Engine Seals TRIZ Cases

Rows of adjacent depressions in the metallic flat gasket solid bead create a counter bead structure that prevents complete flattening under compression.

A U-shaped glass run features an inner lip and a protruding noise insulation wall to seal the cabin side.

Decreasing groove depth in a spiral pattern pumps sealing fluid to raise pressure, resolving leakage issues across wide rotational speeds.

A replacement sleeve with pre-machined fins installs into a shaft recess using an interference fit to restore the labyrinth seal structure.

Metal gate sections anchor plastic guide webs through passages, resolving the strength versus weight trade-off in vehicle roof mechanisms.

A floating seal assembly applies variable sealing pressure to a rotary valve using independently controlled gas chambers.

Nickel-base single crystal seal expands radially under axial load via negative Poisson's ratio, improving sealing efficiency against rotor surfaces.

Staggered lobe configuration in monolithic seals resolves installation complexity while maintaining fluid-tight thermal insulation.

Fusing filter material to a baseplate eliminates aggressive adhesives and reduces thickness for compact hydraulic installations.

Segmented spline features maintain concentricity during deflection, reducing leakage and radial clearance in gas turbine engines.

Deformable spacers in form-in-place sealant define gasket height, resolving thickness control issues that slow sealing cycle times.