Leakage Prevention TRIZ Cases

An abradable seal with 1-10 micron pores blocks airflow paths to prevent aerodynamic efficiency losses and blade tip damage.

Sealing element tracks slot geometry between adjacent airfoil platforms to trap cooling air within the engine core.

Electric heating devices on stator parts dynamically adjust rotor clearances to resolve passive control inefficiencies across operating modes.

A slanted and parallel fiber bundle optical sensor detects reflected light intensity to measure tip clearance in rotating machinery.

An aerodynamic seal assembly uses bellows springs and a secondary shoe to maintain a thin fluid film between rotor and stator components.

Elongated pins reduce edge loading stresses on ceramic matrix composite seal segments, enabling high-pressure turbine applications.

Hollow cavity with stiffening ribs reduces nozzle segment flange weight while maintaining structural integrity and sealing efficiency.

A semi-annular seal body with tabs engages a rotatable stator vane to reduce gas leakage between the platform and the moving component.

A radially protruding boss portion extends axially forward from the end wall to structurally support the blade outer air seal.

Series direct acting valves adjust airflow area based on temperature feedback to stabilize heat load and prevent overheating damage.

Variable thickness ceramic plies form cooperating features that restrict gas flow, preventing outer shroud degradation where traditional laminate seals fail.

A steam turbine rotor disk features a dedicated passage redirecting leakage steam to the downstream side.

Three-dimensional weaving creates integrated stiffening elements that reduce hub ratio while maintaining mechanical strength under centrifugal forces.

Purge air holes in angel wing seal flanges create counterclockwise swirls that push away hot combustion gas vortices.

A thermal screen with an insulating cavity delays stator heating to maintain radial clearance during transient operations.

A turbine casing uses a protrusion on the front vertical flange to house a circumferential seal device for tight cross-part joints.

Segmented flow control assemblies meter cool air into specific zones, contracting the case assembly to shrink the gap between BOAS and turbine blades.

Continuous flexible profiles modify inner shroud stiffness at segment junctions, reducing destructive vibratory modes without increasing mass or inertia.

Annular gap with varying radius and labyrinth seals reduces compressed air leakage in gas turbine fluid bearings.