Piston Rings TRIZ Cases

Partial material removal on active rail flanks creates precise scraping edges, resolving grinding limitations for sub-2 mm piston ring profiles.

Composite materials prevent organic solvent leaching while elastomeric components ensure sealing reliability for controlled active agent release.

A piston ring uses a periodic multilayer system of metal nitrides to absorb crack propagation and improve ductility under high stress.

Asymmetric piston ring groove geometry compensates for heat-induced warping to prevent radial edge contact and rotation.

An annular seal adds a static lip to trap fluid, using piston compression to flush particles and prevent leaks in brake master cylinders.

A single scraper web employs a helical running surface to resolve the trade-off between oil scraping capability and friction.

Vulcanizing the sealing ring onto the piston eliminates specialized machining and separate replacement, reducing production and mounting costs.

Curved lands prevent edge contact with the bore, reducing friction and preserving seal integrity during reciprocation.

A segmented seal unit uses overlapping ring bodies to create a labyrinth structure that enhances gas sealing in internal combustion engines.

Keyed piston rings mitigate gas leakage past the bolt carrier, preventing overheating during sustained fire.

A resilient piston groove seal prevents gas blow-by by compressing under igniter pressure, eliminating pyrotechnic complexity.

Reservoir holds hydrophobic medium to repel salt deposits and intercept corrosion pressure under elastomer seals.

A combined oil ring with a tapered slide contact part reduces sliding resistance and optimizes oil scraping efficiency.

A steel sliding member features a hard coating with a graded Young's modulus distribution to enhance wear resistance.

A plastic primary piston uses a pressed sheet metal insert to provide mechanical resistance and centering within the master cylinder bore.

A laminated hard carbon film on a piston ring resolves adhesion and process complexity trade-offs by controlling lamination pitch and bias voltages.

Mirror-symmetric sealing rings press against a piston and groove wall to block fluid flow in annular-gap valve assemblies.

Tight top land clearance stabilizes the top ring through radial channels, preventing collapse while reducing carbon deposits.

An asymmetrically barrel-shaped contour with a localized oil stripping edge reduces friction losses and prevents oil carbon formation.