of the mixture in the combustion chamber when the amount of the recirculated exhaust gas is larger than a predetermined level. The shroud is retracted to a position where the shroud does not obstruct the mixture stream flowing in the intake port of the engine when the amount of the recirculated exhaust gas is smaller than said predetermined level.

REFERENCES:
patent: 4014300 (1977-03-01), Klomp
patent: 4031867 (1977-06-01), Yasuda

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