Abstract:
An airfoil (200) is provided. The airfoil (200) may comprise a cross over (232), an impingement chamber (230) in fluid communication with the cross over (232), and a first trip strip (236; 260...270) disposed on a first surface (237) of the impingement chamber (230). A cooling system is also provided. The cooling system may comprise an impingement chamber (230), a first trip strip (236; 260...270) on a first surface (237) of the impingement chamber (230), and a second trip strip (238; 280...290) on a second surface (239) of the impingement chamber (230). An internally cooled engine part is further provided. The internally cooled part may comprise a cross over (232) and an impingement chamber (230) in fluid communication with the cross over (232). The cross over (232) may be configured to direct air towards a first surface (237) of the impingement chamber (230). A first trip strip (236; 260...270) may be disposed on the first surface (237) of the impingement chamber (230).
Abstract:
An engine component assembly includes at least one cavity that is in communication with a source of cooling air. An insert disposed within the cavity includes a plurality of scoops protruding into a flow of cooling air for directing cooling air through the insert and against an inner surface of the cavity.
Abstract:
An airfoil (78) for a gas turbine engine includes an airfoil with pressure and suction sides (94,96) that are joined at leading and trailing edges (82,84). The airfoil (78) extends a span from a support (76) to an end (80) in a radial direction. 0% span and 100% span positions respectively correspond to the airfoil (78) at the support (76) and at the end (80). The leading and trailing edges (82,84) are spaced apart from one another an axial chord (b x ) in an axial direction (X). A cross-section of the airfoil (78) at a span location has a diameter (d max ) tangent to the pressure and suction sides. The diameter (d max ) corresponds to the largest circle fitting within the cross-section. A ratio of the diameter (d max to the axial chord (b x ) is at least 0.4 between 50% and 95% span location.
Abstract:
A gas turbine engine includes a wall having first and second wall surfaces and a cooling hole extending through the wall. The cooling hole includes an inlet located at the first wall surface, an outlet located at the second wall surface, a metering section extending downstream from the inlet and a diffusing section extending from the metering section to the outlet. The diffusing section includes a first lobe diverging longitudinally and laterally from the metering section, a second lobe diverging longitudinally and laterally from the metering section, an upstream end located at the outlet, a trailing edge located at the outlet opposite the upstream end and generally opposite first and second sidewalls. Each sidewall has an edge extending along the outlet between the upstream end and the trailing edge. Each edge diverges laterally from the upstream end and converges laterally before reaching the trailing edge.
Abstract:
A gas turbine engine component includes first and second wall surfaces, an inlet located at the first wall surface, an outlet located at the second wall surface and a diffusing section positioned between the inlet and the outlet. The diffusing section includes a first lobe, a second lobe adjacent the first lobe and a third lobe adjacent the second lobe. The first lobe and the second lobe meet at a first ridge and the second lobe and the third lobe meet at a second ridge.
Abstract:
A component for a gas turbine engine includes a wall and a cooling hole extending through the wall. The wall has a first surface and a second surface. The cooling hole includes a metering section extending downstream from an inlet in the first surface of the wall and a diffusion section extending from the metering section to an outlet in the second surface of the wall. The diffusion section includes a first plurality of lobes diverging longitudinally and laterally from the metering section on a first side of a centerline axis of the cooling hole and a second plurality of lobes diverging longitudinally and laterally from the metering section on a second side of the centerline axis.
Abstract:
Airfoils and gas turbine engines having the same, the airfoils including an airfoil body having a leading edge and a trailing edge extending in a radial direction, a cooling cavity (318) defined within the airfoil body, wherein at least one wall of the cooling cavity is a curved end wall (328), and an end wall contoured pedestal (352) positioned adjacent the curved end wall. The end wall contoured pedestal has a first portion (356) with a contoured side wall (360) and a parallel side wall (358), and a second portion (362) with tapering side walls, wherein the contoured side wall faces the curved end wall, the contoured side wall paralleling a contour of the curved end wall and defining a meter section (354) therebetween.