A multi-function spray nozzle for engine applications useful as a cooling device to introduce a fluid into the fluid stream of the engine, and as a cleaning device to introduce a fluid to clean internal components of the engine. The nozzle includes a multi-layered arrangement of etched plates defini
A multi-function spray nozzle for engine applications useful as a cooling device to introduce a fluid into the fluid stream of the engine, and as a cleaning device to introduce a fluid to clean internal components of the engine. The nozzle includes a multi-layered arrangement of etched plates defining flow paths for the first and second fluids. Non-radial feed slots direct the first fluid into a cylindrical swirl chamber. The swirling fluid exits the swirl chamber through a spray orifice or a prefilmer, depending on whether the nozzle is configured as a simplex or prefilmer nozzle. Other non-radial feed slots direct the second fluid inward, downstream of the first fluid, to create a fine dispersion of droplets for fluid stream cooling purposes. During cleaning, only the first fluid is introduced through the nozzle, which results in a larger droplet size suitable for cleaning purposes of the internal components of the engine.
대표청구항▼
1. A multi-function spray nozzle for creating and distributing fluid sprays, comprising:a connector having a first port for receiving a first fluid, and a second port for receiving a second fluid; a nozzle tip for delivering the first and second fluids in a spray; and an extension assembly extending
1. A multi-function spray nozzle for creating and distributing fluid sprays, comprising:a connector having a first port for receiving a first fluid, and a second port for receiving a second fluid; a nozzle tip for delivering the first and second fluids in a spray; and an extension assembly extending between and fluidly interconnecting the connector and nozzle tip, wherein a plurality of stacked plates are received within the nozzle tip and include flow passages which cooperate to direct the first and second fluids through the nozzle tip and deliver the first and second fluids in a spray, further including an inside extension subassembly including i) a fluid tube received within a central bore of the extension assembly, and ii) the nozzle tip, the fluid tube internally defining a first flow path and fluidly connected between the first port and the nozzle tip; and externally defining a second flow path from the second port and between the tube and an inner wall of the central bore of the extension assembly to the nozzle tip. 2. The multi-function spray nozzle as in claim 1, wherein the fluid tube is elongated.3. The multi-function spray nozzle as in claim 1, wherein the plates include flow passages and a spray orifice defining a first flow path through the nozzle tip, and other flow passages which define a second flow path through the nozzle tip, the flow passages and spray orifice configured to define a simplex nozzle delivering a hollow, cone-shaped spray.4. A multi-function spray nozzle for creating and distributing fluid sprays, comprising:a connector having a first port for receiving a first fluid, and a second port for receiving a second fluid; a nozzle tip for delivering the first and second fluids in a spray; and an extension assembly extending between and fluidly interconnecting the connector and nozzle tip, wherein a plurality of stacked plates are received within the nozzle tip and include flow passages which cooperate to direct the first and second fluids through the nozzle tip and deliver the first and second fluids in a spray, wherein the plates include flow passages and a prefilmer lip defining a first flow path through the nozzle tip, and other flow passages which define a second flow path through the nozzle tip, the flow passages and prefilmer lip configured to define a prefilmer nozzle delivering a hollow, cone-shaped spray. 5. The multi-function spray nozzle as in claim 1, wherein the nozzle tip includes a bowl-shaped cover receiving the plate stack, the cover including an annular upstream end connected to a downstream end of a body of the extension assembly, and an annular end wall defining a central circular opening.6. A multi-function spray nozzle for creating and distributing fluid sprays, comprising:a connector having a first port for receiving a first fluid, and a second port for receiving a second fluid; a nozzle tip for delivering the first and second fluids in a spray; and an extension assembly extending between and fluidly interconnecting the connector and nozzle tip, wherein a plurality of stacked plates are received within the nozzle tip and include flow passages which cooperate to direct the first and second fluids through the nozzle tip and deliver the first and second fluids in a spray, wherein the plate stack includes a series of plates defining a first flow path through the nozzle tip, and including non-radial feed slots and a central, cylindrical swirl chamber, where a first set of non-radial feed slots intersect the swirl chamber and provide the first fluid in a swirling manner into the swirl chamber. 7. The multi-function spray nozzle as in claim 6, further including a plate defining a spray orifice along the central axis at a downstream end of the swirl chamber such that the first fluid exits the swirl chamber in a hollow, cone-shaped spray.8. The multi-function spray nozzle as in claim 6, wherein the plates defining the central cylindrical swirl chamber include a prefilmer lip such that the first fluid exits the swirl chamber in a hollow, cone-shaped film and breaks into a spray.9. The multi-function spray nozzle as in claim 6, wherein the plate stack includes a central passage downstream of the swirl chamber, and a series of plates defining a second flow path through the nozzle tip, and including a second set of non-radial feed slots which intersect the central passage downstream of the swirl chamber, and provide the second fluid in a swirling manner toward the central axis of the nozzle.
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