Valve Drives TRIZ Cases
- Cam Follower Assembly for Cylinder Deactivation
A cam follower assembly uses a spring seat and tower to enable sliding motion relative to the cam lobe.
- Axial Cam Shifting Position Detection via Hall Effect Sensor
A controller detects carriage position using a magnetic marker and Hall effect sensor for precise valve lift control.
- Integrated Plastic Housing for Electromagnetic Actuator Cost Reduction
Encapsulating the solenoid device within a unified plastic element eliminates separate metal sleeves, reducing production costs and installation complexity.
- Axial Cam Shifting Valve Assembly with Lost Motion Device
A valve train assembly uses an axial shifting cam and a lost motion device to perform discrete valve lift events.
- Hydraulic Valve Mechanism Variable Opening Times
Segmented cam protrusions enable stable mode switching for exhaust thermal management without complex additional mechanisms.
- Pigtail Harness Segmentation for Valve Timing Stress
Variable-length pigtail harness segments absorb vibration stress near the power-feeding brush, preventing disconnection during assembly.
- Split Rocker Shaft for Engine Valvetrain
A split rocker shaft supplies independent pressurized oil to high and low lift rocker arms.
- Variable Valve Duration Camshaft Mechanism
A continuous variable valve duration apparatus adjusts opening duration using rotatable cam portions and sliding housings.
- Asymmetric Valve Drive Mechanism for Compact Internal Combustion Engine
Inclined cam surfaces and asymmetric rocker arm support pins resolve interference between intake and exhaust valves while securing increased rocker arm length.
- Valve Drive Curved Contours Reduce Hertzian Pressure
Curved contact contours in the valve drive mechanism eliminate edge carrier issues and reduce Hertzian pressure through axial self-guidance.
- Valve Train Rocker Arm Biasing for Engine Brake Lash
Biasing assemblies apply force to rocker arms following engine brake lift cams, reducing noise and wear from free tilting movement.
- Actuator Valve Asymmetric Piston Prevents Stalling
Unequal surface area configuration on the actuator valve piston eliminates central position stalling to ensure continuous pump operation.
- Valve Timing Adjustment Device Axial Deformation Control
Segmented rotatable body isolates axial force deformation to prevent friction deterioration in valve timing adjustment devices.
- Multi-Cylinder Engine Valve System Axial Cam Switching
A multi-cylinder engine valve system uses common and individual operation members to move cam element sections axially for efficient switching.
- Camshaft Tool Accommodation Surfaces for Assembly Torque Management
Tool accommodation surfaces on camshaft functional elements distribute tightening torques during assembly.
- Linkage Control Device for Blood Gas Analyzer
A linkage control device integrates a rotating cam with bosses to drive multiple valve components in a blood gas analyzer.