Heat shielding for internal fuel manifolds

    公开(公告)号:US11255270B2

    公开(公告)日:2022-02-22

    申请号:US16224127

    申请日:2018-12-18

    Applicant: Delavan Inc.

    Abstract: A fuel injector system includes an outer support and an inner support, with a feed arm extending radially between the inner support and the outer support. A plurality of outlet openings extend in an axial direction from the feed arm for feeding respective injection nozzles. The outer support and feed arm define a plurality of fuel passages therethrough to convey fluid from an external source through the outer support and feed arm to the outlet openings. A heat shield extends around the feed arm from the outer support to the inner support. The heat shield is spaced apart from the feed arm with an insulative gap therebetween.

    COMBUSTOR WITH AN AIR MIXER AND AN AIR SWIRLER EACH HAVING SLOTS

    公开(公告)号:US20210404661A1

    公开(公告)日:2021-12-30

    申请号:US17458240

    申请日:2021-08-26

    Applicant: Delavan Inc.

    Abstract: An air mixer includes an annular body defining a center axis. A plurality of slots are defined in the annular body circumferentially spaced apart from one another. Each slot defines a respective center injection axis extending from an outer surface of the annular body to an inner surface of the annular body. Each respective center injection axis is parallel to a respective plane bisecting the annular body. At least one of the slots is intersected by the respective bisecting plane parallel to its respective center injection axis.

    HEAT TRANSFER ARRANGEMENTS AND METHODS OF MAKING HEAT TRANSFER ARRANGEMENTS

    公开(公告)号:US20210325044A1

    公开(公告)日:2021-10-21

    申请号:US17357906

    申请日:2021-06-24

    Applicant: Delavan Inc.

    Abstract: A heat transfer arrangement includes two or more heat transfer cells. The heat transfer cells together define a boundary between a higher temperature region and a lower temperature region. Each of the two or more heat transfer cells includes two or more walls defining a fluid tight cavity. One or more wick is fused to an inner surface of one or more of the walls to wick liquid from a lower temperature portion of the cavity to a higher temperature portion of the cavity. Combustors having heat transfer arrangements with heat transfer cells and methods of making heat transfer arrangements are also described.

    Fuel injectors for turbomachines
    24.
    发明授权

    公开(公告)号:US11131458B2

    公开(公告)日:2021-09-28

    申请号:US15949779

    申请日:2018-04-10

    Applicant: Delavan, Inc.

    Abstract: A fuel injector for a multipoint injection system can include a body defining an air cavity for allowing air to flow therethrough and an interior cavity. A fuel is tube disposed at least partially within the interior cavity of the body. The fuel tube can include a first end configured to connect to a fuel injector connector of a fuel manifold, and a second end configured to connect to a fuel distributor of the fuel injector, wherein the fuel injector is configured to be disposed at least partially in a combustor dome. The fuel tube is configured to move in an axial direction to allow flexibility between the fuel manifold and the combustor dome.

    FUEL INJECTOR SYSTEMS AND SUPPORT STRUCTURES

    公开(公告)号:US20210231056A1

    公开(公告)日:2021-07-29

    申请号:US17229346

    申请日:2021-04-13

    Applicant: Delavan Inc.

    Abstract: A turbomachine fuel injector system includes an air distributor configured to be mounted to and contained within a casing and to provide air to mix with a fuel from one or more fuel distribution systems. The system includes a fuel manifold configured to be mounted indirectly to the casing such that the fuel manifold system is contained within the casing but is independent such that fuel manifold does not touch or directly mount to either an interior of the casing or touch the air distributor within the casing to prevent or reduce thermal transfer from the air distributor to the fuel manifold.

    Electronic fuel control for gas turbine engines

    公开(公告)号:US11053862B2

    公开(公告)日:2021-07-06

    申请号:US15714597

    申请日:2017-09-25

    Applicant: Delavan Inc.

    Abstract: A fuel injector for a gas turbine engine includes a feed arm defining a conduit extending between an inlet end and an outlet end and a plunger. The plunger is disposed within the conduit and is movable between a plunger first position and a plunger second position. A flow area defined between the plunger and the feed arm is smaller in the plunger first position than in the plunger second position to bias fuel flow through the fuel injector. Fuel systems, gas turbine engines, and methods of controlling fuel flow in gas turbine engine fuel systems are also described.

    Fuel injector assemblies
    28.
    发明授权

    公开(公告)号:US10830446B2

    公开(公告)日:2020-11-10

    申请号:US15844216

    申请日:2017-12-15

    Applicant: Delavan, Inc.

    Abstract: A method for assembling a fuel distribution system for a turbomachine fuel injector includes inserting a liquid fuel distributor into an interior cavity of a shroud to create a liquid fuel distribution circuit between the liquid fuel distributor and the shroud and inserting a gas fuel distributor into the interior cavity of the shroud and into an interior cavity of the liquid fuel distributor to create a gas fuel distribution circuit between the gas fuel distributor and the liquid fuel distributor. The method includes inserting a fuel transfer tube into an outer diameter of the shroud. The method includes brazing or shrink fitting at least one of the fuel transfer tube, the gas fuel distributor, or the liquid fuel distributor to the shroud.

    Fuel nozzles
    29.
    发明授权

    公开(公告)号:US10731859B2

    公开(公告)日:2020-08-04

    申请号:US15656815

    申请日:2017-07-21

    Applicant: Delavan Inc.

    Abstract: A nozzle assembly includes a fuel distributor for issuing a spray of fuel. A fuel conduit is in fluid communication with the fuel distributor and has a first end and a second end. The first end and/or the second end of the fuel conduit is operatively connected to the fuel distributor. The fuel conduit is configured to allow relative movement between the first end and the second end to accommodate dimensional variations of at least one of the nozzle assembly or a combustor. A nozzle system includes the nozzle assembly and a combustor wall having a nozzle inlet. The nozzle assembly is positioned adjacent to the nozzle inlet.

    MULTIPLE CIRCUIT MANIFOLDS
    30.
    发明申请

    公开(公告)号:US20190093560A1

    公开(公告)日:2019-03-28

    申请号:US15714265

    申请日:2017-09-25

    Applicant: Delavan Inc.

    Abstract: A fluid manifold includes a manifold body, a first annular passage and a second annular passage. The first annular passage is defined within the manifold body between a first passage inlet and a first passage outlet downstream from the first passage inlet. The second annular passage is defined within the manifold body nested radially outward from the first annular passage, and between a second passage inlet and a second passage outlet downstream from the second passage inlet. The first and second annular passages are concentric about a manifold axis. The first passage outlet and the second passage outlet are positioned at the same axial position relative to the manifold axis.

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