Seal Arrangement and Method for Manufacturing a Sealing Body for a Seal Arrangement
AssigneeMTU Aero Engines AG
InventorHorst Pillhoefer
Life of this patent
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Abstract
A seal arrangement and a method for manufacturing a sealing body for a seal arrangement for a turbine engine is disclosed. The seal arrangement seals a gap between a rotor and a stator, and has at least one first seal body preferably assigned to the stator and at least one blade-shaped second seal body preferably assigned to the rotor which co-acts with the or each first seal body. The or each first seal body has a main body and a porous wear component, where the main body and the wear component have a graduated material composition.
Claims21
1-15. (canceled)
A seal arrangement for a turbine engine to seal a gap between a rotor and a stator, having a first sealing body assigned to the stator and having a blade-shaped second sealing body assigned to the rotor co-acting with the first sealing body, wherein the first sealing body has a main body and a porous wear component and wherein the main body and the wear component have a graduated material composition.
A method for manufacturing a sealing body for a seal arrangement, wherein the sealing body has a main body and a porous wear component, comprising the steps of:
- preparation of the main body;
- preparation of the porous wear component;
- bonding the main body and the porous wear component;
- and
- calorizing and/or chromizing of the bonded main body and porous wear component.
A seal arrangement for a turbine engine, comprising:
- a first sealing body;
- and
- a blade-shaped second sealing body engageable with the first sealing body;
- wherein the first sealing body includes a main body and a porous wear component and wherein the main body and the porous wear component have a graduated material composition in a surface area that includes a ferrous alloy or a nickel based alloy, and aluminum and/or chromium in a range of 15-35% by weight.
A method for manufacturing a sealing body for a seal arrangement, comprising the steps of:
- bonding a main body of the sealing body to a porous wear component of the sealing body;
- and
- calorizing and/or chromizing of the bonded main body and the porous wear component such that a graduated material composition results in a surface area of the bonded main body and the porous wear component that includes a ferrous alloy or a nickel based alloy, and aluminum and/or chromium in a range of 15-35% by weight.
Dependencies are inferred from the claim text.