Check Valves TRIZ Cases

Variable bypass valve openings keep oil flowing during filter clogging while screening debris that could damage engine components.

An open-until-pressure purge valve clears trapped air during startup, preventing pump airlocks and cavitation damage in hydraulic flow paths.

A gravity-biased knob resets the dry pipe valve clapper without a separate spring, reducing wear and improving reuse after fire events.

An oil-dampened, pressure-compensated choking valve gradually controls flow to reduce water hammer, hydraulic shock, and component wear.

A double-conical elastomer regulator stabilizes carbonated beverage flow to preserve foam consistency and reduce decarbonation in portable containers.

Bypass channels and an elastomeric sealing ring help a mechanical valve hold low-pressure setpoints accurately with reduced hysteresis.

A one-piece PTFE shut-off body adds a deformable hinge to handle corrosive fluids while cutting waste, flow resistance, and opening force.

Filtering grooves and a flexible conical valve member block reverse flow, trap particulates, and protect IV fluid delivery.

A one-piece flow channel integrates the seat and retaining element to cut parts, simplify assembly, and improve check valve tightness.

A ball body and mesh baffle create a self-sealing liquid-cooled server connector that stops water splashing during disconnection.

A double-cone regulator with elastomer damping keeps carbonated drinks flowing uniformly, preserving carbonation and foam during dispensing.

An annular groove and deformation portion built into one valve portion simplify high-pressure pipe joints while strengthening O-ring sealing.

Position and pressure sensors automate backflow preventer testing, enabling continuous compliance checks and early leak detection.

A movable fill valve and mouthpiece tube keep oil out of the air path while enabling faster, cleaner automated filling of viscous media.

Magnetic actuation and force-balanced valve positioning enable partial opening, tighter closure, and lower-maintenance compressor control.

Folded auxiliary leaflets deploy during diametric expansion, letting a prosthetic valve grow with the patient while maintaining flow control.

A piston and stop let the obturator open under pressure difference even with viscous cold oil, cutting pressure loss and warm-up time.

Annular non-contact zones around the valve body spread collision stress, reducing fatigue cracks while preserving backflow sealing.

A split seal groove between the valve seat and retaining member improves sealing while allowing a looser-tolerance, lower-cost casing.

A rigid radial stop and annular gap prevent upside-down valve insertion while keeping flow unobstructed in transmission assembly.

A secondary sealing ridge backs up the primary check valve seal to block backflow when debris or pressure shifts prevent proper closure.

Offsetting the valve seat from the pipe axis cuts pressure loss and turbulence in backflow preventers while reducing debris buildup.

Support recesses create vortices that lower pressure, helping a check valve open fully with less wear and pressure loss.

Direct gas flow through integrated outlet openings cuts flow resistance and sealing points while improving shut-off in hydrogen filling valves.

An integrated container body and movable valve body cut check valve parts and manufacturing steps while maintaining one-way refrigerant flow.

Backpressure from a non-linear water flow valve collapses air bubbles before metering, improving reading accuracy and reducing meter wear.

Back pressure oil flow speeds check valve closure in valve timing adjustment, reducing delay from spring-based urging members.

When external force assists motion, the valve blocks pump pressure and reuses collector-channel pressure to reduce hydraulic energy consumption.

A spring-loaded valve seat isolates flange deformation and maintains disk contact pressure to reduce leakage in large valves.

Angled inlet and outlet with check valves enable precise dosing while reducing leakage and cross-contamination in disposable pharmaceutical filling assemblies.

Alternating restriction and expansion sections in a radial check valve reduce pump backpressure while preserving backflow prevention and fuel delivery.

Discrete valve cells partition the sealing plate so damage stays localized while maintaining fast pressure-driven flow control.

A pressurized chamber lets a pressure regulator switch sprinkler flow remotely while maintaining uniform outlet pressure and reducing valve network complexity.

A flaring valve cavity preserves flow area as the sealing member expands, preventing throttling and improving refrigerant circulation.

A radially routed connecting portion stops spring deformation under high load, so the valve element can reliably return closed.

An upstream-projecting valve body uses exhaust-gas force more effectively at larger opening angles while keeping spring-biased flow control compact.

A cut elastomer membrane opens at pressures at or below 1 mmH2O while maintaining one-way flow and backflow prevention.

A separate valve seat and seal retainer preserve sealing with a looser-tolerance casing, cutting valve manufacturing cost and seal damage risk.

Multiple gasket seals in different planes keep a pressure relief valve sealed under high relief forces while limiting gasket damage.

Union ends and an integral bleeder let this ball check valve be depressurized, removed, cleaned, and replaced without damaging plumbing connections.

Stored auxiliary leaflets activate during prosthetic valve expansion, maintaining flow regulation as anatomy grows without valve reimplantation.

Annular non-contact valve regions spread collision energy to prevent cracking while maintaining reliable backflow suppression in rotary compressors.

A jack-shaped silicone valve member with stem and castellated feet cuts sticking during bulk handling and supports easier automated assembly.

An overlapping lateral hole and recess hole remove throttle formation in the check valve path, cutting hydraulic oil pressure loss.

Pressure-differential limiting valves enable free inflation and controlled tyre deflation, preventing temperature-driven overpressure and excess wear.

Laser welding joins the flow path members and valve holder to stop check valve disengagement under ink pressure cycling.

A threaded orifice plate calibrates hydraulic relief valve spring force without disassembly, avoiding shim trial-and-error and saving time.

A segmented clapper with a grooved seal and angled edge prevents seal dislodgment under turbulence while improving wear and fatigue life.

A retention plate prevents umbrella valve dislodgment under pressure bursts or viscous flow while preserving sealing and fluid passage.

A downstream filter traps press-fit burrs in the valve timing oil passage, preventing wear in precision sliding components.