Engine Seals TRIZ Cases

A hinged skirt seal pivots on a torsion spring to adapt to sloped floors and eliminate dust accumulation in sealing pockets.

A rotating shaft labyrinth seal uses centrifugal fins to discharge fluid inward, preventing leaks without friction.

Segmented annular projections on an inclined seal surface distribute contact pressure to suppress stick slip vibration and maintain ultra-high vacuum stability.

A vertical pump structure uses a double shaft seal assembly and drain space to redirect leaked fluid back into the tank, preventing floor contamination.

An annular brush seal pivots to adjust fiber inclination, maintaining precise clearance between rotating and stationary engine components.

Randomly distributed dimples with varied diameters and depths stabilize sliding properties at low speeds while maintaining effective sealing integrity.

A liquid filtration apparatus uses a dedicated hatch arrangement to discharge filter cake from the chamber.

Integrating guide and wiper functions into a single PTFE-based component reduces axial length while maintaining sealing reliability against radial deflections.

An annular lip seal with a reversible sealing side prevents gas leakage between the spindle and hub during normal tire inflation.

A high pressure swivel system distributes fluid across multiple seals to enable safe rotational transfer.

Continuous precursor injection renews the seal against wear without shutdown, extending operational lifespan and reducing maintenance downtime.

An insert flange with segmented weather strips resolves monocoque manufacturing trade-offs by blocking rain, dust, noise, and vibration ingress.

Inward-pointing fibrillations on a single molded housing bridge shifting gaps, resisting permanent deformation under heat and deflection loads.

Composite elastomeric V-ring seals balance sealing effectiveness against high pressure differentials to resolve strength-reliability contradictions.

Radial seal assembly in turbomachines relocates sealing from the shaft to the impeller gap.

Ring-shaped flange seal merges flushing device into structure, eliminating separate cooling unit complexity.

A high-friction fluid seal uses a dust lip with thinner extension stroke film than the fluid seal lip to retain working fluid.

Conical non-contact lips and a labyrinth seal redirect muddy water, preventing abrasion of the oil resisting seal lip without increasing sliding torque.

Slotted lip segments deflect and rotate to adapt a hole plug to varying component sizes, eliminating the need for additional adhesive sealing steps.

A selectively disengagable seal assembly changes radial dimension through axial movement to release engagement with tubulars.

Acute-angle locking hooks engage side walls via spring force, eliminating displacement risks and component complexity on flat surfaces.

Inverting the feed port position lowers the center of gravity, preventing overturn accidents and concrete stratification.

A sealing material with a recessed groove manages airflow in an electromotive unit, reducing resonance noise during reciprocating movement.

Self-holding annular seal prevents micro-chip intrusion into the joint plane during tightening operations.

Inclined arcuate loops in knitted wire yarns prevent filler material slipping while maintaining low manufacturing costs through asymmetric stitch geometry.

A two-piece expandable sealing plug uses a cup-shaped member and head to seal marginal hole openings.

Flexible bristle brushes accommodate large vertical movements between a vehicle chassis and cab, preventing air leakage that reduces cooling efficiency.

A weather strip extrusion die uses a movable core to adjust the hollow sealing portion cross-section during molding.

A movable seal member creates an external annular reservoir that retains fluid via centrifugal force, eliminating delays in seal formation during startup.

A sealing bowl with a circumferential groove and flexible silicon ring secures the bellows cylinder in the pressure block.

Standoff prominences prevent over-compression of the sealing gasket, eliminating fluid leaks from over-tightened bolts.

A cylinder head gasket insert uses a molded rubber component enclosing a metallic carrier to provide structural support and reliable sealing.

An annular seal uses asymmetric contact heights and a sloped deformation portion to bow outward under compression.

A soft panel top assembly features a lightweight pivotal portion that folds back to provide an open air effect while remaining attached to the vehicle.

Radially protruding portions couple longitudinally floating members, eliminating torsional misalignment and sharp edge damage from pressed components.

A quick-connect coupling uses elastic return means to release a male element when fluid pressure drops below a safety threshold.

Stiffening dimples on a feather seal prevent gas leakage through vane platform connections.

Segmented sealing rings distribute stresses to reduce erosion and scratching while extending fatigue life in high-pressure vessels.

An anti-friction coating on the brush seal carrier rear face enables radial motion, reducing friction drag and leakage in steam turbines.

Discrete resilient members allow the gland to float, preventing metallic contact while maintaining flame path integrity.

Stationary dosing tips synchronize pouring with lid rotation to distribute sealant evenly, eliminating pipe deposits and reducing maintenance.

A sliding seal absorbs deformation loads from aerodynamic forces, maintaining airtightness while preventing structural damage to the airframe.

A fluid pressure cylinder head bolt arrangement equalizes tensile loads across fasteners.

Labyrinth seal confines lubricating grease within the tooth engagement area, preventing sagging and maintaining heat dissipation.

Composite rubber seal member resolves plasma resistance and low-temperature sealing trade-off using crosslinked ethylene-olefin-diene composition.

Stationary seal ring supports rotating shaft radially and axially, eliminating separate bearings that increase device complexity.

A shutter seals the ferrule opening left by a missing rectifier blade.

Projections on the sealing plate limit vibratory movement and wear, preventing gas leaks in high temperature turbines.

A brushless DC motor integrates a labyrinth seal between the hollow shaft and housing to mount cutting tools directly on the spindle.