Valve Arrangements TRIZ Cases

A guided needle, vent opening, and seal safely release grease fitting pressure while reducing operator exposure and valve damage.

A C-shaped spring preloads and axially secures the clamping gear, cutting parts, easing assembly, and reducing camshaft adjuster noise.

A pressure-responsive direction control valve shuts the external lubrication passage during dry-run to prevent helicopter gearbox oil leakage.

A bypass line keeps the dew point meter dry while limiting chamber air supply, cutting dry air use and preventing condensation across temperature shifts.

A screw-driven plunger manifold enables intuitive incremental drug-port flow control while eliminating dead spaces for complete flushing.

A diaphragm valve and series pneumatic pressure gradient cut impact load and wear in multi-channel coating head control.

A dual-valve recirculation layout returns excess fluid before the heat exchanger to cut pressure loss, fuel use, and cooling load.

A bell crank and push-pull cable move the valve pin remotely, cutting mold assembly height while maintaining precise molten plastic flow control.

Oblique movable guide elements redirect melt flow so fibers cross weld lines, strengthening injection-molded sealing plates without extra finishing.

An electric field disrupts droplet interfaces in microfluidic channels to control fluid exchange and coalescence despite surface tension barriers.

Stimuli-responsive LCP filaments enable self-actuating microfluidic flow control without bulky external pumps or valves.

A flexible membrane uses pressure differences to passively regulate bidirectional micro-scale liquid and gas flow without bulky external control.

A liquid separator and float switch detect diaphragm leaks while keeping exhaust airflow open to reduce backpressure and protect pump efficiency.

A ferromagnetic rubber membrane valve automates microfluidic flow control for nucleic acid extraction and purification in portable test cartridges.

Parallel tortuous flow paths cut forward parasitic losses while preserving high reverse-flow resistance in large piping systems.

Lateral and vertical sheath-flow geometry aligns particles in microchannels with less fabrication complexity, higher throughput, and clogging resistance.

A potential field drives a body through liquid in a microfluidic chamber, improving laminar-flow mixing speed without complex active components.

Actual channel geometry is checked against target sensor positions and orientations to preserve measurement accuracy in imprecise channels.

A non-repeating optical code plate lets compact valve sensors determine absolute position accurately without bulky, wear-prone mechanics.

Sensor data selects safe test timing and stroke range, enabling deeper safety valve checks without interrupting process operation.

An added intermediate pawl keeps the rack engaged during transition, preventing slip while allowing larger backlash in chain tensioners.

Pin-actuated microfluidic valves automate nucleic acid routing, magnetic extraction, and thermal cycling to raise diagnostic throughput with less labor.

An electrically actuated e-gate separates heating and detection zones to control sample flow and temperature for faster, easier analyte testing.

A reference pressure sensor and evaluation circuit compare valve pressure signals to detect sensor drift and verify valve function automatically.

A MEMS-controlled shunt valve uses feedback-adjusted cracking pressure to improve CSF drainage while maintaining stable pressure regulation.

Deep-drawn sheet metal and profiled roller forming create precise harmonic-drive toothing without cutting or reprocessing.

Valve position data is converted into operating speed and compared with reference speeds to detect cavitation or fluid hammer without extra sensors.

A transitionable thermostatic element lets faucet anti-scald hardware switch from 120°F protection to sustained hot water disinfection.

A conduit constriction holds liquid with a capillary meniscus, then a drop jetting pressure burst opens flow without moving parts.

Rotor acceleration and speed are used to detect steam turbine valve leakage during operation, enabling early repair without shutdowns.

Integrated thin-film transistors drive micro pumps and fluid channels on one chip, enabling compact sample transport, reaction, and separation.

An expanding thermal actuator and fusible seal isolate microfluidic chambers without external pneumatics, reducing leaks, noise, and reagent risk.

A heated meltable seal and expanding membrane isolate microfluidic chambers quickly without complex pneumatic connections or pump noise.

A heat-melted fusible compound drives valve closure in microfluidic channels, enabling reliable chamber sealing after use or system failure.

A downstream temperature sensor after a flow restrictor detects excess engine fluid flow from leaks or broken lines without added pressure sensors.

Dual-drive pulsatile flow testing reproduces heart-like conditions to measure prosthetic valve orifice area and leaflet coaptation.

Closed-loop sensing and differential pressure measurement let this valve hold setpoint pressure while accurately metering flow.

Capillary-driven valve geometry restrains and expands a meniscus to block channel flow, enabling mixing and feedback loops without external equipment.

Pressure sensors across a fluid resistor diagnose seat leakage in upstream and downstream valves quickly while checking sensor drift.

Dual recirculation lines and synchronized valves return excess fluid before the heat exchanger, cutting pressure loss, heat load, and fuel use.

A fluidless reference load and sensor calibrate injector pressure output without impedance or capacitance errors, enabling fault detection over time.

Reversible dendritic silver filament growth blocks microchannel flow at low DC voltage, enabling fast switching with lower leakage and contamination risk.

Pneumatic membrane-plunger actuation controls microfluidic flow while improving small-scale seal reliability and protecting fragile moving parts.

A pressure-responsive valve closes the external lubrication passage during dry-run to limit oil loss and sustain helicopter gearbox lubrication.

A hollow isolation ball valve and inner key remove a failed injection fitting check valve without pipeline shutdown or product leakage.

A removable flush port and hose route water through clogged irrigation valves to clear debris quickly without full disassembly.

Straight-line groove cutting forms an external bearing pin lubrication channel without complex interpolation, lowering cost while improving oil entrainment.

Compressed-air actuation pressurizes engine control oil through the lubricating oil path, enabling black start with less piping and space.

Acoustic emission signals captured during valve opening enable automated gate valve health detection without shutdowns or manual inspection.

Pressurized air and a flow sensor check cartridge seals for leaks or blockages while establishing accurate rotary valve home position.