Engine Seals TRIZ Cases

A polyimide sealing component deforms under compression to create a reusable face seal that avoids leaks, galling, residue, and high torque.

An S-shaped thermoplastic wiper seal resists zinc plating chemicals while sealing the piston rod and blocking debris in dampers.

A noncontact labyrinth seal interlocks the rotor and insert to limit axial motion, blocking contamination and lubricant loss with less wear.

Visual alignment rings and a moving wear indicator simplify rotary joint installation, show seal wear in service, and shield springs from corrosion.

Low-pressure inert gas is pumped upstream through tandem dry gas seals to block methane escape from compressor shafts without major hardware replacement.

A circular two-piece housing with abutment sealing improves actuator sealability, strength, and durability while reducing power loss.

Discrete tabs attach to preformed gasket connection areas, cutting plate heat exchanger gasket manufacturing and replacement time.

A spring-loaded seal isolates the vacuum chamber from tool bearings, maintaining low friction, torque accuracy, and longer service life.

Nested rigid and flexible seals block steam and metal scale while maintaining contact under shaft eccentricity and thermal expansion.

A tandem dry gas seal uses upstream inert barrier gas and spiral-groove pressurization to stop methane venting from compressor shafts.

Surface indents generate hydrodynamic lift to stabilize the seal gap, reducing leakage and wear between rotating and stationary faces.

Centered polygonal channels let the seal compress with moderate force, protecting the shell while maintaining alignment and sealing in powder slush molding.

Raised laser-fused plating thickens the gasket mid-span between cylinder openings to reduce leakage, warping, and durability loss in boosted engines.

A wall-covered bellows and guided axial fit prevent irreversible deformation under fluid pressure while keeping the stationary ring aligned.

A three-piece conduit connector uses self-latching slots and locking feedback to simplify assembly and prevent misconnections without tools.

A one-piece carrier, cover, and detachable housing let large-shaft slip ring seals be replaced faster with less downtime and surface damage.

An adjustable intermediate member aligns and fixes a seal plate from outside the rib, speeding fuel tank opening sealing and improving leak tightness.

A long, blunt sealing lip creates a durable interference fit in hydraulic expansion chucks, reducing leakage and wear during repeated clamping.

Reactive metal sealing replaces swellable elastomers to anchor liner hangers reliably in high-salinity and high-temperature wellbores.

An axially biased carrier and wave spring lower seal contact load, reducing wear and heat in compact seals for high rotor speeds.

A two-body radial seal compensates for component-half tolerances, cuts screw points, and supports clean, reusable assembly.

Radial and axial sealing forces improve gasket sealing while keeping fluid channels open for smoother fluid exchange.

A rounded-peak seal and retainer groove prevent fallout and over-compression, improving sealing durability without hazardous adhesives.

Sequentially compressing annular gasket platforms seal varying drain shoe diameters and depths with fewer parts and simpler installation.

Portionwise chloroprene addition improves nitrile copolymerization, delivering oil-resistant rubber with better strength and flex fatigue.

Variable land width across the sealing face preserves negative pressure generation, shrinks the positive pressure region, and reduces leakage.

An omega-shaped metal web helps gas turbine combustion seals absorb duct tolerances and vibration, reducing leakage, wear, and maintenance.

Additively formed pillar lantern rings create larger flush reservoirs and steadier seal fluid delivery while reducing contamination and shaft whip.

An L-shaped catcher redirects fluid through passageways to limit seal runner deflection, maintain oil pressure, and improve bearing compartment cooling.

A reticulated PTFE-class gasket and staged fitting method create an air-bubble-free slide-valve seal for high-pressure polymer mixing.

A clamped conductive foil and support ring create a reliable electrical seal while avoiding complex pre-treatment and bonded assembly steps.

Surface roughening and multi-tier fin locking raise drawing strength, keeping steam turbine rotor seals secure at high temperature.

A movable protective plate shields the valve seal from abrasive flow, then retracts to let the compressed seal close reliably under pressure.

A sunk, vertically stacked valve layout cuts concealed shower box depth and protrusion while keeping installation stable and flexible.

Flexible beaded cannula seals maintain a fluid-tight barrier during cannula movement while reducing drag and leakage in biopsy devices.

Varying tooth clearances along the seal offsets tight-fit and thermal distortion, preventing rubbing while keeping sealing performance consistent.

An overpressure fluid film between the chamber seal and roller cuts friction, wear, leakage, and ink drying in rotary printing presses.

By moving the biasing spring outside the stationary seal ring, this case cuts axial length while preserving sealing force and limiting deflection.

Nested chevron seal rings cut assembly friction in pipe ball joints while expanding under pressure to maintain sealing in misaligned connections.

A retractable deployment tool expands sealing elements inside a flowline to isolate a circumferential leak while keeping fluid transport running.

A two-stage static and dynamic sealing assembly blocks external contaminants, reducing shaft seal wear and simplifying maintenance.

A metallic C-shaped gasket deforms under pressure to seal high-temperature mechanical seals while allowing axial movement and easier disassembly.

A fluid-filled fiber gasket seals hypertube joints against thermal deformation, preserving vacuum integrity without extra inspection.

A mechanical seal with sliding and counter rings stops oil leakage while letting the gearbox-side drive bearing stay oil-lubricated.

A two-part plug and cover seal lets walls be painted without plug replacement, preventing oil leakage, paint flaking, and extra assembly time.

Thin dielectric coatings on a metal-core gasket replace GRE, improving electrical isolation, temperature tolerance, and chemical resistance.

A guided bellows and surrounding case wall prevent barrel-shaped deformation under pressure, preserving seal integrity during temperature-driven ring movement.

Venting and gear-driven rotation balance last-stage pressure drop in multistage brush seals, reducing leakage, wear, and downstream failure.

Acoustic and vibration signals from overlapping seal surface structures reveal wear early, enabling planned replacement and less downtime.

A movable blocking part forms a temporary shaft seal to limit vessel leakage and enable seal replacement without draining the tank.