Check Valves TRIZ Cases

Segmenting the valve mechanism into a replaceable cartridge stabilizes flow rate control despite coil spring degradation over time.

A modular pipe separator kit uses a detachable discharge funnel to adapt installation orientation without pipeline modification.

An elastic lead groove in the bearing portion retains the supporting shaft, preventing detachment when polyethylene swelling expands the hole.

Contoured elastomeric flap pivots on a hinge to drain fluids from vehicle cowl airboxes, preventing harmful HVAC fumes from entering the passenger compartment.

A fluid flow controller manages differential pressure via a spring-loaded valve seat, opening bypass paths when filter media clogs.

Segmented retention legs with spring engaging hooks compress the pressure relief spring to bias the valve assembly toward a closed state.

A smart check valve uses a compressible member to enable bidirectional fluid flow in infusion sets.

A gas regulator uses a magnetic element and metal coil to generate induced emf for pressure indication.

Deflectable stem catches mechanically retain the valve shield, eliminating adhesive cleaning and corrosion risks.

A breakaway coupling uses a shear groove and valve assembly to isolate fluid flow upon structural failure.

Turbulent-flow blades convert axial impact into rotational torque, eliminating water hammer damage while maintaining rapid closure.

Segmented bearing sleeves and conical valve seats enable 240 L/min flow rates without increasing external dimensions.

A hydrant shoe backflow prevention assembly uses a rotating disc and seat mechanism to control water flow direction.

A clampable valve stem assembly uses a compression sleeve to seal against the wheel rim interior from the exterior side.

Integrated one-piece housing and rotating shutoff valve reduce flow losses and pressure measurement errors.

A fuel tank check valve cap features a notch aligned with a retraction portion on the housing for precise circumferential positioning.

An uncompressed spring keeps the plunger floating in the oil pressure regulator, eliminating buzz noise from rapid oscillations during low pressure.

A liquid-based sterilization device suspends pharmaceutical closures to prevent mechanical damage.

Merging the relief valve with the check valve reduces part count, directs oil back to the supply side, and prevents check valve damage.

A sanitary changeover valve uses a hollow piston to integrate flow control accessories internally.

A hammer union back pressure regulator uses a bonnet assembly with a weep hole and O-ring seal to control fluid pressure.

A self-actuating dual-pivot flapper valve reduces radial extension and flow loss by integrating compact pivoting flappers into the compressor housing.

A blow-off valve in an inflation stem isolates high-pressure fill air from internal tire pressure using a separation fin and shield.

A check valve trim uses a rotational stem to align flow passages and reduce fouling accumulation.

An exhaust valve uses a diameter-increasing wire mesh to distribute impact loads, absorbing chattering noise without additional weights.

A bleeding screw with a kick-back valve opens against spring force to vent air and closes automatically when pressure drops.

Segmented cartridge enables quick valve extraction without pump disassembly, reducing maintenance time.

A valve flap features a curved lower snake deflecting contact face to facilitate sliding contact with plumbing snakes.

A pneumatic valve integrates a check element within the switching component to manage fluid flow paths.

A fluid release valve check valve assembly seals during pumping and drains via pressure differential.

A fuel shut-off valve assembly uses a positive sealing insert to create a secure mechanical seal within the filler tube inlet.

A check valve mounting structure uses a holder block with lugs and channels to secure the valve.

A self-tightening valve mechanism adjusts compression force to maintain a reliable seal on gas tap fittings.

Digital pressure gauge mounted on a spray gun adapter monitors air pressure with minimal flow disruption.

Radial deflection prevents local supercooling and product contamination during cryogenic discharge.

A unitary monolithic valve integrates a spherical ball and frame directly into tubular lumens to enable reliable one-way fluid flow.

Rare-earth magnets hold flexible valve walls closed, preventing backflow in saline environments where rubber seals lose elasticity.

A safety valve cone protects differential pressure sensors by displacing under extreme pressure.

A check valve uses a floating guide to constrain the poppet stem, reducing hydraulic flow loss during variable fluid conditions.

Piston mechanism seals ink ports to prevent leakage and evaporation when printers are carried or stored.

A convertible check valve uses segmented body sections to enable fluid communication in aligned or elbow orientations.

A cooling air bleed device with a flap valve modulates airflow through a linear translation mechanism.

An oblique guiding rail directs the ball toward a supporting blind, preventing suction and ensuring reliable sealing in wastewater systems.

Segmented blocking portions with oblique side sections prevent reverse leakage by abutting against support steps under high pressure.

A recessed cup valve assembly with a threaded boss secures components flush with an inflatable body surface, preventing air leakage and debris entry.

Composite spherical relief valves release excess pressure through annular gaps while maintaining tensile strength in narrow well casings.

Segmented body and accessible seat reduce turbulence erosion in high-pressure fluid systems.

Circumferential grooves on the piston surface guide fuel through a laminar flow path, preventing cavitation and vibration during rapid pressure drops.

Segmented discharge ports in a duckbill check valve nozzle increase turbulence and surface area to resolve limited mixing efficiency in reverse flow prevention.