Engine Seals TRIZ Cases

Using triiron tetraoxide in fluororubber enables 1 mm fragment detection and low compression set for food-facility seals.

A non-cylindrical wear area in a softer slide ring stabilizes wear progression, maintains the sealing gap, and helps time seal replacement.

A layered gasket with a resilient core, heat spreader, and conductive outer layer improves thermal transfer, grounding, and EMI shielding in one part.

Multiple protrusions extend the sealing contact region so a rotary seal maintains leakage and contamination protection despite thrust-direction deviation.

A fixing rod clamps a concave sealing element in the groove, improving low-pressure sealing while reducing abrasion and contamination.

Outer and inner rings enclose an elastomeric seal to absorb thermal expansion and prevent high-temperature seal failure.

A straight-bore rotary union uses a pressure sleeve, intermediate collar, and paired seals to cut leakage under internal or external pressure.

A twisted silicone tube forms a hyperboloid seal around multiple conduits, cutting heat loss and gas leakage through insulated incubator walls.

A polyamide back-up ring with compatible low-friction filler cuts shaft static friction, suppressing low-speed hydraulic cylinder noise.

Integrated lubricants and conductive fillers let rotational seals cut friction and heat while dissipating charge without external lubrication.

Specific carbon black and cross-linking control help fluororubber seals resist cracking and maintain sealability under high heat and compression.

Rolling elements between the seal carrier and guide rail replace sliding contact to cut wear and friction in rotational equipment seals.

An external spring energizer and protected seal cavity maintain dynamic sealing while reducing contaminant buildup and easing cleaning.

Low pressure molding forms an integrated housing seal that improves waterproofing, cuts O-ring assembly time, and boosts endurance.

Pressurized intermittent flushing creates a clean barrier at plunger packing seals, reducing abrasive frac fluid wear, leaks, and maintenance.

A pivoting sealing lip stays closed at low pressure, then opens a bypass path for controlled fluid leakage and air venting above pG.

A hydrophobic silica-modified silicone composition helps brake caliper piston boots resist brake fluid without losing strength or volume stability.

Temperature-based vent monitoring helps cryogenic shaft seals curb process gas leakage and block warm sealing gas contamination.

Low-pressure recesses create pressure-locking forces that keep seal elements in contact, reducing wear and leakage in piston-cylinder assemblies.

Tiered elastomer webbing and ribs help a high-pressure offset seal limit strain, prevent over-compression, and maintain sealing under axial movement.

Hooks and an outer seal let one coupling fitting mate with standard fittings while preventing air ingress under negative pressure.

A segmented seal and heater-holder layout isolates vapor from electronics while protecting seals from heat and keeping aerosol heating efficient.

A sleeve-and-ring seal with conical surfaces and grooves improves leak-free semiconductor fluid transfer while easing assembly and service.

Dual seals, barrier fluid, airflow, and heat fins keep hot pump seals below safe limits and contain hazardous fluid leaks.

A hollow rod and dual cotton pads vent trapped bubbles and absorb condensed e-liquid, improving atomization efficiency and vapor output.

Interlocked split seal rings bridge joint gaps in a gas turbine rotor shaft, reducing leakage, thermal asymmetry, friction, and wear.

A stiffer coating on both sides of a secondary seal limits gap extrusion while preserving sealing contact under high pressure.

Brazing a carbon seal element to a metal carrier prevents shifting, adhesive failure, and handling damage in turbine engine seals.

Axially preloading a deformable seal runner preserves seal gap height under thermal growth and centrifugal force, reducing turbine leakage.

A pivoting axial protrusion breaks a pre-weakened separation layer in one connection step, simplifying sterile tubing fluid transfer.

Localized rubber and lubricating layers let a gasket seal around target holes while avoiding fastening-hole slip and fastener loosening.

A pressure-shifting seal and separate fluid conduits help rotating shafts deliver clutch hydraulics plus lubrication and cooling with less leakage.

An axial sealing lip in a recessed joint seat improves cleanability and cuts particle emissions in cleanroom robots.

A reinforcing ring with inward-bending lip and dual annular protrusions keeps a gasket stable in narrow spaces while maintaining sealing.

A composite seal with thermoplastic rings and a rubber core maintains positive sealing across wide tubular OD tolerances while reducing seal inventory.

A tapered, non-circular seal profile clamps into the valve groove to resist vacuum pull-out and keep vacuum valves operating reliably.

Detachable segmented seal sections simplify wind turbine bearing installation and service while preserving uniform spring-loaded sealing.

A layered labyrinth, cassette, and internal face seal blocks mud ingress while supporting higher rotational speed and longer gear box life.

Additively manufactured linear seals conform to mismatched aircraft panel gaps, improving acoustic isolation where tapes and foams seal poorly.

Subsurface hollow portions renew worn recesses and keep sealed fluid flowing, sustaining lubricity and sealability over time.

A one-piece packing gland and bushing uses an internal seal to handle higher lubricant pressure, cut pump shaft leakage, and ease removal.

Matched gland materials keep a μm-scale piston rod sealing gap stable, cutting friction wear while maintaining controlled leakage flow.

Removable ring adaptors expose the sealing interface for in-line inspection and replacement while reducing leakage points and downtime.

An HVOF-sprayed high-entropy alloy coating helps piston seal rings resist hot corrosion, friction, and wear at high temperature.

A notched resin backup ring on the low-pressure side blocks seal protrusion and improves pressure resistance in annular groove seals.

A tapered shim around the combustion chamber hole evens gasket pressure to preserve sealability and prevent cylinder head indentation.

A MoO3 solid-lubricant seal coating cuts friction and wear at the shaft-hub interface, improving gas turbine seal life and maintenance.

A sliding band between the shaft and elastic ring cuts vibration wear while preserving axial ring movement and sealing tightness.

A grooved retention member supports radial seal movement on a replaceable sliding interface, reducing wear and keeping rotating machine seals stable.

A flared oil lip and rigid annular support cut radial load and keep friction and dust sealing stable under high shock-absorber pressure.