Engine Seals TRIZ Cases

A sealing device uses a large-diameter part and labyrinth clearance to block water entry into rolling bearings.

Spiral ring grooves in expandable backup rings engage the well casing to lock the mandrel, preventing rotation and slippage during bridge plug drilling removal.

Hot rolled austenitic stainless steel sheet with optimized oxide inclusions improves workability and fatigue resistance characteristics.

A retention clip with a variable pocket accommodates flange thickness variations, preventing air and water leakage.

A segmented drive shaft seal uses concave-convex fixing rings to prevent arbitrary movement and enhance sealability.

Segmented seal ring pockets buffer oil to reduce friction loss while recess regions prevent excessive oil leakage.

A sealing member extension portion includes an assist portion that provides spring-up assistance during sliding motion between members.

Inclined peripheral walls enable cam piercing for door weatherstrip mounting holes, eliminating laser equipment costs and man-hours.

A self-locking gasket fits within ceramic core channels to prevent foreign material lodging during processing operations.

Overmolded flexible seal prevents foam intrusion, ensuring dimensional stability and eliminating adhesive requirements.

Inward pockets nest biasing members, preventing dislodgment during radial displacement while maintaining seal spacing.

A flexible boot seals electrical plugs within vehicle lock housings to protect internal components from moisture ingress.

A sliding sealed connection assembly uses a flat seal and O-ring to achieve gas tightness.

A vehicle sun roof movable panel utilizes a sliding member and check mechanism to transition between tilt-up and integral slide positions.

Molded restructured filled PTFE gasket seals at low bolt loads using raised concentric rings, protecting fragile PVC and FRP flanges from damage.

Dual electrospinning devices apply opposite electric polarities to attract and coalesce polymer fibers into a unified mat.

A seal device prevents static leakage by using a thread groove with varying cross-sectional area, reducing fluid loss when the shaft stops.

A combined sealing system uses an active mechanism to lock a passive seal against door surfaces.

A magnetic fluid seal uses a heat barrier on the outer cylinder to maintain consistent sealing film temperatures.

Gas-lubricated face seal prevents fluid exchange between working and storage spaces, maintaining vacuum quality without mechanical wear.

Segmented auxiliary beads concentrate contact pressure on combustion chamber holes, preventing gas leakage in lightweight engines.

A leaf seal with actively controlled axial distance between sealing leaves and end plates.

Segmenting the converter into dual paths with a lockup clutch eliminates hydraulic losses that degrade fuel economy in large vehicle transmissions.

A labyrinth seal upstream of a shaft seal reduces wear and downtime in ground boring equipment.

Segmented inner lips shift resonance frequencies and prevent vibration noise while maintaining smooth sliding contact with the door glass.

A forced oscillation radial seal uses a pivot system and counterweights to maintain continuous contact with rotating plates.

Laser welding the overlapping section prevents rust from water stagnation in gaps between plate materials.

Aeration grooves on the rotary member create air lubrication to lower friction while preventing leakage when the shaft is stationary.

A spring energized plastic seal assembly uses a backup ring to maintain radial load and prevent extrusion between components.

Segmented contact areas balance rotational torque reduction with sealing stability by varying effective pressure-receiving zones across the sliding interface.

Aircraft transparency pressure seal uses integrated compression stops to maintain constant compressive force on the ply extended portion.

Angled seal end face reduces heat generation by minimizing force distribution, extending seal life in high-pressure water jet systems.

A cast sealing lip spans the entire arcuate extension of a vehicle window corner to maintain consistent positioning.

A vehicle roof control mechanism uses a drive carriage and coupling lever to actuate release levers.

Segmented sealing lips clean threaded sections while enabling direct force transmission, reducing crusher height and weight.

A sealing device with a flexible tip applies sealant to form a protective cap over mechanical fasteners.

A rotating locking collar forces pawls inward onto a knurled shoulder to secure firearm suppressors.

Trapezium cross-section annular seal adapts to varied threaded fitting geometries without precise housing seats, reducing assembly costs.

A gasket assembly uses bulb portions and a web to form redundant seals within tile gaps.

A shaft seal uses an elastomer-coated annular spring to press the sealing lip against a rotating shaft.

Elastic seal case deformation engages rotation-side members, eliminating cumbersome intermediate component installation.

A simplified vapor barrier with a single groove and segmented seal resolves manufacturing complexity while maintaining sealing performance.

Selective actuation of discrete support groups replaces multiple dedicated devices, reducing workshop space while maintaining positional accuracy.

A floating seal carrier compensates for radial and axial misalignment in submarine steering gear linkages.

Grooved piston surfaces extract particulates to prevent third body abrasion and jamming in contaminated fluids.

Modular press fitting with elastic bellows decouples vibrations and noise while maintaining fluid-tight seals without specialized tools.

End cap uses increased internal reflectivity to resolve irregular lighting at the light guide kink while maintaining aesthetic continuity.

An inverted radial groove design discharges foreign substances and bubbles from sealing faces, preventing wear and friction heat generation.

Color-changing indicators on a press fitting verify compression, preventing leaks from improper sealing.

Opposing bend portions in the seal lip counterbalance positional displacement, ensuring uniform surface pressure and reliable sealing.