Engine Seals TRIZ Cases

Thermally activated seals expand at elevated temperatures to keep fluid couplings leak-tight without bulky insulation.

A porous heating film spreads heat across the atomizing body to avoid cold zones, improve particle uniformity, and deliver more consistent taste.

A curved, buried PTFE film edge in a syringe gasket blocks communicating holes from exposing leak paths to medical solutions.

A floating-ring telescopic gaiter lets an inner air spring gaiter nest within an outer one to cut compressed height in tight vehicle packaging.

A rotatable cover and silicone seal secure the e-liquid inlet, while an offset pneumatic switch avoids leakage-related failure.

A conductive element in the seal drains shaft charge to the housing, preventing bearing-damaging discharge in high-efficiency motors.

Isolated dynamic-pressure grooves and minute recesses improve seal lubrication while limiting fluid leakage and dust ingress at sliding faces.

A series check valve and backflow control valve limits reverse rotation after shutdown and helps detect check valve failure.

An inert gas flow reversed through tandem dry gas seals blocks methane escape from centrifugal compressors without gas conditioning units.

An overflow device guides hard-core and soft-skin flow in sandwich molding, improving seal geometry control without complex mold structures.

A soft sealing member and gap regulator eliminate passage gaps, cutting residual liquid while preserving electrolyte measurement accuracy.

Inclined relief openings in segmented packing rings equalize pressure, limit extrusion, and extend sealing life in high-pressure piston compressors.

An axial-step retaining plate centers the face seal with less overlap, preserving 360-degree coverage in tightly gapped gas turbine engines.

An angled sealing surface creates elliptical shaft contact to spread heat and pressure, improve sealing, and extend radial lip seal life.

A flexurally deformable sealing lip maintains contact with an inclined insertion member to keep annular gap sealing stable under tolerance or vibration.

Crossing bristles with offset lay angles reinforce a brush seal against bending, reducing leakage under higher pressure differentials.

An end-mounted air duct seals riffle seal slots, cutting cooling air leakage while accommodating misalignment and thermal expansion.

A recessed outer wall and widened side walls cut fitting force while preserving groove contact area for longer-lasting sealing.

Selective fiber coverage on the inserted tube guides cell growth while a bare region near the inner opening prevents peeling and inflammation.

An S-shaped annular gas passage with interlocked U-shaped ring walls improves sealing under radial and axial displacement in aircraft engines.

An overlapping abutting portion stops a hole plug from deforming or passing through a burring hole during forceful attachment.

Segmented seal shoes and resilient biasing elements maintain annular gap sealing while lowering internal stress and manufacturing cost.

Metallic bellows and welded annular joints replace rubber gaskets to keep shaft-to-housing seals stable under temperature swings and fluid exposure.

A tensioned external elastomeric lip cuts shaft installation force while resisting compression set and thermal expansion in seal assemblies.

A wave spring with shape couplings absorbs axial movement to keep seal-face pressure uniform, reducing wear, overheating, and seepage.

Multilayer cotton, a heating wire, and airflow control improve e-liquid atomization while limiting leakage in an electronic cigarette.

Acrylic rubber with carbon nanotubes and carbon black keeps bearing seals conductive for electromagnetic noise suppression without sacrificing mold release.

Graded seal radii and an intermediate chamber balance turbomachine axial thrust, cutting bearing load, leakage, and installation space.

Larger-radius gland contours and a matching backup ring spread seal stress, removing relief grooves and shortening downhole tools.

A radial anti-rotation lock stops seal element spin while allowing axial movement, reducing stationary wear and preserving sealing effectiveness.

Two uncoupled seal sections with a wave spring maintain turbine sealing under deflection and high heat, reducing wear and leakage.

Undercut leading-edge cooling passages balance heat removal and wall thickness in turbine blade outer air seals to avoid casting defects.

A nested seal between vane arc segments limits cooling air leakage while accommodating CMC thermal expansion to protect structural integrity.

A folded multi-layer beaded gasket uses interlocking sealing layers to handle gap width variation, cut assembly effort, and keep fluid seals reliable.

A conductive nonwoven buffer seal equalizes shaft and housing potential to prevent electrostatic damage and EMI in radial sealing assemblies.

Unequal-height sealing beads in an air filter gasket compensate for voids and uneven compression to block unfiltered air and dust leakage.

Frustoconical spring tabs axially load a split-hoop sliding seal to maintain sealing under high deflection, heat, wear, and relative movement.

Throttle orifices and sealed interfaces speed e-liquid delivery to the heating unit while preventing leakage and sustaining vapor output.

Grooved cooling channels built into the sliding rings remove separate inserts, cut assembly complexity, and improve seal heat dissipation.

A nested helical ribbon and canted coil spring balances seal contact area and deflection to maintain constant force and prevent deformation.

A slow-rotating flexible auger keeps sludge moving in two-stroke engine drain pipes, preventing blockage and reducing manual cleaning.

Relative radial movement between a spring-energized seal and back-up ring reduces wear and particle creation in high-pressure sealing.

Radially sliding annular rings and an oil-drain cavity maintain rotor sealing under misalignment while improving oil flow control.

A thermal insulator and stand-off air gaps limit heat flow from the seal seat into the shaft, preserving shaft strength under high-temperature friction.

An escape space lets a steering column sealing member expand under heat, preserving compression, sealing performance, and assembly fit.

Helical threads on a rotating collar create axial pumping to expel contaminants from bearing housings without close-fit wear or constant fluid supply.

A heat-shrunk band around a carbon ring matches metal expansion to hold seal gaps steady and reduce heat in gas turbine seals.

A ceramic seal seat insert retained on the shaft works with a graphite seal body to maintain sealing pressure and extend wear life.

A segmented annular seal stack with spacer and energizing springs maintains pump sealing through cryogenic temperatures and pressure changes.

A sealing collar and adapter use radial seals plus a drain return path to contain additive leaks around pump shafts and reduce seal complexity.