公开(公告)号：US10801336B1

公开(公告)日：2020-10-13

申请号：US15869290

申请日：2018-01-12

Applicant: United Technologies Corporation

Inventor： Charles P. Gendrich ,  Christopher St. Mary ,  Xuedong Zhou ,  Joseph Wieser ,  Zhen Wu ,  John Joseph Papalia ,  Kaliya Balamurugan ,  Joseph Steele ,  Jeff M. Carrico ,  Danoris Garcia-Chabrier

IPC: F01D5/26 ,  F01D5/00 ,  F02K3/06 ,  F01D5/16 ,  F01D5/28 ,  F01D25/06

Abstract: An airfoil has pressure and suction sides spaced apart from one another in a thickness direction and joined to one another at leading and trailing edges. The airfoil extends in a radial direction a span that is in a range of 0.70-0.83 inch (17.8-21.1 mm). A chord length extends in a chordwise direction from the leading edge to the trailing edge at 50% span is in a range of 0.34-0.45 inch (8.5-11.5 mm). The airfoil element includes at least three of a first mode with a frequency of 3748±15% Hz, a second mode with a frequency of 6416±15% Hz, a third mode with a frequency of 14418±15% Hz, a fourth mode with a frequency of 17417±15% Hz, a fifth mode with a frequency of 19326±15% Hz and a sixth mode with a frequency of 26648±15% Hz.

公开(公告)号：US10815787B1

公开(公告)日：2020-10-27

申请号：US15869206

申请日：2018-01-12

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： David Mikol ,  Kimberly Pash Boyington ,  Brian J. Schuler ,  Zhen Wu ,  Joseph Wieser ,  Xuedong Zhou ,  Sue-Li Chuang ,  John Joseph Papalia ,  Han J. Yu

IPC: F04D29/32 ,  F02K3/06 ,  F02C3/06 ,  F01D5/16 ,  F04D29/38 ,  F04D29/66

Abstract: A turbomachine airfoil element includes an airfoil that has pressure and suction sides spaced apart from one another in a thickness direction and joined to one another at leading and trailing edges. The airfoil extends in a radial direction a span that is in a range of 0.46-0.59 inch (11.8-14.9 mm). A chord length extends in a chordwise direction from the leading edge to the trailing edge at 50% span and is in a range of 0.73-0.86 inch (18.6-21.9 mm). The airfoil element includes at least two of a first mode with a frequency of 5133±15% Hz, a second mode with a frequency of 8542±15% Hz, a third mode with a frequency of 15487±15% Hz, a fourth mode with a frequency of 18774±15% Hz, a fifth mode with a frequency of 24295±15% Hz and a sixth mode with a frequency of 27084±15% Hz.

公开(公告)号：US10808544B1

公开(公告)日：2020-10-20

申请号：US15868181

申请日：2018-01-11

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Xuedong Zhou ,  Evan K. Fink ,  Joseph C. Straccia ,  Joseph Wieser ,  Konstantinos Panagiotis Giannakopoulos

IPC: F01D5/14 ,  F01D5/16 ,  F01D5/00 ,  F01D5/34 ,  F01D9/04 ,  F02C3/06

Abstract: A turbomachine airfoil element includes an airfoil that has pressure and suction sides spaced apart from one another in a thickness direction and joined to one another at leading and trailing edges. The airfoil extends in a radial direction a span that is in a range of 4.35-4.65 inch (110.5-118.1 mm). A chord length extends in a chordwise direction from the leading edge to the trailing edge at 50% span and is in a range of 2.45-2.75 inch (62.2-69.9 mm). The airfoil element includes at least two of a first mode with a frequency of 255±10% Hz, a second mode with a frequency of 818±10% Hz, a third mode with a frequency of 1439±10% Hz, a fourth mode with a frequency of 2035±10% Hz, a fifth mode with a frequency of 3033±10% Hz and a sixth mode with a frequency of 3740±10% Hz.

公开(公告)号：US10760429B1

公开(公告)日：2020-09-01

申请号：US15868312

申请日：2018-01-11

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Xuedong Zhou ,  Evan K. Fink ,  Joseph C. Straccia ,  Joseph Wieser ,  Konstantinos Panagiotis Giannakopoulos

IPC: F01D5/00 ,  F01D5/16 ,  F01D5/34 ,  F01D9/04 ,  F02C3/06

Abstract: A turbomachine airfoil element includes an airfoil that has pressure and suction sides spaced apart from one another in a thickness direction and joined to one another at leading and trailing edges. The airfoil extends in a radial direction a span that is in a range of 3.45-3.75 inch (87.6-95.3 mm). A chord length extends in a chordwise direction from the leading edge to the trailing edge at 50% span and is in a range of 1.55-1.85 inch (39.4-47.0 mm). The airfoil element includes at least two of a first mode with a frequency of 424±10% Hz, a second mode with a frequency of 1401±10% Hz, a third mode with a frequency of 1770±10% Hz, a fourth mode with a frequency of 3336±10% Hz, a fifth mode with a frequency of 3378±10% Hz and a sixth mode with a frequency of 4141±10% Hz.