Fillet optimization for turbine airfoil

    公开(公告)号:US10227876B2

    公开(公告)日:2019-03-12

    申请号:US14960991

    申请日:2015-12-07

    Abstract: A blade for a gas turbine engine comprises an airfoil having a pressure side and a suction side, with a root and a tip wall. The pressure side and suction side extend beyond the tip wall to define a tip channel, defining a plurality of internal and external corners. The corners comprise fillets to define a thickness being greater than the thickness for the pressure, suction, or tip walls. A film hole can extend through the fillet, such that the length of the film hole at the fillet can be increased to define an increased length-to-diameter ratio for the film hole to improve film cooling through the film hole.

    Riblets For A Flowpath Surface Of A Turbomachine

    公开(公告)号:US20170234134A1

    公开(公告)日:2017-08-17

    申请号:US15042635

    申请日:2016-02-12

    Abstract: A component stage for a turbomachine includes a component section. The component section includes a flowpath surface at least partially exposed to a core air flowpath defined by the turbomachine, when the component stage is installed in the turbomachine. The component further includes a plurality of sequentially arranged riblets on the flowpath surface, the plurality of sequentially arranged riblets customized for an anticipated location of the flowpath surface within the turbomachine by defining one or both of a non-uniform geometry or a non-uniform spacing.

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