Atomizers

Patent metadata

Field	Value
Publication number	US-11628455-B2
Application number	US-201815904624-A
Country	US
Kind code	B2
Filing date	Feb 26, 2018
Priority date	Feb 18, 2015
Publication date	Apr 18, 2023
Grant date	Apr 18, 2023

Abstract

An atomizer includes an atomizer body with a plurality of air passages defined therethrough from an upstream end of the atomizer body to a downstream end thereof. The air passages together define an air circuit through the atomizer body. A fuel circuit is defined in the atomizer body extending from a fuel inlet to a respective fuel outlet opening into each air passage. The air passages can be arranged circumferentially about a central axis defined by the atomizer body. The fuel circuit can include a manifold extending circumferentially about the atomizer body in fluid communication with a fuel opening in each respective air passage.

First claim

What is claimed is:

1. An atomizer comprising:
an atomizer body with a plurality of air passages defined therethrough from an upstream end of the atomizer body to a downstream end thereof, wherein the air passages converge towards an outlet and together define an air circuit through the atomizer body; and
a fuel circuit defined in the atomizer body extending from a fuel inlet to a respective fuel outlet opening into each of the air passages respectively, wherein each fuel outlet includes a direct, cross-flow injection port into the respective air passage, wherein the fuel circuit defines a fuel passage from the fuel inlet to the fuel outlet that extends along an axis that is angled obliquely relative to an axis along which the air passage is defined, and that converges toward the axis along which the air passage is defined, wherein in addition to being angled obliquely relative to the air passage, the fuel circuit also opens tangentially into the air passage about the axis along which the air passage is defined to induce a tangential component of fuel flow in the air passage, wherein each air passage has a fuel inlet leading from a main fuel passage along the main spray axis to a respective fuel outlet into the respective air passage.

2. An atomizer as recited in claim 1 , wherein the air passages are arranged circumferentially about a central axis defined by the atomizer body.

Assignees

• Delavan Inc
• Collins Engine Nozzles Inc

Inventors

• Ryon Jason A
• Buelow Philip E O
• Smith Steven L
• Prociw Lev Alexander

Classifications

• F23R3/14

  by using swirl vanes · CPC title

• F05D2220/32

  in gas turbines · CPC title

• F02C7/232

  Fuel valves {(control of fuel supply by means of fuel metering valves F02C9/263)}; Draining valves or systems (valves in general F16K) · CPC title

• F23R3/04 Primary

  Air inlet arrangements · CPC title

• F23D11/107

  at least one of both being subjected to a swirling motion · CPC title