Engine Seals TRIZ Cases

A resin frame with an extended part moves against pinching forces from a weather strip and metallic stiffener to accommodate thermal expansion.

A single gasket seal uses protrusions to route gas through a mass spectrometer membrane.

Segmented inclined surfaces and V-shaped concave portions control oil film formation to prevent torque increase from wear.

Non-contacting dynamic seals define secondary flow cavities to create hydrodynamic films that reduce forward thrust load on gas turbine bearings.

Elastic sealing sleeves compress radially against screws to prevent dust ingress, resolving deformation issues in existing designs.

A slidable coating layer on a syringe gasket provides stable sliding performance without lubricants.

Submicron parallel grooves on sealing faces generate dynamic pressure to reduce leakage and improve startup lubrication.

Pumping ring creates axial flow to cool sliding rings, eliminating insufficient discharge thrust and inefficient circulation.

Composite rubber gaskets solve universal fit issues by combining dense attachment portions with compressible sealing bulbs for varied truck beds.

Twin-sheet thermoforming creates encapsulated air pockets within foam sheets, eliminating complex manufacturing steps while reducing material weight and cost.

Inclined drain grooves in a segmented oil scraper ring enhance gravitational discharge, reducing system oil consumption.

A valve stem seal uses a metallic ring and stop ring to secure the assembly.

A phosphor-containing film uses discretely disposed phosphor regions separated by an oxygen-impermeable resin layer to maintain luminance.

Paired flexures bias against each other to absorb vibration energy, eliminating dust-clogging grooves while maintaining seal clearance.

Segmented seal rings with spring-loaded free ends eliminate leak paths during axial movement and rotation.

A crimped flange structure holds a thin sealing element to minimize wear while maintaining effective sealing properties against the rotary shaft.

Elastic-biased resin seal ring maintains contact with rotating casing to block mud intrusion without increasing frictional loss.

Hybrid weave and non-crimp fabric plies resolve tri-axial braid delamination by adding oriented fiber tows for improved impact resistance.

A valve block assembly uses pneumatic pressure to hold an o-ring in a channel, enhancing sealing reliability within compact fluid handling components.

Segmented primary ring shell minimizes bending stresses and leakage in high-temperature corrosive environments.

An annular seal member abuts a conical groove bottom to create line contact pressure against an inner peripheral wall.

Bosses limit gasket compression in entryway spacers, preventing water infiltration and extending seal lifespan.

Integrated door seal conceals painted joint surface while maintaining drainage capacity through strategic hole placement.

Mechanical spring pre-load replaces oil pressure to eliminate complex venting and multiple seals while maintaining uniform sealing pressure.

Seal assembly bridges gaps between fixed wings and moving flaps, preventing drag penalties during deployment.

A labyrinth seal uses a bent tip to redirect leakage flow upstream, creating recirculation that reduces the effective gap between components.

An inclined seat surface and dual hill curvature distribute strain in a rubber gasket, preventing breakage at high compression and collapse at low rates.

A belt molding design uses a stepped surface to hide resin sink marks and improve appearance.

A vehicle sash cover assembly uses a rubber spacer cap to surround the mounting projection and prevent direct contact with the door panel.

Alumina ceramic insulating coating with controlled titanium oxide content prevents electrolytic erosion in rolling bearings.

A self-sealing fixing element integrates a moisture-curing sealant layer and a breakaway barrier to form an immediate liquid-tight joint upon installation.

Chambers between the intermediate bushing and outer sleeve equalize fluid pressure, preventing annular gap widening under high operating loads.

Replacing sulfur with quinoid crosslinking in foamed rubber eliminates metal corrosion risks in electric vehicle components.

Undulated panel brackets guide movable seals along roof flanges, reducing component complexity and preventing seal damage during mounting.

Varying radial clearance between seal fins manages pressure distribution, reduces bearing load, and extends component lifespan.

Recesses on the seal cover and collar allow simplified machining while a set plate positions components, avoiding complex engagement projections.

A retaining ring fastened to a cylindrical casing secures the pinion shaft bearing.

A retaining tab mounted to an annular ring engages a diffuser case inner wall to prevent snap ring dislodgment under high temperature stress.

Slanted communication holes on a master cylinder piston enable sequential fluid discharge, resolving residual pressure and delayed braking release.

Hydraulic fluid centrifugation maintains annular seal contact on coaxial turbomachine shafts, preventing thermal divergence and wear.