Car knock preventive system

Internal-combustion engines – Intake manifold – Manifold tuning – balancing or pressure regulating means

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Details

123119D, 123198A, 261 41D, F02M 712

Patent

active

040917800

ABSTRACT:
A valve closes a fuel passage or an air bleed of a low speed circuit of a carburetor to reduce the amount of air drawn from the low speed circuit into a high speed circuit by a main venturi vacuum higher than an induction passageway vaccum, for example, to zero to prevent an air-fuel mixture provided by the high speed circuit from being excessively leaned.

REFERENCES:
patent: 2568987 (1951-09-01), Brunner
patent: 2796243 (1957-06-01), McCuffie
patent: 3331360 (1967-07-01), Fleming
patent: 3517653 (1970-06-01), Ariga et al.
patent: 3620511 (1969-10-01), Reinhardt et al.

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