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1. 发明授权

US11635208B2 Co-axial dual swirler nozzle 有权
公开(公告)号：US11635208B2
公开(公告)日：2023-04-25
申请号：US17235760
申请日：2021-04-20
申请人： DOOSAN ENERBILITY CO., LTD
发明人： Jung Jin Choi
IPC分类号： F23R3/14 , F23R3/28 , F02C3/14 , F23R3/16
摘要： Provided is a combustion nozzle including a center cylinder having a cylinder shape, a middle cylinder coaxially disposed with the center cylinder and surrounding the center cylinder, an outer cylinder coaxially disposed with the middle cylinder and surrounding the middle cylinder, and a perforated plate disposed inside the center cylinder to create turbulent flow therethrough. In addition, the combustion nozzle further includes inner vanes disposed between the center cylinder and the middle cylinder and outer vanes disposed between the middle cylinder and the outer cylinder.

2. 发明申请

US20230034004A1 MIXER VANES 有权
公开(公告)号：US20230034004A1
公开(公告)日：2023-02-02
申请号：US17389022
申请日：2021-07-29
申请人： General Electric Company
发明人： Rimple Rangrej , Saket Singh , Pradeep Naik , Neeraj Mishra
IPC分类号： F23R3/14 , F02C7/22
摘要： A gas turbine combustor includes a main mixer for providing an air flow to mix with a fuel flow in a combustor. The main mixer includes an annular mixer body, a plurality of mixer vanes located circumferentially around the annular mixer body, and a plurality of wedges extending radially outward from each of the plurality of mixer vanes. At least one of the wedges includes serrations. The air flow through the main mixer enters the main mixer at a leading edge of the mixer vane, flows over the plurality of wedges, and exits the mixer vanes at a trailing edge of the main mixer. The wedges create vortices in the air flow to provide a uniform fuel-air flow.

3. 发明授权

US11566789B1 Ferrule for fuel-air mixer assembly 有权
公开(公告)号：US11566789B1
公开(公告)日：2023-01-31
申请号：US17655453
申请日：2022-03-18
申请人： General Electric Company
发明人： Saket Singh , Pradeep Naik , Rimple Rangrej , Ranganatha Narasimha Chiranthan , Veeraraju Vanapalli
IPC分类号： F23R3/28 , F23R3/14
摘要： A ferrule in a fuel-air mixer assembly. The ferrule includes a body having (i) a plurality of channels having sidewalls, the plurality of channels leading to a corresponding plurality of exit openings, the plurality of channels configured to guide a first airflow therein and (ii) a plurality of cascade holes formed within the sidewalls of the plurality of channels and defining a plurality of passageways therein that are transverse to the plurality of channels. The ferrule also includes a plurality of airflow modifiers provided within the plurality of channels. The plurality airflow modifiers are configured to reduce a velocity of the first airflow when the first airflow exits through the plurality of exit openings and to generate low velocity vortex pairs to reduce interaction of the first airflow with a second airflow provided through primary vanes located downstream of the plurality of exit openings of the plurality of channels.

4. 发明授权

US11525579B2 Combustor nozzle, combustor, and gas turbine including same 有权
公开(公告)号：US11525579B2
公开(公告)日：2022-12-13
申请号：US17356555
申请日：2021-06-24
申请人： DOOSAN ENERBILITY CO., LTD
发明人： Borys Shershnyov , Mu Hwan Chon
IPC分类号： F23R3/28 , F23R3/14 , F23D14/70 , F23D14/64
摘要： A combustor nozzle capable of injecting fuel uniformly, a combustor including the combustor nozzle, and a gas turbine including the combustor are provided. The combustor nozzle includes a premix passage in which air and fuel are mixed, wherein the premix passage includes a plurality of pegs configured to inject fuel and guide an air flow and a plurality of mixing bars configured to mix air and fuel injected from the plurality of pegs, the mixing bar having a twisted structure.

5. 发明授权

US11506384B2 Free-vortex combustor 有权
公开(公告)号：US11506384B2
公开(公告)日：2022-11-22
申请号：US17481792
申请日：2021-09-22
申请人： DYC Turbines, LLC
发明人： Daih-Yeou Chen
IPC分类号： F23R3/14 , F23R3/28
摘要： A free-vortex combustor is disclosed that generates vortices which: enhance fuel air mixing, recirculate the air, provide cooling for the combustor walls, and provide low emissions and a substantially uniform exit temperature profile. The combustor is provided fuel or fuel and air through a fuel-injector which atomizes the fuel. A first air swirler couples to the fuel-injector with a prechamber wall abutting the first swirler. A second swirler abuts a downstream end of the prechamber wall. And, a main chamber abuts the second swirler. Each of the first and second swirlers have features that cause the flow to create a vortex in the prechamber and main chamber, respectively. The features creating the swirl are blades or angled orifices. The vortex causes a pressure depression along the centerline and causes backflow along the centerline that improves mixing and improves cooling.

6. 发明申请

US20220333779A1 COMBUSTOR SWIRL VANE APPARATUS 有权
公开(公告)号：US20220333779A1
公开(公告)日：2022-10-20
申请号：US17232638
申请日：2021-04-16
申请人： General Electric Company
发明人： Steven Clayton Vise , Clayton Stuart Cooper , Allen M. Danis
IPC分类号： F23R3/14 , F23D14/62 , F23R3/28
摘要： A swirler apparatus for a combustor, including: primary and secondary swirlers disposed axially adjacent to each other along a swirler centerline; the primary swirler including a plurality of primary swirl vanes arrayed around the swirler centerline; and the secondary swirler including a plurality of secondary swirl vanes arrayed around the swirler centerline, each secondary swirl vane including opposed sides bounded between opposed forward and aft edges and opposed leading and trailing edges; wherein the forward edge is oriented at a first vane angle with respect to a radial direction; wherein the aft edge is oriented at a second vane angle with respect to the radial direction; and wherein the second vane angle is different from the first vane angle.

7. 发明申请

US20220282868A1 THERMAL RESISTANT AIR CAP 有权
公开(公告)号：US20220282868A1
公开(公告)日：2022-09-08
申请号：US17825381
申请日：2022-05-26
申请人： Delavan Inc.
发明人： Steve J. Myers
IPC分类号： F23R3/14 , F02C7/22 , F02C7/236 , F23R3/28
摘要： An air cap is configured to be affixed to a nozzle assembly as a downstream facing component of the nozzle assembly. The air cap includes a plurality of air wipe passages with outlets defined in a circumferential direction around a downstream facing surface of the air cap. A nozzle assembly can include an outer wall wherein the air cap is connected to the nozzle assembly outboard of the outer wall. An inner wall can be connected to the outer wall by a plurality of air swirl vanes. One or more fuel circuit components can be connected to the nozzle assembly inboard of the inner wall.

8. 发明授权

US11428412B2 Fuel spray nozzle having an aerofoil integral with a feed arm 有权
公开(公告)号：US11428412B2
公开(公告)日：2022-08-30
申请号：US16878927
申请日：2020-05-20
申请人： ROLLS-ROYCE plc
发明人： Luca Tentorio , Juan Carlos Roman Casado , Giacomo Di Chiaro , Jonathan Knapton , Filippo Zambon , Radu Irimia
IPC分类号： F23R3/28 , F23R3/14
摘要： A fuel spray nozzle arrangement for a combustor, the fuel spray nozzle arrangement comprising a fuel spray nozzle connected to a feed arm, wherein the feed arm comprises an aerofoil.

9. 发明授权

US11421884B2 System for aerodynamically enhanced premixer for reduced emissions 有权
公开(公告)号：US11421884B2
公开(公告)日：2022-08-23
申请号：US17231750
申请日：2021-04-15
申请人： General Electric Company
发明人： Nayan Vinodbhai Patel , Duane Douglas Thomsen , Michael A. Benjamin
IPC分类号： F23R3/28 , F23R3/14
摘要： A System for Aerodynamic Premixer for Reduced Emissions comprising a premixer is generally cylindrical in form and defined by the relationship in physical space between a first ring, a second ring, and a plurality of radial vanes. The first and second rings are found to be generally equidistant, one from the other, at all points along their facing surfaces. Radial vanes connect the first ring to the second ring and thereby form the premixer.

10. 发明授权

US11421601B2 Second stage combustion for igniter 有权
公开(公告)号：US11421601B2
公开(公告)日：2022-08-23
申请号：US16831390
申请日：2020-03-26
申请人： Woodward, Inc.
发明人： Bidhan Dam , Logan Oonk , Dan Huber , Vinay Prasad , Sudipa Sarker
IPC分类号： F23R3/34 , F02C7/264 , F23R3/14 , F23R3/28
摘要： The subject matter of this specification can be embodied in, among other things, a turbine combustor assembly includes a primary combustion chamber in fluid communication with a primary fuel injector and a primary air inlet, and an igniter carried by the primary combustion chamber and including a first igniter stage having an auxiliary combustion chamber housing comprising a mixing chamber and a tubular throat converging downstream of the mixing chamber, an ignition source projecting into the mixing chamber of the auxiliary combustion chamber, and a second igniter stage that includes an auxiliary fuel outlet manifold proximal to an outlet of the tubular throat.

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