Internal-combustion engines – Intake manifold – Manifold tuning – balancing or pressure regulating means
Patent
1973-08-31
1976-01-06
Myhre, Charles J.
Internal-combustion engines
Intake manifold
Manifold tuning, balancing or pressure regulating means
123119D, 123 97B, F02M 3900
Patent
active
039304795
ABSTRACT:
In a fuel metering device for an externally ignited internal combustion engine with compression of the air-fuel mixture, which system comprises a suction tube for the intake of air in which an air-measuring device and a randomly adjustable throttle valve having a flap are arranged in sequence, and in which an essentially proportionate amount of fuel is metered into the amount of air flowing therethrough, and wherein the proportionality of the fuel amount is adjustable by means of controlling a bypass circumventing the air-measuring device in dependence on engine data, there is described an improvement which comprises a valve arranged in the bypass, the said valve being controllable by the pressure prevailing in the suction tube in the vicinity of the throttle valve, a pneumatically actuated valve means adapted for controlling the valve in the bypass, and conduit means connecting the pneumatically actuated valve means with the suction tube and having an orifice in the latter which orifice is located upstream of the throttle valve, taken in the direction of air flow through the suction tube, and also upstream of the part of the flap of the throttle valve moving against the flow of air during the release of the air supply, yet still in the immediate vicinity of the said flap part.
REFERENCES:
patent: 3561412 (1971-02-01), Yazi
patent: 3601106 (1971-08-01), Nakajima
patent: 3628515 (1971-12-01), Knapp
patent: 3698371 (1972-10-01), Mitsuyama
patent: 3703888 (1972-11-01), Echert et al.
patent: 3710769 (1973-01-01), Knapp
patent: 3738109 (1973-06-01), Tatsutome
patent: 3795230 (1974-03-01), Voshimiera
Greigg Edwin E.
Lazarus R. H.
Myhre Charles J.
Robert Bosch G.m.b.H.
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