Engine Seals TRIZ Cases

A flexible sealing lip and shaped support part cut assembly force, avoid insertion bevels, and maintain sealing under larger eccentricities.

Protruding vanes on the low-pressure seal wall raise centrifugal fluid pressure, reducing gas leaks and sensitivity to process pressure swings.

Open-ended ID channels and segmented grooves shift pressure drops to limit oil leakage while reducing seal wear in bearing compartments.

An annular recess and resilient projecting members improve fluid sealing and mechanical retention under vibration, pressure, and shock.

Repulsive magnets keep a floating gas turbine seal aligned through transient clearance changes, cutting leakage, rub risk, and wear.

A torque-decoupled nut protects a resilient seat from shear during installation, enabling reusable pressure-tight sealing above 1000 psi.

Nitrogen-doped tungsten carbide coating cuts friction and wear above 200°C in lubricated parts while resisting oxidation better than DLC.

An integrated seal within the filter element adds redundant sealing, allows dirty fluid flow to the media, and blocks direct bypass leakage.

A longitudinal rib at gasket crossings improves groove retention, prevents fall-out during upside-down assembly, and reduces leakage risk.

Guiding members in a turbine swirl chamber cut leakage steam circumferential velocity, reducing vortex mixing loss and pressure loss.

Interconnected cap portions and a grooved base simplify sealant filling, reduce manual shaping, and improve fastener sealing consistency.

Asymmetrical multi-seal gland chambers add lubrication and barrier fluid control to cut pump shaft leakage, contamination, and seal wear.

Distance sensing in the seal and mating part tracks contact stress, aging, and wear more accurately than minimal capacitance-change monitoring.

A pressurized barrier-fluid loop with heat exchange keeps double mechanical seals leak-tight and cool during pump operation and power failure.

Flexible ligaments and damping let an axial non-contact seal track pressure and vibration changes while reducing leakage and friction wear.

Positive and negative pressure grooves linked by a deep groove discharge bubbles and debris, maintain a liquid film, and limit seal leakage and wear.

A retained rotatable tube and resilient seals enable secure fluid transfer without rotating connected devices, even with large or stiff conduits.

A DLC-coated seal seat creates a low-friction carbon-carbon interface that cuts wear, leakage risk, and sub-surface heating in turbine seals.

A barrier-medium circulation loop with heat exchange and pressurization keeps double mechanical seals cooled and leak-tight during power loss and reverse rotation.

Brazing a carbon seal element to a metal carrier prevents shifting and adhesive failure in high-temperature turbine engine sealing.

A speed-responsive elastic seal closes at low speed and opens a gap at high speed to cut friction heating while maintaining shaft sealing.

A labyrinth stage cushions pressure swings before double-end-face dynamic sealing stabilizes the fluid film and reduces leakage.

Matched thermal expansion at the seal runner interface keeps bearing compartment clearances tight, reducing rubbing, leakage, and wear.

Localized protrusions press sheet seals at key points, improving pressure flowmeter sealing without deforming the fluid resistance element.

Multi-axis stepped grooves redirect longitudinal flow into radial and lateral thin-film support, improving seal stiffness and limiting fluid mixing.

A buffer-cavity protrusion on the retention member blocks and guides air-oil flow, preventing recirculation while fitting tight seal assembly space.

Pressure-managed cavities balance seal seating forces to limit wear, heating, and fluid mixing in high-speed turbine engines.

Pressurized oil and a pivoting inner seal carrier maintain shaft sealing under misalignment while blocking dust, water, and abrasive contamination.

Force-generating end plates keep a split ring separated to reduce seal heat and wear while supporting higher shaft speeds and pressures.

A radially floating seal follows shaft motion to minimize clearance, cutting leakage and wear under vibration, deflection, and thermal growth.

A hybrid aerostatic-aerodynamic face seal uses feed ports, cross-over ports, and axial sliding to cut leakage while preserving film stiffness.

A bulged annular watch seal with end clearances absorbs compression, reduces pinching, and maintains watertight closure despite tolerances.

Flange overhangs and an externally extending spring energizer keep dynamic seals cleanable while shielding the seal cavity from dust and debris.

Angled inner and outer beams reduce hydrostatic seal shoe tipping under radial deflection, helping maintain clearance and limit wear.

A staged shaft seal combines a ferrofluid seal, an added seal, and a pressure sink to cut leakage and handle high pressure differences.

Circumferential runner grooves generate hydrodynamic lift to keep gas turbine bearing seals stable despite axial translation, reducing wear and heat.

Powdered phenol resin and silica reinforce an elastomer seal to resist compression fracture while maintaining compression set at high temperature.

Controlled PTFE particle dispersion in a thermoplastic seal improves elongation-at-break and low friction, enabling heat-welded large-diameter rings.

A pivoting axial protrusion breaks an integral separation layer in one step, reducing parts, handling steps, and contamination risk in sterile tubing connection.

Positive-pressure and discharge grooves keep a fluid film on seal faces while flushing abrasion powder and contaminants to reduce wear and leakage.

An electromagnet adjusts seal load from pump mode signals, limiting dry-run wear while maintaining sealing contact and longer service life.

A rescue seal mounts above a failed pump seal to restore service while containing hazardous vapor release during replacement.

A case-mounted heating unit keeps reducer lubricant fluid in cold conditions while a protective sleeve supports reliable outdoor operation.

Electronic data memory embedded in a pipeline seal preserves seal-specific information for reliable tracing, management, and corrosion-safe use.

A shaped seat section and bellows spring constrain radial excursions in a dry carbon face seal to prevent opening gaps, leaks, and wear.

Release grooves and dynamic pressure grooves seal oil and oil mist while cutting friction and suppressing mist generation in high-speed sliding parts.

A dual-bearing seal section stabilizes the ESP shaft and isolates motor lubricant from well fluid to reduce leakage, contamination, and seal wear.

Cotton, seal rings, and a support groove capture condensed e-liquid before it reaches the battery assembly and causes short circuits.

A convex flame deflector over pressure boundary seals prevents fluid pooling and helps gas turbine joints stay airtight under heat and movement.

A two-part self-adjusting seal absorbs stringer position tolerances, enabling pre-assembly wing rib sealing without post-assembly drilling.