[특허]Film cooled wall

Film cooled wall 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F01D-005/18 F02G-003/00
출원번호	US-0012493 (1993-01-25)
발명자 / 주소	Lee Ching-Pang (Cincinnati OH)
출원인 / 주소	General Electric Company (Cincinnati OH 02)
인용정보	피인용 횟수 : 66 인용 특허 : 0

초록 ▼

A wall adapted for use in a gas turbine engine between a first and a hotter second fluid includes a first side over which is flowable the first fluid, and an opposite second side over which is flowable the second fluid. An elongate notch includes a forward surface extending inwardly from the second side and is disposed in flow communication with a plurality of longitudinally spaced apart holes extending inwardly from the first side. The notch also includes an aft surface extending from the forward surface to the wall second side which is inclined at an acute discharge angle relative to the second side. The holes are disposed at an acute discharge angle relative to the second side for discharging the first fluid into the notch, and the notch discharge angle is smaller than the hole discharge angle for discharging the first fluid from the notch along the second side.

대표청구항 ▼

A wall adaptable for use in a gas turbine engine between a first fluid and a second fluid being hotter than said first fluid, comprising: a first side over which is flowable said first fluid: an opposite second side spaced from said first side along a transverse axis and over which is flowable said second fluid in a downstream direction along an axial axis disposed perpendicularly to said transverse axis; an elongate notch extending partly inwardly along said transverse axis from said second side toward said first side and longitudinally along a longitudinal axis disposed perpendicularly to both said transverse axis and said axial axis, said notch being defined by a forward surface extending transversely from said second side at a notch leading edge toward said first side, and by an aft surface extending axially downstream from a notch joining edge with said forward surface to said second side at a notch trailing edge, said notch aft surface being inclined at an acute notch discharge angle relative to said second side at said notch trailing edge; a plurality of longitudinally spaced apart holes extending inwardly to said first side from said notch forward surface in flow communication with said notch for channeling thereto said first fluid; and said holes being inclined at an acute hole discharge angle relative to said second side for discharging said first fluid into said notch along said notch aft surface, and from said notch trailing edge along said second side into said second fluid for film cooling said wall second side, with said notch discharge angle being less than said hole discharge angle; wherein said first and second sides are generally parallel to each other, and said notch forward surface extends substantially perpendicularly to said second side at said notch leading edge to protect said first fluid from said second fluid as said first fluid discharges from said holes into said notch; wherein said holes are spaced inwardly from said notch leading edge in said notch forward surface to prevent the formation of a sharp corner thereat, thereby reducing the potential for damaging said wall during operation of said engine.

이 특허를 인용한 특허 (66)

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Barry, Vincent Anthony; Demarche, Thomas Edward, Failsafe film cooled wall.
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Yufeng Phillip Yu ; Gary Michael Itzel ; Sarah Jane Osgood ; Radhakrishna Bagepalli ; Waylon Willard Webbon ; Steven Sebastian Burdgick, Film cooling air pocket in a closed loop cooled airfoil.
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Shih, Tom I-P; Na, Sangkwon, Momentum preserving film-cooling shaped holes.
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