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公开(公告)号：DE3683742D1
公开(公告)日：1992-03-12
申请号：DE3683742
申请日：1986-12-18
Applicant: UNITED TECHNOLOGIES CORP
Inventor： FIELD ROBERT EUGENE , PHILLIPS JAMES STEWART
IPC: F01D5/18
Abstract: The wall of a hollow airfoil for a gas turbine engine includes a film cooling slot therein elongated in the longitudinal direction and having a base within the wall and an outlet at the external surface of the airfoil. A plurality of metering passages extend from inlets at the internal surface of the wall and intersect the slot near its base. The metering passages are angled to direct a metered flow of coolant fluid at a sharp angle against a surface of the slot to cause turbulence and diffusion of the coolant fluid within the slot in order that the coolant fluid fill the entire slot. The coolant fluid thereupon exits the slot as a thin film over the surface of the airfoil downstream of the slot outlet along the full length of the slot.
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Patent Agency Ranking
公开(公告)号：AU597922B2
公开(公告)日：1990-06-14
申请号：AU6674186
申请日：1986-12-17
Applicant: UNITED TECHNOLOGIES CORP
Inventor： PHILLIPS JAMES STEWART , FIELD ROBERT EUGENE
Abstract: The wall of a hollow turbine airfoil has a longitudinally extending coolant outlet slot in its external surface which intersects, along its length, a longitudinally extending cylindrical channel within the wall. Metering passages extend from the inside surface of the airfoil wall to the cylindrical channel and direct a metered amount of coolant into the channel in a manner which results in a swirling motion being imparted to the fluid as the fluid diffuses within the channel. The coolant is thereupon ejected from the channel through the slot in the external surface as a film on the external surface of the airfoil along the length of the slot. The swirling of the fluid within the cylindrical channel helps diffuse the fluid such that the outlet slot becomes completely filled with coolant, whereby a film of coolant is created on the airfoil surface downstream of the slot over the full length of the slot.
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公开(公告)号：AU6674186A
公开(公告)日：1987-06-25
申请号：AU6674186
申请日：1986-12-17
Applicant: UNITED TECHNOLOGIES CORP
Inventor： PHILLIPS JAMES STEWART , FIELD ROBERT EUGENE
Abstract: The wall of a hollow turbine airfoil has a longitudinally extending coolant outlet slot in its external surface which intersects, along its length, a longitudinally extending cylindrical channel within the wall. Metering passages extend from the inside surface of the airfoil wall to the cylindrical channel and direct a metered amount of coolant into the channel in a manner which results in a swirling motion being imparted to the fluid as the fluid diffuses within the channel. The coolant is thereupon ejected from the channel through the slot in the external surface as a film on the external surface of the airfoil along the length of the slot. The swirling of the fluid within the cylindrical channel helps diffuse the fluid such that the outlet slot becomes completely filled with coolant, whereby a film of coolant is created on the airfoil surface downstream of the slot over the full length of the slot.
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公开(公告)号：DE3683743D1
公开(公告)日：1992-03-12
申请号：DE3683743
申请日：1986-12-18
Applicant: UNITED TECHNOLOGIES CORP
Inventor： PHILLIPS JAMES STEWART , FIELD ROBERT EUGENE
Abstract: The wall of a hollow turbine airfoil has a longitudinally extending coolant outlet slot in its external surface which intersects, along its length, a longitudinally extending cylindrical channel within the wall. Metering passages extend from the inside surface of the airfoil wall to the cylindrical channel and direct a metered amount of coolant into the channel in a manner which results in a swirling motion being imparted to the fluid as the fluid diffuses within the channel. The coolant is thereupon ejected from the channel through the slot in the external surface as a film on the external surface of the airfoil along the length of the slot. The swirling of the fluid within the cylindrical channel helps diffuse the fluid such that the outlet slot becomes completely filled with coolant, whereby a film of coolant is created on the airfoil surface downstream of the slot over the full length of the slot.
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公开(公告)号：AU6668086A
公开(公告)日：1987-06-25
申请号：AU6668086
申请日：1986-12-16
Applicant: UNITED TECHNOLOGIES CORP
Inventor： FIELD ROBERT EUGENE , PHILLIPS JAMES STEWART
Abstract: The wall of a hollow airfoil for a gas turbine engine includes a film cooling slot therein elongated in the longitudinal direction and having a base within the wall and an outlet at the external surface of the airfoil. A plurality of metering passages extend from inlets at the internal surface of the wall and intersect the slot near its base. The metering passages are angled to direct a metered flow of coolant fluid at a sharp angle against a surface of the slot to cause turbulence and diffusion of the coolant fluid within the slot in order that the coolant fluid fill the entire slot. The coolant fluid thereupon exits the slot as a thin film over the surface of the airfoil downstream of the slot outlet along the full length of the slot.
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公开(公告)号：AU593309B2
公开(公告)日：1990-02-08
申请号：AU6668086
申请日：1986-12-16
Applicant: UNITED TECHNOLOGIES CORP
Inventor： FIELD ROBERT EUGENE , PHILLIPS JAMES STEWART
Abstract: The wall of a hollow airfoil for a gas turbine engine includes a film cooling slot therein elongated in the longitudinal direction and having a base within the wall and an outlet at the external surface of the airfoil. A plurality of metering passages extend from inlets at the internal surface of the wall and intersect the slot near its base. The metering passages are angled to direct a metered flow of coolant fluid at a sharp angle against a surface of the slot to cause turbulence and diffusion of the coolant fluid within the slot in order that the coolant fluid fill the entire slot. The coolant fluid thereupon exits the slot as a thin film over the surface of the airfoil downstream of the slot outlet along the full length of the slot.
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