Power plants – Internal combustion engine with treatment or handling of... – By means producing a chemical reaction of a component of the...
Patent
1980-10-01
1982-08-03
Hart, Douglas
Power plants
Internal combustion engine with treatment or handling of...
By means producing a chemical reaction of a component of the...
60284, 60306, 13762542, 13762548, F01N 322
Patent
active
043421946
ABSTRACT:
An electric air control switching valve for use in controlling the delivery of secondary air from an engine driven air pump selectively, as a function of both engine operation and the operation of its associated emission control system, to either the exhaust manifold of an engine, preferably at a location closely adjacent to the exhaust ports of the engine, during low temperature engine operation, to the atmosphere, as at the dirty side of the air cleaner associated with the induction system of the engine, during low temperature engine deceleration, to a converter in the exhaust system for the engine downstream of the exhaust manifold during normal engine operation, or again to the atmosphere, as at the dirty side of the air cleaner, when the converter temperature exceeds a predetermined temperature.
REFERENCES:
patent: 3662540 (1972-05-01), Murphey
patent: 3835646 (1974-09-01), Ranft et al.
patent: 3906723 (1975-09-01), Matumoto
patent: 3919842 (1975-11-01), Bolton
patent: 4070830 (1978-01-01), Beiswenger
patent: 4077208 (1978-03-01), Sawada
patent: 4174610 (1979-11-01), Hollis
patent: 4177642 (1979-12-01), Klimazewski
patent: 4178755 (1979-12-01), Klimazewski
Jones John E.
Paddock Gordon R.
General Motors Corporation
Hart Douglas
Krein Arthur N.
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