Lift Valve TRIZ Cases

A quintuple-offset disk and seat layout cuts friction, lowers torque, and distributes contact pressure to reduce wear, deformation, and leakage.

Superhard seat and needle contact surfaces cut abrasive choke valve wear while lowering replacement frequency and operating cost.

Separate high-flow and low-flow plugs and actuators widen control range, ease shut-off tolerances, and reduce valve chattering.

Recess-and-protrusion valve seal engagement resists radial, axial, and rotational shift to reduce leakage and wear in fracturing pumps.

A retractable closing body and flushing space expose the seal for cleaning, improving hygiene in double-seat valves.

Distributed capacitive sensor sections track sealing sleeve forces to distinguish valve states, fatigue, and error causes more reliably.

A tapered seat ring and stepped body corner create elastic annular sealing that maintains pressure and blocks back leakage despite dimensional errors.

A movable valve seat lets the regulator give under abrupt pressure loss, preventing cone-seat jamming in very high-pressure fluid control.

A flexible seal structure closes butterfly valve air leaks while enabling bidirectional disk rotation in angled vacuum cleaner conduits.

A single-piece valve disc uses an introduction groove to insert and replace the seal while keeping it securely retained in the main groove.

Flow-through control plate passages and nested orifice ridges raise valve conductance while preserving leak-tight shut-off and fluid sweep.

A shaped clamp strengthens the butterfly valve shaft-disc joint while making the external shaft fail first to preserve flow control.

A ball-and-spring poppet seal self-aligns under misalignment to cut spacecraft valve leakage and reduce propellant loss.

A polymer valve seat adapts to the valve element to improve flow precision, limit bypass leakage, and maintain low pressure drop.

Cam-controlled split valve positioning keeps chamber volume consistent for sterilization while limiting contamination during material transfer.

Threaded couplers and adjustable valve member positioning enable simultaneous seat contact, reducing leaks, assembly time, and part complexity.

Relief cuts and balance openings redirect trapped process fluid in letdown and decoking valves to prevent stagnation, deposits, and corrosion.

A deformable chain mail flap valve and trigger mechanism improve core barrel sealing contact, raising sealing-specific pressure and reducing leakage.

A contact-free shaft hole shifts bearing load away from the weak transition area, helping a narrow plastic butterfly valve resist pressure cracks.

Sulfur-based chip breaking lets tin-containing copper moulded parts machine economically while maintaining corrosion resistance and low lead content.

A spring-backed flexible seat ring maintains bidirectional high-pressure sealing while limiting wear, plastic deformation, and torque imbalance.

Variable-height rib sections balance valve disk deflection and stress, improving high-pressure sealing durability without added weight.

An M-shaped valve disk seal forms two linear contact lines to balance surface pressure, cut stress concentration, and lower valve torque.

An integrated quick disconnect fitting uses an adjustable orifice to limit fluid flow and pressure while reducing line weight and extra connections.

A concentric resilient seal at the conduit entrance blocks air leakage and lets a vacuum cleaner butterfly valve disk rotate in both directions.

A two-stem eccentric butterfly valve uses a bottomed-hole support and deep engagement groove to cut leakage while increasing full-open flow area.

Convex curved groove walls let the valve member open a larger flow area while limiting deformation, reducing vortex and pressure loss.

Laser-sintered fusion of the metal retainer to the housing secures the carbide insert, avoids stress risers, and stays effective across temperature changes.

A polymer valve seat adapts to the valve element to limit bypass flow and pressure drop while preserving precise control in compact valves.

An elastic-sealed butterfly valve removes separate seals to simplify aseptic food-industry shut-off while lowering torque and leakage risk.

Tapered, curved valve seat and body surfaces reduce edge stress during closure, improving wear life and sealing efficiency.

An M-shaped peripheral seal and spherical boss surfaces keep pressure uniform, improving butterfly valve sealing durability with lower torque.

Multiple curved welding spots expand weld angle and distribute stress in valve joints, improving fatigue resistance with lower welding output.

Covering the valve body's liquid-facing side with the seal enables stiff materials, reliable sealing, and simpler one-shot moulding.

Threaded couplers compress a ferrule on the valve stem to set dual valve-member spacing, enabling simultaneous seat contact without spacers.

High-velocity steam from the valve body clears foreign matter from the valve port, reducing deposition and clogging during flow adjustment.