Engine Seals TRIZ Cases

Pre-pressing tools hold a spherical viewport window in place during pressure ring removal, enabling faster in-situ sealing ring replacement.

A vented bellows shields the power tailgate actuator from dirt and moisture while draining trapped water to prevent corrosion.

Radially movable seal shoe and secondary seal segments cut cooling air leakage while maintaining clearance without fatigue-prone springs.

Offset-slot finger seals and an arc-shaped bridging segment cut leakage at seal seams despite thermal deflection and pressure loads.

Circumferential static pressure grooves feed sealed fluid radially to balance the fluid film, limiting cavitation and wear across wide shaft speeds.

An integrated seal lip, side lip, and projecting portion maintain surface pressure across positional variation while avoiding sticking and leaks.

A bellows dust cover adds a flange-covering sealing portion to prevent body contact, improving durability and sealing during ball stud motion.

Axially interlocking teeth and a retaining ring secure a turbine air seal while cutting axial space, radial space, and replacement complexity.

Split clamping collars create interference-like static seals on roller shafts to prevent lubricant leakage under abrasive loads and harsh conditions.

Curved or spherical segment joints maintain sealing contact under shaft misalignment and motion, reducing leakage in gas turbine seals.

A biased seal assembly in the piston groove maintains cylinder sealing, enabling compact gas-spring fastener driving without external air.

Moisture-variable membrane layers let one joint sealing tape balance driving rain resistance, vapor diffusion, insulation, and easy installation.

An embedded signal line exposes at the wear limit to automatically indicate machine tool scraper lip wear and avoid manual inspections.

Embedded magnets pull brush-seal filaments toward the rotor to maintain sealing during clearance changes, cutting leakage and rub risk.

Woven ceramic composite seal plies use bends and rounded portions to keep turbine sealing compliant under compressive loads and high heat.

A spacer layer controls embossment compression in a multi-layer steel gasket, preserving gas-tight sealing through engine thermal cycling.

A welded stopper with annular and inclined parts keeps the rotary ring aligned and prevents gasket slippage under high fluid pressure.

A prepreg rod molded, vacuum-debulked, and cured into an aircraft ring gasket cuts waste and machining while maintaining tight tolerances.

An escape space beside the steering column seal absorbs thermal expansion, preserving compression, preventing leakage, and easing cover fitting.

A sliding manifold connector accommodates cartridge expansion, maintaining face-seal integrity while reducing block stress and fit issues.

A split ring seal with a composite piston and spring maintains gas-flow separation between translating annular ducts while limiting wear and leaks.

A non-contact seal carrier layout removes shoe-to-aft-plate friction, reducing wear and binding while preserving tight rotor-stator gaps.

A multi-lipped elastomer gasket creates a tool-less intake tube to airbox joint that stays sealed under engine vibration and movement.

A rotating debris-breaking passage protects heavy-vehicle shaft seals from entanglement, wear, lubricant leakage, and downtime.

A pressure buffering chamber protects the magnetic fluid seal from pressure differences, preserving sealing durability under shaft misalignment.

Magnetic puller loading replaces springs in a rotary face seal to keep seal force stable, avoid eddy currents, and extend service life.

Varying cell size, wall thickness, and contour along the rub path cuts rotor-stator leakage while maintaining radial stiffness.

Chamfered surfaces and angled lips keep a spin-on filter gasket seated during installation, improving seal reliability despite tolerances.

An asymmetric annular lip seal maintains contact pressure without a thrust ring, reducing lubricant leakage and extending track chain joint life.

Retention clips bite into the housing and perimeter seal to stop seal disengagement during re-entry and preserve contamination-free sealing.

Recesses in the inner link plates and a roller groove create a labyrinth seal that limits lubricant leakage and blocks foreign matter.

Peroxide-vulcanized HNBR with silica and silane improves mechanical seal resistance to long-life coolant while preserving cold flexibility and compression set.

Interlocking hooks and stoppers let two sealing members be handled as one assembly while holding axial spacing and blocking foreign matter.

Variable-area cushioning grooves and movable packings fine-tune fluid discharge at stroke end for smooth deceleration and stable start-up.

A modular double-flange pipe passage uses graphite gaskets and intumescent tape to simplify boat installation while keeping bulkheads fireproof and watertight.

Asymmetric diameter regions on the piston boot guide correct cylinder mounting and suppress front-back assembly errors.

A spring-loaded bristle pack and dual-surface backing plate reduce blow-over, deflection, and leakage in compact turbine seal cavities.

Embedded magnets help an aircraft nacelle fire seal maintain contact under large pressure differentials while allowing smaller, bend-resistant seals.

A split-ring damper in the heatshield inner groove dissipates vibration by friction, reducing seal interference and preserving thermal protection.

A unitary elastomeric seal uses multiple legs and angled walls to seal three enclosure surfaces in one channel, cutting space and cost.

Offset square O-rings in a retrofit tank adapter collar replace pipe tape, create a positive stop, and prevent leaks from overtightening.

A rigid insert and vulcanized seal let damaged hydraulic gaskets be replaced individually without scrapping the full plate.

An aft tooth spaced near the shoe end stabilizes seal flow jets, improves damping, and reduces vibration in hydrostatic seals.

A water-injected labyrinth seal creates a liquid barrier on a reciprocating piston rod to cut gas leaks, cost, and contamination.

Multiple convex contact points and gripping fins improve groove conformity, resist seal movement, and maintain pressure differentials.

An inert-gas purge channel lets a single O-ring seal high-temperature vacuum chambers while limiting oxygen permeation and defect migration.

A reinforced elastomeric gasket with embedded conductive mesh seals aircraft fuel tank access doors under flight loads while reducing leakage and downtime.

A central sensor behind the separating membrane tracks process temperature in real time while staying isolated from transmission fluid.

Openings in the rack housing hole cover expose the seal before mounting, enabling attachment checks while maintaining sealing and detachment resistance.

Tapered inner and outer seal assemblies keep scraper hitch bearings sealed while self-lubricating liners cut wear, grease maintenance, and contamination.