Engine Seals TRIZ Cases

A snap-in annular spring seal uses a slotted first end and conical second end to cut turbine leakage, simplify assembly, and reduce seal damage.

Variable electromagnets adjust carbon seal loading to balance leakage, wear, and frictional heat across changing operating conditions.

Metallic spars and a bridging seal help ceramic airfoil pieces limit bleed air leakage while accommodating thermal expansion differences.

A sealed rotating annular air duct supplies fresh air near the revolving trestle to disperse wet toxic gases and reduce corrosion and suffocation risk.

Crown-shaped edge depressions create centrifugal contaminant repulsion in a rolling bearing seal, cutting friction torque without losing sealing capacity.

A press-fitted shaft seal uses elastic friction and a stepped housing structure to eliminate the retainer, cutting parts, assembly steps, and tolerance issues.

A spring-loaded sealing element keeps a handheld tightening tool sealed under vacuum while maintaining low friction, torque accuracy, and longer life.

An over-molded seal and cylindrical support stabilize the steering input shaft while cutting friction, noise, vibration, and debris entry.

Fluid passages cool the rubbing seal interface in rotational equipment, reducing thermal stress, fatigue, and seal degradation.

A springless cantilevered shoe bends under pressure differential to stop hydrostatic seal lock-up, reduce wear, and hold tight clearances.

A pressure-face groove and 0.5-0.64 balance ratio reduce axial closing force, heat, oil coking, and seal wear in turbine face seals.

Resilient toroidal gaskets seal the pivot joint bore to retain grease, block dirt ingress, and extend lubricant life.

Nested split-ring seal plies with integral clips accommodate thermal expansion, reducing assembly pinching, buckling, and heat transfer.

Fibrous carbon nanostructures in a cross-linked elastomer keep hydrogen diffusion controlled to limit swelling and blister damage in high-pressure seals.

Joined elastic body parts and closely spaced reinforcing rings let one gasket seal multiple narrow flow paths without leakage.

Aligned split stuffing box members and a threaded nut improve plunger sealing, reduce leaks, and secure the fluid end assembly.

Worn piston seal grooves are rebuilt with guards or inserts to stop gas bypass, restore sealing, and extend gas turbine service life.

A movable backing plate keeps brush seal bristles supported in hot, high-pressure cavities, limiting deformation, clashing, and sealing loss.

A one-piece carrier, cover, and detachable housing cut large-shaft seal teardown time while elastic biasing protects sliding surfaces.

Conical crystal seating and a metal-alloy gasket distribute deep-water pressure to keep a diving watch case sealed and intact.

An elastomer cover seated in holder grooves seals the fastener aperture, preventing crevices and leakage without field modification.

A rib-free metal gasket and latch assembly preserves tubular contact area, improving sealing plus bending and compression capacity under HPHT loads.

An elastomer filled with fibrous carbon nanostructures limits swelling and blister damage in gas seals for high-pressure hydrogen devices.

Dual ridge portions in a vertical pressure filter seal spread pressing forces more evenly, reducing shear stress and extending seal life.

Magnetic puller loading replaces spring-loaded seal faces to keep contact force stable under vibration, shock, and temperature extremes.

Embedded pressure sensing in a hydraulic pump stuffing box enables real-time pressure tracking, alerts, and earlier maintenance before seal or part failure.

Graphite and wollastonite in HNBR enable self-lubricating drivetrain oil seals that prevent squeal and maintain sealing under dry conditions.

An overlapping contact and triangular section lets both ring parts seal the support surface, cutting leakage at the rotor split.

A low-viscosity two-part silicone sealant cures without external moisture, bonding metal surfaces while resisting engine oil and high heat.

Pressurized air routed through feed slots and annular grooves lowers face seal contact pressure, cutting friction, heat, and wear.

A layered metal gasket uses curved edge geometry and springback to improve sealing, cut bolt loads, and reduce production complexity.

Detergent ducts and heated dosing clean the spring element and sealing gap to prevent dirt-induced dry gas seal failures in turbomachines.

An elastomer-backed pump seal maintains tight contact under vibration, easing alignment, cleaning, and retrofit in food pumps.

A spiral decompression channel expands from inlet to outlet to ease pressure drop, enabling faster beverage discharge with less foam.

A support member inside a helical spring keeps the seal flexible and leak-tight under cryogenic temperatures and high back pressure.

Radial and axial springs let the brush seal float with shaft motion, reducing oil leakage and bristle wear in gas turbine bearing compartments.

Axially graded wear resistance in an abradable labyrinth seal lowers restart rotor lock risk while preserving turbine leakage control.

Spaced seals and a pressure relief opening lower interseal pressure, reducing exhaust leakage while accommodating thermal expansion.

Grooved non-contact labyrinth sealing uses air pressure differences to block dust and water while preventing bearing lubricant leakage.

A self-adjusting rib-stringer seal absorbs mousehole tolerances, enabling pre-assembly machining and reliable aircraft fuel tank sealing.

A threaded sacrificial sleeve lets pump seals and packing be replaced quickly in erosive, corrosive fracturing service, cutting downtime.

Inner-surface runner mounting reduces edge loading and preserves sealing area while accommodating thermal expansion in turbine seal assemblies.

Strategically placed relief openings balance pressure and adapt to wear, helping piston compressor packing rings seal longer under high pressure.

A deflector ramp and tortuous pathways redirect leaking airflow and particles away from the bearing support housing to reduce compressor erosion.

A tortuous seal path between the vessel wall and rotating shaft blocks oil, grease, and other contaminants from entering mixing vessel contents.

Hollow annular portions let a pipe clamp seal bulge and compress more easily, cutting tightening force while preserving sealing effectiveness.

A heated gasket vaporizes the sealed fluid to form a gas barrier, preventing magnetic fluid emulsification at high pressure and shaft speed.

A double shaft-seal and drain space return leaked fluid to the cooling tank, preventing floor pollution and motor damage in vertical pumps.

Combining silicone resin and fluororesin particles improves oil wettability and dispersibility while lowering friction without weakening oil seal films.

A scoop-fed seal seat routes oil through a cooling hole at low speed and a pool feed passage at higher speed to limit leakage and seal heat.