Engine Seals TRIZ Cases

An embedded wire helps break and lift a stuck centrifugal separator sealing ring, speeding replacement and reducing injury risk.

Segmented membrane bellows and couplers absorb torque and angular misalignment, preventing damage and improving compensator stability.

Recessed grooves in the rotating seal ring use centrifugal force to feed oil to exposed sliding surfaces, even on inclined ground.

Pressure-driven circumferential and radial channels boost piston seal contact, cutting axial seating pressure and oil leakage.

A shaped seal lip balances flexibility and rigidity to improve contact pressure, restrict grease leakage, and keep drag torque low.

A porous heating film spreads heat across absorbed liquid to avoid uneven vaporization, improving particle consistency and taste.

A grooved end-cover mount, support ribs, and sealing ring stabilize a heavy evaporator, improve sealing, and add contact-switch safety.

Flexible brush elements use pressure-assisted contact to seal turbomachine rotor gaps with minimal wear under vibration and minor movement.

Intersecting pressure-generation grooves on both sliding faces create early separating force, reducing wear and seal fluid leakage at low speed.

A resin-inhibitor seal composition controls inhibitor affinity and domain size to prevent flower blooming and reduce desorption over time.

A two-part conical mounting tool expands the sealing lip to prevent eversion and damage during reverse installation of a shaft sealing ring.

A laminate seal with a conforming layer breaks down at turbine temperatures so segments move into corner gaps and cut leakage between arc segments.

Separate self-adjusting seals in a releasable liquid passage assembly simplify replacement while maintaining reliable sealing in a centrifugal separator.

Alternating metal and elastomer roll pairs seal vacuum strip coating lines while limiting pinching, friction variation, and elastomer heat damage.

A dielectric coating fully encapsulates the gasket core to deliver thin-profile electrical isolation with higher temperature and chemical resistance.

A single energized packing seal and wear ring reduce plunger leakage, housing wear, and maintenance in high-pressure fluid ends.

Upward oil outlets and an internal oil passage keep both floating oil seals lubricated, even when the supporting wheel runs tilted.

A conical sleeve and segmented split ring redirect axial loads to reduce slide surface waviness and maintain seal integrity at high pressure.

Reversed groove placement in a carbon seal balances buffer-air pressure, limits wear, and improves oil containment in bearing compartments.

An annular resin layer acts as a solid lubricant in cryogenic mechanical seals when liquid films evaporate, reducing sliding-surface wear.

Inner and outer seal protrusions maintain a fluid-tight downhole seal during axial movement while support protrusions scrape debris from dynamic surfaces.

Deformable annular protrusions and a central trough let one ring seal align and seal both C-type and W-type ports without orientation issues.

An integrated armature-elastomer seal uses dual lips and a contaminant collection zone to cut suspension friction while improving dirt exclusion.

Guided fluid flow at a mechanical seal groove opening keeps contamination out, reducing abrasive wear while maintaining lubricity.

Elastic-backed sealing rings compensate for wear in reciprocating pumps, maintaining sealing while reducing piston rod friction and maintenance.

Elastic locking arms apply continuous pre-tightening force to keep pipe fitting seals effective longer and reduce replacement frequency.

A stepped outer-ring groove spreads O-ring stress during housing attachment, preventing rupture while preserving sealing and vibration absorption.

A multi-lip bearing seal creates a tortuous path and force-activated contact to block detergents and contaminants without raising friction.

A liquid ejector and separator replace reciprocating compressors to supply pressurized seal gas with lower energy use and maintenance.

Seals around the latch pin and aperture block moisture and debris, keeping aircraft folding wing latches moving reliably with electric actuators.

An elastic secondary sealing lip relieves excess wheel hub pressure while the primary lip blocks dirt and moisture ingress.

A boron-oxide multilayer edge seal and laser sintering improve vacuum panel hermeticity while limiting glass de-tempering and thermal cracks.

Pressure-vented disposable cartridges add feedback for accurate insulin delivery while simplifying pump use and reducing infection risk.

Split receiving pins and an actuating pin deform flexible rings for precise inner-groove insertion with less point loading and damage.

An inclined cylindrical tip and low-friction coating help place flowable sealing material precisely in PT closures for PVC-free seal production.

Offset, overlapping bristle sets help a brush seal resist blow-through and maintain sealing under high pressure differentials.

A flexible brush seal uses pressure difference to isolate turbomachine rotor pressure zones while reducing wear from vibration and relative movement.

A containment ring retains and directs splash oil to rolling bearings and shaft seals, improving gearbox lubrication while reducing wear and leaks.

A conductive elastic seal and lubricant keep a motor shaft electrically grounded at high speed, reducing electromagnetic noise and electrolytic corrosion.

An uncut packing ring and vent passages stop standstill gas leakage in reciprocating compressors while limiting ring wear during operation.

Locking and detachment-prevention protrusions keep a gas turbine leaf spring engaged under compression, reducing gas leakage.

Quick-connect needle probes and a swivel cartridge door cut cryogen replacement time without removing needles, reducing delay and discomfort.

A separable coupling joins pressure seal ends so aircraft door seals can be replaced quickly without disconnecting hinge or actuator connections.

A carbon-carbon composite piston seal cuts rotor wear in gas turbines by forming a lubricious film while lowering seal weight.

A clamped deformable seal closes the wing box-fuselage joint from outside the aircraft, improving access and sealing reliability.

A bendable second seal cuts radial reaction force in a rotor-housing seal, improving slidability, assembly ease, and sealing.

A spring-biased annular seal keeps bearing compartments sealed in gas turbines while reducing lubricant leakage, heat generation, and axial space.

A chamfered back-up ring supports the hydraulic buffer seal, spreading contact forces to cut groove wear, leaks, and contaminant damage.

Dust covers and a recessed annular groove block muddy water and debris from reaching the bearing while preserving low rotational resistance.

A layered tellurium-oxide seal with graded thermal expansion uses laser firing to limit cracks, preserve glass temper, and retain vacuum.