Engine Seals TRIZ Cases

Separate inner and outer sealing lips block water intrusion while reducing fastening friction for smoother fixture rotation.

A widened groove and eaved pressing member hold seal material without twisting, extending seal life and preserving chamber sealing.

A pressure-responsive sealing lip deforms with bearing pressure differences to limit lubricant leakage without excessive seal wear.

Bypass flow channels around a gas turbine piston seal ring create a symmetric leak path that reduces thermal hotspots and hardware distortion.

A flexible ring gasket creates a liquid-tight enclosure seal without rigid parts or torque-dependent fastening, easing assembly and maintenance.

Annular grooves on the side lip retain lubricant evenly to suppress depletion, reduce wear and noise, and maintain sealing durability.

A flexible ring gasket seals enclosure components through radial contact, reducing torque sensitivity, weight, and assembly inconsistency.

Stepped deformations on the seal ring increase load ring grip to stop spinning, reduce leakage, and keep debris out.

A floating stator and labyrinth seal create a fluid barrier that preserves sealing during shaft misalignment and balances axial forces.

An elastic sealing element isolates the pressure supply opening despite assembly tolerances, preserving accurate crash pressure sensing.

A fiber reinforced polyimide seal is compressed, heated, and cured to stop leaks at 600-750°F while allowing component reuse.

A diurea-thickened grease balances low rotational torque with leakage, water, and muddy water resistance in hub bearing seals.

A disposable infusion cartridge uses passive pressure venting and reusable pump feedback to prevent overpressure, detect occlusions, and keep delivery sterile.

Memory-mapped hardware FIFOs offload queue management from processor cores to cut latency, avoid cache pollution, and protect packet integrity.

An annular notch and mating backup ring trap abrasive debris in hydraulic cylinders, reducing groove damage, leakage, and seal failure.

Two-stage hot pressing of rope-like rubber preforms stabilizes annular seal joints, suppressing outer-layer cracking and core protrusion.

A resilient securing member uses negative pressure to tighten the seal, easing breast pump tube assembly while resisting wear and misalignment.

Multiple insert prongs support the seal heel and lips to spread pressure loads, cut strain, and extend seal life under vibration.

A spring-biased rotary shaft seal maintains a continuous barrier despite shaft runout and axial misalignment, reducing leakage and maintenance.

A laterally movable rod seal base and overlapping bushing keep oscillating rods aligned, cutting wear, oil leakage, and gas ingress.

Higher-radiopacity markers let seals and O-rings be checked by X-ray for rolling, twisting, or damage without disassembly.

Circumferential and radial seal-face channels introduce pressurized fluid to cut startup friction, wear, and leakage in mechanical seals.

A sliding mating collar lets a gas conduit expand axially in a hot liquid seal, reducing joint stress while keeping gas flow stable.

Mechanical expansion of an elastic sealing unit improves electrochemical masking, resists thermal variation, and reduces solution infiltration.

Temperature-based heat flux modeling estimates mechanical seal frictional power, enabling precise wear assessment without complex direct sensors.

Separated inlet and outlet channels redirect seal medium to sustain lubrication, cut leakage, and improve friction at high speed.

A low-density outer seal runner section offsets thermal and centrifugal growth to hold turbine seal gaps and reduce lubricant leakage.

Tuned mass damping in a turbomachine face seal isolates radial vibration, preserves axial gap, and prevents catastrophic rubs and wear.

A negative thermal expansion insert offsets elastomer shrinkage at cryogenic temperatures to keep biologic and pharmaceutical container seals sterile.

A chamfered seat geometry and bellows spring constrain radial motion in a dry carbon face seal to prevent axial gap opening and wear.

An integrated humidity and temperature sensor in the support cover detects wash-fluid ingress early, cutting inspection time and remounting risk.

An undulating breather tube extends the ESP seal flow path to equalize pressure while restricting wellbore fluid migration into the motor.

A dual-lip sealing ring keeps dirt and moisture out while the secondary lip bends back to relieve wheel hub overpressure.

Tapered inner gasket surfaces create deformation margin during press-fit, preventing flow passage protrusion while maintaining sealing and fluid replacement.

A polymer-dispersed carbon film keeps dry sliding friction stable by suppressing wear debris bonding without relying on transfer film formation.

A silicone-based seal compound with vitreous, intumescent, and fiber additives resists flame penetration without costly ceramic fabrics.

Grooved sliding surfaces draw air into the sealing gap through an integrated passage, avoiding external barrier gas hardware and added seal complexity.

A limiting pin and worm gear let the ball joint switch between 2-DOF and 3-DOF modes for stable spatial positioning and free rotation.

A clamped plastic seal between the hub and flywheel ring prevents fluid escape while cutting the cost and time of elastomer-metal sealing.

A compressible fairing seal with a rigid stop maintains waterproof sealing across varying gaps while allowing panel removal without damage.

A compressible fairing-panel seal with a rigid stop maintains sealing across variable gaps without polymerization or full compression.

Centrifugal force and conductive sealing elements maintain shaft-to-housing conduction, suppress EMI, and retain lubricant in compact rotary assemblies.

An eccentric gap, conveying grooves, and outlet recesses boost cooling fluid flow in a mechanical seal to limit overheating and wear.

A notched buffer seal and backup ring shield hydraulic cylinder grooves from abrasive contaminants, reducing leakage, wear, and seal failure.

Pressurizing a sealed intermediate chamber, not the full gearbox interior, improves trench cutter sealing under high external pressure and abrasive media.

A hard inner seal with an elastomeric outer seal improves plunger packing stability, reducing wear and fluid leakage under high pressure.

A zippered flexible bellow lets coupling covers be replaced without full disassembly while maintaining dustproof and fluidproof sealing.

Overmolding the gasket into a grooved double-door flange cuts delicate seal assembly time and lowers leakage risk in clean room transfers.

Restrainer features in grooved pipe couplings block seal trapping during tightening, improving compression uniformity and seal life.

An oval-preloaded annular seal with convex and concave faces deforms in the groove to limit leakage, wear, and fluid intrusion in high-power pumps.