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.

A plunger adapter with a sandwiper collar directs well fluid particles away from the pump barrel to prevent mechanical damage.

A piston bearing structure uses a pressure relief groove to equalize fluid pressure across backup wear rings.

A guide ring mounted in a piston groove inhibits radial movement of the sealing component to maintain axial alignment.

Hardened wear rings on downhole pump plungers reduce sand abrasion, preventing fluid leakage and extending operational life in sandy wells.

Bent anti-twist projections on the spring support sections engage metal rings to prevent rotation, reducing wear caused by component instability.

A nozzled flow connection in the piston ring groove delays pressure equalization between the cylinder chamber and the groove space.

An inclined guide surface and center cored bar tool simplify high-stiffness seal installation, eliminating complex deformation processes.

Diamond-like carbon coatings on piston rings reduce wear and oil consumption while extending service life.

A vehicular hydraulic braking pump uses a ramped seal face to trap high-pressure fluid and enhance sealing contact area.

Optimized chromium nitride piston ring coating reduces micro-crack formation by balancing internal stress absorption against external shear forces.

Laser-ablated pyramids on a hard ceramic layer reduce contact area to abrade vane tips, preventing rotor shaft burn through from thermal runaway.

Segmented hard base and porous top layers resolve the wear resistance versus break-in performance contradiction, reducing blow-by.

A multi-layer diamond-like carbon coating system on piston rings provides wear protection and mechanical stabilization through segmented hard and soft layers.

A hydraulic brake apparatus uses a communication flow path to guide working fluid and apply damping forces.

Ion plating deposits a hard film on the tapered piston ring surface, eliminating nitriding costs while maintaining wear resistance.

An elastic hard carbon coating prevents particle dropout and maintains cylinder smoothness by eliminating metal bonding with the aluminum alloy.

Powdered metal epoxy filling cures at ambient temperature to eliminate air voids and boost heat conduction between the bushing tool and cooling hole.

Integrally molded piston and rod assembly with resin elastic member reduces part count and friction noise in brake cylinder apparatus.

Tungsten carbide particles in a nickel binder create a composite coating that balances seizure resistance with workability.

A piston ring with a wavy circumferential groove generates hydrodynamic pressure to redistribute lubricating oil across the running surface.

Tandem hydraulic pressure supply device with balance valves and inspection mechanisms stabilizes pressure balance and detects leaks.

Aligned nanofibers in a resin film suppress aluminum adhesion on piston rings, preventing groove wear and blowby.

A sliding element coating uses layered diamond-like carbon to balance friction and wear resistance.

Segmented a-C:H:Me layers reduce internal stresses to enable thicker coatings, extending piston ring service life beyond thin underlayer limits.

A pressing member attached to a wind turbine part rotates relative to the bearing seat to compress the seal into position.

Dual-tapered wire geometry accelerates contact surface formation, reducing oil consumption and friction in piston engines.

Superatmospheric nitrogen sintering prevents chromium nitride decomposition, enabling thicker thermal spray layers with superior wear resistance.

Localized reliefs on U-shaped seal lips allow fluid communication between inner and outer surfaces, preventing vacuum formation that causes lip sticking.

Segmented chambers in the master cylinder allow direct fluid introduction to biasing areas, resolving air bleeding difficulties while maintaining pedal feel.

Segmented piston geometry creates radial gaps for fluid inflow, eliminating complex bores while maintaining reliable chamber sealing.

A brake piston cut-out section introduces fluid between moving parts, reducing stiction and improving responsiveness while preventing air entrapment.