Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS3682390 A
Publication typeGrant
Publication dateAug 8, 1972
Filing dateMay 13, 1970
Priority dateMay 13, 1970
Publication numberUS 3682390 A, US 3682390A, US-A-3682390, US3682390 A, US3682390A
InventorsAlan Gillingham Cheshire, Harold Place
Original AssigneeLucas Industries Ltd
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Liquid atomizing devices
US 3682390 A
Abstract
A liquid atomizing device in which a tubular body is open at both ends and has inclined blades mounted within one end to impart a swirling motion to air passing through the body. Fuel is supplied through passages which open on to the downstream edges of the blades, with the fuel being injected transversely into the swirling airstream.
Images(1)
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

United States Patent Cheshire et a1.

[54] LIQUID ATOMIZING DEVICES [72] Inventors: Alan Gillingham Cheshire, Bumley,

Lancashire; Harold Place, Accn'ngton; both of Englandj a v [73] Assignee: Joseph Lucas (Industries) Limited [22] Filed: May 13, 1970 [21] Appl. No.: 36,802

[52] US. Cl ..239/399 [51] Int. Cl. ..B05b 7/10 [58] Field of Search ..239/399, 403, 400

[56] References Cited UNITED STATES PATENTS Zink ..239/4oo x [151 3,682,390 [4s] Aug. 8, 1972 3,231,201 1/1966 Jackson ..239/399 2,815,982 12/1957 Blearnaster ..239/403X Primary Examiner-Allen N. Knowles Assistant Examiner-Thomas C. Culp, Jr. Attomey-Holman & Stern ABSTRACT A liquid atomizing device in which a tubular body is open at both ends and has inclined blades mounted within one end to impart a swirling motion to air passing through the body. Fuel is supplied through passages which open on to the downstream edges of the blades, with the fuel being injected transversely into the swirling airstream.

2Clains,3DrawingFigures LIQUID ATOMIZING DEVICES BACKGROUND OF THE INVENTION This invention relates to a liquid atomizing device intended particularly for use in the burners of gas turbine engines.

SUMMARY OF THE INVENTION A liquid atomizing device in accordance with the invention comprises a tubular body through which air is. caused to flow in use, an air swirler at the downstream end of said body including a plurality of blades inclined to the axis of said body, a plurality of passages being formed in said blades and extending adjacent the respective trailing edges thereof, each such passage communicating with one or more transverse holes in the associated blade, and passage means whereby liquid can be supplied to said passages, with the arrangement being such that in use, liquid supplied to said passages is injected transversely into the swirling air stream through said holes.

BRIEF DESCRIPTION OF THE DRAWINGS An example of the invention isshown in the accompanying drawings in which FIG. 1 is a view of a liquid atomizing device in accordance with the invention, the view being partially in longitudinal section,

FIG. 2 is an end view of the device, also partially in section and FIG. 3 is a developed cross-section on line 3--3 in FIG. 2.

DETAILED DESCRIPTION OF THE DRAWINGS The device shown includes a tubular body comprising an outer sleeve 11 and an inner sleeve 12 between which there is defined an annular passage means 13 communicating with an inlet 14 ina support 15 for the body 10. At the end of the body remote from the support 15 (i.e., the end which will be downstream 10 so that air flowing through the body 10 is given a swirling motion thereby to create a conically expanding air flow pattern immediately downstream of the body.

Each of the blades 17 is formed with a drilling 18 extending adjacent the trailing edge of the associated blade with such drilling communicating at its outer end with the annular passage 13. One or more cross bores 19 is or are formed in each of the blades 17 to communicate with the drilling 18 therein. In the example in use), there is an air swirler 16 comprising a plurality of blades 17 which are inclined to the axis of the body shown, there are three such cross bores in each blade and these open onto the face of the blade which will, in use, be at high pressure, as will be evident from FIG. 3.

Thus, in use, liquid is injected into the swirling air stream through the holes fonned by the cross bores 19. It is intended that such an arrangement will be effective in atomizing the liquid over a wide range of liquid supply pressures and air flow rates through the body 10. Such a characteristic is required in the burners of a gas turbine engine to ensure effective atomization during starting when the fuel pressure is low and the air flow rate through the body 10 will similarly be low.

Having thus described our invention what we claim as ew d, e ir to secureb Lette Patentis;

llAliaur t ue atomizing device or positioning man airstream, comprising a tubular body which is open at both ends and through which air is caused to flow in use, an air swirl at the downstream end of said body including a plurality of blades inclined to the axis of said body, a plurality of passages being formed in said blades and extending adjacent the respective trailing edges thereof, a hole opening onto the face of each blade which is, in use, at high pressure, said passages communicating with said holes, and passage means whereby liquid fuel can be supplied to said passages, the arrangement being such that in use, liquid fuel supplied to said passages is injected transversely into the swirling airstream through said holes, the body comprising an outer sleeve and an inner sleeve which between them define said passage means.

2. The device as claimed in claim 1 in which each said passage communicates at its outer end with the said passage means.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2531316 *Aug 9, 1946Nov 21, 1950Zink John SMultiple fuel burner
US2815982 *Nov 6, 1953Dec 10, 1957Collins MasonApparatus for dispelling fog
US3231201 *Apr 29, 1963Jan 25, 1966Magic Servant Products CompanyBurner assembly
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4276867 *Mar 19, 1979Jul 7, 1981Metzenthin Dieter WFuel atomizing device
US5647200 *Apr 8, 1994Jul 15, 1997Asea Brown Boveri AgHeat generator
US5772422 *Aug 27, 1996Jun 30, 1998Pvi Industries, Inc.Burner array for water heating apparatus
US6227185 *Mar 1, 1999May 8, 2001Edward J. SpracherAir intake conduit fuel metering device
US6363724Aug 31, 2000Apr 2, 2002General Electric CompanyGas only nozzle fuel tip
US6438961Mar 20, 2001Aug 27, 2002General Electric CompanySwozzle based burner tube premixer including inlet air conditioner for low emissions combustion
US6453673Nov 28, 2001Sep 24, 2002General Electric CompanyMethod of cooling gas only nozzle fuel tip
US6460326Nov 28, 2001Oct 8, 2002William Theodore BechtelGas only nozzle
US6655145 *Dec 20, 2001Dec 2, 2003Solar Turbings IncFuel nozzle for a gas turbine engine
US6820424 *Sep 12, 2001Nov 23, 2004Allison Advanced Development CompanyCombustor module
US6834506 *Dec 17, 2002Dec 28, 2004Nuovo Pignone Holding S.P.A.Main liquid fuel injection device for a single combustion chamber, having a premixing chamber, of a gas turbine with low emission of pollutants
US7191959 *Aug 12, 2004Mar 20, 2007Unilever Home & Personal Care Usa Division Of Conopco, Inc.Domestic spray device
US7232080Aug 12, 2004Jun 19, 2007Unilever Home & Personal Care Usa Division Of Conopco, Inc.Nozzle for a spray device
US7334410 *Apr 7, 2004Feb 26, 2008United Technologies CorporationSwirler
US7703288 *Sep 30, 2005Apr 27, 2010Solar Turbines Inc.Fuel nozzle having swirler-integrated radial fuel jet
US20050045745 *Aug 12, 2004Mar 3, 2005Unilever Home & Personal Care Usa, Division Of Conopco, Inc.Domestic spray device
US20050223710 *Apr 7, 2004Oct 13, 2005Creighton Sherman CSwirler
Classifications
U.S. Classification239/399, 261/79.1, 60/748, 60/746
International ClassificationF23D11/10, B05B7/04, B05B7/10
Cooperative ClassificationB05B7/10, B05B7/0433, F23D11/10
European ClassificationF23D11/10, B05B7/04C2, B05B7/10