Engine Seals TRIZ Cases

Diamond or nitride coatings resist Fe2+ adsorption to stabilize leakage rates in primary circuit shaft seals.

An asymmetric sealing groove geometry secures a hydraulic piston lip seal against tilting while maintaining low friction for reliable brake system operation.

Segmented sealing member sections reduce radial stress during installation, maintaining inner ring regularity and preventing raceway deformation.

A bearing assembly uses interchangeable support cartridges mounted on a universal end plate to enable flexible inboard and outboard configurations.

Olefin copolymers compatibilize bitumen and elastomers to prevent plasticizer migration at horizontal vertical joint interfaces.

A valve portion adjusts pumping rates of asymmetric spiral channels to prevent lubricant leakage to the non-lubricant side during reverse shaft rotation.

Segmenting waterproof members prevents deformation under locking pressure, ensuring reliable liquid and vapor resistance in electronic enclosures.

Inversely directed dynamic pressure generation grooves on a floating ring maintain concentricity with a rotating shaft while reducing fluid leakage.

Segmenting the rotary part isolates spring pressure from the toroidal sealing member, preventing o-ring deformation and enhancing seal reliability.

A downhole metal seal uses protrusions and a ratcheting device to create a leak-proof joint between tubulars.

Three-dimensional box-shaped molded reinforcements with integrated fasteners eliminate sunroof edge gaps while maintaining structural integrity.

Nested locking components prevent disconnection of medical fluid lines by engaging threaded barrels without increasing structural complexity.

Annular sealing material with fork-shaped legs eliminates seal grooves, reducing device weight and assembly complexity.

Segmented interference fits prevent cupping deflection, minimizing lubricant leakage and wear in off-highway wheel drive assemblies.

Additional radial holes near the leading edge increase seal fluid pressure above coolant levels, preventing leakage caused by rotor shaft rotation.

Overlapping roof-side and pillar-side seal lips prevent water ingress under high pressure while maintaining seamless appearance.

A fluid seal assembly uses a bi-directional hydrodynamic face to maintain lubrication without direct shaft contact.

Ring-like projected parts on the die mold packing block fluid leakage through minute gaps while suppressing stress relaxation under low tightening forces.

An eccentric cam and spring assembly enable a single-stage pump to maintain constant horsepower output while reducing device complexity.

A bush assembly seal design protects the flange interface using a dedicated member and adhesive layer to block contaminant ingress.

An elastic axial leg rocks the seal to bring the dust lip into contact with the shaft, blocking airflow when the lay down lip lifts off.

Pre-forming the flange portion with an uneven shape compensates for molding pressure, preventing deformation and rust generation on the metal reinforcing ring.

A wound annular plate covers functional clearances between adjacent ring parts to maintain a gastight barrier.

Integrating a rigid ring with concavo-convex engagement prevents mouth opening at low temperatures, maintaining seal performance.

A wellhead casing seal uses an energizing port to deliver fluid that expands swellable packing material within an annular groove.

Slit reinforced plastic wear ring uses elastic deformation to bypass rigid metal bonding requirements, enabling quick tool-free installation.

Congruent inclined contact surfaces convert axial pressure into radial preload, resolving complexity and cost issues in variable-pressure sealing applications.

A sealing assembly uses elastomeric lips forming a V-shape to divert contaminants away from the main seal.

An elastic sealing frame accommodates battery volume changes through compressible surfaces.

Hemmed panel edges create a closely fitting connection using springiness, reducing parts count and cost while maintaining reliable airtightness.

An S-shaped elastic mouthpiece seals the drain hose inlet during vehicle motion, eliminating gurgling noises from air ingress without complex valves.

A magnetic bulkhead seal uses a spine and lateral webs to adhere tightly against cargo hold walls.

Threaded support posts position the mixing shaft in plumb orientation to reduce vibration and stress when the vessel wall is inclined.

A segmented vehicle panel uses a guide channel to position the outer strip independently of the carrier strip.

Dielectric elastomer layers expand under voltage to compensate for rubber seal creep and monitor distortion via embedded sensing.

A bearing assembly uses a controlled valve in a pressure equalization line to manage internal pressure.

A seal assembly uses a screw thread web structure to pump leakage fluid back into the sealed space during shaft rotation.

Segmented carbon rings replace labyrinth seals to resolve gap control issues, maintaining high delta P and reducing oil leakage.

Brush seals in rotary joints maintain pressure integrity, eliminating complex control devices and reducing wear during tire inflation adjustments.

Reciprocating blades cut inner and outer tracks on rotating cylindrical blanks to form ring-shaped parts without expensive dies.

Segmented U-shaped cup seals install into deep recesses without distortion, preventing rubber fusion with hot metal surfaces.

Resilient connector strips provide axial non-rigid support for split seal rings, enabling visual inspection and accurate alignment during installation.

Inflatable compartments and a carriage prevent dust ingress while enabling efficient paint removal on large structures.

Segmented sealing elements in the housing maintain diffusion tightness despite complex multi-barrier structures.

A centrifugal disk with radial bores recirculates lubricating oil to create a contactless shaft seal.

Segmented sealing elements adapt to varying rotor blade geometries, diverting rainwater to maintain dry maintenance areas.

A gas turbine insert assembly uses a reinforcing member to enhance rigidity.

Ramp surfaces convert rotation into linear compression, replacing screw threads to simplify sealing operations.

Merging frame and interior seals into one vulcanized component reduces part count while maintaining reliable sealing at the upper cowl frame.

Segmented ring seals with fluid communication channels balance pressure differentials across high thermal loads.