Engine Seals TRIZ Cases

Offset intake and discharge passages in modular fluid end sections help limit cracking and leakage while simplifying section replacement.

Multiple band seals with an evacuated cavity cut fluid permeation and leak-by while improving chemical resistance in substrate processing.

An elastic Teflon-based seal is pressed radially outward and axially retained to limit leakage and wear despite thermal deformation.

A bayonet-locked piston and drive member remove axial play and tolerance-chain errors for more accurate clutch fluid displacement.

A lever-action dual-leg seal improves follower plate sealing for viscous materials while adapting to container diameter and tolerance variation.

Rotating backup rolls replace stationary seals to keep sheet paths airtight while cutting friction, wear, and dust in vacuum chambers.

Subsurface hollow portions renew recessed fluid pockets as wear progresses, helping sliding surfaces retain lubricity and sealing performance.

A driver element transmits torque through play-fit cutouts, avoiding seal ring stress, preserving sliding flatness, and extending seal life.

An elastic toe-support enhancer redistributes radial loads in a rotational seal to cut heel wear, prevent leakage, and extend seal life.

Relieving pressure behind the seal energiser reduces friction and residual error while preserving reliable sealing in hydraulic actuators.

Deep and shallow tapered grooves recover sealed fluid from the leakage side and return it to the sliding gap for stable lubricity with less leakage.

Lotus-effect microstructures on opposing optical parts raise water contact angle to block capillary intrusion without peel-prone coatings.

A retention member with buffer-cavity protrusions blocks circumferential windage and guides oil drainage in space-limited seal assemblies.

A bracketed dual-seal closure combines elastomer compression with weld sealing to resist corrosion and keep subsea enclosures reusable.

An engaged groove-and-wall ring structure resists external force and keeps a seal protective ring fixed in its intended position.

An inward gasket rib and tube channel seal the pump actuation area around a vertical IV tube despite door-casing tolerance gaps.

Radial cuts and a curved seal profile maintain hot-air sealing while reducing friction, hoop stress, and wear under thermal expansion.

Segmented concrete blocks with buoyancy chambers and watertight packing enable offshore wind structures to be assembled afloat without large barges.

Supplementary PTFE sealing rings create a pressure drop that unloads the main gasket, reducing leakage in high-pressure pump pistons.

Inflatable bladders adjust shaft sealing pressure externally, giving uniform radial loading without guard removal to reduce leaks and contamination.

Tailored seal ring profiles match the runner's predicted hot shape to lower contact pressure, reduce wear, and extend seal service life.

Capacitance between a conductive seal base and machine element tracks gradual wear, enabling early leak warning and predictive maintenance.

Precise PPVE content, melt flow, and low functional groups balance ozone resistance, sealability, mold corrosion, and fluorine ion dissolution.

A resilient one-piece wing aperture seal maintains contact with protruding actuation elements, reducing leakage, weight, and wing modification.

Adjustable force on the cabin seal removes air pockets and leaks in vacuum elevators, reducing jerks, whistling, and vibration.

Peroxide-cured HNBR with silica and silane balances LLC resistance, compression set, cold flexibility, hardness, and processability in mechanical seals.

Pre-installed dual gaskets seal wall panel abutment joints without exterior wet sealant, cutting cure time, lift work, and safety risk.

Interlocking coupler members let a split V-ring seal stay secure across diameter variation and thermal expansion while remaining easy to install.

Elastic retention and integral positioning keep bellows rims fitted during transport and installation, improving steering shaft waterproofing.

An elastic front lamella helps a cartridge piston self-center during insertion while maintaining sealing and blocking air penetration during dispensing.

Angled multi-plate swirl brakes in the seal cavity cut helical swirl flow and prevent pressure-driven rotor oscillations.

Measured radial seal ring adjustment avoids temporary casing assembly and cutting, enabling faster, more accurate steam turbine clearance repair.

Oil between a hollow-head valve shaft and guide boosts heat transfer, while a multi-lip seal and sodium cooling reduce wear and valve temperature.

Dual protrusions on the dust lip preserve negative pressure prevention as wear progresses, extending rotary shaft sealing life and leak resistance.

Adhesive bonding at the skein end replaces slow thermal bristle holding, enabling repeatable tuft cutting and faster brush seal production.

A radial spring and transmission element cut seal axial bulk while preserving dynamic sealing and easing tolerance demands.

A grooved U-shaped seal and inner-wall channel keep the container watertight under vibration while allowing non-destructive access for service.

Overlapping deep and shallow grooves sweep debris from dynamic-pressure grooves, preserving fluid film generation and uniform sliding contact.

A plastic ring and rubber-elastic cover create a continuous piston guide surface that cuts wear and avoids chemical bonding steps.

A 66-68% fluorine fluoroelastomer blend improves sheeting, mixing, tensile strength, and plasma resistance in sealing materials.

An axially movable support ring boosts spring force during pressure reversal, helping mechanical seals limit leakage at lower cost.

An annular jacket with asymmetric lips and an energizer maintains sealing under cyclic pressure and temperature changes while reducing wear and leakage.

Stacked sealing discs with axial play and gas passages seal dynamic pressure peaks while limiting wear-driven gap enlargement.

Silica and graphite in ultracold-resistant acrylic rubber help bonded piston seals keep roll processability, adhesion, and compression set from -30 to +150°C.

Strapped sealing ring and gasket improve banjo fitting installation accuracy to prevent leaks in high-pressure fluid connections.

A nested bulb-and-cup seal maintains tight thrust reverser sealing across structural displacement, reducing air leakage and premature failure.

A welded bracket plus elastomeric seal keeps subsea enclosures reopenable for maintenance while resisting seawater ingress and corrosion.

A lever-triggered sensor interlock lets surgeons manually control cutting accessory activation while preventing accidental tool movement.

A spring gasket around the pump outlet maintains sealing under tolerances, thermal change, and pressure pulses while reducing gap extrusion risk.

An axially deflecting sealing membrane helps rotary shaft seals withstand high pressure, wear, and shaft movement without leakage.