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    • 8. 发明专利
    • Combustor for gas turbine engine and gas turbine engine
    • 燃气轮机发动机和燃气轮机发动机
    • JP2012211749A
    • 2012-11-01
    • JP2011078486
    • 2011-03-31
    • Ihi Corp株式会社Ihi
    • NAKAMATA CHIYUKIOKITA YOJIHOSOI JUNHIROMITSU EICHOHIRATA ATSUSHIIDETA TAKEOMI
    • F23R3/06F02C7/18
    • F23R3/002F23R3/06F23R2900/03041F23R2900/03044F23R2900/03045Y02T50/675
    • PROBLEM TO BE SOLVED: To improve cooling performance of a combustor liner 19 to a higher level while promoting weight-reduction of a combustor 9 for a gas turbine engine.SOLUTION: A plurality of impingement-cooling holes 39 is formed passing through an external wall 35 of a liner to be capable of blowing a cooling air CA towards the outer surface of an interior wall 37 of the liner; a plurality of heat transfer pins 43 is formed on the outer circumferential surface of the interior wall 37 of the liner; a plurality of heat transfer pins 43 is formed on the outer surface of the interior wall 37 of the liner; a plurality of effusion cooling holes 41 is formed passing through the interior wall 37 of the liner to be capable of blowing the cooling air CA along the inner surface of the interior wall 37 of the liner. The apical surface of each heat transfer pin 43 is not in contact with the inner surface of the external wall 35 of the liner, and the ratio (H/D) of the height dimension H of the heat transfer pin 43 to the equivalent diameter D of the impingement-cooling hole 39 is set to be 1.0-3.0.
    • 要解决的问题:为了将燃烧器衬套19的冷却性能提高到更高的水平,同时促进用于燃气涡轮发动机的燃烧器9的重量减轻。 解决方案:多个冲击冷却孔39形成为穿过衬套的外壁35,以能够向衬套的内壁37的外表面吹送冷却空气CA; 在衬套的内壁37的外周面上形成有多个传热销43, 多个传热销43形成在衬套的内壁37的外表面上; 通过衬套的内壁37形成多个排气冷却孔41,以能够沿着衬套的内壁37的内表面吹送冷却空气CA。 每个传热销43的顶面不与衬套的外壁35的内表面接触,并且传热销43的高度尺寸H与当量直径D之比(H / D) 的冲击冷却孔39设定为1.0〜3.0。 版权所有(C)2013,JPO&INPIT