Engine Seals TRIZ Cases

A circumferential seal on a pump plunger uses injection molded thermoplastics to replace precision piston bushings.

A soft foam sealing tape uses a bonded film strip to cover lateral surfaces and provide structural adhesion.

A single elastic seal member merges separate sealing functions to reduce part count and assembly complexity while maintaining airtightness.

A folding top frame uses a slot-shaped guide track to move the corner bow between open and closed positions.

An internal sleeve oil seal with a labyrinth zone blocks foreign matter while the anti-friction ring transfers installation force.

Segmented annular rings move within a housing slot to seal pipes while accommodating orthogonal translation and rotation, resolving leakage under high pressure.

A rotatable cylindrical member enables quick axial access to pump valves without heavy tools.

An outward labyrinth lip and inclined seal flange form a segmented gap structure that suppresses muddy water infiltration while maintaining low friction torque.

A pivot seal assembly uses knife edges to enable frictionless pivoting within a displacement sensor.

Curvilinear support increases the spring constant of the flexible contact portion to limit flexure and reduce leakage between hot and cold conduits.

Dynamic seal clearance adapts to thermal expansion via biasing members, reducing fluid leakage across the seal.

A high-pressure sealing ring with a convex external heel forms rolling contact to simplify installation.

A ceramic tadpole gasket seals gas turbine gaps using a resilient mount ring and retainer structure.

Indentations and protrusions on adjacent plates provide mechanical rigidity to the diagonal gasket, reducing material accumulation in viscous fluid channels.

A socket uses a guide portion to align an inserted plug and a spring-loaded collar to lock the connection, preventing fluid leakage during oblique insertion.

A mechanical seal apparatus uses a flange and case design to hold sealing faces in contact via a resilient member.

Periodic linear indentations in pumping areas create localized fluid flow to balance seal integrity and lubrication during rotation.

Aluminum-coated metal seal prevents galvanic corrosion between dissimilar metals while maintaining sealed integrity under extreme temperature fluctuations.

Olefin block copolymer in the resin molded seal ensures reliable liquid tightness and airtightness despite complex product shapes.

Elastic seals center the support casing within a turbomachine bearing gasket assembly.

Segmented sealing elements and composite insulation prevent thermal stress cracking and electrical flashovers between the electrode holder and base plate.

Tapered rims deflect asymmetrically under thermal expansion loads, resolving the contradiction between compliance and consistent sealing performance.

A welded ferrous rivet connects lightweight metal to a second member while a waterproof section prevents electrolytic corrosion.

Curved interior lip supported by a wall protuberance reduces rattling noise during rapid door closure by minimizing collision deformation.

Temperature-sensitive stop material softens to allow t-shaped ring advancement, resolving assembly distortion risks from premature seal activation.

Annealing blanked gaskets relieves internal stresses to prevent warpage, ensuring accurate electrode positioning and reliable airtightness.

Axially displaced sealing lip pairs prevent contamination ingress through pedestal movement discontinuities.

Glass run uses soft portion to absorb vibrations, reducing rattling without increasing sliding resistance.

Integrating a door sensor within belt molding eliminates disjointed interfaces while enabling convenient powered door operation.

Annular key seal with rounded shoulders creates inner and outer shoulders to enhance axial compression.

Integrally formed tab enlarges the plane area of a rubber gasket body to facilitate carrier film detachment.

A shape memory element transitions to seal an electronics frame chamber, isolating components from fluid pressure.

A resilient sealing member integrates a strengthening member via an integrally formed retaining portion to secure structural support without adhesives.

Alternating V-shaped UHMWPE packing rings eliminate natural leather variability and prevent pressure-induced expansion in piston pumps.

Discontinuous pumping areas on a rotating member draw fluid to form a lubricant film, preventing leakage at rest while reducing sliding torque and wear.

A split seal ring uses a radial tab to restrict axial movement within gas turbine engine flow channels.

Blown castor oil and zeolite fillers replace fish oil to prevent permanent staining on porous stone surfaces while preserving adhesion.

Fluid bypass circuit reduces pressure drop across seal segments, allowing springs to open them during transients and prevent rotor rubbing.

Resilient arms in a flexible turbine seal accommodate thermal expansion while preventing compressor air leaks into the hot gas path.

Segmented pressure elements combine metal and ceramic sections to accommodate axial vibrations, resolving secondary seal defects caused by dynamic stress.

Radial expansion of a weld collet joins flimsy brew cup filters to rims, resolving placement precision issues without complex locating devices.

Amorphous alloy seals form hermetic bonds in the supercooled liquid region, resolving thickness and stability trade-offs.

Automated drum winding replaces manual techniques to resolve the contradiction between ease of manufacture and manufacturing precision in brush seals.

A segmented lubricant conducting element with mirror-symmetrical U-shaped areas creates enhanced sealing lips to withstand operational forces.

Magnetic bearings eliminate lubricant contamination in supercritical fluid turbocompressors, boosting thermal efficiency.

A battery terminal with a thin rising part compresses a gasket via diameter reduction to prevent leakage.

Asymmetric recesses in the seal segment create opposing hydrodynamic lift forces, maintaining a gas film during reverse rotation to reduce friction and wear.