14-12-2017 дата публикации
Номер: US20170356295A1
A turbine component includes an internal surface, an external surface and a cooling hole. The cooling hole includes an inlet disposed on the internal surface, an outlet disposed on the external surface and a flow passage in fluid communication between the inlet and outlet. The flow passage includes a metering section extending from the inlet to a metering end, a diffusion zone extending from the metering end to the outlet, and a hooded region defined by a portion of the diffusion zone covered by a hood. The cooling hole also includes a vane extending across the flow passage, wherein a portion of the vane is disposed within the hooded region. 1. A turbine component comprising:an internal surface;an external surface; and an inlet disposed on the internal surface,', 'an outlet disposed on the external surface,', a metering section extending from the inlet to a metering end,', 'a diffusion zone extending from the metering end to the outlet, and', 'a hooded region defined by a portion of the diffusion zone covered by a hood, and, 'a flow passage in fluid communication between the inlet and outlet, the flow passage including, 'a vane extending across the flow passage, a portion of the vane disposed within the hooded region., 'a cooling hole including2. The turbine component of wherein the cooling hole comprises:a central axis extending from inlet to outlet;an upstream wall;a downstream wall disposed downstream of the upstream wall relative to a flow of mainstream gas to which the external surface is exposed;first and second opposing sidewalls interconnecting the upstream and downstream walls to define the flow passage; andthe vane extending longitudinally relative to the central axis and laterally from one of the first sidewall to the second sidewall and the upstream wall to the downstream wall.3. The turbine component of wherein the cooling hole comprises:a central axis extending from inlet to outlet;an exit plane intersecting a distal end of the hood and oriented ...
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