Engine Seals TRIZ Cases

Hollow protrusions with side openings reduce compressive rigidity, allowing the door trim upper face to sit lower and increasing design freedom.

Acoustic damper equalizes nonuniform pressure distribution via closed space resonance, reducing combustion gas leakage into the turbine body.

A signal transmitter integrated with a suction roll sealing element detects its position through perforations for automated adjustment.

Segmented protrusions distribute clamping pressure across the cylinder liner, reducing stress variations while preventing combustion gas penetration.

A thermally actuated shutdown seal constricts around a rotating shaft using a split ring and meltable spacer to block fluid leakage.

Stationary seal ring fluid circulation groove creates pressure fluctuations to prevent deposit formation on sliding faces.

A rotating union seal assembly uses spring force to separate surfaces during compressible media flow.

Merged radial and rotational constraints prevent backlash during transport, protecting dry gas seals from damage.

A pillar weather strip with a sub seal and concave channel guides water to a hollow seal part via drainage holes.

A spiral gasket employs a non-iron metal filler member to maintain sealability despite oxidation of expanded graphite at high temperatures.

An interlocking composite seal prevents element separation and rotation under compression while shielding elastomeric components from plasma degradation.

A segmented seal retaining assembly uses a recess and tab structure to secure a flex seal within turbine components.

A mold apparatus produces preformed seals with precise cross-sectional geometry and controlled injection.

A plated sealing system uses exterior and interior plates with O-ring and PIP seals to restrict moisture ingress through vehicle battery enclosures.

A movable wind deflector assembly minimizes aerodynamic gaps by moving the hinge point along a curved track, reducing wind noise.

An electromagnetic actuator displaces a shaft sealing lip radially to ensure reliable separation from the counter-section.

An asymmetric bush design prevents extraneous matter accumulation and oil seal damage by eliminating gaps in the guide bore.

Segmented profile zones and flexible sensor walls enable rapid detection of lateral clamping forces while protecting components from vandalism.

Pre-installed mastic expands via heat treatment to form fluid-tight seals in inaccessible enclosed spaces.

Arcuate seal bodies use lift ramps and elongated projections to generate radially-outward force via fluid pressure.

A quadrilateral seal ring with a tapered sliding surface reduces friction while maintaining sealing contact under fluid pressure.

A vehicle sliding door actuator uses a flat profile section with an integrated cable duct to house the movement unit and coiled cord.

PTFE-lined journal and thrust bearings remove vulnerable grease systems, preventing projectile damage and environmental pollution.

Segmenting the seal into a standard annular element and size-specific casings reduces inventory costs while maintaining manufacturing flexibility.

Threaded coupling adaptor joins electronic sensors to telemetry systems via internal wiring.

A valve gasket employs a frustoconical seal lip connected via a waved surface to resist pressure-induced rotation.

Integrated spring assemblies with built-in stops prevent over-compression of bias springs, simplifying installation of gas turbine engine seals.

A dynamic conformal aerodynamic seal uses magnetic coupling to slide along an aircraft control surface while maintaining a rigid attachment to the wing.

Ground ABCITE powder penetrates tanned skin fibers to resolve the trade-off between softness and abrasion resistance.

Coarse silicon carbide grains within a high-density matrix inhibit crack propagation under thermal shock, ensuring prolonged durability in sliding components.

Composite gasket merges sponge base and intumescent coating to resolve the trade-off between acoustic absorption and fire seal integrity.

A rotatable nozzle liner uses a curved seal with diffusion holes to direct cooling air for thermal management.

A vehicle door mirror base member joins the inner panel to secure exterior components.

Resilient thermoplastic stoppers in a door seal assembly divert air flow from the door cavity, preventing cabin odors and leaks under downward force.

Segmented sealing prevents high friction during wear compensation while maintaining caliper integrity.

A steam turbine sealing system uses a purified barrier medium to create a pressure gradient between the rotor shaft and outer housing.

A tubular seal uses an urging member to axially deform against a frustoconical portion for diametrical engagement.

Tapered gasket loop adapts to large gap variations in pressurized joints, maintaining compression limits to prevent fluid leakage.

Cantilevered finger seals accommodate thermal expansion and contraction of turbine components to reduce gas leakage.

Nested scraper rings maintain point contact with the rod to prevent floating and ensure gas-tightness despite axial tilting.

A metal vacuum seal with a non-metallic jacket improves gas tightness.

Organic microballoons in silicone matrix prevent residue formation that blocks cooling holes.

A seal carrier assembly collapses under pressure to eliminate gaps between the seal and plunger, preventing extrusion failure at 6000 bar.

Gasket tabs engage housing cavities to limit lateral movement, preventing fluid leakage from pressurized side loading.

Disc springs compensate for radial displacements in GRP flanges, reducing leaks and lowering bolt forces.

A segmented seal with a hinged flap rotates to engage adjacent blades and maintain contact under centrifugal force.

A metallic stopper with lower thermal expansion than the resin seal lip prevents axis misalignment at cryogenic temperatures.

Grooved metal gasket traps seal projection at three-surface intersection, preventing corner gaps and ensuring reliable sealing.

Displaceable sealing segments follow guide surfaces on a holding ring to preserve uniform sealing action as wear progresses.

Metal carbide powder in PTFE resin compositions polishes mating surfaces, reducing self-abrasion against rough metals.