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US 12,071,909 B2Granted
Fuel-air regulator location
AssigneeOrbital Austrialia Pty Ltd
InventorsDavid James Caley, John Howard Tubb, Mario Charles Muscat, Arminta Chicka
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AssigneeOrbital Austrialia Pty Ltd
InventorsDavid James Caley, John Howard Tubb, Mario Charles Muscat, Arminta Chicka
Estimating the term…
A dual-fluid injection system for an internal combustion engine, and an unmanned aerial vehicle (UAV) powered by an engine having the dual-fluid injection system. The dual-fluid injection system comprises a liquid fuel metering device and a fluid delivery device operating in tandem. A gas supply system comprising an air compressor and an air delivery path extending between the air compressor and the fluid delivery device is provided to supply pressurised air to the fluid delivery device. The gas supply system comprises an air compressor and an air delivery path extending between the air compressor and the fluid delivery device. A fuel supply system is adapted to deliver liquid fuel to the liquid fuel metering device. A fuel-air regulator is provided for regulating fuel pressure with reference to air pressure to establish and maintain a requisite pressure differential between the fuel pressure and the air pressure. The fuel-air regulator is located remotely from the fluid delivery device and more particularly in close proximity to the air compressor. In a preferred arrangement, the fuel-air regulator is mounted on or integrated with the air compressor or a part thereof.
A dual-fluid injection system for an air cooled internal combustion engine comprising an engine cylinder;
A combination of an air cooled engine, an air compressor, and a dual-fluid injection system for delivering a metered quantity of liquid fuel into a combustion chamber of the engine entrained in air, wherein the dual-fluid injection system comprises a fuel rail assembly comprising a liquid fuel metering device and a fluid delivery device, an air delivery path extending between the air compressor and the fluid delivery device for providing pressurized air to a fluid delivery injector of the fluid delivery device, a fuel supply system adapted to deliver liquid fuel to the liquid fuel metering device, and a regulator for regulating fuel pressure with reference to air pressure, and wherein the regulator is located below the fuel rail assembly and remotely from the fluid delivery device;
Dependencies are inferred from the claim text.