- Patent Title: Air swirler arrangement for a fuel injector of a combustion chamber
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Application No.: US16254705Application Date: 2019-01-23
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Publication No.: US11085643B2Publication Date: 2021-08-10
- Inventor: Richard Freeman , Christopher Rafferty , Thomas Jones , Matthew Murphy , Nicholas M. Brown
- Applicant: ROLLS-ROYCE plc
- Applicant Address: GB London
- Assignee: ROLLS-ROYCE plc
- Current Assignee: ROLLS-ROYCE plc
- Current Assignee Address: GB London
- Agency: Shumaker & Sieffert, P.A.
- Priority: GB1802251 20180212
- Main IPC: F23R3/14
- IPC: F23R3/14 ; F23R3/28 ; F23D14/00 ; F23R3/10 ; F23D11/00 ; F23D11/38 ; F23C7/00 ; F23M5/08 ; B33Y10/00 ; B33Y80/00 ; B29C64/153 ; B01F5/00 ; B01F15/00 ; F23R3/46

Abstract:
An air swirler arrangement comprises a coaxial arrangement of an inner and an outer air swirler passage. Each air swirler passage comprises a radial flow swirler. Air swirler arrangement comprises a coaxial arrangement of first, second and third members. Second member has radially extending upstream portion spaced axially from first member and a convergent portion. Third member has a radially extending upstream portion spaced axially from the upstream portion of second member and a radially inner surface having convergent and divergent downstream portions and a radially outer surface having a divergent downstream portion. First, second and third members the vanes of the radial flow swirlers is a monolithic structure. Plurality of circumferentially spaced passages are provided within the third member and each passage has an inlet in the surface and an outlet arranged to direct fluid onto the divergent portion of the surface or the surface of the third member.
Public/Granted literature
- US20190249876A1 AIR SWIRLER ARRANGEMENT FOR A FUEL INJECTOR OF A COMBUSTION CHAMBER Public/Granted day:2019-08-15
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