Air-fuel mixture control system

Details Air-fuel mixture control system Air-fuel mixture control system

1975-11-24

1977-08-09

Lazarus, Ronald H.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

123134, 123139AW, 123139BG, 261 69A, 261119A, F02M 1718, F02M 1722

Patent

active

040404030

ABSTRACT:
Method and means are provided for effecting the controlled vaporization of a liquid fuel to simplify the ability to control a specific air-fuel ratio for an internal combustion engine. The invention contemplates two basic operations: first, a vaporized fuel is provided in which the fuel content is precisely known. This is accomplished by vaporizing liquid fuel with a diluent gas and separating out any fuel droplets so that the vaporized fuel is provided at the dew point. Second, orifice-venturi combination meters are incorporated in the inlet air and fuel flow paths providing respective air and fuel pressure signals which, when balanced against each other, establish a desired air-fuel ratio over a desired operating range of the internal combustion engine.

REFERENCES:
patent: 2448131 (1948-08-01), Williams
patent: 2672329 (1954-03-01), Zarnak
patent: 2742886 (1956-04-01), McPherson
patent: 2954020 (1960-09-01), Ball
patent: 3800533 (1974-04-01), Zankowski

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