Turbomachine blade assembly

Patent metadata

Field	Value
Publication number	US-10526901-B2
Application number	US-201715458257-A
Country	US
Kind code	B2
Filing date	Mar 14, 2017
Priority date	Mar 16, 2016
Publication date	Jan 7, 2020
Grant date	Jan 7, 2020

Abstract

A turbomachine blade assembly including a turbomachine blade (1), in particular for a gas turbine, and at least one tuning element container including a housing (10) attached to the turbomachine blade and an insert (20) disposed in a recess (11) of this housing. A wall (20; 21) of the insert spaces apart two first cavities (31), which each accommodate at least one tuning element (40) provided for impacting contact with the housing (10) and the insert (20).

First claim

What is claimed is:

1. A turbomachine blade assembly comprising:
a turbomachine blade;
at least one tuning element container including a housing attached to the turbomachine blade and an insert disposed in a recess of the housing, a wall of the insert spacing apart two first cavities; and
tuning elements provided for impacting contact with the housing and the insert, the two first cavities each accommodating at least one of the tuning elements.

2. The turbomachine blade assembly as recited in claim 1 wherein the wall spaces apart two second cavities each accommodating at least one of the tuning elements.

3. The turbomachine blade assembly as recited in claim 2 wherein the wall or a further wall of the housing spaces apart at least one of the first cavities and one of the second cavities.

4. The turbomachine blade assembly as recited in claim 1 wherein the housing is formed as a single part or the insert is formed as a single part.

5. The turbomachine blade assembly as recited in claim 1 wherein the housing or the insert is symmetrical about an axial plane.

6. The turbomachine blade assembly as recited in claim 1 wherein at least two parts of the housing, or the housing and the insert are joined together by a material-to-material bond.

7. The turbomachine blade assembly as recited in claim 6 wherein the material-to material bond includes a weld.

8. The turbomachine blade assembly as recited in claim 1 wherein end faces of two parts of the housing are joined together, at least one of the end faces having a depression, the insert being at least partially received in the depression.

9. The turbomachine blade assembly as recited in claim 1 wherein the housing has a recess open at one or both ends, the insert being inserted in the recess.

10. The turbomachine blade assembly as recited in claim 1 wherein the housing or the insert have at least one recess open at one or both ends and bounding one of the two first cavities.

11. The turbomachine blade assembly as recited in claim 1 wherein the housing is cuboid-shaped.

12. A turbomachine comprising: at least one turbomachine blade assembly as recited in claim 1 .

13. A gas turbine comprising the turbomachine blade assembly as recited in claim 12 .

14. A method for manufacturing the turbomachine blade assembly as recited in claim 1 , comprising placing the tuning elements into the first cavities and placing the insert into a recess of the housing.

15. The turbomachine blade assembly as recited in claim 1 wherein the housing is formed of two identical parts.

16. The turbomachine blade assembly as recited in claim 1 wherein the wall is contacted by a first of the tuning elements in one of the first two cavities, and by a second of the tuning elements in an other of the first two cavities on another side of the wall.

Assignees

• MTU Aero Engines AG

Inventors

• Schlemmer Markus
• Roesele Gerhard-Heinz
• Hartung Andreas

Classifications

• F05D2230/51

  in a modular way, e.g. using several identical or complementary parts or features · CPC title

• F05D2250/241

  spherical · CPC title

• F05D2250/22

  parallelepipedal · CPC title

• F16F7/10

  using inertia effect (F16F13/108, F16F13/22, F16F15/10, F16F15/22 take precedence; stabilising vehicle bodies by means of movable masses B62D37/04; protection of buildings against vibrations or shocks by mass dampers E04H9/0215; arrangements or devices for damping mechanical oscillations of power lines H02G7/14) · CPC title

• F04D29/668

  damping or preventing mechanical vibrations · CPC title