Piston Rings TRIZ Cases
- Hydraulic Percussion Sealing Device Pressure Peak Reduction
A converging protective surface forms a progressive nozzle that reduces pressure peaks and frictional heating on the sealing lip.
- Hydraulic Brake Mechanism With Integrated Shifting
A hydraulic brake mechanism integrates shifting into the housing for ergonomic control.
- Split Ring Side Rail Protrusion for Engine Oil Control
Offset protrusion on split ring side rail scrapes oil during downstroke while larger radius surface reduces friction during upstroke.
- Iron-Based Thermal Spray Powder for Wear-Resistant Coatings
Optimized iron-based thermal spray powder lowers melting points and energy consumption while maintaining oxidation resistance through controlled alloying.
- Cylindrical Slide Bearing for Vibrational Wear Resistance
Specified radial crushing strength and compressive deformation rates enable the bearing to resist striking wear from engine vibrations.
- Segmented Oil Ring With Coil Expander For Friction Reduction
A segmented oil ring uses a coil expander to stabilize radial pressing force against cylinder walls.
- Fe-based Piston Ring Coating for Thermal and Wear Management
Thermally sprayed Fe-based piston ring coating balances wear resistance and thermal expansion mismatch in large 2-stroke engines.
- Brake Master Cylinder Seal Groove Inclination for ESP Fluid Replenishment
Inclined groove faces facilitate seal lip separation and tilting to ensure rapid brake fluid replenishment during ESP vacuum conditions.
- Tapered Piston Ring Radial Channels Combustion Pressure
Radial channels transfer gas to balance pressure forces, preventing ring collapse and reducing friction in reciprocating engines.
- Split Dynamic Seal for Hydrostatic Actuator Low-Temperature Reliability
Dual-lip seal design leverages pressure differential to activate sealing without external heating, resolving low-temperature reliability issues.
- Oil Control Ring Lamella Tapered Section Design
Tapered lamella sections on an oil control ring generate directional radial forces to balance lubrication sufficiency against excessive oil consumption.
- Helical Backup Element Radial Expansion for Extrusion Resistance
Composite helical backup elements convert axial compression into radial expansion, resisting seal extrusion in high-pressure hydrocarbon recovery applications.
- Cylinder Cup Seal Axial Movement Restriction
Elastic projections on a cylinder cup seal restrict axial movement, preventing ineffective piston stroke variations during rapid return.
- Piston Ring Composite Coating for Bimetallic Effect Compensation
A piston ring with a composite coating featuring an intermediate layer balances thermal expansion differences between base and wear protection materials.
- Piston Ring Coating with CrN and NbN for Wear Resistance
Chromium Nitride and Niobium Nitride coatings on piston rings prevent delamination under high load while reducing wear rates by 50%.
- Axially Stabilized Two-Part Piston Ring Design
Elastic axial stabilization element presses base body against groove flank to resolve sealing versus mobility trade-off.