Engine Seals TRIZ Cases

A hydrodynamic seal assembly uses a pilot surface and parallel clamping interface to distribute uniform load across the mating ring.

Labyrinth seals on the generator fan body separate hot and cold cooling gases to maintain efficient heat dissipation.

Elastomeric seal extensions prevent bearing rotation and leakage in power tools by merging sealing and anti-rotation functions.

Segmented sealing assembly prevents muddy water entry while guiding lubricant replenishment to minimize wear.

Dual connecting sections bond the extruded seal to the outer wall and retaining web, preventing material accumulation during high-speed extrusion.

Structured lacquer coating mimics textile appearance, reducing production complexity compared to manual application.

One-piece annular seal member with integrated anti-rotation features locks the stack nut against adjacent components.

Segmented sealing lips resolve friction-reliability trade-offs by engaging auxiliary seals only after primary wear occurs.

An elastic sealing element between the stator housing and cover applies axial force to eliminate radial play in electronically commutated motors.

Injection molding encapsulates wire connections in an automotive door protector, eliminating adhesive curing time and preventing water leaks.

Blending polysulfonamide fibers with high modulus staples resolves the trade-off between thermal resistance and tensile strength in firefighter turnout coats.

Non-uniform thickness distribution lowers sliding load while maintaining pressure activation sensitivity.

A turbine seal device applies a swirling component to fluid flow using a shroud-mounted portion.

A piston seal uses a separate silicone pressure insert to transmit radial force while keeping the sealing element free from direct fluid contact.

Cylindrical seal lip geometry resists negative pressure and prevents tilting to stop grease leakage.

A sealing assembly features a PTFE seal element bonded to a support ring while remaining free at its inner portion for flexible bending.

A vehicle exterior belt mounting structure uses elastic clips to fasten the frame without screws.

Elastomer inserts prevent shaft scratches during assembly.

Segmented rigid and flexible zones with interlocking projections prevent film contact and vibration deviation in stacked ball joint dust covers.

A brush seal housing separates the support element from the main body to allow independent replacement of worn components.

Merging separate atmospheric vents into one port reduces the distance between the screw rotor and bearing, preventing shaft bending.

Integrating a sealing lip into the bearing housing eliminates separate oil seals, reducing assembly complexity while ensuring reproducible leak test accuracy.

A cam-lock actuating device with an elastomeric gasket gradually relieves internal pressure during tubular member disconnection.

An embossed gasket lip and flattened portion absorb impact noise and prevent wind ingress at the automotive door handle interface.

An extrusion recess in a harder back-up seal absorbs the pliable main seal, preventing fatigue failure during pump operation.

Plasma polymerization creates a low-adhesion surface on the seal core, preventing liner sticking and contamination during replacement.

Segmented thin-plate and abradable seals distribute pressure differential to inhibit flow rate changes under large pressure differences.

A plasticizer rich layer on the holding lip generates shrinkage and expansion forces to prevent position shifts caused by permanent deformation.

Direct induction heating cures adhesive between metal hardware and glass, reducing cycle time while maintaining bond strength.

A tail light assembly uses an opaque lens extension to conceal internal brackets and housing from rearward view.

Captive track motion system constrains convertible roof movement to prevent damage from excessive degrees of freedom.

Relocating the sealing boundary to the exterior sheath protects the seal from strand replacement damage while preserving internal dehumidification.

A weather strip with a first seal portion featuring non-uniform thickness to enable stable elastic deformation during link member movement.

The piston seal expands within a groove to contact the seal ring and heat shield, preventing undesirably large fluid flow while allowing cooling air to purge stray oil.

Detent ribs on rubber seals replace adhesives, ensuring stable mounting and reducing manufacturing time.

A stacked gasket design uses a doubling plate with circumferential beads to stabilize facial pressure across combustion chamber holes.

A dynamic sealing arrangement uses barrier fluid to isolate bearing lubricant from abrasive process fluids in rotating equipment.

Applying sealing elements over uncured fluid sealant adapts the material to uneven transitions, resolving mass-production surface preparation challenges.

A seal assembly design compensates for uneven wear rates between the sealing ring and cover ring.

Angled beams form a four-bar linkage to maintain seal clearance, preventing saw-toothing and leakage caused by parallel beam imbalance.

A sealing device incorporates a reinforcement element with coaxial strip-shaped sections and radially extending flanges connected to the sealing rim.

A sealing boot uses helical projections to compress cable jackets and block moisture ingress.

Undercut groove geometry mechanically interlocks elastomeric seal elements, eliminating metal and chemical bonds to enable rapid assembly and easy replacement.

A vehicle roof locking apparatus uses a spring-driven grip member to secure the retractable panel along a guide rail.

A divided seal ring with alternating recessed and raised sections reduces rotary torque while stabilizing sealing performance against shaft hole deformation.

A dual mechanical seal cartridge uses pressurized barrier fluid to bias rotating rings against rotor end faces, eliminating axial clearance gaps in sliding vane pumps.

A gearbox output seal uses a spring-biased floating ring to maintain contact pressure, preventing lubricant leakage and extending service life.

Passages extend fluid pressure across the tangentially-cut ring assembly, converting harmful high forces into counterbalancing effects.

A cabin door auxiliary striker pivots about a fore-and-aft axis to hold the door at an intermediate position.

Segmented door lower space geometry reflects noise via expansion silencer principles while maintaining easy door closure.