Gas and liquid contact apparatus – Fluid distribution – Valved
Patent
1975-05-12
1976-08-31
Miles, Tim R.
Gas and liquid contact apparatus
Fluid distribution
Valved
261 51, 261 69R, 123139AW, 137 85, 13759617, 1376275, F02M 722
Patent
active
039781755
ABSTRACT:
An electromagnetic vacuum regulator responds to an electrical signal to supply a regulated vacuum output to vacuum sensitive air-fuel ratio control means in an engine carburetor, the air-fuel ratio control means providing a leaner air-fuel ratio with increasing manifold vacuum. The vacuum regulator includes a regulated vacuum output connected to the air-fuel ratio control means, a constant pressure input connected to a source of constant low vacuum and a variable pressure input normally supplied with the engine manifold vacuum so that the regulated output vacuum is normally always greater than the constant vacuum supplied to the constant pressure input. The carburetor throttle mechanism, however, includes means to actuate a valve opening the variable pressure inlet to the atmosphere during wide open throttle so that the regulated vacuum outlet supplies atmospheric pressure for a richer than normal air-fuel ratio regardless of the electric signal.
REFERENCES:
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patent: 3455260 (1969-07-01), Mennesson
patent: 3605813 (1971-09-01), Nakano et al.
patent: 3650258 (1972-03-01), Jackson
patent: 3677241 (1972-07-01), Gele et al.
patent: 3739762 (1973-06-01), Jackson
patent: 3869528 (1975-03-01), Mick
patent: 3906910 (1975-09-01), Szlaga, Jr.
General Motors Corporation
Miles Tim R.
Sigler Robert M.
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