Engine Seals TRIZ Cases

A liquid reservoir seals movable mechanism gaps using hydraulic or machining fluid to block foreign matter entry.

Segmented body elements with interlocking tabs resolve manufacturing inefficiency while maintaining structural integrity.

A sliding backing plate supports bristle sets in a gas turbine brush seal, preventing deformation and clashing under high pressure.

Deformable latches on the leg portion reduce insertion force and energy consumption while maintaining secure retention.

A composite seal member uses a liquid-resistant main body to surround an elastic portion, maintaining precise alignment of communicating holes.

A tandem mechanical seal uses distinct first and second grooves to generate dynamic and static pressure on the sliding face.

An asymmetric sealing ring uses thermal contraction and fluid pressure to maintain tightness despite differing thermal coefficients.

Radial dams segment the seal face to boost film stiffness, preventing rotor contact at high speeds.

Spring-loaded runners urge a flexible sealing ring against rotating shafts to maintain axial contact.

A rotatable main sealing member bridges opposite swing doors, eliminating friction wear and ensuring reliable airtight seals regardless of opening order.

Heat shield tube surrounds oil transfer tube to create annular cavity for purging leaked oil.

An abradable covering yields airflow that pressurizes a trench cavity to reopen the seal and prevent metal-to-metal damage.

An aircraft seal insert connects inner and outer covers to simplify manufacturing.

Glycerin-water slurry and bentonite gel prevent geomembrane degradation at high temperatures, maintaining seal integrity.

A seal assembly uses a rigid carrier with an orifice to control fluid flow past a torque converter hub bushing.

Jet holes channel pressurized air against a wire in intersegment seal segments, generating thrust to seal end gaps despite thermal expansion.

Layered fabric and rigid shims in a turbine cloth seal block leakage flow paths, reducing pressure drops across the seal structure.

A dual-lip oil seal uses a partitioning lip to divide the internal space between sealing members.

A hydrodynamic carbon seal draws air to maintain a non-contact gap between the rotor shaft and stationary housing.

Recessed cup seals distribute peripheral pressure uniformly to prevent oil leakage in hydraulic clutch release devices.

Segmented fluid introduction and dynamic pressure generation grooves prevent startup wear while maintaining seal integrity.

A vacuum valve seal uses a metallic carrier with defined depressions filled by polymer material to create mechanical interlocking.

Elastomeric seal lips absorb energy from liner motion while the U-shaped retainer constrains radial run out to prevent oil leakage.

An electrodynamically suspended seal uses electromagnetic levitation to maintain a stable gap between rotating and stationary components.

Dual-walled turbine seals mitigate crack propagation and air leakage by controlling cooling air flow through metering apertures in the outer wall.

Isolated hydrostatic ports maintain a thick fluid-film that accommodates thermal deformation and misalignment while reducing machining costs.

Elastomeric end seal features a curved rotary portion that decreases in thickness from the outboard to the inboard edge of the developer roll.

Form-fit latching tabs on a stiffening ring secure the bellows, eliminating loose frictional connections that cause corrosion and high production costs.

A fixture expands sealing rings via resilient pins to secure elastic components on electronic devices.

Segmented elastomeric gasket with rigid insert prevents torque drop while maintaining environmental seal integrity.

Bellows springs bias endplates apart while managing thermal stress in high temperature environments.

Flange notches and weather strip connection walls stabilize the weather strip attitude, eliminating metal inserts to simplify the structure while blocking gaps.

Segmented sealing lips with a thickness gradient compensate for manufacturing tolerances while maintaining reliable contact under radial pressure.

Connecting strands engage recesses to prevent slot gaping, eliminating complex gluing processes for easier core removal.

Segmented rubber packing prevents seal surface displacement and conducts frictional heat to the housing, avoiding fluid leaks.

Conductive elastomer ribs and a recess seal handheld devices against interference, reducing weight and complexity.

A turbine seal design enables on-site maintenance by allowing removal without engine disassembly.

Segmented hydrostatic face seals with honeycomb backup structures maintain pressure differentials during primary seal failure, reducing parasitic losses.

Nested metal jackets encase a kammprofile and O-ring to maintain sealing integrity under high load without structural damage.

Segmented lateral tracks extend beyond the sealing perimeter to increase opening size while controlling noise and vibration.

A corrugated volume compensation space secures the annular seal within the groove without auxiliary support rings.

Segmented backing teeth provide axial support while selectively contacting the shaft during transients, preventing mushrooming and bristle wear.

Integrally formed beltline end pieces connect to window supports, blocking air leaks and noise transfer while maintaining operational flexibility.

A pre-assembled coupling device uses a protrusion-depression interface to restrict ferrule rotation during installation.

A passive clearance control system uses a geometrically shaped land to maintain constant gap height between rotating and stationary components.

Directional grooves in sealing face dimples constrain cavitation-induced streak-like fluid flows, preventing leakage regardless of differential pressure.

A bearing protector seal uses a self-compensating air supply regulator to prevent powder penetration and contaminated air entry into rotating equipment.

An outer housing recess grants external access to the inner sealing unit opening, eliminating manual tilting during buffer exchange.

A segmented sliding seal uses slots to allow arc segments to deflect radially and maintain contact with mating surfaces.