Ceramic component for a turbomachine
A ceramic component for a turbomachine, the ceramic component ( 1 ) being configured to be destroyed in response to a contacting with another component ( 2 ) of the turbomachine that moves relative to the ceramic component ( 1 ). A turbomachine component pairing and a turbomachine including such a ceramic component.
1. A sealing section for a turbomachine comprising:
a brush seal having brushes for contacting a shaft;
a holding device holding the brush seal, the holding device extending radially to back brushes of the brush seal; and
a ceramic component contacting the holding device and extending radially beyond the holding device, a section of the ceramic component designed to be destroyed in response to contact with the shaft;
wherein the section is a U-shaped section and wherein legs of the U-shaped section extend axially parallel to an axis of rotation.
2. The sealing section as recited in claim 1 wherein the holding device and the ceramic component are connected at a connection radially outward of the brush seal.
3. The sealing section as recited in claim 2 wherein holding device has a front and a rear and the brush seal is located partially between the front and the rear, the rear backing the brush seal.
4. The sealing section as recited in claim 1 wherein the section includes at least one weakened zone having a reduced material thickness compared to a rest of the ceramic component.
5. The sealing section as recited in claim 1 wherein the ceramic component at least partially bounds a passage opening provided for the shaft.
6. The sealing section as recited in claim 1 wherein holding device has a front and a rear and the brush seal is located partially between the front and the rear, the rear backing the brush seal.
7. The sealing section as recited in claim 6 wherein the front, the rear and the ceramic plate are connected at a connection radially outwardly of the brush seal.
8. The sealing section as recited in claim 1 wherein the ceramic component includes a monocrystalline ceramic material or a fiber-reinforced ceramic material.
9. The sealing section as recited in claim 1 wherein the ceramic component is spaced apart from the brushes.
10. A turbomachine comprising the sealing section as recited in claim 1 and the shaft.
11. A method of providing sealing for a shaft of a turbomachine comprising:
providing the sealing section as recited in claim 1 so as to permit sealing of the shaft via the brush seal, the ceramic component being designed to permit the ceramic component to fracture at the section upon contact with the shaft.
12. A sealing section for a turbomachine comprising:
a brush seal having brushes extending radially inwardly;
a holding device holding the brush seal, the holding device extending radially to back brushes of the brush seal; and
a ceramic component contacting the holding device but not the brush seal and extending radially beyond the holding device and having a U-shaped section, wherein legs of the U-shaped section extend axially parallel to an axis of rotation of the shaft.