Output Power TRIZ Cases
- Hydraulic Cam Phaser Pressure Boosting at Low Engine Oil Pressure
Stored pressurized oil and a pressure-controlled cylinder help a hydraulic cam phaser shift quickly at low engine oil pressure.
- Cam Phaser Oil Pressure Boosting for Fast Valve Timing Shift
Stored high-pressure oil from an accumulator and pressure-controlled cylinder speeds cam phasing at low engine speed while cutting pump losses.
- Rocker Arm Oil Passage Layout for Smooth Valve Lift Switching
Two oil passages time hydraulic piston motion so rocker arms separate before valve lift interference, reducing abnormal noise and wear.
- Valve Timing Control Eccentric Spring Support for Reduced Vibration
A shaped support surface in the eccentric member stabilizes the spring, keeping gear-meshing force consistent and reducing high-speed vibration.
- Variable Force Engine Valve Actuation for Energy Efficiency
Auxiliary device varies closing force on engine valve, reducing energy consumption and vibration while maintaining reliable closure.
- Ignition Control Unit Adjusts Energy for Cylinder Flow Irregularity
An ignition control unit calculates an irregular flow ratio from secondary voltage to correct the ignition operation amount.
- Solenoid Hydraulic Valve Manifold Cylinder Deactivation
A solenoid-actuated hydraulic control valve manages pressurized oil flow to switching lifters for cylinder deactivation.
- Reset Valve Actuation via Segmented Cam Follower
Segmenting the reset valve control from the main rocker arm reduces structural rigidity requirements and component wear during engine brake operation.
- Variable Camshaft Timing Control via Position Estimation
A variable camshaft timing controller adjusts phaser duty cycles using estimated position data derived from a system model.
- Interchangeable Oil Control Valve for Engine Cylinder Actuation
An interchangeable oil control valve system minimizes design and assembly costs by using a single valve configuration for distinct cylinder positions.
- Variable Valve Timing Spool Reduces Lock Shifting Resistance
Internal drain paths in the spool reduce flow resistance, enabling quick lock mechanism shifting even at high fluid viscosity.
- Pneumatic Valve Actuation System with Auxiliary Pressurization
Auxiliary pressurized system transfers energy from secondary fluid circuit to primary circuit, reducing parasitic losses in internal combustion engines.
- Hydraulic Circuit Air Purging for Valve Deactivation
A dedicated priming gallery purges entrapped air through a relief valve, reducing mode transition times in variable displacement engines.
- Engine Brake Rocker Arm Castellation Mechanism
Castellation mechanism selectively opens one exhaust valve during braking to reduce valvetrain load while maintaining high braking power.
- Internal Combustion Engine Cam Profile Control for Cylinder Consistency
A control device manages valve-driving cam profiles across multiple cylinders to ensure uniform operation during switching events.
- Variable Valve Actuation Dampening Pressure Oscillations
An additional volume absorbs pressurized fluid when pressure exceeds a maximum threshold, reducing vibrations and extending component service life.
- Engine Torque Control via Zero-Acceleration Pedal Zone
A control device sets target acceleration to zero within a specific accelerator pedal angle range.
- Hydraulic Gas Exchange Valve Arrangement for Variable Closing Timing
A hydraulic control valve manages fluid outflow to adjust gas exchange valve closing speed and delay.
- Continuous Variable Valve Duration Apparatus for Engine Noise Reduction
A continuous variable valve duration apparatus adjusts opening timing via a worm wheel mechanism.