Valve Arrangements TRIZ Cases

An elastic chamber and pressure transmitter verify delivered lubricant pulse volumes, replacing inaccurate mechanical meters with precise pneumatic actuation.

A micromachined electrowetting valve uses hydrophobic patches to modulate surface tension and control fluid flow in microchannels.

Rotating cylinder resting states burn accumulated lubricant oil, reducing white smoke during transitions.

A precursor sol-gel solution with controlled water content forms oxide dielectric films via inkjet discharge.

Venting grooves channel trapped air from dead end regions to prevent operational interference and maintain reliability.

Electronic diameter gauge device inserted through scavenge air port measures cylinder liner inner diameter, eliminating time-consuming engine dismantling.

A control valve regulates oil flow to the main gallery by moving a valve body in response to upstream pressure.

A particulate filter system modulates exhaust oxygen concentration to maintain controlled regeneration.

A linear actuator with an actuatable pin engages slotted guide sections on a rotatable actuating body to drive axial displacement.

A rotating valve with an angled internal channel connects multiple fluidic conduits to enable serial fluidic operations.

A microfluidic oscillator pump coordinates fluid valves via an on-chip control signal to enable autonomous peristaltic pumping.

A spring retainer with a non-uniform annular surface distributes coil forces to secure the valve spring against the rocker arm body.

A switchable cam follower uses a floating journal to self-center within the valve train assembly.

A diagnostic method detects inlet valve blockages by injecting fuel and monitoring exhaust oxygen levels to verify combustion status.

An integrated valve assembly within the hydraulic pump reduces device complexity and manufacturing costs in compact camshaft timing adjustment systems.

A continuous variable valve duration apparatus adjusts opening timing via a worm drive mechanism.

Segmenting the microfluidic circuit into distinct functional regions reduces operator intervention while maintaining portability.

A microfluidic membrane with 0.1 to 50 μm apertures halts fluid flow via capillary forces until pressure overcomes surface tension.

A valvetrain switches between main and auxiliary cam profiles via a latch, resolving the trade-off between static simplicity and dynamic adaptability.

A camshaft driven pump delivers high-pressure fluid bursts to activate hydraulic phasers instantly.

A pre-delivery engine calibration adjusts the air/fuel ratio to reduce spark plug fouling during vehicle manufacturing.

Evaluating intake pressure profiles detects faulty outlet valves to prevent particulate filter regeneration and ensure emission compliance.

A hydraulic position indicator system uses a piston-cylinder mechanism to transmit choke valve stem displacement as fluid volume changes for remote monitoring.

Continuous variable valve duration devices adjust intake and exhaust valve timings based on engine speed and load conditions.

A microfluidic device initialization method separates a polymer film from a valve seat using positive and negative pressures.

An asymmetrical ram button engages the internal shoulder of a blowout preventer piston to distribute retraction forces across a larger surface area.

Radially stacked vanes resolve axial space constraints while maintaining actuation force through nested concentric rotors.

Hydraulic pressing of the retainer reduces roller gaps while thrust washers mediate axial force to maintain preload stiffness.

A hydraulic locking pin actuates a camshaft rotor to adjust valve timing, resolving the trade-off between control reliability and device complexity.

Silicone cushions isolate winding wire connections from coil vibrations to prevent tearing.

A steady rest supports a rotating valve component to establish axis congruity with the grinding apparatus.

A positioner calculates valve response time using stored time series data from a single full stroke operation.

Diamond-like carbon and black oxide coatings on cam follower rollers enable reliable oil-free operation under high load.

A rocker arm vent passage routes oil from the hydraulic lash adjuster inlet to an exterior area, enabling stable valvetrain operation.

Sequential camshaft timing adjustments prevent high valvetrain loads during variable valve timing transitions.

A control apparatus adjusts valve timing and fuel injection to maintain consistent combustion states across HCCI engine cylinders.

A valve timing control device detects phase positions using a mechanical detection protrusion and groove.

A welded high-pressure fuel pump roller tappet merges a guide sleeve and U-shaped holder to create a rigid structural assembly.

A switchable rocker arm incorporates a damper mass on an elongated activation arm to neutralize harmful oscillation energy through resonant frequency.

A male luer connector features a rotatable tip end and an internal occluding part that maintains a liquid-tight seal.

A gas pressure sensor assembly converts diaphragm rotation into an audible signal for remote monitoring.

Relocating the fixing member to a rigid top or bottom plate suppresses deformation from pressure differences, reducing frictional noise and stress on the pump.

Open and cylindrical hole portions in tappet flanges enable pin mounting without complex flange deformation.

A valve drive coupling unit uses a ball head and recess design to enable independent movement between switching armature and elements.

A linear oil supply passage delivers engine oil directly to hydraulic lash adjusters without bends or curvature.

A hydraulic rolling cylinder deactivation system uses a poppet valve operator to control engine valves.

Sequential actuation reduces switching means count while maintaining operational reliability.

Segmented plastic fluid vessels on a platform framework eliminate welded stress points and corrosion while increasing capacity.