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公开(公告)号：US10967394B2
公开(公告)日：2021-04-06
申请号：US16178046
申请日：2018-11-01
Applicant: Rolls-Royce Corporation , Rolls-Royce plc
Inventor： Neal Thomson , Christopher Walters
Abstract: A fluid atomizer and methods of atomizing fluids are disclosed. The fluid atomizer may comprise an inner member and one or more outer members. The inner member defines an interior conduit for providing a first-fluid flowpath from a supply end of the atomizer to a discharge end of the atomizer along a central axis. The one or more outer members are positioned radially outward of the inner member from the central axis. The inner and outer members define a second-fluid flowpath extending from a second-fluid supply conduit to a second-fluid discharge plenum. The second-fluid flowpath comprises a tangential conduit spiraling along the axis from the second-fluid supply conduit to a terminal end; an annulus downstream from and in fluid communication with the tangential conduit; and a second-fluid discharge plenum downstream from and in fluid communication with the annulus.
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公开(公告)号：US10077714B2
公开(公告)日：2018-09-18
申请号：US14935004
申请日：2015-11-06
Applicant: Rolls-Royce plc
Inventor： Randall D. Siders , Peter J. Schnoebelen , Brandon P. Williams , Neal Thomson , Philip E. O. Buelow , David H. Bretz
CPC classification number: F02C7/22 , B23K33/006 , F23R3/14 , F23R3/28 , F23R3/343
Abstract: A fuel injector for a lean direct injection fuel nozzle has a pilot air swirler which sits radially outboard of a pilot fuel swirler radially outer wall. The air swirler is bounded on its radially outer side by joined wall portions. One wall portion extends axially and another wall portion converges radially. On the radially inwardly facing surface, the wall portions meet to provide a continuing wall surface of the air swirler which transitions from axial extension to radial convergence over a smooth radius. The curvature of this surface broadly mirrors the radially outwardly facing profile of the pilot fuel swirler radially outer wall. The axially extending wall portion is extended axially to form a first part of a join interface. The radially converging portion is extended in a radial direction to provide a second part of the join interface.
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Patent Agency Ranking
公开(公告)号：US11919028B2
公开(公告)日：2024-03-05
申请号：US17204519
申请日：2021-03-17
Applicant: Rolls-Royce Corporation , Rolls-Royce plc
Inventor： Neal Thomson , Christopher Walters
CPC classification number: B05B7/2489 , B05B1/3431 , F02M61/162
Abstract: A fluid atomizer and methods of atomizing fluids are disclosed. The fluid atomizer may comprise an inner member and one or more outer members. The inner member defines an interior conduit for providing a first-fluid flowpath from a supply end of the atomizer to a discharge end of the atomizer along a central axis. The one or more outer members are positioned radially outward of the inner member from the central axis. The inner and outer members define a second-fluid flowpath extending from a second-fluid supply conduit to a second-fluid discharge plenum. The second-fluid flowpath comprises a tangential conduit spiraling along the axis from the second-fluid supply conduit to a terminal end; an annulus downstream from and in fluid communication with the tangential conduit; and a second-fluid discharge plenum downstream from and in fluid communication with the annulus.
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公开(公告)号：US10317084B2
公开(公告)日：2019-06-11
申请号：US14948986
申请日：2015-11-23
Applicant: Rolls-Royce plc
Inventor： Randall D. Siders , Matthew Donovan , Neal Thomson , David H. Bretz
Abstract: An air swirler has a radially outer wall bounding an annular passage. The radially outer wall has an axially extending portion and a radially convergent portion which converges towards an outlet of the passage. Downstream of the outlet, the passage facing surface of the radially outer wall becomes divergent. The region in which the passage facing surface of the radially outer wall is convergent then divergent defines the flare. A circumferential and axially extending recess is provided in the radially outer wall opposite the flare. A reinforcement of material with superior wear properties to the material of the main body is built in the recess to a radius which coincides with that of the outer surface of the axially extending portion of the radially outer wall. The reinforcement can conveniently be added to the main body by means of a laser consolidation ALM process.
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公开(公告)号：US20170130652A1
公开(公告)日：2017-05-11
申请号：US14935004
申请日：2015-11-06
Applicant: Rolls-Royce plc
Inventor： Randall D. Siders , Peter J. Schnoebelen , Brandon P. Williams , Neal Thomson , Philip E.O. Buelow , David H. Bretz
IPC: F02C7/22
CPC classification number: F02C7/22 , B23K33/006 , F23R3/14 , F23R3/28 , F23R3/343
Abstract: A fuel injector for a lean direct injection fuel nozzle has a pilot air swirler which sits radially outboard of a pilot fuel swirler radially outer wall. The air swirler is bounded on its radially outer side by joined wall portions. One wall portion extends axially and another wall portion converges radially. On the radially inwardly facing surface, the wall portions meet to provide a continuing wall surface of the air swirler which transitions from axial extension to radial convergence over a smooth radius. The curvature of this surface broadly mirrors the radially outwardly facing profile of the pilot fuel swirler radially outer wall. The axially extending wall portion is extended axially to form a first part of a join interface. The radially converging portion is extended in a radial direction to provide a second part of the join interface.
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公开(公告)号：US20210197218A1
公开(公告)日：2021-07-01
申请号：US17204519
申请日：2021-03-17
Applicant: Rolls-Royce Corporation , Rolls-Royce plc
Inventor： Neal Thomson , Christopher Walters
Abstract: A fluid atomizer and methods of atomizing fluids are disclosed. The fluid atomizer may comprise an inner member and one or more outer members. The inner member defines an interior conduit for providing a first-fluid flowpath from a supply end of the atomizer to a discharge end of the atomizer along a central axis. The one or more outer members are positioned radially outward of the inner member from the central axis. The inner and outer members define a second-fluid flowpath extending from a second-fluid supply conduit to a second-fluid discharge plenum. The second-fluid flowpath comprises a tangential conduit spiraling along the axis from the second-fluid supply conduit to a terminal end; an annulus downstream from and in fluid communication with the tangential conduit; and a second-fluid discharge plenum downstream from and in fluid communication with the annulus.
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公开(公告)号：US20170146243A1
公开(公告)日：2017-05-25
申请号：US14948986
申请日：2015-11-23
Applicant: Rolls-Royce plc
Inventor： Randall D. Siders , Matthew Donovan , Neal Thomson , David H. Bretz
CPC classification number: F23R3/286 , F02C3/04 , F23D2900/00018 , F23R3/14 , F23R3/28 , F23R3/343 , F23R2900/00018
Abstract: An air swirler has a radially outer wall bounding an annular passage. The radially outer wall has an axially extending portion and a radially convergent portion which converges towards an outlet of the passage. Downstream of the outlet, the passage facing surface of the radially outer wall becomes divergent. The region in which the passage facing surface of the radially outer wall is convergent then divergent defines the flare. A circumferential and axially extending recess is provided in the radially outer wall opposite the flare. A reinforcement of material with superior wear properties to the material of the main body is built in the recess to a radius which coincides with that of the outer surface of the axially extending portion of the radially outer wall. The reinforcement can conveniently be added to the main body by means of a laser consolidation ALM process.
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