Emission control apparatus for internal combustion engines using

Details Emission control apparatus for internal combustion engines using Emission control apparatus for internal combustion engines using

1979-03-13

1983-09-06

Cox, Ronald B.

Internal-combustion engines

Charge forming device

Having fluidic logic control means

123489, 60285, 60276, F02B 3300, F02M 700

Patent

active

044022913

ABSTRACT:
Emission control apparatus for a multi-cylinder internal combustion engine has an exhaust composition sensor disposed in a passage in common to the exhaust systems of the engine. The sensed concentration of the exhaust composition is modulated in amplitude by a bipolar pulsating signal at a frequency higher than the frequency of the sensed exhaust concentration. A statistical analysis indicates distribution of the ratios within a narrow stoichiometric window.

REFERENCES:
patent: 3676782 (1972-07-01), Lane
patent: 3782347 (1974-01-01), Schmidt et al.
patent: 3827237 (1974-08-01), Linder
patent: 3875907 (1975-04-01), Wessel
patent: 3900012 (1975-08-01), Wahl
patent: 4287865 (1981-09-01), Seitz
"Signal Stabilization". . . by Rufus Oldenberger, ASME Transactions, 11/75, pp. 1869-1872.

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