Fuel injection device for injection carburetors

Details Fuel injection device for injection carburetors Fuel injection device for injection carburetors

1989-05-16

1990-11-20

Miller, Carl Stuart

Internal-combustion engines

Charge forming device

Fuel injection system

123452, F02M 3900

Patent

active

049710133

ABSTRACT:
The fuel injection device for injection carburetors is provided with a single fuel control unit for injecting a fuel into a suction tube in quantities corresponding to flow rates of air to be drawn into the suction tube, a slow negative pressure passage communicating with a depression chamber of the fuel control unit, a diaphragm valve for opening a main negative pressure passage to communicate the depression chamber with the main negative pressure passage when the air suction rate exceeds a predetermined value, and another diaphragm valve operable to close a slow jet and open a main jet when the air suction rate exceeds the predetermined value. This fuel injection device is simple in the structure thereof, manufacturable at a low cost and has high fuel control accuracy.

REFERENCES:
patent: Re25672 (1964-10-01), Armstrong
patent: 2297918 (1942-10-01), Schorn
patent: 2378036 (1945-06-01), Reggio
patent: 2426153 (1947-08-01), Mock
patent: 2438662 (1948-03-01), Greenland
patent: 2438663 (1948-03-01), Greenland
patent: 2957464 (1960-10-01), Dolza
patent: 4294213 (1981-10-01), Sumiyoshi
patent: 4421089 (1983-12-01), Moore

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