Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1989-04-24
1991-01-15
Miller, Carl S.
Internal-combustion engines
Charge forming device
Fuel injection system
123462, F02M 4100
Patent
active
049845470
ABSTRACT:
The fuel injection system for injection carburetors is provided with an air section of regulator and a fuel section of regulator which are arranged opposedly to each other on both the sides of a suction tube, and a connecting member equipped with a fuel injection valve for controlling fuel injection from the fuel section of regulator into the suction tube. The air section of regulator comprises a depression chamber and an air chamber which are separated from each other by a diaphragm, whereas the fuel section of regulator comprises a fuel chamber and a fuel injection chamber which are separated from each other by another diaphragm and communicated with each other through an orifice. The depression chamber is so adapted as to receive negative pressure from a venturi in the suction tube. The connecting member is connected between said two diaphragms and is urged so as to close the fuel injection port with the fuel injection valve. This fuel injection system is simple in the structure thereof, manufacturable at a low cost, has high responsibility in variation of fuel injection rate relative to variation of flow rate of air to be sucked and assures high metering accuracy of fuel to be injected.
REFERENCES:
patent: Re25672 (1964-10-01), Armstrong
patent: 1955037 (1934-04-01), Viel
patent: 2926646 (1960-03-01), Prentiss
patent: 2957467 (1960-10-01), Ball
patent: 3311099 (1967-03-01), Beaber
patent: 3409276 (1968-11-01), Fuchs
patent: 4228977 (1980-10-01), Haase
Mikuni Kogyo Kabushiki Kaisha
Miller Carl S.
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