Engine Seals TRIZ Cases

Concavities on secondary plates increase apparent plate thickness at bead positions, improving sealing properties without adding shims or assembly complexity.

Strategic positioning of circumferential and axial cuts in an injection molded slide ring isolates surface defects, preventing leakage channel formation.

Undulating wire reinforcement prevents weather seal collapse and kinking around tight corners while preserving continuous forming capabilities.

Relocating the containment groove from the shaft to a magnetic sleeve prevents fluid leakage while maintaining rotatory shaft strength.

Cushioning sections absorb manufacturing errors while nested locking prevents vibration-induced detachment in the side seal assembly.

Door panel sealing lip extends downwardly to contact the weather strip outer edge, preventing water entry gaps between the glass run and the vehicle cabin.

Conical legs anchor the gasket in corrugations, resisting frictional dislodgement while maintaining a reliable seal.

A photocurable resin composition cures rapidly using a dual photoinitiator system to form durable seals.

Laterally spaced pockets on the piston skirt generate turbulence from working fluid pressure, eliminating lubricant leaks and reducing frictional wear.

Asymmetric coating layers on a mechanical seal ring base body counterbalance thermal expansion differences, preventing distortion and extending running time.

A surface-treating agent comprising a lubricant filler and an adduct compound applied to vulcanized rubber oil seal lip portions.

A colored door seal uses HSB color values to create high contrast with the rail vehicle door leaf.

A resin coating film on a metal seal case allows O-rings to slide smoothly in an axial direction.

Interconnected pneumatic cylinders intensify gas pressure, maintaining reliable barrier fluid flow during compressor startup and low-feed conditions.

A weather strip extension section sits between a door mirror and the sash surface to secure the seal without extra clips.

Segmenting the mounting structure allows replacing hydraulic cylinders in retractable thrusters without full system disassembly, reducing dry dock time.

A reciprocating heat engine uses a hot cylinder head and cold cylinder to maintain high thermodynamic efficiency while enabling durable piston sealing.

Asymmetric sealing ring groove design reduces maximum tensile stress on O-rings in shock absorbers.

Segmented seal design applies local quality principles to balance durability against sealing effectiveness, preventing water and debris ingress.

Secondary sealing ring prevents leaks from incomplete solvent film coverage in thermoplastic pipe joints.

A vehicle door seal assembly uses a movable trim web to reduce internal stresses and maintain optimal sealing performance.

A liquid heat sink interface uses a sealed cavity and gasket to hold thermal fluid for consistent contact.

Asymmetric projections on an elastic sealing member match specific cutouts to prevent mounting errors and ensure proper orientation.

Elastomer seal with variable shape and side strips prevents tilting and pinching during clamping.

Injection molded elastic members seal MEA frames to prevent cross-leak gas loss while protecting fragile diffusion electrodes from mechanical damage.

A clamping saddle groove with a perpendicular inner cheek maintains constant cross-sectional area for uniform seal expansion.

Thick central region of flexible band expands under pneumatic pressure to seal high-pressure gases, preventing extrusion without complex mechanical structures.

A rotary seal uses compression rings to isolate the fan shaft from heat and chemical transfer.

Circular sealing ring with intermediate pin constraint prevents relative rotation, eliminating non-uniform wear on squared seats under thermal stress.

Hollow frustum-shaped sleeve surrounds micromechanical pressure sensor component laterally to provide structural protection.

Cutting edge seal ring creates dynamic labyrinth barrier to prevent debris entry and extend service life without complex multi-lip structures.

A sensor module assembly integrates a lock and computer to secure external sensors on vehicle roofs.

Varying diaphragm stiffness equalizes pressure loads and reduces wear, addressing finger gap shifts caused by centrifugal growth in gas turbine engines.

A nickel-based alloy seal ring with controlled iron and silicon content enables precise machining of cylindrical bodies.

An oxide CMC member with low thermal conductivity shields the elastomer seal retainer from high engine temperatures, preventing thermal failure.

Flexible engagement portion inserts into guide rail groove to position blind cover, reducing installation complexity and part count.

A fine fiber filter media comprising a thermoplastic polyurethane and nylon blend resolves mechanical stability limits in extreme temperature environments.

A dual dust seal system uses a flexible lip to suppress fine particle invasion while urethane scrapes adhered debris.

Blending polysulfonamide with polyoxadiazole fibers in spun staple yarns minimizes flame shrinkage while maintaining thermal protection.

Arc-shaped lip packings stabilize reaction force characteristics by preventing oil film shortage and gas leakage during compression cycles.

A multi-layered gasket design uses plastic deformation of wave portions to adapt to engine conditions.

A detection device measures sealing agent volume in a dynamic seal circuit to assess mechanical wear status.

A Wankel engine apex seal uses a spring with distinct axial and radial action portions to bias the seal member against the rotor body.

Composite yarns with controlled limiting oxygen index and flat ratio resolve the trade-off between flexibility and tensile strength in gland packings.

A tubular connection structure uses a clasp lever and stirring lever to securely fasten tubes.

Dual motor actuation extends and retracts a flexible cover for pickup truck beds.

Controlled axial clearance dictates leakage in a leaf seal, resolving the trade-off between blow up control and manufacturing tolerance sensitivity.

A resilient seal washer bends outward under pressure to enable lubricant replenishment and discharge.

A co-extruded unfilled polymer support layer bonds to functional PTFE filled material to create a robust thermoplastic seal ring structure.

A hydraulic cylinder bearing houses a through passage that directs operating liquid flow, reducing resistance and preventing stroke narrowing.