Valve Arrangements TRIZ Cases

A sensor links actuator movement to LEDs, using a mirror to redirect light for clear position indication without complex mechanics.

Switching from variable to fixed cylinder deactivation patterns reduces valve actuator state change frequency and extends component life.

Axial displacement of segmented cam sleeves deactivates multiple cylinders simultaneously, reducing device complexity and component count.

A normally open hydraulic lash adjuster selectively transmits force between a rocker arm and valve bridge.

A shaft spring presses an exhaust rocker arm protrusion to maintain constant distance between opening units in a compression release engine brake.

Applying axial pressure to the base portion during swaging generates residual stress that strengthens holding force without additional fixation mechanisms.

A wireless opening meter measures valve parameters and diagnoses failures without high-spec positioners.

Inner piston actuates exhaust valve to decompress cylinder, reducing battery power requirements during cold start-up.

Geometric interlocks replace clamping forces to prevent undesired contact between sliding cams and grooves during engine vibrations.

A switchable electronic circuit enables an actuator USB interface to operate as either a host or device.

A capillary valve prevents fluid interference during septum opening, reducing power and time required for reliable valving.

A switchable roller finger follower uses pre-assembled outer arms to simplify engine valve train construction.

Core-hardened bearing pins with radially widened ends eliminate circlips and housing deformation in lift transmitting components.

An injection cooling device regulates steam temperatures during auxiliary firing load changes.

Independent exhaust passages reduce cylinder interference while long valve open periods suppress preignition.

Controller adjusts engine valve timing based on in-cylinder fuel signals to enable operation across diverse natural gas compositions.

Retarding intake valve close timing at low speeds stabilizes partial compression-ignition combustion, improving fuel efficiency and torque performance.

On-board sampling device evaluates data quality measures to prioritize transmission of useful diagnostic samples, alleviating network bandwidth consumption.

Pressing sections on the cover plate separate adhesive layers to open channels, eliminating external micropumps required for flow induction.

A lost motion mechanism attaches via a radial protrusion nested within the support structure.

A deactivatable rocker arm transfers valve lift profiles through a pushrod system using castellation assemblies and actuators.

Exhaust valve timing transfers compressed gas between cylinders to increase braking power while managing valve control complexity.

Composite alloy system with controlled inclusions boosts tensile strength to 3000 MPa, overcoming fatigue limits of conventional CrSiV steels.

Segmenting the flow channel via a dedicated blow passage prevents removed contaminants from reaching the outlet during cleaning cycles.

Segmented exhaust ports route blow-down gases to the turbocharger and residual gases to the catalyst, reducing cold start emissions.

Electronic transducer replaces manual feeler gauges to eliminate measurement errors and improve engine maintenance efficiency.

A retaining member blocks pin translation in a cam follower, eliminating costly caulking operations and reducing manufacturing time.

A rocker arm with a variable-width stroke transmission surface reduces mass moment of inertia.

Pneumatic valves in a microfluidic chamber isolate single cells, resolving the trade-off between throughput and measurement precision.

Reduced cross sections at axial ends alleviate contact pressure while a uniform circular section preserves hydrodynamic lift.

A fluid handling assembly uses flow measurements to adjust relative valve positions for precise control.

Radial stoppers on the driven-side rotator limit axis tilt against engine vibrations, reducing frictional wear and noise in the valve timing mechanism.

A UCST polymer fluid gate controls aqueous flow in microfluidic devices through thermal phase transitions.

Alternating operational modes maintains exhaust gas temperature within the required range for effective aftertreatment system operation.

Variable timing control maintains exhaust overlap at startup to reduce unburned hydrocarbon emissions while preventing backfire risks.

Flux concentrators channel magnetic fields from a moving magnet to Hall effect sensors, reducing device complexity and power consumption.

A heater substrate with resistive elements delivers controlled thermal cycling to microfluidic reaction chambers.

A variable valve rocker arm switching mechanism uses a state holding mechanism to maintain connecting pin positions without continuous power.

A unified swing shaft with an eccentric portion synchronizes valve timing across cylinders, eliminating assembly errors from separate link mechanisms.

Dynamic PWM adjustment reduces static friction in low-temperature CVVT systems, ensuring reliable plunger operation and improved fuel efficiency.

A sliding rocker arm replaces roller bearings in a hollow camshaft valve drive to reduce manufacturing costs.

Dimpled oil reservoirs on rocker arm sliding surfaces transition boundary lubrication to fluid lubrication, reducing friction loss.

A controller adjusts pressure reducing valve output based on time-dependent flow rate parameters.

A variable valve mechanism uses a lock pin and input arm to control switch timing via electromagnetic actuation.

Auxiliary terminals trigger self-calibration routines, eliminating external tool requirements and reducing installation complexity.

Coupled release elements and a switch rod reduce component count and mounting space while maintaining independent valve control through phase offset.

Separating the lost motion spring from the rocker arm reduces component weight while a guide shaft prevents bending and high-speed surging.

A valve position indicator uses a main rotation axle disc with teeth to drive a gear wheel for discrete open and closed signals.