Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1989-10-23
1991-07-16
Miller, Carl Stuart
Internal-combustion engines
Charge forming device
Fuel injection system
123452, F02M 4100
Patent
active
050315960
ABSTRACT:
A fuel supply system for injection carburetors includes an orifice, a constant flow rate control device, and a fuel supply source and is provided with a first fuel channel circulating fuel of a predetermined flow rate, a second fuel channel branching off from the first fuel channel between the orifice and the constant flow rate control device for injecting the fuel into a suction tube of the carburetor, an air flow rate detecting device capable of detecting a flow rate of air flowing through the suction tube, and a fuel ejection control device capable of metering the flow rate of fuel to be ejected so that a pressure difference with atmospheric pressure which is detected by the air flow rate detecting device is balanced with a fuel pressure difference between the upstream side and the downstream side of the orifice. The fuel supply system is simple in structure and can hold an air-fuel ratio of a gas mixture with a high degree of accuracy to a desired constant value, over the entire operation region, through a single fuel control unit.
REFERENCES:
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patent: 2378036 (1945-06-01), Reggio
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patent: 4539960 (1985-09-01), Cowles
patent: 4625696 (1986-12-01), Radaelli
Mikuni Kogyo Kabushiki Kaisha
Miller Carl Stuart
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