Turbomachine seal system
A seal system for a turbomachine, in particular a gas turbine, which includes a first component ( 10 A, 10 B), a second component ( 20 ), a flap ( 30 ) for sealing a gap between the first and second components, and a leaf spring, which includes a first leg ( 41 ) and a second leg ( 42 ), in a mounting state in which the flap and the second component do not contact each other, a projection of an abutment area ( 11 ) of the first component ( 10 A, 10 B), against which the first leg ( 41 ) is supported via the flap ( 30 ), is situated perpendicularly to a contact line (K) through at least two contact points of the first leg ( 41 ) with the flap ( 30 ), at least partially within a bearing surface (A) of the first component ( 10 A, 10 B), against which the second leg ( 42 ) of the pretensioned leaf spring is supported.
1. A sealing system for a turbomachine, the sealing system comprising:
a first component having an abutment area and a bearing surface;
a second component;
a flap for sealing a gap between the first and second components; and
a leaf spring including a first leg and a second leg,
wherein in a mounting state in which the flap and the second component do not contact each other,
a vector (P) projecting from the abutment area towards the second leg, and normal to a contact line (K) defined by at least two contact points of the first leg with the flap, is situated at least partially within the bearing surface of the first component, the second leg of the leaf spring being supported against the bearing surface, the leaf spring being pretensioned in said mounting state.
2. The seal system as recited in claim 1 wherein the first leg and the flap abut each other planarly in the mounting state.
3. The seal system as recited in claim 1 wherein, in a sealing state the flap and the second component contact each other, and in the sealing state a contact area of the first leg with the flap is situated between a support of the flap on the first component and a further support of the flap on the second component.
4. The seal system as recited in claim 1 further comprising at least one positioning element, the flap or the leaf spring being secured on the positioning element.
5. The seal system as recited in claim 4 wherein the flap or the leaf spring is movably secured on the positioning element.
6. The seal system as recited in claim 4 wherein the positioning element is connected to the first component.
7. The seal system as recited in claim 6 wherein the first component includes a flange forming the bearing surface, the positioning element connected to the flange.
8. The seal system as recited in claim 4 wherein the positioning element passes through a through-opening in the flap or at least one through-opening in the leaf spring.
9. The seal system as recited in claim 8 wherein a gap is formed between the positioning element and the through-opening in the flap or the through-opening in the leaf spring.
10. The seal system as recited in claim 1 wherein the first or second component is a stator component of the turbomachine.
11. The seal system as recited in claim 1 wherein the first or second component is a stator component of a compressor or turbine stage.
12. The seal system as recited in claim 1 wherein the first or second component includes a ceramic matrix.
13. The seal system as recited in claim 1 wherein the first component includes a first element forming the bearing surface and a second element connected detachably to the first element and forming the abutment area.
14. A turbomachine comprising at least one seal system as recited in claim 1 .
15. The turbomachine as recited in claim 14 wherein the at least one seal system includes at least one first seal system as recited in claim 1 and at least one second seal system as recited in claim 1 , the first component of the first seal system forming the second component of the second seal system or an element thereof.
16. A gas turbine comprising the turbomachine as recited in claim 14 .
17. A method for sealing a gap between the first and second components of the seal system as recited in claim 1 , the method comprising: contacting the flap and the second component with each other in a sealing state, and a contact area of the first leg with the flap being situated between a support of the flap on the first component and a further support of the flap on the second component.
18. A method for mounting a seal system as recited in claim 1 , the method comprising:
in the mounting state, clamping the flap against the abutment area by the contact surface of the first leg of the pretensioned leaf spring, and placing the seal system in a sealing state by moving the first and second components toward each other, so that the flap and the second component contact each other, and a contact area of the first leg with the flap is situated between a support of the flap on the first component and a further support of the flap on the second component.