Raytheon Technologies Corporation

United Technologies Corporation

William R Edwards

Steven J Feigleson

Charles H Warner

Joseph C Straccia

Kate Hudon

Mark A Stephens

Sean Nolan

Stephen W Milks

Ernest D Casparie

Mark David Ring

Lisa I Brilliant

Richard K Hayford

David P Dube

Mark E Simonds

Dennis R Tremblay

Jeffrey D Ponchak

Matthew R Willett

Nicholas Hunnewell

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 3.46-3.76 inch (87.8-95.5 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 1.98-2.28 inch (50.2-57.8 mm). The airfoil element includes at least one of a first mode with a frequency of 1056 &#xb1; 10% Hz and a second mode with a frequency of 1582 &#xb1; 10% Hz.

Gas turbine engine airfoil frequency design

A stator vane assembly for a gas turbine engine includes an inner vane support defining a first aperture, an outer vane support defining a second aperture, a stator having an inner end that extends through the first aperture and an outer end that extends through the second aperture, and a first bracket. The first bracket is operatively connected to the inner vane support and extends over the first aperture. The first bracket and the inner vane support defining a first pocket.

Gas turbine engine stator vane support

An airfoil assembly may include a shroud and an airfoil. The shroud may include a first attachment arm, a second attachment arm, and a shroud rail extending from a first surface of the shroud. A first channel may be defined between the first attachment arm, the first surface, and the shroud rail and a second channel may be defined between the second attachment arm, the first surface, and the shroud rail. The airfoil may extend from a second surface of the shroud opposite the first surface. In various embodiments, a height of the shroud rail, as measured from the first surface of the shroud, is non-uniform.

Tuned airfoil assembly

An airfoil extends in a radial direction a span in a range 3.97-4.27 inch (100.9-108.6 mm). A chord length extends in a chordwise direction from a leading edge to a trailing edge at 50% span in a range 1.28-1.58 inch (32.4-40.0 mm). The airfoil includes at least two of a first mode with a frequency of 243&#xb1;10% Hz, a second mode with a frequency of 374&#xb1;10% Hz, a third mode with a frequency of 741&#xb1;10% Hz, a fourth mode with a frequency of 1198&#xb1;10% Hz, a fifth mode with a frequency of 1663&#xb1;10% Hz, a sixth mode with a frequency of 2411&#xb1;10% Hz, a seventh mode with a frequency of 3734&#xb1;10% Hz, an eighth mode with a frequency of 6738&#xb1;10% Hz and a ninth mode with a frequency of 8977&#xb1;10% Hz.

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 3.26-3.56 inch (82.9-90.5 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 1.25-1.55 inch (31.8-39.4 mm). The airfoil element includes at least two of a first mode with a frequency of 323&#xb1;10% Hz, a second mode with a frequency of 476&#xb1;10% Hz, a third mode with a frequency of 1005&#xb1;10% Hz, a fourth mode with a frequency of 2670&#xb1;10% Hz, a fifth mode with a frequency of 3255&#xb1;10% Hz and a sixth mode with a frequency of 7628&#xb1;10% Hz.

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 2.59-2.89 inch (65.7-73.3 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 1.35-1.65 inch (34.4-42.0 mm). The airfoil element includes at least two of a first mode with a frequency of 2241&#xb1;10% Hz, a second mode with a frequency of 3598&#xb1;10% Hz and a third mode with a frequency of 6212&#xb1;10% Hz.

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 2.59-2.89 inch (65.7-73.3 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 1.46-1.76 inch (37.1-44.7 mm). The airfoil element includes at least two of a first mode with a frequency of 703&#xb1;10% Hz, a second mode with a frequency of 3574&#xb1;10% Hz, a third mode with a frequency of 8100&#xb1;10% Hz, a fourth mode with a frequency of 9450&#xb1;10% Hz, a fifth mode with a frequency of 11116&#xb1;10% Hz and a sixth mode with a frequency of 11620&#xb1;10% Hz.

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 0.55-0.65 inch (14.0-16.5 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 0.76-0.86 inch (19.3-21.8 mm). The airfoil element includes at least two of a first mode with a frequency of 3335&#xb1;10% Hz, a second mode with a frequency of 5715&#xb1;10% Hz and a third mode with a frequency of 41797&#xb1;10% Hz.

A turbomachine airfoil element includes an airfoil that has pressure and suction sides spaced apart from one another in a thickness direction and is joined to one another at leading and trailing edges. The airfoil extends in a radial direction a span that is in a range of 3.18-3.48 inch (80.7-88.4 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 1.17-1.47 inch (29.6-37.3 mm). The airfoil element includes at least two of a first mode with a frequency of 333&#xb1;10% Hz, a second mode with a frequency of 1554&#xb1;10% Hz, a third mode with a frequency of 2356&#xb1;10% Hz, a fourth mode with a frequency of 2830&#xb1;10% Hz, a fifth mode with a frequency of 4075&#xb1;10% Hz and a sixth mode with a frequency of 5239&#xb1;10% Hz.

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 3.84-4.14 inch (97.5-105.1 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 1.16-1.46 inch (29.5-37.1 mm). The airfoil element includes at least two of a first mode with a frequency of 326&#xb1;10% Hz, a second mode with a frequency of 1252&#xb1;10% Hz, a third mode with a frequency of 2475&#xb1;10% Hz, a fourth mode with a frequency of 2951&#xb1;10% Hz, a fifth mode with a frequency of 4356&#xb1;10% Hz and a sixth mode with a frequency of 6086&#xb1;10% Hz.

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 1.13-1.23 inch (28.7-31.2 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 0.64-0.74 inch (16.3-18.8 mm). The airfoil element includes at least two of a first mode with a frequency of 1634&#xb1;10% Hz, a second mode with a frequency of 5611&#xb1;10% Hz, a third mode with a frequency of 19027&#xb1;10% Hz, a fourth mode with a frequency of 29268&#xb1;10% Hz, a fifth mode with a frequency of 33103&#xb1;10% Hz, a sixth mode with a frequency of 34908&#xb1;10% Hz and a seventh mode with a frequency of 41277&#xb1;10% Hz.

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 2.58-2.88 inch (65.4-73.1 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 1.59-1.89 inch (40.3-48.0 mm). The airfoil element includes at least two of a first mode with a frequency of 2088&#xb1;10% Hz, a second mode with a frequency of 3099&#xb1;10% Hz, a third mode with a frequency of 6890&#xb1;10% Hz, a fourth mode with a frequency of 7207&#xb1;10% Hz, a fifth mode with a frequency of 11241&#xb1;10% Hz, a sixth mode with a frequency of 11916&#xb1;10% Hz and a seventh mode with a frequency of 12600&#xb1;10% Hz.

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 2.13-2.43 inch (54.2-61.8 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 3.56-3.86 inch (90.3-97.9 mm). The airfoil element includes at least one of a first mode with a frequency of 1049&#xb1;10% Hz and a second mode with a frequency of 1271&#xb1;10% Hz.

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 0.63-0.73 inch (16.0-18.5 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 0.61-0.71 inch (15.5-18.0 mm). The airfoil element includes at least two of a first mode with a frequency of 4852&#xb1;10% Hz, a second mode with a frequency of 11917&#xb1;10% Hz, a third mode with a frequency of 30842&#xb1;10% Hz and a fourth mode with a frequency of 35225&#xb1;10% Hz.

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 0.75-0.85 inch (19.1-21.6 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 0.56-0.66 inch (14.2-16.8 mm). The airfoil element includes at least two of a first mode with a frequency of 2740&#xb1;10% Hz, a second mode with a frequency of 5956&#xb1;10% Hz, a third mode with a frequency of 6554&#xb1;10% Hz and a fourth mode with a frequency of 31959&#xb1;10% Hz.

Growing community of inventors

Stratham, NH, United States of America

William R Edwards