Valve Arrangements TRIZ Cases

A splined interface connects a camshaft phaser to a concentric inner tube for variable valve timing actuation.

Fluidically coupled actuator devices enable simultaneous cam carrier displacement through a shared supply line.

Segmented internal and external bearing shell grooves seal the clearance gap under load while routing oil to secondary consumers.

Adjusting crankshaft phase via hydraulic vanes resolves the trade-off between dynamic port timing adaptability and mechanical construction simplicity.

A single actuator adjusts a cam follower between axial positions using selective engagement elements and sliding guides.

A valve gear switching mechanism uses aligned pin holes to move rocker arms between connected and disconnected states.

An intermediary cap and connection member allow controlled swinging arm movement while suppressing tip displacement to reduce contact abrasion.

Segmented radial guidance reduces camshaft installation space using rolling bearings on engine components, eliminating oversized sliding bearing requirements.

A cam follower roller device uses a separate friction element mounted axially between the roller and body to reduce direct contact.

Controller offsets intake air volume changes caused by variable valve target adjustments, stabilizing torque output during reference position learning.

Integrating a permeable textile layer with an impermeable foil creates a unified valve that reduces part count while maintaining rapid inflation reliability.

A unitary valve actuator housing integrates a piston and position sensor to simplify assembly.

A camshaft assembly method inserts sliding cam pieces into closed bearing bridges using a staged connection sequence.

A method corrects intake valve opening and closing angles based on estimated timing clearances between valves and rocker arms.

A coupler mechanism dynamically engages or disengages cam lobes to control valve operation without additional hardware.

Adjusting intake valve closure timing with a CVVD device improves torque responsiveness while preventing fuel economy losses from throttle lag.

A variable valve device adjusts intake valve timing while maintaining constant maximum lift.

Bolted load cells and solar power eliminate complex cable installation, enabling robust bulk material tracking on movable silos.

Controlled exhaust fuel injection generates heat patterns to identify NOx purification device and oxidizing catalyst failures without extra hardware.

A hydrophobic parylene layer on the valve seat prevents adhesion to the hydrophilic gate film, resolving sealing versus operation trade-offs.

A valve assembly adjusts lash using gas pressure profiles measured during engine cranking.

Mechanical ratchet on multi-part locking cover rotates rotor to central position independent of pressure medium viscosity.

Channel holes in the valve seat fixing member eliminate wear debris from groove edges, maintaining hermetic sealing between primary and secondary ports.

Localized surface treatments on the aluminum alloy valve seat improve wear resistance and sealing effectiveness against wastegate poppet interaction.

Extraction separates the rotation-preventing member from the cylindrical portion, increasing sliding distance and simplifying finish processing.

Radial compression of the septum prevents air and fluid leakage during needle engagement in inkjet printer supply systems.

A valve arrangement monitors operating state using a single pressure sensor to measure drive chamber pressure and analyze pressure changes over time.

Segmented rocker arms with diamond-like carbon coating enable seamless mode switching, reducing fuel consumption while maintaining durability.

A positive displacement fluid lock port uses a resilient conduit and biasing member to occlude the lumen upon syringe disconnection.

Merging a solenoid valve into the cam cap eliminates separate housings, reducing weight and production costs while enhancing diesel engine brake performance.

A gaseous flow adjusting interface with individually controllable nano-holes manages micro-flows at atmospheric pressure.

A valve timing control apparatus uses a dual lock mechanism to restrain relative rotational phase between rotary bodies.

A solenoid valve issues purge pulses synchronized with crank angle position to remove entrained gas from hydraulic control passages.

Remanufacture fuel injector tips by blocking eroded spray orifices with laser welding and forming new ones to restore flow specifications.

Segmented valve bridge lever reduces actuation force and prevents lash adjuster extension during braking.

Hydraulic lost motion system regulates valve seating velocity via selective fluid communication through a specialized catch piston.

A dished pin housing bottom surface redirects impact forces away from the roller center during latch ejection events.

Separate power supplies for the control unit and limit signal transmitter reduce device complexity and investment costs in pneumatic valve positioning systems.

Dynamic threshold adjustment resolves false knock indications during variable displacement mode transitions, preserving fuel economy.

Sealing both fluid line ends with a single valve maintains constant pressure on the liquid plug, preventing evaporation and volume loss during heating.

A spiral spring design with circumferentially displaced coil contacts increases natural frequency to prevent resonance.

Segmented tappet housing sections connect via a central rod piece to achieve long installation lengths without deformation, ensuring precise guidance.

An EGR flow rate estimation apparatus calculates effective opening area through learning to maintain accurate control characteristics.

Parallel bores in the yoke section drain excess lubricant to eliminate adhesive friction and improve response time.

Adjusting intake valve lift profiles across V8 cylinder banks equalizes specific work output, reducing rotational non-uniformity at idle.

A control device limits supercharging pressure based on mechanical compression ratio to prevent excessive cylinder inner pressure.

An annular seal in a groove creates a sliding sealed engagement between nested tubes, preventing oil leakage caused by engine vibration.

Segmented selector cams on nested shafts enable per-group control of dual body rocker arms, resolving the trade-off between adaptability and device complexity.

Electronic control device moves hydraulic valve spool using prescribed current to prepare phase lock mechanism for release.

A valve drive device uses a displacement body to shift cam units axially for compact construction.