Invention Grant
US09410702B2 Gas turbine engine combustors with effusion and impingement cooling and methods for manufacturing the same using additive manufacturing techniques 有权
具有渗出和冲击冷却的燃气涡轮发动机燃烧器及其制造方法使用添加剂制造技术

Gas turbine engine combustors with effusion and impingement cooling and methods for manufacturing the same using additive manufacturing techniques
Abstract:
Disclosed in various exemplary embodiments are turbine engine combustors with effusion and impingement cooling and methods for manufacturing the same. In one exemplary embodiment, disclosed is a combustor for a turbine engine that includes an annular liner portion including a first metering hole positioned on a cold side annular surface of the annular liner portion and an impingement chamber positioned in the annular liner. The impingement chamber connects to an entry hole on the cold side annular surface and includes a cooling air outlet passageway that is angled with respect to a hot side annular surface of the annular liner portion and that connects to an exit hole positioned on the hot side annular surface of the annular liner portion. The first metering hole is connected to the impingement chamber. The cooling air outlet passageway directs the air onto the hot side annular surface and spreads the airflow axially and laterally parallel to the hot side annular surface. Furthermore, a ratio of a radial thickness of the annular liner portion to a diameter of the entry hole is from about 2 to about 6.
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