Gas-assisted fluid atomizing injector
AssigneeNostrum Energy Pte. Ltd.
InventorsNirmal Mulye, Osanan L. Barros Neto
Life of this patent
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Abstract
A liquid injector atomizer for direct injection in to the cylinder of an internal combustion engine is provided, with a supply of pressurized liquid a supply of pressurized gas, a body, and a nozzle with two or more orifices each for the liquid and the gas. Each orifice directs a jet of metered pressurized liquid or gas out of the injector body. At least two of the liquid jets are aimed at one or more collision points, where at least two gas jet streams collide at a same collision point or another collision point, thereby creating a finely atomized liquid.
Claims31
A liquid injector for producing an atomized liquid, the liquid injector comprising:
- an injector body having a central axis, the injector body comprising:
- a liquid inlet,
- a liquid metering means either within the body or outside the body, and
- a liquid outlet comprising a nozzle, the nozzle comprises a central axis, an interior end, and an exterior end, two or more passages originating from the interior end and terminating at the exterior end with a respective liquid orifice;
- and
- a gas regulating means configured to regulate the flow or pressure of a gas through gas orifices internal or external to the injector body;
- wherein a pressurized liquid is forced through the two or more passages to the orifice terminating each passage, and at least one gas jet being forced through the gas orifices, where each liquid orifice and each gas orifice directs a jet of the pressurized liquid and gas,
- wherein the orifices are configured such that at least two liquid jets and two gas jets are aimed at two or more common focal points in coaxial alignment with the central axis external to the injector, wherein a collision of pressurized liquid jets and gas jets at each focal point creates an atomized form of the liquid.
A liquid injector for producing atomized liquid, the injector comprising:
- an injector body having a central axis, the injector body comprising:
- a liquid inlet,
- a liquid metering means either within the body or outside the body, and
- a liquid outlet comprising a nozzle, the nozzle comprises a central axis, an interior end, and an exterior end, two or more passages originating from the interior end and terminating at the exterior end with a respective liquid orifice;
- and
- a gas regulating means configured to regulate the flow or pressure of a gas through gas orifices external to the injector body;
- wherein a pressurized liquid is forced through the two or more passages to the orifice terminating each passage, and at least one gas jet being forced through the gas orifices, where each liquid orifice and each gas orifice directs a jet of the pressurized liquid and gas,
- at least two liquid jets colliding at a first focal point;
- and
- at least two gas jets colliding at second focal point, the first and second focal points juxtapositioned to one another in coaxial alignment with the central axis, wherein a distance between the juxtapositioned two focal points ranges from less than the mean diameter of the liquid orifice up to about 10 times the mean diameter of the liquid orifice.
A liquid injector for producing atomized liquid, the liquid injector comprising:
- a first fluid inlet;
- a second fluid inlet;
- a first annular cavity in fluid communication with the first fluid inlet;
- a second annular cavity in fluid communication with the second fluid inlet, the second annular cavity being disposed coaxially and concentric to the first annular cavity;
- a nozzle having a plurality of exit orifices formed on an exterior surface, each exit orifice defining an end of a respective through passage formed in an interior portion of the nozzle, a first subset of each respective through passage providing fluid communication between the respective exit orifice and the first annular cavity and a second subset of each respective through passage providing fluid communication between the respective exit orifice and the second annular cavity,
- wherein the plurality of exit orifices are configured to direct fluid jets to one or more collision focal points.
Dependencies are inferred from the claim text.