Engine Seals TRIZ Cases

A sloped sealing lip and segmented seal structure simplify brake piston assembly while improving positioning and blocking dirt and dust.

A polymer packing ring seals the piston rod at standstill, then expands at operating temperature to open clearance and reduce wear.

An oblique outer periphery and elastic covering cut gasket reaction force while limiting corrosive buildup that degrades sealing.

Purging channels drain water and contaminants from the seal chamber, improving bearing sealing and extending seal life in harsh environments.

An absorbent backup layer swells on contact with insulating fluid, clogging leak paths and improving electric device sealing reliability.

Discrete rotor markings let one sensor track sliding ring wear and rotational speed, cutting sensor space and seal monitoring complexity.

An axially repositionable seal lets reciprocating pump fluid-end seals shift to new sealing positions, reducing wear, leaks, and maintenance costs.

A passivating PVD coating on sealing ring radial and side surfaces blocks metal adhesion and surface degradation in turbomachinery grooves.

A tellurium- and vanadium-oxide seal improves vacuum panel hermiticity, heating efficiency, and durability under thermal stress.

Pre-assembled lip seals, washers, and bearings improve fluid management between dynamic and stationary surfaces while simplifying installation.

A dual-seal fluid cavity maintains intermediate pressure to cut flywheel windage losses while simplifying hermetic sealing.

A separate gasket and interlock closure seals the applicator container against external gas while keeping opening and closing simple.

A Lomakin-effect annular gap stabilizes the seal ring, prevents sliding contact, and maintains shaft sealing at high rotation speeds.

Asymmetric edge layout and convex radii cut piston ring seal wear under pressure, thermal expansion, and vibration in gas turbines.

A three-region form seal enables flush, cleanable gap sealing and front-side replacement without rear access or flow-disrupting protrusions.

A protruding vent component with a compressed sealing member keeps contact area stable under environmental changes and prevents housing detachment.

Asymmetric edge placement and convex radii cut wear at the gas turbine piston ring seal interface while preserving sealing effectiveness.

An asymmetric piston groove lets the seal ring deform toward a deep section, cutting return-direction friction while preserving sealing.

A textile seal encloses the oscillating sieve component to block crop ingress, cut seal wear, and simplify combine harvester maintenance.

A tellurium-oxide multi-layer edge seal uses localized laser sintering to preserve glass tempering while improving vacuum panel durability.

A shaft shoulder, major seal, and backup seal isolate a dry motor from hydraulic fluid, cutting actuator size, weight, and complexity.

A nested square-and-round garter spring layout protects seal corners from extrusion and fretting while maintaining sealing contact pressure.

A sintered wire metal matrix seal flexes between moving components to maintain sealing while reducing wear and extending service life.

Pressure cushions with friction seals stabilize pressure and heat zones in continuous panel pressing to reduce blisters and improve panel quality.

A pre-attached alignment ring and dust seal retainer guide the gyratory crusher main shaft into place without manual alignment beneath the load.

Spring expansion and recessed dimples hold an internal pipe repair seal in place, enabling watertight repair without shutdown or excavation.

Fluid pressure expands a metal hanger seal to seal the annular space, then can be released or punctured for removal without housing damage.

Localized laser heating changes seal oxide states to improve vacuum panel edge hermeticity while limiting glass de-tempering and thermal stress.

An acoustically transparent sleeve and compressive fasteners block wellbore fluid ingress while preserving downhole acoustic signal quality.

A segmented WRB sheet with a reopenable flap preserves mate line access while improving wall envelope sealing and WRB durability.

Branch grooves, tongue pieces, and a pressing member keep the O-ring aligned during screw fastening to maintain a stable waterproof seal.

Radial depressions and edge cutouts create discontinuous seal-lip pressure, improving lubrication and cooling while reducing wear and oil carbon.

A protective coating shields the bellows and retaining part from coolant vapor and air, preserving axial movement and seal life.

Bypass flow channels around a turbine piston seal ring create symmetric leakage to limit thermal hotspots and reduce seal manufacturing risk.

A double garter spring corner layout reduces seal material loss from extrusion and fretting while maintaining pressure bridging in annular seals.

A sealing case where an engagement wall on the protective ring bites into the reinforcement ring to prevent ring displacement under external force.

An inflatable seal in the robot joint gap enables fluid-tight washdown sealing while reducing wear and contamination risk in hygienic use.

Lateral wings, raised sealing portions, and reinforcement help one seal maintain fluid-tight contact across inner, outer, and face surfaces.

A floating labyrinth seal uses pressurized fluid, O-rings, and anti-rotation pins to handle shaft misalignment while limiting wear and leakage.

A compositional gradient between polymer regions helps rings and bearings balance wear resistance, heat flow, and mechanical strength.

A notched flexible seal helps load port doors install into grooves easily while achieving airtight sealing with less force and less contamination.

A controlled gap seal shields the grounding element from oil while feeding light lubrication, extending electrical contact life in rotating seals.

A chemically resistant outer elastomer protects the seal core, reducing gas permeation and extending downhole sealing life.

A laterally moveable seal carrier and spring-loaded lip seal maintain piston rod contact under lateral motion, reducing gas leakage and seal wear.

Groove layouts in sliding rings maintain liquid supply and block gas intrusion at low relative speed, preventing poor seal lubrication.

A fire-resistant bulk matrix with phase-changing particles absorbs and disperses heat to prevent burn-through in harsh high-temperature sealing.

A compliant matrix and energizer follow shaft runout and worn surfaces to maintain sealing and reduce wear in rotating equipment.

Angled oil return passageways in a rotating seal seat route weepage oil back to the bearing compartment and reduce gaspath leakage.

A thermally responsive polymer packing ring seals the piston rod at standstill, then opens a leakage path at operating temperature to limit wear.

By combining the seal, backup ring, and bearing into one structure, this case cuts parts count and improves sliding stability in hydraulic seals.