Engine Seals TRIZ Cases

An injector-fed seal reservoir keeps lubricant at the stanchion in upright bicycle forks, cutting friction, wear, and contamination.

Segmented annular seals create a lubricant chamber around wind turbine pitch bearings, reducing leaks and simplifying inspection and replacement.

Compressed working fluid shifts the bearing housing to keep screw shaft axial rigidity stable during thermal expansion without external hydraulics.

An aqueous silicate-polymer sealant hardens in air or CO2 to avoid toxic solvents while improving adhesion, durability, and easy application.

A vented silica seal and porous ceramic core release refill bubbles and keep e-liquid channels clear for smooth atomization and smoking.

A tubular sealing boot creates an open channel around the guide pin to block dirt and corrosion while preserving caliper travel and low friction.

Wavy side walls in dynamic pressure grooves create multiple pressure points to separate eccentric sliding surfaces and cut friction.

Flexible axial lips let the seal ring tilt and float with shaft deflection, maintaining sealing while reducing friction and wear.

Staggered sealing lips maintain rotary shaft contact under wear and misalignment while deflecting contaminants without a separate spring.

Openings in the rubber-covered metal core stabilize minute protrusions, enabling fluid lubrication, low torque, and rust prevention.

Deep and communication grooves stabilize fluid pressure and flow, enabling smooth bidirectional sealing from low to high rotation speeds.

A vacuum chamber cuts breaker noise while segmented sealing and airflow cooling prevent lubricant leakage and overheating.

Recessed spiral grooves use centrifugal force to feed oil between sliding surfaces, preventing poor lubrication on slopes and at high speed.

Electromagnetic radiation melts in-situ geological material to fill porosity and create a durable wellbore seal without cement degradation.

Open-ended lubricant channels recirculate flow through a slotted guide ring to cool contact zones, reduce wear, and prevent slip-stick.

Magnets activate ferromagnetic fluid seals to isolate the logging region during tool motion, improving signal-to-noise and data validity.

A convoluted seal body, spring-energized lip, and cross-hole inner ring maintain shaft sealing under misalignment and dynamic runout.

A driven seal chain replaces multiple latches to improve pressure chamber sealing, reduce leakage risk, and simplify aging test operation.

Finger springs preload a vane face seal across CMC wall gaps, compensating dimensional variation to reduce wear and maintain sealing.

An L-shaped wear sleeve forms a metal-to-metal seal in the pump fluid end to limit seal wear, erosion, and fatigue crack damage.

A flexible arm and rigid joint portion absorb thermal and vibration stress to keep rocket engine pipe seals tight with lower cost.

Elastic axial projections in the sealing element absorb height tolerances, simplify damper assembly, and maintain fluid sealing at high temperatures.

A porous PEEK coating helps sliding rings resist hydrogen sulfide corrosion, wear, and thermal stress while maintaining turbomachinery sealing.

Hydraulic piston bias replaces spring support to keep face seals intact under high-pressure CO2 differentials and prevent fluid cross-contamination.

A variable-spacing recirculation structure returns leakage oil in both shaft directions, improving high-speed sealing and reducing wear.

CTE-graded multilayer edge seals and laser heating reduce thermal stress and cracking in vacuum insulated panels while preserving hermeticity.

Interconnected spring ligaments let a turbine piston seal expand for installation and collapse into a channel to prevent asymmetric leakage and loads.

Movable seal members and a partitioning member reduce friction, stress, abrasion, and cracking as grooves shift under thermal expansion.

A harder spring element behind a softer seal body compensates wear, maintains sealing pressure, and allows easy cleaning and replacement.

Distributed back pressure auxiliary lips stabilize valve stem oil leakage while reducing seizure risk and excess oil entry into the combustion chamber.

A cushioning member between the retainer and seal face damps torque transfer to cut backlash, wear, and jerk in variable-speed seals.

A soft-hard composite seal keeps robot joints moving smoothly while blocking dust and rainwater to reduce wear and extend service life.

A trap-equipped deep groove recovers sealed fluid to curb leakage while feeding the sliding surface for stable lubrication in rotary seals.

Centrifugal oil flow cools the carbon seal seat face through a plenum and apertures, improving heat dissipation while keeping cooling uniform.

A support element pretensions the elastic seal in a single-piece housing, cutting assembly effort while handling heat, pressure, and speed.

A pressure-driven support member closes the shaft seal gap during dry gas seal failure to contain process fluid until shutdown.

Alternating seal-lip projections pump leaked oil back in both shaft rotation directions, reducing high-speed leakage and stabilizing sealing.

A ribbed webbing seal with dual annular inserts maintains compression and sealing integrity under high pressure and maximum offset.

An internal overflow chamber stabilizes pressure and absorbs excess sealing material to prevent bubbles and incomplete moulding in pump seals.

Intermeshing gasket segments use through-openings to absorb displaced material, reducing warpage, jamming, and positioning errors.

Machining the inner surface of an injection-molded fiber-reinforced sealing ring removes the injection skin, improving tolerances and friction.

Alternating lip projections pump leaked oil back in both shaft rotation directions, helping high-speed rotary seals prevent reverse-rotation leakage.

A lap joint member and interior support spigot let aircraft cargo door seal sections be replaced individually while preserving pressure sealing and EMI resistance.

Sinusoidal swirl ribs and a ring coil spring help a shaft seal maintain bidirectional sealing while limiting friction and resisting particles.

Offset flow-section profile grooves improve lubricant return, cooling, and seal life in high-speed, high-pressure shaft arrangements.

A channel-guided template controls sealant bead route, volume, and placement on machine parts for faster, more accurate field repairs.

A flexible oil retainer forms a labyrinth seal and oil return path to curb wind turbine main shaft leakage under eccentricity and runout.

A flexible oil retainer forms a labyrinth and oil recycle path to limit wind turbine main shaft bearing leakage under runout and eccentricity.

A recessed flange and mating extension center and compress the seal to eliminate dead space and contamination in powder handling.

A graphite film on a hard sliding base cuts friction in dry contact while resisting foreign matter and reducing galling.