Device for supplying secondary air for purifying exhaust gases d

Details Device for supplying secondary air for purifying exhaust gases d Device for supplying secondary air for purifying exhaust gases d

1976-11-24

1979-04-03

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

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

60278, F01N 310

Patent

active

041469860

ABSTRACT:
A device for supplying secondary air in proportion to the volume of intake air into the exhaust manifold of an internal combustion engine without any adverse effects on an exhaust gas recirculation system, the device comprising a secondary air supply pipe communicated with the exhaust manifold, means for supplying secondary air through the secondary air supply pipe into the exhaust manifold, secondary air control valve means disposed in the secondary air supply pipe for controlling the flow rate of secondary air flowing therethrough, means for detecting the volume of intake air to said engine, means for detecting the volume of the secondary air flowing through the secondary air supply pipe, and means responsive to both the signal representative of the detected volume of intake air and the signal representative of the detected volume of the secondary air supply for controlling the secondary air control valve means in such a way that the secondary air supply may be in proportion to the volume of intake air.

REFERENCES:
patent: 3696618 (1972-10-01), Boyd
patent: 3826089 (1974-07-01), Nakajima
patent: 3906723 (1975-09-01), Matumoto
patent: 3927524 (1975-12-01), Cholvin
patent: 3945205 (1976-03-01), Atago
patent: 3974651 (1976-08-01), Nakajima
patent: 4047510 (1977-09-01), Nakajima

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