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US 10,094,352 B2Granted
Swirl impingement prefilming
AssigneeDelavan Inc.
InventorsPhilip E. O. Buelow, Jason A. Ryon, John E. Short
Life of this patent
Estimating the term…
Abstract
A nozzle for injecting liquid includes a nozzle body defining a plurality of injection point orifices and an annular prefilmer positioned downstream of the injection point orifices for prefilming impingement of spray from the injection point orifices on the prefilmer. A swirl antechamber can be defined upstream of the injection point orifices for supplying a swirling liquid flow to the injection point orifices for impingement of a swirling flow on the prefilmer.
Claims10
A nozzle for injecting liquid comprising:
- a nozzle body defining a plurality of injection point orifices and an annular prefilmer positioned downstream of the injection point orifices for multipoint prefilming impingement of spray from the injection point orifices on the prefilmer;
- a plurality of swirl antechambers disposed circumferentially relative to each other, each swirl antechamber upstream of a respective one of the injection point orifices, for supplying a swirling liquid flow to each respective injection point orifice for impingement of a swirling flow on the prefilmer, wherein the plurality of swirl antechambers are larger in diameter than each respective injection point orifices;
- and
- a backing member disposed adjacent the nozzle body and defining an annular flow channel between the backing member and the nozzle body, the backing member in fluid communication with and upstream of the swirl antechambers, wherein the backing member partially obstructs an opening of the swirl antechambers to tangentially feed the swirl antechambers to cause swirling flow within the swirl antechambers.
1 more element
A nozzle for injecting liquid comprising:
- a nozzle body defining an annular flow channel and a plurality of swirl antechambers in fluid communication with the annular flow channel and with an injection point orifice defined in each swirl antechamber, wherein the annular flow channel feeds into each swirl antechamber to impart a tangential flow component on fluids entering each swirl antechamber to generate swirl on a spray issuing from each injection point orifice, wherein each swirl antechamber is larger in diameter than each injection point orifice;
- a backing member disposed adjacent the nozzle body and configured to impart swirling flow within the annular flow channel to tangentially feed the swirl antechambers to cause swirling flow within the swirl antechambers, wherein the backing member partially obstructs an opening of the swirl antechambers to tangentially feed the swirl antechambers to cause swirling flow within the swirl antechambers;
- and
- a prefilmer downstream of each injection point orifice, wherein the prefilmer is positioned to intersect a spray cone defined by each injection point orifice for prefilming impingement of swirling spray from each injection point orifice on the prefilmer.
1 more element
Dependencies are inferred from the claim text.