Check Valves TRIZ Cases

A flexible membrane check-valve replaces rigid bearings with an elastomeric diaphragm, eliminating mechanical wear and reducing maintenance costs.

Segmented check valve assemblies allow extraction through an access port, eliminating the need for bypass lines during service.

A tubular insert and support plate guide a gravity-sealed valve member to release internal gases from a forage bag.

A pipeline isolation plug uses fluid pressure differentials to activate sealing modules without external control systems.

Segmented insert check valves use a retention cage to capture the movable disc, reducing weight and assembly complexity while improving flow coefficient.

Injection molding encapsulates leaf spring ends in the plastic housing to eliminate assembly steps and positional tolerances.

Axial recess on thermal poppet valve bearing face distributes gas pressure evenly, preventing sudden movement and mechanical damage in circuit breakers.

A valve core uses a metal glass sealing member alongside a rubber seal to maintain tight closure on the movable shaft.

A multi-chamber shower head employs a pressure-controlled check valve to enable selective jet outlet control without manual diverter valves.

Segmented valve chambers and dual pistons enable rapid, robust tire pressure reduction without complex electronics.

Segmented storage tanks and a single compressor resolve the complexity trade-off, enabling practical residential refueling.

A pressure-controlled reducing valve regulates extinguishing gas flow from high-pressure cylinders to low-pressure lines.

An integrated beer spear with a pressure relief valve eliminates external gas tubes, preventing leakage and spoilage while simplifying keg assembly.

A hydraulic pressure supply system uses mechanical and electrical oil pumps to deliver fluid.

Integrating the central tire inflation valve into the wheel body eliminates external mounting hardware, reducing leakage points and wheel imbalance.

An integrated annulus guide constrains the disc to axial motion, eliminating flutter and chatter that cause accelerated wear in turbulent flow.

A pin-shaped captive element secures the valve closing body within the check valve housing of a variable-compression connecting rod.

Arcuate hinge tongue rotates within matching groove to eliminate stress concentrations from discontinuous designs.

A valve assembly uses biasing force to block air passage in water supply lines.

Asymmetrical chamfered housing reduces petal stress, eliminating washer wear and cutting weight by 13%.

Rotating an adjustment tube widens the gap between a seal and a shoulder in a tire valve assembly, enabling rapid air flow for faster inflation and deflation.

Integrated check valve uses a ball mechanism to direct fluid flow through flange orifices within the meter housing.

A valve uses a nested piston and position indicator to mechanically confirm closure status.

A resilient flap check valve seals the junction between lumens to allow forward fluid flow while blocking reverse movement.

A two-way check valve maintains constant tire pressure using self-regulating valve bodies and resilient members.

An annular strike element with surface incisions slows rapid condensate discharge, reducing noise and storage container complexity.

Punched hole in movable rod drains residual tire repair liquid to prevent outlet blockage and maintain consistent air intake.

A low pressure relief valve uses a threaded spider and adjusting fork to compress the poppet spring for precise calibration.

A tubular inflation valve uses a spring-loaded sealing disc to open and close automatically during gas transfer.

An inline pressure event indicator shifts a paddle upon fluid flow to mark specific relief valves, eliminating manual inspection downtime.

A urethane check valve disc combines a flexible flapper with a rigid sealing portion to control fluid flow.

Controller detects valve state via supply-side pressure signals, reducing reservoir pressure drop and compressor operation frequency.

A rectifier assembly with check valves normalizes pressure proximate to a gas sensor.

A coil spring stop absorbs flapper impact energy, reducing stress on mounting posts and allowing lighter construction.

A system separator assembly uses a removable cartridge containing coaxial non-return valves and a spring-loaded piston drain valve.

An elastic engaging portion compresses radially to lock a pressure tube, eliminating screw assembly time and vibration-induced leakage.

A rubber-elastic sealing membrane with a non-circular cross-sectional profile opens under liquid pressure to drain fluid from a sanitary trap.

A pivoting paddle air stop valve controls fluid flow in aircraft galley plumbing systems using a segmented flap mechanism.

A compact pipe separator uses a radial piston to control the drain valve without interfering with the main flow path.

A spring-biased seal member in a fuel pressure relief valve shifts position to maintain rail pressure during operation.

A breather device uses a water stop filter in the intake path to allow gas passage while blocking liquid entry.

Replacing O-rings with a flexible diaphragm seal reduces friction in a pressure-controlled three-way valve, enhancing operation reliability.

An asymmetric grommet design prevents air leakage under rotational forces, ensuring accurate tire pressure readings.

A spring-biased stem assembly controls gas flow in inflatable objects through a compact housing design.

Segmented housing contact surfaces distribute impact forces from high-speed flapper pivoting, preventing structural damage to linear compliant stops.

Segmented metal bearing flanges and elastic hose elements maintain rotor alignment and prevent backflow, extending service life.

Composite materials and dimensionality changes enable reusable sealing while maintaining shape during freezing.

Nested floating bodies with elastically supported check balls prevent leaks in semiconductor utility connections.

A centreline flow valve uses a pivoting head and lever spring to control fluid movement.