Engine Seals TRIZ Cases

A U-shaped sealing ring uses dual axial sealing edges and a groove-covered joint to bridge larger tolerances, cut assembly force, and resist extrusion.

A plastic housing element with radial and axial flanges holds a separate sealing body to cut cost while maintaining durable static sealing.

An elastomer-embedded conductive fiber fabric links concentric machine elements while sealing out contamination and maintaining conductivity.

An integral sealing protrusion in a U-shaped groove improves diaphragm pump sealing and prevents leaks during fluid pumping.

Integrated U-shaped heat rods and fan cooling cut shear-driven magnetic fluid seal heating without external cooling hardware.

A tapered inner circumferential surface prevents press-fit seal deformation, maintains contact pressure, and suppresses fluid leakage.

Axially adjacent dual seals separate discrete aircraft fluid volumes and route leakage to a drain passage for contamination control and inspection.

A retaining member with spring insertion holes prevents vane spring buckling and groove wear in a mechanical seal circulation pump.

A looped metallic seal ring adds four contact points and longer axial span to improve compliance, twist resistance, and sealing under dynamic loads.

Magnetic force separates the seal ring from rotating end plates to cut heat and wear while maintaining intershaft sealing at higher speeds.

Multiple through-holes fed by a back-side storage space equalize fluid pressure at start-up, cutting torque and wear in mechanical seals.

Rigid end rings and a semi-flexible seal body block mud from joint bearings, reducing load buildup and extending bearing life.

A stepped protrusion gasket avoids sealed-air resistance during groove insertion while maintaining side-wall retention to prevent drop-off.

A silicone rubber engine inlet compression seal replaces hard-to-make metallic J-seals to resist cycle fatigue and maintain reliable sealing.

A deformable valving skirt built into the filter seal blocks drain back and dirty-clean fluid mixing while still allowing normal flow.

Reverse inclined and fluid introduction grooves maintain lubrication and dynamic pressure to reduce seal leakage and wear in both rotations.

Circumferential keys lock the seal to its carrier, preventing post-assembly movement that can distort face flatness and cause seal failure.

A thrust collar, dual air bearings, and a labyrinth seal cut rotation-shaft thrust load, enabling smaller support structures in electric turbochargers.

Axial grooves create H-shaped resin cage claws that cut centrifugal deformation, ball interference, and heat in sealed high-speed bearings.

A resilient rolling seal accommodates thermal expansion and pressure-driven movement to prevent cracking and preserve gas turbine cavity sealing.

A radial gap with chamfer and axial undercut constrains coupled seal motion, preventing leaks, wear, and spring overload in dry face seals.

A removable bottom panel and inner cone let this cyclone separator be serviced or retrofitted without removing it from existing piping.

A rigid core with flowable compressible layers creates an even seal across uneven mating surfaces while resisting pressure and leak paths.

Equalizing fire ring contact areas on the cylinder liner and head reduces slip, evens surface pressure, and preserves gas sealing.

A bi-metal intermediate member shifts the seal shoe with temperature to balance rotor clearance, cutting leakage while avoiding seal rub wear.

Flange recesses guide an annular gasket to align pipe axes, cutting guide-ring machining cost and keeping coupling compact for narrow spaces.

A heat-shrinkable hollow seal fits into a joint groove without disassembly, speeding replacement while resisting harsh hygienic washdown.

Magnetic repulsion keeps a floating ring aligned without contact, preserving shaft clearance, sealing, vibration damping, and easier assembly.

Pressurized sealant drives sealing rings inward on a rotary shaft, improving fluid retention and lubrication in a more compact seal layout.

An elastic ring presses a rigid resin wipe lip evenly on a reciprocating ram, reducing uneven wear and lubricant mixing in can body makers.

An embedded optical fiber tracks gasket compression in tube joints, helping maintain seating stress and prevent long-term leaks.

A pressure-energized BOP seal uses lateral wings and raised sealing surfaces to block fluid migration under high well pressure.

A wax-filled fluororesin coating balances oil wettability, surface roughness, and abrasion resistance to lower oil seal friction and torque.

A static seal exposed outside the joint compresses a dynamic seal to block liquid and dust while eliminating bacterial pockets.

An elastic cantilever hook seals the gasketed case gap before full engagement, making waterproof assembly more consistent without precise pressure control.

A pocketed annular seal structure removes crimping and bearing sleeves, cutting assembly time and cost while tolerating radial misalignment.

An integrated elastomeric seal links the fuel gas pipe and pre-combustion chamber, reducing leakage, alignment difficulty, and assembly complexity.

Using an O-ring as both seal and biasing element, this vane pump cuts spring-driven size and assembly complexity while preventing oil leakage.

A folded metal strip seal cuts brush-seal material waste and manufacturing cost while maintaining low leakage, durability, and reduced wear.

An axially deformable annular seal lets a harder member support the bush, improving lubricant sealing while avoiding thicker, costlier track links.

A flange-and-seal thermal insulator lets heater wiring pass through while limiting heat loss and supporting consistent aerosol heating.

A lip seal and spiral scroll create a low-pressure zone at the seal faces, cutting wear, avoiding seal pots, and extending pump seal life.

Three arc-shaped counter surfaces and an integral sealing extension improve fluid sealing, limit leaks, and support efficient vacuum conveyance.

Concurrent knitting of ceramic strands and metal wires creates bulb seals that resist heat, reduce compression set, and avoid burnout.

An annular recess and radial supply groove retain and guide liquid lubricant on rotating sliding faces to sustain lubricity in gas-sealed conditions.

Integrated fluid passages cool a translating gas turbine seal, cutting rubbing heat, thermal stress, and fatigue without a separate cooling system.

A free-floating secondary seal plate slides on a seal shoe rib to preserve sealing under misalignment while cutting heat and material cost.

Neutral gas pressure between dual gaskets compensates tube tolerances and prevents reactive gas leaks in high-temperature furnace connectors.

A reduced face seal balance ratio and oil-guiding seal seat lower axial closing force, heat generation, wear, and oil coking.

Staged vent ports between seal sets recover and recycle leaking process gas, cutting turboexpander shaft losses without tighter clearances.