Valve Arrangements TRIZ Cases
- Piston Support Ring Relief-Milled Design for Extrusion Control
A relief-milled support ring integrates with the piston body to reduce radial play and minimize piston ring extrusion risks.
- Tubular Camshaft Helical Oil Separator Dynamics
A tubular camshaft integrates a helical oil separator with a pressure-responsive flow-blocking element to adjust the internal cross-section.
- Coupling Device Connection State Sensing via Magnetic Flux
A coupling device uses a magnet and sensor to detect magnetic flux changes as the valve moves between connected and unconnected states.
- Valve Actuation Using Dither to Reduce Hysteresis
Dither superposition reduces electromagnetic hysteresis and static friction in cooling valves, improving actuation accuracy.
- Electrowetting Membrane for Variable Pore Surface Control
Applying an electrical field changes the contact angle of a porous membrane, reducing transport pressure and preventing residual liquids.
- Switching Roller Finger Follower Integrated Lubrication
Integrated fluid passages in a switching roller finger follower deliver pressurized oil to the cam roller, reducing wear at the cam shaft lobe interface.
- Hydraulic Camshaft Adjuster Rotor Axial Pre-tensioning
Axial pre-tension via a central screw eliminates connection tensions and deformations in two-piece rotors, enhancing stability.
- Variable Valve Lift Apparatus with Eccentric Cam Control
Eccentric shafts and connecting links adjust the output cam position to vary valve lift, resolving fixed cam limitations across engine speeds.
- Continuous Variable Valve Duration Camshaft Mechanism
An eccentric slider mechanism varies camshaft speed to adjust valve opening duration, resolving the trade-off between adaptability and device complexity.
- Engine Retarder Dual-Mode Exhaust Valve Control
A retarding system switches exhaust valve timing between compression release and bleed modes to adjust braking force.
- Optical Heater Microfluidics Valve Actuation
An optical heater melts a meltable material barrier in a microchannel, eliminating electrical connections and reducing device complexity.
- Valve Train Device Axial Space Reduction
Radial displacer insertion eliminates shift gates, reducing axial installation space while enabling rapid position switching.
- Combined Plug-Sensor Wheel for Camshaft Sealing
A combined plug-sensor wheel integrates axial sealing and position detection into a single sintered component.
- Active Engine Mounts for Skip Fire NVH Reduction
Active engine mounts adjust stiffness to absorb vibration, mitigating noise and harshness caused by cylinder output level modulation.