Plungers TRIZ Cases
- Piston Top Land Depression for Ring Insert Stress Relief
A circumferential depression in the piston top land absorbs combustion stress, reducing tensile loads on the ring insert bonding layer.
- Undulated Silver Alloy Piston Skirt for Engine Friction
An undulated silver alloy coating on the piston skirt retains lubricating oil while reducing sliding resistance between the piston and sleeve.
- Brake Caliper Piston Twist Prevention Reinforcement
Asymmetric drive nut profiling prevents plastic deformation in brake caliper pistons, blocking unauthorized resetting movements.
- Equalizer Bar Pin Mounting for Tracked Vehicle Roller Frames
Segmented pin and fastener design reduces joint complexity while maintaining strength to prevent seizure under severe loading.
- Fuel Pump Lobe Design for Constant Velocity
A lobed drive shaft profile provides constant velocity during the compression stroke, resolving non-constant velocity issues in high pressure fuel pumps.
- Piston Assembly Stiffness Insert for Pneumatic Rigidity
Composite piston assembly uses annular metal insert to resist deformation under high pneumatic pressures while maintaining low weight.
- Die-Casting Piston Lubrication Circuit Sealing
Interlocking ducts deliver pressurized lubricant to the piston sealing area, preventing metal intrusion and reducing consumption.
- Sprayer Pump Connecting Rod Multi-Level Latching
Multi-level latching prevents disengagement under impact forces, ensuring reliable operation and simplifying assembly.
- Groove Forming Tool for Cylindrical Surface Roughening
A groove forming tool creates intersecting axial and circumferential grooves on metallic workpieces through sequential axial movement and rotation.
- Piston Skirt Coating with Carbon Fibers for Friction Management
Polyamide-imide coatings reinforced with carbon fibers dissipate frictional heat, resolving substrate adhesion trade-offs during mixed friction startup.
- Piston Skirt Dimples for Friction Reduction
Dimples in the resin coating retain oil to prevent wear under high pressure.
- Multi-Capacity Hydraulic Cylinder for Variable Load Speed
Segmented piston rods create variable chambers that adjust force and speed automatically, reducing fuel consumption in excavators.
- Diamond Chromium Piston Coating for Diesel Engine Wear
A diamond dispersed chromium composite coating protects diesel engine pistons from friction and cavitation damage.