Valve Arrangements TRIZ Cases

Epoxy sealing and composite wrapping repair illicit pipe taps, eliminating hazardous cutting sparks and heat generation during removal.

Dynamic valve timing adjustments reduce low-speed engine vibrations by lowering compression ratio and combustion pressure peaks.

A microfluidic device uses a magnetic field to deform a membrane, creating a fluidic connection between cavities for reagent transport.

Electronic control unit switches combustion modes to reduce cylinder temperature and prevent abnormal combustion during switching failures.

Asymmetric reference-shape portion aligns hydraulic sleeves to eliminate frictional forces and stabilize vane rotor position.

A connecting element with a variable cross-section joins inner shaft and cam via interference fit.

A diagnostic module compares actual NOx sensor readings against estimated values derived from camshaft phaser and EGR valve positions.

Stator cavity with non-return valve supplies hydraulic fluid to pressure chambers.

Thermally stratified combustion layers enable reliable compression ignition of low cetane fuels, reducing emissions while maintaining heavy work vehicle torque.

A camshaft mandrel and cam piece join via interference fit during quenching heat treatment to achieve HRC58 surface hardness.

A dual camshaft structure uses a segmented base pipe to secure variable cams while maintaining outer shaft rigidity.

A camshaft adjuster spring forms two-line contact with its bearing to minimize wear and friction.

A control device outputs a switch request to move intake cam carriers using self-holding solenoids before engine shutdown.

A compression relief cam drives a hydraulic adjusting piston to open exhaust valves for engine braking.

Automated inspector measures fluid control valve switching time using pneumatic module and limited switches, resolving manual inspection precision issues.

An external valve connected to the combustion chamber supplies braking air without altering gas exchange or engine design.

A segmented electromagnetic actuator uses distinct materials to optimize magnetic permeability and mechanical wear resistance.

A camshaft phaser uses hydraulic pressure to rotate an inner vane rotor for precise valve timing control.

A spark ignition compression combustion controller manages valve timing to initiate flame propagation.

A hydraulic lash adjuster combines a lost motion arrangement with automatic compensation to manage engine valve train dynamics.

A gas inspection method measures downstream pressure and standard deviation to determine secondary valve opening degree without additional hardware.

Intermediary housing enables hot tapping on pressurized elbows by maintaining sealing reliability through segmented valves.

A fluid filter cap guides a drain pipe into a holding recess via an internal contact portion, preventing tilting and disengagement during insertion.

Through-holes stabilize the intermediate arm during assembly, eliminating rotation and simplifying head cover mounting.

Nested casings and a resilient ventilation plug reduce volume while maintaining sealing reliability for portable use.

Concentric locking ring prevents wave gear misalignment during assembly by engaging adjusting and drive elements without geometric modifications.

A liquid plug mediates flow between capillary valves in a rotating microfluidic device to enable controlled transport.

A sampling point valve uses a shape memory spring to advance a signal button for sterilization status indication.

A rocker arm incorporates a hydraulic lash adjustment piston that moves within a cavity wall to control valve lift.

Spool blocks reverse oil flow during engine stop, maintaining phase relationship and reducing restart noise.

A valve status display uses a rotating drag element to cover closed markings, preventing ambiguous position indication during transition.

A feeler gauge device uses a flexible panel attached to rigid arms for precise valve clearance measurement.

A link lever rotates on a swing arm to configure variable valve strokes and control times in piston engines.

A variable valve train uses a displaceable cam carrier with a second braking cam to actuate the exhaust valve, eliminating separate engine brake devices.

Merging lubricant ports into one extending structure reduces device complexity and production cost while maintaining abrasion protection.

A prechamber valve actuated by a shared rocker arm mechanism with dual-chamber pressure control.

A cam follower roller device uses nested support body flanges to secure the rolling assembly within the tappet bore.

A rotating ultrasonic probe inspects turbine valve seat joints without disassembly.

A control device manages variable valve timing using cam signals when crank angle input fails.

Segmenting the rocker arm reduces bearing loads during cylinder deactivation, lowering fuel consumption and component wear.

Early inlet valve closure lowers combustion temperatures and prevents knocking, enabling high thermodynamic efficiency without fuel enrichment.

A thermal energy recovery piston assembly uses a double-acting secondary piston to amplify pressure from vapor expansion.

A variable valve train uses a common pivoting actuator to adjust multiple valve strokes simultaneously through synchronized frame rotation.

Alternating magnetic charges in the trigger wheel enable precise rotational position identification, bypassing strict fabrication tolerance requirements.

A controller adjusts exhaust valve opening timing using cylinder pressure rate of change data.

Hydraulic diverter and check valves control oil flow between advance and retard chambers to position the camshaft phaser rotor.

A piezoelectric actuator drives a suspension plate through curvy vibration using an elastic bracket for structural support.

A variable valve control apparatus adjusts intake and exhaust timing to prevent simultaneous closure.