Internal combustion engine operation utilizing exhaust gas recir

Details Internal combustion engine operation utilizing exhaust gas recir Internal combustion engine operation utilizing exhaust gas recir

1974-12-17

1977-03-15

Myhre, Charles J.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

123 32EA, F02B 3300

Patent

active

040118452

ABSTRACT:
The invention relates to a method and apparatus for reducing the amount of undesirable products of combustion which are discharged to the atmosphere from an internal combustion engine during operation of the latter. The apparatus comprises, means for segregating a portion of an exhaust gas stream from the engine's exhaust discharge manifold or valve. The hot exhaust gas segment is cooled, combined with air to form a preliminary mixture, and delivered to the engine's combustion chambers. A predetermined volume of fuel is injected into the combustion chamber whereby to intermix with a portion of the preliminary mixture in such a manner that at least a part of the latter becomes combustible.
The apparatus for achieving the method comprises, means for recycling said segment of said hot exhaust gas. It further comprises means for controllably regulating the flow of the latter in response to the load variations imposed on the engine.

REFERENCES:
patent: 2114548 (1938-04-01), Stadlman
patent: 3470857 (1969-10-01), Stivender
patent: 3610219 (1971-10-01), Sciabica
patent: 3612020 (1971-10-01), Moulds
patent: 3677239 (1972-07-01), Elkins

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