Engine Seals TRIZ Cases

High-radiopacity markers make seals and O-rings visible in X-ray images, revealing rolling, twisting, or damage without disassembly.

A fluoropolymer coating on a high-performance thermoplastic seal improves wear resistance and low friction without sacrificing elongation-at-break.

Flexible ligaments let an axial seal shoe follow rotor motion, cutting friction wear while maintaining tight clearances and low leakage.

Outer-sleeve clamping secures a centrifugal pump cartridge seal with defined force while protecting the shaft surface and easing replacement.

A flat sealing tape and elastic spiral tape secure split housing grooves, easing assembly while maintaining a tight seal without differential pressure.

A spring-expanded gasket with annular seals and suction retention repairs pipe wall breaks from inside the pipe with less shutdown and excavation.

Holders around the rotary shaft absorb adapter torque before it reaches the bolts, preventing loosening and preserving seal fixation accuracy.

A barrel-shaped gasket removes mold lines, burrs, and runner marks to maintain durable sealing integrity without core-based molding.

Vent openings plus a debris-blocking filter equalize seal-cavity pressure and temperature while keeping oil in and debris out.

A movable gland guided by sliding surfaces and a lubricant film maintains piston rod sealing during transverse motion while reducing wear and leakage.

A contact-rim-first insertion approach centers the insert before O-ring compression, preventing seal damage and leaks in polymer bodies.

A coolant-fed bellows piston seal confines hot working fluid above 300°C while reducing gasket wear and maintenance downtime.

Direct flange-to-body connections and radial seals shrink pipeline repair couplings while containing fluid and simplifying live-line installation.

A protective coating on the O-ring preserves sealing during hot acid leaching, enabling fuller binder removal and more reliable PDC cutters.

A spring-driven dual-lip seal wipes debris from a fluid level sensor and prevents water traps, improving sensing accuracy in varied mounting orientations.

A reversible sealing element expands after rear-side insertion to seal anchor rod passages and prevent concrete leakage in one-sided formwork.

Irregularly dispersed exfoliated clay minerals help gaskets maintain sealing and resist oxidation up to 600°C under repeated heating.

Internal fins and fluid inlets pull cooling flow through a dynamic seal rotor to limit interface heat distortion and keep sealing stable.

Dynamic crosslinking with a high-temperature polyamine helps fluororesin compositions retain fuel barrier performance while lowering tensile elasticity.

A two-part seal with angle and clamping profiles resists gas turbine heat and vibration while adapting to position changes.

Restrainers and elevated protrusions in a grooved pipe coupling prevent seal trapping during tightening and maintain uniform compression.

A benzimidazole antioxidant and ether ester plasticizer balance helps EPDM rubber resist mold contamination without losing heat resistance.

A bonded amino-modified silicone coating cuts sliding resistance while limiting leakage, dust emission, and process complexity.

Segmented L-shaped seal sections with a wave spring maintain contact under turbine deflection and heat, reducing deformation and wear.

Biased random dimple bands and land portions improve fluid film uniformity, reduce torque, and maintain sealing across operating conditions.

Stress-concentrating grooves or cavities let a metallic gasket seal high-purity fluid joints with lower axial force and steadier leak resistance.

A deformable non-adhesive gel sealant uses non-halogenated fire resistance to meet aircraft smoke toxicity limits while sealing variable gaps.

A resin oil seal with Tg above 80°C and metal support rings improves reciprocating shaft sealing under high heat, pressure, and wear.

A roughened adhesive interface lets a flexible pipe seal fit varied pipe shapes while resisting delamination and preventing leaks.

A one-way valve lip and tuned seal edge geometry cut friction peaks from oil pressure changes while maintaining reliable fork cartridge sealing.

Rigid and elastomeric seal elements block steam and metal scale while maintaining shaft sealing under heat, load, and misalignment.

A dual-stage sleeve seal with an inflatable annular gas bag and leak indicator helps foot ozone therapy contain gas and protect users.

An equalizing pressure space feeds leaked gas back to the inlet, lowering seal pressure load, pulsation, oil use, and emissions.

A modular sealing cover for sintering trolleys cuts height, cost, and maintenance difficulty while maintaining flue gas flow and sealing.

A continuous curved flexible seal enables axial insertion between adjacent gas turbine components, reducing leakage and easing nozzle removal.

An elastic bellows and resin sliding ring keep full contact on an eccentric or tilted steering shaft to block dust ingress and noise.

A three-pass liquid agent path stabilizes start and end bead taper, maintains gasket height, and reduces stringiness.

An annular positioner locates the inner case against the bearing ring, preserving axial spacing while reducing seal friction and retrofit complexity.

A viscous sealant plus an inner Newtonian fluid barrier keeps slurry away from the stuffing box, cutting leakage, friction, and seal maintenance.

A spring carrier keeps turbine carbon seal springs in place, allowing seal replacement without full bearing compartment disassembly.

Support rings between retainers and lipseals distribute extreme pressure, reducing wear, leakage, and seal failure in radial sealing assemblies.