Valve Arrangements TRIZ Cases

Engine torque oscillations drive a lead screw phaser to vary compression ratio without electric or hydraulic actuators, cutting VCR complexity and cost.

Pressure sensors in an infusion line detect valve wear or failure from pressure spikes, helping prevent flow rate errors and unsafe drug delivery.

A deep-drawn sheet-metal flexspline uses die-formed outer teeth and flange openings to improve elasticity and load capacity without rework.

Direct camera inspection inside hydraulic components pinpoints wear on surfaces and edges, reducing ambiguous sensor analysis and maintenance delays.

An elastic latch and pressing rod simplify microfluidic valve actuation while improving reliable flow control and chip integration.

Printed flow-rate markings on the valve body let users set exact GPM directly, avoiding external charts while improving field accuracy.

Curvy vibration from a piezoelectric suspension plate creates pressure gradients for compact, quiet gas transfer in portable fluid control devices.

Controlled pressure pulses segment fluid in microchannels while flush integrated sensors improve direct optical or electrical detection.

Image-sensor feedback regulates channel flow rates to keep droplet volume, frequency, and pairing consistent despite viscosity and surface tension changes.

A radially removable clamping nest secures axial and angular positioning while easing camshaft assembly in restricted engine space.

A handheld calibrator combines pressure, temperature, flow, and signal functions to evaluate overall instrument error in real time.

Asymmetrical short-loop ink recirculation reduces air bubbles and pigment settling, helping printheads maintain flow and image quality after idling.

Constant-pressure liquid feeding and pressure sensing verify substitution line connection instantly, even during blood purification treatment.

A pressure-responsive disk check valve blocks backflow and isolates pressure pulses in liquid chromatography without adding pre-pressurization complexity.

Silane-modified glass valve seats minimize interfacial water leakage, raising seal resistance above 500 GΩ for single ion channel detection.

A deformable membrane opens a fluidic stop on demand, enabling reliable capillary transport of biological media without disturbing internal pressure.

A rotary valve and pump route samples and reagents through a microfluidic network for automated thermocycling assays with less user intervention.

Exhaust pressure modulates microfluidic valve states for precise fluid control and stronger haptic feedback in artificial reality systems.

A rupturing pin, plunger, or roller opens sealed reagent pouches to improve dry reagent transfer, hydration, and reaction efficiency.

Partial-stroke testing detects stuck or degraded control valves from process feedback, even when no position transmitter is installed.

Fiber-optic sensing tracks downhole valve member position from flow-generated acoustic patterns, reducing sensor complexity and enabling fault detection.

A deformable clamping section keeps friction radius constant and raises friction torque to reduce slipping in vehicle variable-speed gears.

A compound collar uses interference-fit and slip-fit lifter bores to maintain valve lifter alignment while allowing reciprocation.

A spiral fluid channel and surrounding cooling path evacuate air, solidify molten metal, and protect the vacuum pump in a compact valve.

Multiple rotating spout segments reposition the outlet and trigger valve opening or closing, improving faucet flexibility without handles or sensors.

Motor reversal opens the pressure relief valve at press end, avoiding excess force, jaw wear, elastic deformation, and wasted energy.

Controlled hardness and roughness at bolt joint surfaces suppress fretting powder, protect fatigue strength, and lower steel processing cost.

Structure-borne sound peaks reveal whether a fuel injector delivers small or large fuel quantities, improving engine control and emissions compliance.

Serial pneumatic microvalves separate reaction chambers on a compact chip, enabling rapid multi-index biochemical testing with low sample use.

A single differential pressure sensor replaces multi-sensor backflow testing setups, improving accuracy, usability, and field flexibility.

Multiple branch channels and pressure-responsive valves let a miniature fluid path accumulate and discharge more gas with controlled flow and pressure.

Sub-critical ferritic nitrocarburizing adds wear resistance to the lash adjuster body while preserving geometry and avoiding extra machining.

Baseline comparison of steam trap open and closed cycle data enables early leak or sticking diagnosis, reducing energy waste and downstream damage.

A pre-stretched non-elastomeric diaphragm cuts actuation work and latency in microfluidic valves and pumps by eliminating elastic restoring force.

Powered valves, sensors, and a volumetric chamber regulate CSF drainage in real time to avoid over-shunting and stabilize turnover rates.

An electric field disrupts fluid interfaces at channel intersections, enabling controlled droplet injection and coalescence in microfluidics.

An elastic valve seat changes gap height hysteretically to control fluidic resistance, cutting parasitic flow and backflow in a micro valve pump.

Dual parallel HIPS subsystems use actual pressure stroke and leak testing to verify flow line isolation before overpressure damages downstream equipment.

Powered valves, sensors, and a metering chamber deliver adjustable CSF drainage independent of patient pressure conditions.

Magnetic sleeves and sensors track subsurface safety valve flow tube position in real time, avoiding unreliable pressure spike indicators.

Immiscible fluid slugs cut reagent use and procedural time in PCR amplification and DNA sequencing while enabling precise small-volume handling.

A sealed control port holds back fluid until needed, reducing EWOD overfilling, dead volume, and throughput loss during droplet handling.

A reagent shuttle and disposable microfluidic cartridge automate sample handling and magnetic-particle detection for reliable testing outside labs.

Transverse gaps and a convex rolling surface let the cam follower roller tilt under misalignment, reducing edge stress and contact pressure.

An in-plane passage and valve layout cuts fluidic resistance in a MEMS pump, improving gas sensor sampling speed, precision, and integration.

A liquid separator and float switch detect diaphragm leaks while splitting exhaust airflow to limit backpressure and preserve pump efficiency.

Negative pressure in a branch channel creates counter flow to rapidly collect target microparticles while blocking non-target entry.

Independent microfluidic lanes replace batch PCR processing, enabling parallel polynucleotide amplification and real-time detection with faster results.

Predictive monitoring estimates actuator condition from command, drive, or position feedback signals to schedule maintenance and cut unscheduled downtime.

Registration features and capacitive pumping improve microfluidic alignment, flow stability, assembly, and sterilization in cartridge systems.