Exhaust gas purifying system for engines

Details Exhaust gas purifying system for engines Exhaust gas purifying system for engines

1977-03-18

1979-04-10

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

By means producing a chemical reaction of a component of the...

F01N 310

Patent

active

041481895

ABSTRACT:
An exhaust gas purifying system for automobile engines or like engines of the type injecting a secondary air for burning the unburned part of the exhaust gases produced in an engine and more particularly an improved purifying system of the type whereby the injection is automatically cut off especially when the engine speed is rapidly decelerated, accelerated, or the engine runs under high loads, in which an air injection conduit is closed by the action of a valve which is actuated by detecting a drop or decrease in a suction vacuum in the engine as the engine is increasing its speed or is running under high loads, and is closed by the action of the aforementioned valve which is actuated under the action of a valve which is operable in response to rapid increases the suction vacuum suffers as the engine speed is rapidly diminishing.

REFERENCES:
patent: 3906723 (1975-09-01), Matumoto
patent: 3955364 (1976-05-01), Lewis
patent: 3962868 (1976-06-01), Matumoto
patent: 3992878 (1976-11-01), Moorman

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