Engine Seals TRIZ Cases

An inflatable toric holding enclosure seals rigid annular collars, replacing expensive tri-clamps with a disposable single-use mounting system.

Tapered edges and asymmetric regions in sliding component dimples reduce leakage by smoothing fluid movement across varying pressure gradients.

Variable thickness in the seal member reduces reaction force near fastening regions, preventing casing damage while maintaining seal integrity.

An integrated resilient seal accommodates varying wall thicknesses through an accordion pleat, simplifying installation while ensuring effective sealing.

Open-cell foam with wave-like intumescent members resists water and fire while maintaining compressibility without high-density impregnation.

Tilting the partition wall in width and longitudinal directions reduces noise intrusion while allowing seal lip bending.

Hot melt butyl rubber seals the lens to the base, reducing manufacturing costs while maintaining vapor tightness.

Composite PVF and PVDF materials resist fire while preventing debris accumulation between seats.

A metal face seal assembly uses metallic biasers to generate axial load while compressible seals provide non-axial sealing.

Inward flange contacts retainer to prevent opening phenomenon at low temperatures.

Potting portions constrain thin plate edges during liquid rubber molding, preventing overflow and ensuring reliable sealing performance.

Adjusting SiO2, Al2O3, and MgO ratios raises specific Young's modulus above 36.5 MPa/kg/m3 while lowering fiberizing temperatures to reduce production costs.

Tapered spacer surfaces bias a ring seal against a rotor disk, reducing contact stress damage while maintaining sealing integrity under thermal gradients.

Segmented metallic ring expands radially under axial compression to resist high pressure while preventing plastic deformation and clogging.

Composite seal minimizes outgassing to achieve 10^-11 mbar vacuum tightness

Varying backlash widths at rail fixation points accommodate thermal expansion between dissimilar frame and rail materials, maintaining weather strip contact.

Periodic asperities on a rotary member create pumping action to draw and return sealed fluid.

A stationary seal structure uses recesses with varying depths to manage static pressure distribution within the fluid gap.

Frustoconical stoppers increase functional layer thickness to protect compression beads from full flattening.

Chemical bond joints on a monolithic ceramic separator isolate the rotor and stator, limiting helium gas leaks below 1×10−8 std cm3/sec.

Integrates elastic seal members across laminated plates to reduce installation width and improve manufacturing productivity.

Vacuum-sucked elastic tube seals prismatic bodies despite dimensional variations, enabling quick inspection.

A drive ring delivers pressurized lubricant to maintain positive pressure, preventing starvation and leakage under suction vacuum conditions.

A gasket body features interconnected longitudinal and transverse ribs that provide stable contact against mounting groove side walls.

Partially filled root gaps create contact faces that dampen rotor vibrations while allowing compliant leaf motion to reduce leakage.

Plastic inner cups with diagonal braces resolve stiffness and weight contradictions in heavy duty oil seals while reducing noise.

Hard resin body and tapered soft resin end conceal lapped plate joints to restore continuous door seal contact.

Positioning the thread groove outside the seal lip contact area eliminates leakage flow paths when rotation stops, preventing static fluid loss on inclines.

A variable transmission moon roof module uses a displaceable transparent panel in an environmentally sealed compartment to switch between states.

Replacing wax with a fluorine-containing surfactant prevents gelation in isocyanate-based solvents while maintaining coating hardness and abrasion resistance.

A tin piece deflects lubricating oil waves and foam before they reach the contactless labyrinth seal, preventing seal failure when the shaft projects downward.

Extraction of an LED module behind a non-transparent trim strip uses an optical waveguide to deliver uniform illumination without increasing design complexity.

A retaining device limits tension spring diameter widening caused by centrifugal force, preventing detachment at high rotational speeds.

Active retractable seals and dynamic leak-off lines manage net thrust to protect bearings during extreme operating conditions.

Non-circular complementary surface deformations create a labyrinthine pathway that prevents lubricant escape and debris ingress in earth moving equipment.

Ceramic fabric seals with compliant free tows prevent combustion product leakage in high temperature gas turbine engines.

A seal unit uses a holding device to adopt states that alter its width along the axis.

A compressible sealing member with dispersible sealant prevents fluid migration through sheet piling interlock joints while maintaining structural integrity.

Resin lip member and metal spring member with segmented pressing portions reduce friction resistance in sealing apparatuses.

A non-contact shaft seal uses centrifugal force to prevent liquid leakage without sliding contact.

A hollow profile sealing element with spaced openings creates an internal cooling fluid flow through convection.

An elastic pre-loading element in the axially split pump connection region maintains seal contact and prevents leakage during settlement.

Solvent extraction removes uncrosslinked polymer from perfluoroelastomer seal material, eliminating firm adhesion and surface contamination.

Inclined channels route molten metal under a copper alloy sealing ring, forming solidified layers that compensate for wear and extend piston lifespan.

An integral PTFE guide bushing combines guiding surfaces with sealing lips to reduce assembly complexity.

An open roof panel transmits drive force across a seal boundary using intermediary tabs, protecting the drive source from environmental damage.

Integrating the pumping ring with the rotary ring reduces axial thickness and wear from solid content exposure.

Barrel-shaped tongue sections on a piston ring suppress combustion gas blow-by in non-overlapping areas while reducing uneven wear.