AIRFOIL HAVING FORWARD FLOWING SERPENTINE FLOW

    公开(公告)号:US20190048729A1

    公开(公告)日:2019-02-14

    申请号:US15671351

    申请日:2017-08-08

    Abstract: Airfoils including an airfoil body having leading and trailing edges and root and tip regions, wherein an aftward direction is from the leading edge toward the trailing edge and a radially outward direction is from the root region to the tip region, a forward-flowing serpentine flow path within the airfoil body defined by a first serpentine cavity, a second serpentine cavity, and a third serpentine cavity, wherein the first serpentine cavity is aftward of the second serpentine cavity, and the second serpentine cavity is aftward of the third serpentine cavity, a flag tip cavity extending aftward from proximate the leading edge to the trailing edge along the tip region, and a hybrid trailing edge cavity, wherein the first serpentine cavity is part of the hybrid trailing edge cavity and cooling air is supplied into the forward-flowing serpentine flow path from a hybrid trailing edge feed cavity inlet.

    AIRFOIL HAVING SERPENTINE CORE RESUPPLY FLOW CONTROL

    公开(公告)号:US20190024514A1

    公开(公告)日:2019-01-24

    申请号:US15656020

    申请日:2017-07-21

    Abstract: Airfoils and airfoil cores for airfoils of gas turbine engines are provided. The airfoils include an airfoil body having a leading edge and a trailing edge, at least two serpentine flow cavities formed within the airfoil body, a resupply cavity fluidly connected to one serpentine flow cavity of the at least two serpentine flow cavities and arranged to supply a resupply air to the one serpentine flow cavity through a resupply bypass hole, a junction defined at a location where the resupply cavity fluidly connect to the one serpentine flow cavity, a separator rib within the airfoil body and fluidly separating part of the at least two serpentine flow cavities, at least one crossover rib located between the resupply bypass hole and the separator rib, and at least one crossover aperture located between the at least one crossover rib and the separator rib.

    LEADING EDGE HYBRID CAVITIES AND CORES FOR AIRFOILS OF GAS TURBINE ENGINE

    公开(公告)号:US20180320525A1

    公开(公告)日:2018-11-08

    申请号:US15584119

    申请日:2017-05-02

    Abstract: Airfoils having a leading edge, a trailing edge, a first end, and a second end with a leading edge hybrid skin core cavity formed within the airfoil extending from the first end to the second end proximate the leading edge, the cavity having a hot wall and a cold wall. The cavity has a variable height-to-width ratio in a direction from the first end to the second end, with a first aspect ratio proximate the first end and a second aspect ratio proximate the second end with the height defined as a maximum distance between the hot wall and the cold wall and the width is defined as an arc length of the cold wall.

    AFT FLOWING SERPENTINE CAVITIES AND CORES FOR AIRFOILS OF GAS TURBINE ENGINES

    公开(公告)号:US20180156045A1

    公开(公告)日:2018-06-07

    申请号:US15368746

    申请日:2016-12-05

    Abstract: Core assemblies for manufacturing airfoils and airfoils made therefrom having an aft flowing serpentine hybrid skin core positioned relative to a plurality of core bodies and configured to define at least one serpentine cavity within the manufactured airfoil. The aft flowing serpentine hybrid skin core extends from a root region toward a tip region in a radial direction of the manufactured airfoil and the plurality of core bodies are positioned about the aft flowing serpentine hybrid skin core to form a shielding structure to thermally shield the aft flowing serpentine hybrid skin core in the manufactured airfoil.

    LEADING EDGE HYBRID CAVITIES AND CORES FOR AIRFOILS OF GAS TURBINE ENGINE

    公开(公告)号:US20180156043A1

    公开(公告)日:2018-06-07

    申请号:US15368737

    申请日:2016-12-05

    Abstract: Core assemblies for manufacturing airfoils and airfoils made therefrom, the core assemblies having a leading edge hybrid skin core positioned relative to a plurality of core bodies and configured to define a leading edge cavity at a leading edge of the manufactured airfoil. The leading edge hybrid skin core extends from a root region toward a tip region in a radial direction, the leading edge hybrid skin core extends above at least one of the plurality of core bodies to define an exit in a tip region of the manufactured airfoil, and the leading edge hybrid skin core has a height-to-width ratio of about 0.8 or less.

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