Engine exhaust control system

Details Engine exhaust control system Engine exhaust control system

1986-01-06

1987-05-19

Lazarus, Ira S.

Power plants

Internal combustion engine with treatment or handling of...

Divider, collector, valve means, or boundary layer device...

60312, 181226, 181254, 181239, 123323, F01N 700

Patent

active

046656928

ABSTRACT:
An exhaust control system for use in an internal combustion engine for controlling the flow of exhaust gases discharged from the engine to the atmosphere. The apparatus determines a first condition representing the engine speed being higher than a predetermined value, a second condition representing the transmission being not in neutral, and a third condition representing the throttle valve being not at or near its closed position. A control circuit generates a command signal only upon simultaneous occurrence of the first, second and third conditions. The apparatus includes a device responsive to the command signal from the control circuit for increasing the effective area of the exhaust passage.

REFERENCES:
patent: 2072372 (1937-03-01), Kingsley
patent: 2730090 (1956-01-01), Hall
patent: 3368345 (1968-02-01), Walker
patent: 3751921 (1973-08-01), Blomberg et al.
patent: 4100737 (1978-07-01), Sugiliara
patent: 4149618 (1979-04-01), Horie

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