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公开(公告)号：JP2001107704A
公开(公告)日：2001-04-17
申请号：JP2000295597
申请日：2000-09-28
Applicant: UNITED TECHNOLOGIES CORP
Inventor： LAFLEUR RONALD S
Abstract: PROBLEM TO BE SOLVED: To provide a device and method for cooling a wall, having a selectively adjustable thermal transfer profile so as to be substantially agreed with heat load profile. SOLUTION: A circuit 26 is arranged inside a wall of a gas turbine engine, the circuit 26 having a front end 30, a rear end 32, a first wall part 34, a second wall part 36, and a plurality of pedestals 42, 43, 45. The first and second wall parts 34, 36 spaced certainly from each other are extended between the front end 30 and the rear end 32 of the cooling circuit 26 in the longitudinal direction 52. The pedestals 42, 43, 45 are laid between the first and second wall parts 34 and 36. Characteristics and lines of the pedestals in the cooling circuit 26 are so selected that a thermal transfer cooling profile is provided in the cooling circuit 26 for substantially offsetting heat load profile applied to the wall including the cooling circuit 26.
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公开(公告)号：JP2000186505A
公开(公告)日：2000-07-04
申请号：JP36208499
申请日：1999-12-21
Applicant: UNITED TECHNOLOGIES CORP
Inventor： KVASNAK WILLIAM S , LAFLEUR RONALD S
Abstract: PROBLEM TO BE SOLVED: To improve cooling performance of a rear edge of an aerofoil while avoiding a problem of mechanical fatigue. SOLUTION: This aerofoil is placed a plurality of first openings 20 at an outer wall with adjacent to a rear edge 28 thereof. Each first opening 20 is positioned at an suction face side from a center line 42 of the aerofoil in a longer range than a half length of the first openings 20, and a rear part 50 opens outside from a wall 14 at pressure face side beyond the center line 42. A plurality of second openings 22 are extended through the inside of the wall 14 at the pressure face side and opens outside from the wall 14 at the pressure face side at the upstream and close position of the first openings 20. Since the first openings 20 are positioned close to a wall 16 side of the suction face side, convection cooling can be sufficiently carried out and the second openings 22 can be arranged close to the rear edge 28 side to sufficiently carry out film cooling.
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公开(公告)号：JP2001107705A
公开(公告)日：2001-04-17
申请号：JP2000303468
申请日：2000-10-03
Applicant: UNITED TECHNOLOGIES CORP
Inventor： KVASNAK WILLIAM S , LAFLEUR RONALD S , SOECHTING FRIEDRICH O , JOE CHRISTOPHER R , MOROSO JOE , HAYES DOUGLAS A
Abstract: PROBLEM TO BE SOLVED: To provide a cooling device and method for a wall for provide a convection cooling inside the wall. SOLUTION: This cooling circuit 22 having one or more inlet openings 40 and one or more outlet openings 44 is arranged between a first wall part and a second wall part. The inlet opening 40 provides a cooling air flow passage led to the cooling circuit 22, while the outlet opening 44 provides a cooling air passage led out of the cooling circuit 22. The cooling circuit 22 includes a plurality of first pedestals 34 extended between the first and second wall parts. The first pedestals are arranged in at least one line 48. In one preferred embodiment, the first pedestals are separated from each other by inner-line spacings 50 in any line 48, while the adjacent pedestals in the adjacent lines are spaced from separated from each other by across-line spacings 52. The inner-line spacing 50 exceeds the across-like spacing 52.
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Patent Agency Ranking
公开(公告)号：DE60040324D1
公开(公告)日：2008-11-06
申请号：DE60040324
申请日：2000-10-05
Applicant: UNITED TECHNOLOGIES CORP
Inventor： LAFLEUR RONALD S
Abstract: A cooling circuit 26 is disposed within a wall particularly within a gas turbine engine. The cooling circuit 26 includes a forward end 30, an aft end 40 and first, second and third sets of pedestals 42, 43, 45 which extend between first and second portions 34, 36 of the wall. At least one inlet aperture 56 provides a cooling airflow path into the forward portion of the cooling circuit from a cavity 58. A plurality of exit apertures 60 formed between the second and third pedestals 43, 45 provide a cooling airflow path out of the aft portion 40 of the cooling circuit and into the core gas path outside the wall. The second pedestals 43 are T-shaped in section
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公开(公告)号：DE60041025D1
公开(公告)日：2009-01-22
申请号：DE60041025
申请日：2000-10-05
Applicant: UNITED TECHNOLOGIES CORP
Inventor： KVASNAK WILLIAM S , LAFLEUR RONALD S , MOROSO JOE , SOECHTING FRIEDRICH O , JOE CHRISTOPHER R , HAYES DOUGLAS A
Abstract: A cooling circuit 22 disposed between a first wall portion 36 and a second wall portion 38 of a wall 24 for use in a gas turbine engine, comprises one or more inlet apertures 40, and one or more exit apertures 44. The inlet aperture(s) 40 provides a cooling airflow path into the cooling circuit 22 and the exit aperture(s) 44 provides a cooling airflow path out of the cooling circuit 22. The cooling circuit includes a plurality of first pedestals 34 extending between the first wall portion 36 and the second wall portion 38. The first pedestals 34 arc arranged in one or more rows 48. Preferably the distance between the pedestals 34 in a row 48 is greater than the distance between the rows 48. Also, preferably the passage 57, 90 between the pedestals 34 define a pair of throats 62, 64 with a diffuser 60 in between. The exit apertures 44 are preferably defined between a plurality of second and third pedestals 66, 68 with mating geometries.
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公开(公告)号：DE60041091D1
公开(公告)日：2009-01-22
申请号：DE60041091
申请日：2000-10-05
Applicant: UNITED TECHNOLOGIES CORP
Inventor： LAFLEUR RONALD S
Abstract: A cooling circuit 26 is disposed within a wall particularly within a gas turbine engine. The cooling circuit 26 includes a forward end 30, an aft end 40 and first, second and third sets of pedestals 42, 43, 45 which extend between first and second portions 34, 36 of the wall. At least one inlet aperture 56 provides a cooling airflow path into the forward portion of the cooling circuit from a cavity 58. A plurality of exit apertures 60 formed between the second and third pedestals 43, 45 provide a cooling airflow path out of the aft portion 40 of the cooling circuit and into the core gas path outside the wall. The second pedestals 43 are T-shaped in section
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公开(公告)号：DE69925447T2
公开(公告)日：2005-10-27
申请号：DE69925447
申请日：1999-12-14
Applicant: UNITED TECHNOLOGIES CORP EAST
Inventor： KVASNAK WILLIAM S , LAFLEUR RONALD S
Abstract: A coolable airfoil 10 includes an internal cavity 18, an external wall 12, a plurality of first apertures 20, and a plurality of second apertures 20. The external wall 12 includes a suction-side portion 14 and a pressure-side portion 16. The external wall portions 12 extend chordwise between a leading edge 26 and a trailing edge 28. The first apertures 20, which are disposed in the external wall 12 adjacent the trailing edge 28, extend a distance within the suction-side wall portion 16 and exit the external wall through the pressure-side wall portion 14. The second apertures 22 extend through the pressure-side wall portion 14 and exit the pressure-side wall portion 14 upstream of and in close proximity to the first apertures 20.
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公开(公告)号：DE69925447D1
公开(公告)日：2005-06-30
申请号：DE69925447
申请日：1999-12-14
Applicant: UNITED TECHNOLOGIES CORP EAST
Inventor： KVASNAK WILLIAM S , LAFLEUR RONALD S
Abstract: A coolable airfoil 10 includes an internal cavity 18, an external wall 12, a plurality of first apertures 20, and a plurality of second apertures 20. The external wall 12 includes a suction-side portion 14 and a pressure-side portion 16. The external wall portions 12 extend chordwise between a leading edge 26 and a trailing edge 28. The first apertures 20, which are disposed in the external wall 12 adjacent the trailing edge 28, extend a distance within the suction-side wall portion 16 and exit the external wall through the pressure-side wall portion 14. The second apertures 22 extend through the pressure-side wall portion 14 and exit the pressure-side wall portion 14 upstream of and in close proximity to the first apertures 20.
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