Engine Seals TRIZ Cases

Wedge-shaped gap covers move outward as ring segments wear, limiting leakage and stress in high-pressure piston cylinder seals.

Unequal V-spring leg lengths redistribute seal biasing force to lower interface temperature, reduce lip lifting, and maintain sealing force.

An elastic bent sealing lip and tapered body keep a through-hole plug from backing out under internal pressure while maintaining sealing integrity.

Spiral main and auxiliary seal lips return leaked grease at low shaft speeds while blocking foreign matter and reducing wear in gear reducers.

Multiple convex rings and groove walls raise sealing pressure to block air and water ingress in outdoor LED display assemblies.

A stepped backup ring balances easy fitting with stable plunger seal support, reducing friction, deformation, and seal abrasion in high-pressure pumps.

A reversible high-pressure cylinder uses alternating sealing and load-bearing end surfaces to prevent mis-assembly and extend liquid jet pump service life.

A heat-activated adhesive edge seals vehicle openings without latches, simplifying manufacture while improving retention, cleanliness, and corrosion protection.

A cantilevered flexible arm supports the seal element to maintain sealing across misaligned rotating structures and reduce fluid leakage.

Crown-arranged depressions create a centrifugal barrier that repels contaminants, preserving bearing sealing while lowering friction torque.

A full-surface dielectric coating lets a gasket stay thin while improving electrical isolation, chemical resistance, and high-temperature sealing.

Machined corrugations in a thicker gasket core improve load bearing and compressibility, helping flanges seal despite misalignment.

A casing bypass passage redirects shroud leak flow toward the stator region to cut vortex mixing, secondary flow, and turbine energy loss.

Integrated 3D-printed coolant channels cool the stuffing box, cut friction heat, and avoid leakage points from complex machining.

An adaptor and restriction piece free the collar from O-ring groove constraints, enabling flexible secondary seal placement in less space.

A stiffer bonded coating on both sides of the secondary seal limits gap extrusion under high pressure and temperature, improving seal reliability.

A conical annular gasket and downholder create a gap-free, replaceable sensor seal that meets hygienic process connection needs.

A porous matrix built into the seal replaces springs or bands, tuning sealing force while cutting leakage, weight, noise, and complexity.

Hermetic upper-lower housing, sealing water bladders, and thermal control protect electronics while enabling real-time water pollution alerts.

A lever-linked proximity sensor controls cutter activation in a surgical robot end effector to prevent accidental triggering and improve manual precision.

A brush secondary seal closes gaps in cantilevered hydrostatic seals, cutting leakage while adding damping and limiting friction.

Fine-groove oil-repellent and oil-film surfaces help strain wave gear seals block lubricant leakage while reducing seal wear.

Flat planar tongue-and-groove interfaces stop seal segment jack-knifing while fluid pressure drives radial expansion for effective sealing.

An inlet-linked equalizing pressure space cuts seal pressure differential, reducing wear, pulsation, gas loss, and oil consumption.

An inner and outer member sandwich the seal to reinforce a sintered bearing, block fluid exposure, and prevent leaks.

A sealing member at the charging handle-receiver interface blocks discharge gas blowback into the shooter's face without hindering handle operation.

Integrated gutters and sealing fingers redirect fluid and block debris at gearcase interfaces to reduce lubricant leakage and seal failure.

Radial restraint between the groove and snap ring strengthens roller bearing seal fixation under compressed air and improves sealing durability.

Grooves formed on shaft-side seal ring contact surfaces create multi-port flow paths without added axial length or through-hole accuracy issues.

Different seal clearances and runner materials cut oil leakage, wear, and runner deflection in turbine bearing compartments.

A dual-region sealing member covers the vent port to limit ink evaporation while preserving atmospheric pressure for stable ink supply.

Offset flexible seal segments create a tortuous airflow path that maintains contact under radial and axial displacement to limit hot gas intrusion.

An amorphous layer that flows at 200-600 C fills fire-seal cracks, improving high-temperature durability and oxygen barrier performance.

Expanded steam is routed between a brush seal and downstream labyrinth seal to limit seal heating while keeping leakage losses low.

An integrated C-ring kammprofile gasket maintains sealing under flange deflection while reducing turbulence and over-compression.

A Peltier element harvests seal temperature differences to power rotating sensors, enabling real-time seal monitoring without cabling or batteries.

Segmented hydrodynamic pads and a recessed inlet create correcting forces that stabilize the fluid film under shaft taper and reduce leakage.

A flexible Y-shaped aircraft seal absorbs fairing-to-wing movement, removes sealant, cuts weight, and simplifies panel maintenance.

A restrained seal and coaxial pusher let engine components be pushed through interference fits for non-destructive press-fit removal.

An integrated bush seal uses an armature and elastomeric lips to cut suspension friction while improving contaminant exclusion and maintenance.

Labyrinth fins and a brush or rope seal create an intermediate pressure mixing zone that reduces wear, vibration, and thermal gradients.

A third sealing lip and rigid metal shield stop high-pressure hot water ingress, helping food shaft supports pass IPx9k cleaning tests.

A MEMS-based microsystem detects seal temperature, pressure, and humidity early, allowing pump speed adjustment to prevent dry-run overheating.

A flexible fastening element and modular seal help agitator ball mills handle shaft movement, vibration, and tolerances with less leakage.

A pressure-driven O-ring and collet grip reaction vessel probes evenly, preventing deformation while allowing adjustable insertion depth.

A rigid-flexible actuator ring locks seal position while absorbing axial variation between the lockdown ring and wellhead housing.

Pressure chambers and an elastic seal element adjust labyrinth clearance in turbomachines to cut leakage while avoiding contact damage.

A ceramic seal seat insert on the rotating shaft face cuts premature seal wear while maintaining sealing pressure in gas turbine engines.

Floating rings and labyrinth sealing cut nitrogen use, resist dust ingress, and maintain sealing under blast furnace pressure changes.

A rotating cover seals the bearing outer ring during washdown while tolerating shaft misalignment and improving cleanability.