Check Valves TRIZ Cases

Stationary shear seal elements resist debris fouling in dirty fluids, maintaining reliability without complex external controls.

A hydraulic braking check valve uses a low elastic modulus spring to reduce pushing force while preventing fluid leakage at the connecting hole.

Air-inlet sealing diaphragm with offsetting spring manages fluid flow and system pressure.

Segmentation of the nozzle body and sleeve enables rapid assembly, preventing gas leakage during disassembly.

An external movable annular disk throttles fluid flow, lowering internal pressure and drive power in vehicle brake systems.

A combined check and relief valve uses a resilient member to bias a relief valve member against a seat, enabling fluid flow when pressure exceeds the target.

A stroke-controlled balancing device with a sliding valve reduces axial size in hydraulic braking systems.

Resilient damping elements between flappers and leaf spring stops dissipate impact energy, reducing peak forces on aircraft check valve components.

Segmented seals and an inlet filter resolve sealing reliability issues caused by foreign matter in check valves.

A pressure relief valve uses rigid metal sealing surfaces lapped to high flatness and smoothness for reliable gas containment without elastomers.

Dual shock-absorbing dampers in a parallel cylinder check valve manage closing speed to prevent water hammer and pump damage.

A fuel check valve support shaft uses an engaging groove and receiving hole to secure attachment without breakage.

A check valve isolates the biasing spring in a dry cavity to prevent fluid contact.

Radiofrequency-sealed elastomeric valve eliminates leakage and sticking during patient fluid drainage.

Integrates a semi-permeable membrane into the battery shell structure to enable gas exchange while blocking liquid ingress.

An elastomeric safety valve uses a continuous circumferential groove to formfit a housing retaining web, ensuring fluid-tight sealing.

Integral backflow valve prevents fluid reversal and air entry without requiring separate components or system bleeding.

Cylindrical valve body with axial and radial discharge openings replaces flat blocking plates to expand gas flow path area, reducing flow resistance.

A valve assembly uses a piston with specific area ratios to regulate tire pressure across varying conditions.

A check valve assembly uses a movable spherical piston to enable high flowrate injection of treatment fluids into subterranean formations.

Spring-loaded ball detent replaces camming force, eliminating manual alignment effort while securing Schrader and Presta valves.

A check valve assembly uses convex and concave curvatures on the disc head to streamline compressed gas flow.

An integrated mud valve eliminates loose bolts by merging the yoke and flange, while asymmetric drain plug tabs enable field maintenance without disassembly.

Segmented handle and head allow dynamic alignment with valve stems in tight motorcycle wheel wells.

A one-way sealing valve arrangement equalizes sub-atmospheric pressure in fuel tanks using a flexible sealing valve with a centrally arranged recess.

A valve pressure assembly maintains actuating mechanism pressure during thief hatch cap opening.

Segmented tubular insert sets nominal flow without modifying functional components, eliminating complex manufacturing processes.

A threadless valve assembly uses resilient latch arms and magnetic coupling to secure a removable insert within a prosthetic socket base.

A quick service limiting valve regulates airflow between brake pipe and cylinder using a diaphragm and check valves.

A hydrophilic boron nitride layer on the valve guide surface collects water to prevent fuel residue adhesion.

Cap valve inflates plastic bottles to create explosive targets, replacing expensive range equipment with affordable pneumatic feedback.

A bellows pump inlet valve uses a circular segment dome to distribute pressure uniformly across the valve seat.

Segmenting the main valve into a pilot and primary stage reduces actuating force, enabling compact drives for precise fuel tank pressure control.

Offset perforations in a MEMS check valve enable compact glaucoma implants that manage intraocular pressure without bulky mechanical components.

A fuel vapor draining device uses a sealing member to isolate the port from tank pressure.

Segmented valve members eliminate check valves and leakage risks by using elastic diaphragms for reliable, pressure-independent sealing.

Protuberances on exhaust stems reduce fluid turbulence and force imbalances for accurate tire pressure control.

An integrated phaser valve synchronizes parallel hydraulic cylinders by enabling fluid communication between blind and rod ends, reducing vibration and noise.

A cartwheel valve uses a domed central plug to enable bidirectional fluid passage and automatic sealing.

Bumper elements constrain flapper rotation below 90 degrees, eliminating central mounting bars and reducing pressure drop.

Segmented pin support and location elements minimize mass while maintaining structural integrity under frequent cycling conditions.

Straight-line folding areas in duckbill valve lips reduce opening pressure and minimize dead space volume through precise geometric alignment.

A suction valve with concentric bodies opens end and lateral inlets via spring force, enabling effective bottom liquid removal from vessels.

An integrated detector monitors the movable body to resolve uncertainty in detecting the valve closed state.

Separable fitting sections eliminate labor-intensive caulking processes, reducing manufacturing costs while maintaining reliable separation prevention.

A modular valve insert with a moveable piston and annular seat enables quick assembly into fluidic housings.

A tire valve uses an axially offset connection segment to enlarge the internal channel diameter and accelerate air movement.

A valve system manages fluid paths using check valves and deformable sealing members to enable concurrent dual flow from multiple sources.

A check valve apparatus integrates a dedicated test channel to allow manual verification of disc movement using a simple test stick.

A sliding valve pivots a support unit about a rotational axis to engage front and rear elements simultaneously.