Valve Arrangements TRIZ Cases

A hydraulic camshaft adjuster link accommodates axial tolerances and tilting between double shafts via a form-locking stator connection.

Assembled camshaft absorbs alternating torques via spline and press fit, reducing engine noise emissions.

An auto-commissioning method detects the bulk modulus over fluid volume parameter using existing pressure and position sensors in an electro-hydraulic valve.

A variable valve controller adjusts phase changing limits based on hydraulic oil viscosity to expand the valve timing range.

Segmented support shaft reduces axial installation space by enabling tooth-like intermesh for angular adjustment.

Tensioned locking clip legs enable axial installation of the electromagnetic control device, eliminating rotational movements and reducing required force.

A smaller ignition piston compresses the air-fuel mixture to open a relief valve, transferring high-pressure combustion gases to ignite the main chamber.

A rocker arm assembly adjusts valve lash using a lost motion shaft and adjusting screw to isolate the feeler gauge from spring force.

A valve unit controls oil passages in a continuously variable valve timing apparatus to maintain fluid circulation.

A central valve with an independent hydraulic passage controls fluid flow to a camshaft adjuster.

Thermal expansion enables pushing components onto a segmented shaft, preventing deformation of securing surfaces.

A sacrificial valve dissolves upon liquid contact to eliminate complex external triggers and simplify microfluidic device manufacturing.

In-series lost motion mechanisms segment the valve train to enable cylinder deactivation and early exhaust valve opening, reducing rocker arm stress.

Pivotable levers transmit axial plunger motion to thrust pins, eliminating delicate stop valves and flexible tongues that raise manufacturing costs.

Automated torque tool system measures valve lash using linear regression analysis to resolve manual measurement imprecision.

Segmented rocker arms with diamond-like carbon coatings reduce friction and mass to improve fuel economy while maintaining hydraulic lash adjustment.

A reverse-spring hydraulic lash adjuster manages exhaust valve motion during engine braking events.

Adapts valve actuating variables via charge specifications to correct camshaft adjuster tolerances, reducing emissions from residual exhaust gas errors.

Segmented U-profiles with large bending radii enhance fatigue strength in cold-formed sheet metal cam followers.

Sensor assembly in closure cap detects actuator piston position, triggering alerts to prevent wireline cable damage during downhole operations.

Estimating valve timing via cylinder pressure eliminates mechanical sensors, reducing system complexity and cost while maintaining control accuracy.

A composite internal combustion and steam engine recovers waste heat using superheated steam within a closed circuit.

A cam drive device adjusts motor excitation current based on rotation stop position to optimize power usage.

Radial bars and torque enhancer pockets in a rotary combustion engine minimize heat loss through intermediate linkages to improve fuel efficiency.

A lever and biasing unit store energy during actuator movement to activate a switchable valve train component when conditions permit.

Positioning bolt aligns gear phase during assembly, eliminating special tool requirements and reducing costs.

A sliding camshaft actuator pin position signal filter rejects electrical noise by establishing a dynamic window based on the actual output signal period.

A reinforcement member absorbs vane contact force to prevent partition portion deformation during extreme rotational phase limits.

Relocating the torsional spring reduces mass moment of inertia while maintaining cam contact.

Rotating the valve body eliminates large housings, reducing earth covering depth and simplifying assembly through upper openings.

A rocker arm mechanism with a connecting piston and linkage transfers cam motion to engine valves.

A microfluidic valve unit design eliminates injection holes to prevent weld-line defects and maintain device rigidity.

Flanged oil inlet holes enable efficient waste removal during punching, eliminating burrs that compromise runout precision in split tappet designs.

Localizing rotor diameters accommodates lock pins without expanding the housing, resolving the trade-off between reliability and conversion responsiveness.

Local quality ribs on the pushrod shaft enhance buckling resistance while reducing weight and volume for space-constrained engine installations.

Integrates locking pins into the rotor body to secure cam phase adjusters, eliminating centrifugal unlocking risks without adding mechanical complexity.

Dynamic spark timing based on real-time burn duration measurements improves fuel economy during transient conditions.

A controller derates drivetrain torque based on detected traction control events to optimize regenerative braking utilization.

A metallic sealing element uses compressible intermediate members to store elastic energy during axial compression.

Segmented rocker arm rotates inner portion relative to outer portion, resolving adaptability versus complexity trade-off.

Dual output camshaft adjuster braces elements via an expanding spring to maintain central positioning independent of oil supply.

Adjusting element with coupling pins transfers axial movement between sliding cam elements, reducing installation space and manufacturing costs.

Segmented planetary members adjust radial gear contacts to eliminate backlash at multiple meshed portions, preventing abnormal sounds and damage.

A dual-cam exhaust valve arrangement uses hydraulic actuation to control lift and timing.

An integrated air venting passage removes trapped gas from piping systems, reducing false alarms caused by air accumulation without disrupting normal operation.

A valve clearance adjustment method measures cam profiles to identify precise rotation angles for rocker arm positioning.

A roller assembly maintains tight clearance between rolling elements and a pin surface to extend bearing life in diesel engines.

A welding jig with high heat conductivity seals piercing-induced burrs in cylindrical walls to create clean fluid discharge paths.

A continuous variable valve lift device adjusts intake valve profiles via a rotatable camshaft and control shaft to optimize engine airflow.