Engine Seals TRIZ Cases

Segmented 3D swirl brake plates redirect helical seal-cavity flow in axial rotating machinery to curb self-excited rotor oscillations.

Stepped hydrodynamic grooves split gas flow to sustain thin-film sealing at low pressure and during runner translation, reducing wear and mixing.

A disk gasket and gripping retainer prevent pressure buildup behind a regulator sealing disk, reducing slippage, ejection, and leakage.

Smaller inner and outer seal taper angles redistribute contact pressure to prevent flow passage deformation and maintain sealing.

A shifting inner-outer tube seal maintains vacuum insulation at high temperature by absorbing thermal expansion without welded joint failure.

A fluorocarbon-polyolefin-urethane coating improves rubber surface wear resistance under high pressure and heat to help prevent oil and gas leakage.

Segmented, non-uniform seal wall geometry cuts seal carrier mass while preserving carbon seal retention, alignment, and wear control.

Increasing runner-stator clearance at the lower ring damps vane-less gap pressure pulsations while preserving turbine stability and efficiency.

Accessible fasteners and a sealed retainer body let this cylinder sensor mount securely while simplifying replacement and reducing downtime.

A three-leg axial ring seal uses creep-resistant geometry and nickel alloy to maintain contact and resist pressure loads at high temperature.

A segmented gasket face supports the annular protrusion to preserve sealing while preventing pressure loss and flow stagnation.

A heat-insulating spacer keeps the induction coil gap uniform, improving CV joint boot bonding strength, sealability, and coil life.

Acoustic or vibration sensing tracks slide ring surface wear through groove-related frequency changes, enabling earlier warning of mechanical seal failure.

Air curtain generators in a radial air dam create a high-energy air barrier that limits fluid ingress and leakage at low differential pressure.

A parallel cord-seal connector increases contact area at pump housing joints, preventing leaks under high operating pressure.

A pre-assembled dual-ring sealing array with spacer ring and pressurized-air seal simplifies transmission output shaft maintenance while reducing pressure exposure.

A retaining ring and bearing cover hold a turbomachine brush seal without compression, reducing run out, wear, and replacement frequency.

Adjustable radial sealing gaps and a gas cushion cut turbocharger gas and oil leakage while reducing friction and wear.

An inclined seal groove base and reset-side bevel help the brake piston retract properly, reducing residual braking torque, noise, and wear.

A ring-cap seal in wire or silicate knit keeps flow-noise damping chambers sealed despite heat-driven expansion and frequency drift.

A pull-off biased aspirating face seal uses tooth layout and vented airflow to cut leakage, limit tilt moments, and maintain ventilation.

Internal seal chambers and nut passages recirculate lubricant in screw assemblies, limiting migration loss and extending relubrication intervals.

A sliding two-piece valve plug compresses and releases a seal to maintain tight shut-off while reducing friction, wear, and seal degradation.

Offset segmented seal rings improve face seal rigidity and in-situ assembly on large turbomachines while reducing axial steps and wear.

Magnetic strips hold anchored waterproof sealing gaskets in steel mold grooves, preventing casting displacement and improving tunnel segment waterproofing.

Compressed gas actively presses the sealing element against the bearing ring to prevent lubricant loss under overload and aging.

Axial-radial channels route cooling air across the inner air seal to cut thermal loading while maintaining flow despite axial movement.

An asymmetric dual-protrusion gasket seal keeps couplings sealed with low-temperature fluids despite sealing loss during temperature cycling.

A replaceable elastomeric gasket uses inner and outer engagement features to restore timing chain tensioner sealing without full replacement.

A shaped EPDM seal creates airtight modular unit joints under compression, cutting installation time while blocking air leaks and moisture ingress.

A pressurized-gas drum seal uses interference-fit end seals to handle shaft runout, maintain continuous sealing, and prevent material loss.

A radial dimple layout boosts fluid suction at sliding faces to improve sealing, reduce leakage, and maintain low-friction lubrication.

Separated seal cavities use lubricant pressure to vary local pressing force, preventing leakage while reducing friction and wear.

Segmented carbon seal sections with a spring retainer maintain rotor contact under vibration, limiting hot airflow leakage and wear.

A diamond-coated sealing blade and pre-stressed slide rings create a near-contact mechanical seal that minimizes leakage, wear, and heat.

Leak steam routed through vane passages heats stationary vanes to limit condensation, erosion, and efficiency loss in wet-stage turbines.