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公开(公告)号：JP2000186503A
公开(公告)日：2000-07-04
申请号：JP35858299
申请日：1999-12-17
Applicant: UNITED TECHNOLOGIES CORP
Inventor： LIANG GEORGE P
Abstract: PROBLEM TO BE SOLVED: To cool the intersecting part of the rear edge of an air foil and a blade platform by providing the air foil with the front edge and the rear edge, and providing a platform cooling supply channel and plural cooling holes on a surface, which are respectively communicated with a cooling passage. SOLUTION: A platform cooling supply channel 34 is extended from a first side 30 through a blade platform 24 to a second side 32. Plural cooling holes 36 are provided in a second surface 28, and connected to the platform cooling supply channel 34 by one of plural cooling passages 38. The cooling hole 36 is communicated with the platform cooling supply channel 34 through one cooling passage 38. An air foil cooling supply channel 40 is extended from the blade root above the air foil 40, thereby supplying cooling air to the air foil 40 during the operation of an engine. The platform cooling supply channel 34 decreases the total weight of the blade.
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公开(公告)号：JPH11247607A
公开(公告)日：1999-09-14
申请号：JP37578098
申请日：1998-12-17
Applicant: UNITED TECHNOLOGIES CORP
Inventor： LIANG GEORGE P
Abstract: PROBLEM TO BE SOLVED: To prevent generation of a hot spot at a trailing edge of a blade in a blade platform. SOLUTION: A convection cooling turbine blade 10 has two different cooling air passage systems. The first passage system 30 cools a turbine blade leading edge 18, and discharges the cooling air through an outlet passage 36 of the leading edge 18 provided in a shower head arrangement. The second passage system 38 comprises five route flow passages constituted of five cooling passage parts 40, 41, 42, 43, and 44 which pass through a remain part of the turbine blade 10 and extended in series. The passage part 40 comprises a plurality of recesses 92, 94 near the trailing edge 20 of the turbine blade 10, and cooling air flow is held for the trailing edge 20 adjacent to a root part 22 of the turbine blade 10.
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公开(公告)号：JPH11247611A
公开(公告)日：1999-09-14
申请号：JP37577998
申请日：1998-12-17
Applicant: UNITED TECHNOLOGIES CORP
Inventor： LIANG GEORGE P , AUXIER THOMAS A
Abstract: PROBLEM TO BE SOLVED: To provide an appropriate cooling along a leading edge of a hollow air foil, generate a uniform and perpetual cooling air film downstream of the leading edge on both sides of the air foil, and minimize a stress generated in a wall of the air foil. SOLUTION: The hollow air foil comprises a main body, a trench 30, and a plurality of cooling hole 36 provided to the trench 30. The main body includes an outer wall 22 extending in a blade chord direction between a leading edge 24 and a trailing edge, extending in a span direction between an outer radius direction surface and an inner radius direction surface, and surrounding a cavity 20. The trench 30 is provided to the outer wall 22 along the leading edge 24, and extends in the span direction.
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公开(公告)号：JPH11247608A
公开(公告)日：1999-09-14
申请号：JP37578198
申请日：1998-12-17
Applicant: UNITED TECHNOLOGIES CORP
Inventor： LIANG GEORGE P
IPC: F01D5/18
Abstract: PROBLEM TO BE SOLVED: To maintain a pressure, velocity, and mass flow of a cooling air to a level in which local overheating of a turbine blade can be prevented. SOLUTION: A convection cooling turbine blade 10 has two different cooling air passage systems. The first passage system 30 cools a turbine blade leading edge 18, and discharges the cooling air through an outlet passage 36 of the leading edge 18 provided in a shower head arrangement. The second passage system 38 comprises five route flow passages constituted of five cooling passage parts 40, 41, 42, 43, and 44 which pass through a remain part of the turbine blade 10 and extend in series. Cooling air re-supply passages 82, 84 inject additional cooling air to the third cooling passage part 42 and the fifth cooling passage part 44.
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公开(公告)号：DE4041026C2
公开(公告)日：2002-03-14
申请号：DE4041026
申请日：1990-12-20
Applicant: UNITED TECHNOLOGIES CORP
Inventor： LIANG GEORGE P
Abstract: A first metal sheet (34) has openings (46) in registration with depressions (40) in a second contacting metal sheet (36). Each depression has a downstream wall (42) at an angle of 24 DEG from the plane of the sheets. A metering hole (56) in the depression amidst cooling air in a direction to first impinge against an overlaying portion (48) of the first plate, before it diffuses along the downstream wall.
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Patent Agency Ranking
公开(公告)号：DE69816578T2
公开(公告)日：2004-06-03
申请号：DE69816578
申请日：1998-12-04
Applicant: UNITED TECHNOLOGIES CORP
Inventor： LIANG GEORGE P
Abstract: A convectively cooled turbine blade 10 has two distinct cooling air passage systems. The first system 30 cools the blade leading edge and emits cooling air through outlet passageways 36 in the leading edge arranged in showerhead array. The second system 38 includes a five-pass series flow passage comprising five cooling passage sections 41-45 that extend in series through the remainder of the blade. One of the passage sections includes a plurality of recesses 92,94 near the trailing edge 20 of the turbine blade to retain cooling air flow to the trailing edge adjacent the root portion of the blade.
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公开(公告)号：DE4041026A1
公开(公告)日：2000-11-16
申请号：DE4041026
申请日：1990-12-20
Applicant: UNITED TECHNOLOGIES CORP
Inventor： LIANG GEORGE P
Abstract: A first metal sheet (34) has openings (46) in registration with depressions (40) in a second contacting metal sheet (36). Each depression has a downstream wall (42) at an angle of 24 DEG from the plane of the sheets. A metering hole (56) in the depression amidst cooling air in a direction to first impinge against an overlaying portion (48) of the first plate, before it diffuses along the downstream wall.
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公开(公告)号：DE69822100T2
公开(公告)日：2004-07-22
申请号：DE69822100
申请日：1998-12-17
Applicant: UNITED TECHNOLOGIES CORP
Inventor： LIANG GEORGE P
IPC: F01D5/18
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公开(公告)号：DE69822100D1
公开(公告)日：2004-04-08
申请号：DE69822100
申请日：1998-12-17
Applicant: UNITED TECHNOLOGIES CORP
Inventor： LIANG GEORGE P
IPC: F01D5/18
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公开(公告)号：DE69816578D1
公开(公告)日：2003-08-28
申请号：DE69816578
申请日：1998-12-04
Applicant: UNITED TECHNOLOGIES CORP
Inventor： LIANG GEORGE P
Abstract: A convectively cooled turbine blade 10 has two distinct cooling air passage systems. The first system 30 cools the blade leading edge and emits cooling air through outlet passageways 36 in the leading edge arranged in showerhead array. The second system 38 includes a five-pass series flow passage comprising five cooling passage sections 41-45 that extend in series through the remainder of the blade. One of the passage sections includes a plurality of recesses 92,94 near the trailing edge 20 of the turbine blade to retain cooling air flow to the trailing edge adjacent the root portion of the blade.
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