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

IPC: F01D5/00 ,  F01D5/18

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.

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

IPC: F01D9/02 ,  F01D5/18 ,  F01D25/12

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.

公开(公告)号：JP2001020703A

公开(公告)日：2001-01-23

申请号：JP2000188966

申请日：2000-06-23

Applicant: UNITED TECHNOLOGIES CORP

Inventor： AUXIER THOMAS A ,  DOWNS JAMES P ,  KVASNAK WILLIAM S ,  SOECHTING FRIEDRICH O ,  CALHOUN WILLIAM H ,  HAYES DOUGLAS A

IPC: F01D5/18 ,  F01D9/02

Abstract: PROBLEM TO BE SOLVED: To provide a method and device for cooling a rotor blade wall by utilizing a smaller amount of cooling air than in conventional cooling methods and devices. SOLUTION: This method for cooling a wall 12 of a rotor blade 21 includes a step for providing the wall 12 having inner and outer faces, a step for disposing in the wall 12 a cooling micro circuit 10 with a passage for cooling air extending between the inner and outer faces, and a step for enhancing heat transfer to a fluid from the wall 12 to the passage by increasing an average heat transfer coefficient per unit flow rate in the micro circuit 10. This method and device can be adjusted so as to substantially coincide with a thermal profile of the wall 10 at that place.

公开(公告)号：DE602005022654D1

公开(公告)日：2010-09-16

申请号：DE602005022654

申请日：2005-04-13

Applicant: UNITED TECHNOLOGIES CORP

Inventor： KVASNAK WILLIAM S ,  LANDIS KENNETH K ,  PRZIREMBEL HANS R

IPC: F01D5/18 ,  B64C1/00 ,  F01D5/00

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

IPC: F01D5/18 ,  F01D9/02 ,  F01D25/12

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.

公开(公告)号：DE60025074D1

公开(公告)日：2006-02-02

申请号：DE60025074

申请日：2000-06-23

Applicant: UNITED TECHNOLOGIES CORP

Inventor： AUXIER THOMAS A ,  KVASNAK WILLIAM S ,  DOWNS JAMES P ,  SOECHTING FRIEDRICH O ,  CALHOUN WILLIAM H ,  HAYES DOUGLAS A

IPC: F01D5/18 ,  F01D9/02

Abstract: A method and apparatus for cooling a wall within a gas turbine engine is provided which comprises the steps of: (1) providing a wall having an internal surface and an external surface; (2) providing a cooling microcircuit within the wall that has a passage for cooling air that extends between the internal surface and the external surface; and (3) increasing heat transfer from the wall to a fluid flow within the passage by increasing the average heat transfer coefficient per unit flow within the microcircuit. According to one aspect, the present invention method and apparatus can be tuned to substantially match the thermal profile of the wall at hand.

公开(公告)号：DE60041366D1

公开(公告)日：2009-02-26

申请号：DE60041366

申请日：2000-06-23

Applicant: UNITED TECHNOLOGIES CORP

Inventor： AUXIER THOMAS A ,  DOWNS JAMES P ,  CALHOUN WILLIAM H ,  KVASNAK WILLIAM S ,  SOECHTING FRIEDRICH O ,  HAYES DOUGLAS A

IPC: F01D5/18 ,  F01D9/02

Abstract: A method and apparatus for cooling a wall within a gas turbine engine is provided which comprises the steps of: (1) providing a wall having an internal surface and an external surface; (2) providing a cooling microcircuit within the wall that has a passage for cooling air that extends between the internal surface and the external surface; and (3) increasing heat transfer from the wall to a fluid flow within the passage by increasing the average heat transfer coefficient per unit flow within the microcircuit. According to one aspect, the present invention method and apparatus can be tuned to substantially match the thermal profile of the wall at hand.

公开(公告)号：DE60031185D1

公开(公告)日：2006-11-16

申请号：DE60031185

申请日：2000-06-23

Applicant: UNITED TECHNOLOGIES CORP

Inventor： AUXIER THOMAS A ,  DOWNS JAMES P ,  CALHOUN WILLIAM H ,  KVASNAK WILLIAM S ,  SOECHTING FRIEDRICH O ,  HAYES DOUGLAS A

IPC: F01D5/18 ,  F01D9/02

Abstract: A method and apparatus for cooling a wall within a gas turbine engine is provided which comprises the steps of: (1) providing a wall having an internal surface and an external surface; (2) providing a cooling microcircuit within the wall that has a passage for cooling air that extends between the internal surface and the external surface; and (3) increasing heat transfer from the wall to a fluid flow within the passage by increasing the average heat transfer coefficient per unit flow within the microcircuit. According to one aspect, the present invention method and apparatus can be tuned to substantially match the thermal profile of the wall at hand.

公开(公告)号：DE60025074T2

公开(公告)日：2006-06-29

申请号：DE60025074

申请日：2000-06-23

Applicant: UNITED TECHNOLOGIES CORP

Inventor： AUXIER THOMAS A ,  KVASNAK WILLIAM S ,  DOWNS JAMES P ,  SOECHTING FRIEDRICH O ,  CALHOUN WILLIAM H ,  HAYES DOUGLAS A

IPC: F01D5/18 ,  F01D9/02

Abstract: A method and apparatus for cooling a wall within a gas turbine engine is provided which comprises the steps of: (1) providing a wall having an internal surface and an external surface; (2) providing a cooling microcircuit within the wall that has a passage for cooling air that extends between the internal surface and the external surface; and (3) increasing heat transfer from the wall to a fluid flow within the passage by increasing the average heat transfer coefficient per unit flow within the microcircuit. According to one aspect, the present invention method and apparatus can be tuned to substantially match the thermal profile of the wall at hand.

公开(公告)号：DE60031185T2

公开(公告)日：2007-08-23

申请号：DE60031185

申请日：2000-06-23

Applicant: UNITED TECHNOLOGIES CORP

Inventor： AUXIER THOMAS A ,  DOWNS JAMES P ,  CALHOUN WILLIAM H ,  KVASNAK WILLIAM S ,  SOECHTING FRIEDRICH O ,  HAYES DOUGLAS A

IPC: F01D5/18 ,  F01D9/02

Abstract: A method and apparatus for cooling a wall within a gas turbine engine is provided which comprises the steps of: (1) providing a wall having an internal surface and an external surface; (2) providing a cooling microcircuit within the wall that has a passage for cooling air that extends between the internal surface and the external surface; and (3) increasing heat transfer from the wall to a fluid flow within the passage by increasing the average heat transfer coefficient per unit flow within the microcircuit. According to one aspect, the present invention method and apparatus can be tuned to substantially match the thermal profile of the wall at hand.