Process for the reduction of noxious gases from carburetor-equip

Details Process for the reduction of noxious gases from carburetor-equip Process for the reduction of noxious gases from carburetor-equip

1980-05-30

1982-08-24

Nelli, Raymond A.

Internal-combustion engines

Engine speed regulator

Responsive to deceleration mode

123339, 123328, F02D 104, F02B 7510, F02D 1108, F02M 114

Patent

active

043455565

ABSTRACT:
A method and apparatus for the reduction of emissions of noxious gases from a carburetor-supplied internal combustion engine for use with an automotive vehicle during periods of deceleration is disclosed. The positioning of one or more butterfly gas valves controlling the flow of gases into the engine is controlled such that during periods of deceleration the gas valves are partially opened in proportion to both the speed of the engine and the level of vacuum in the intake manifold of the engine.

REFERENCES:
patent: 3914619 (1975-10-01), Talmage et al.
patent: 3999524 (1976-12-01), Kobayashi et al.
patent: 4060063 (1977-11-01), Hirasawa
patent: 4123903 (1978-11-01), Hayashi
patent: 4168681 (1979-09-01), Kawai et al.
patent: 4178890 (1979-12-01), Yamabe et al.
patent: 4237838 (1980-12-01), Kinagawa et al.
patent: 4242994 (1981-01-01), Keely

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