Spindle Sealings TRIZ Cases

Conical segment converts radial thermal expansion into axial movement to maintain constant contact pressure on the sealing ring.

Hermetically sealed cooling cavities encircle the medium channel to prevent deformation of the ball body and valve rod, enabling safe operation up to 900°C.

A circumferential groove on the shaft creates turbulence to enhance sealing efficacy within an internal combustion engine control device.

Fluororubber seals with metal inserts prevent water leakage in fuel cell coolant valves by maintaining plunger shaft contact under thermal stress.

A valve packing load assembly uses a Belleville spring and guide member to apply precise mechanical stress to the seal.

A flat elastomeric membrane paired with a rotating pressure disk eliminates plastic deformation wear while minimizing frictional torque in industrial gas taps.

Optimized valve seat thickness ratio minimizes thermal expansion and deformation, maintaining sealing performance and flow stability in hot gas control.

A diaphragm valve uses a dual point seal and flexible web to maintain effective sealing under pressure.

Integrated wiper and sealing element reduce production costs by eliminating separate components.

Segmenting the rod guide into high-strength and low-friction components resolves the trade-off between structural integrity and sliding resistance.

Segmented aseptic chambers with enlarged openings prevent clogging in high particulate fluids while protecting sensitive biological media from shear damage.

Segmented plastic sealing ring cages protect O-rings from coating roughness, extending service life while lowering production costs.

A component feed nozzle employs a membrane seal to distribute pressure uniformly across the closing body, resolving poor responsiveness in conventional designs.

A coupling device safety valve discharges incompressible fluid to prevent bellows breakage.

Fluororesin sealing protrusion limits radial displacement to 6.175 μm, restraining abrasion and particle generation in semiconductor fluid control valves.

A valve bonnet uses mismatched thread pitches to mechanically lock against rotation while maintaining stem sealing integrity.

Compression-molded PTFE covering on a metal valve stem resists harsh CIP/SIP chemicals, preventing rubber degradation and contamination risks.

A valve packing assembly uses a thermal-responsive shape-memory member to expand and increase height.

Replacing bellows with crease-free plastic membranes eliminates dead spaces where residues accumulate and reduces fatigue fractures from fold stress.

A double seat valve uses a bent membrane seal to enable radial insertion of the fastening element for secure attachment.

A pneumatic inflation valve core uses a lengthwise passage and sheath to contain the inflation needle during operation.

Segmented bushings manage thermal expansion to reduce exhaust gas leakage while maintaining reliable modulation across temperature ranges.

A subsea valve actuator visual indicator mounts on the override shaft within a pressure-compensated enclosure.

A self-adjusting stem sealing assembly uses fluoropolymer seals and Belleville springs to maintain constant seating force on the valve stem.

Segmenting the main and bypass valves resolves the contradiction between precise fluid regulation and effective aseptic cleaning efficiency.

An injection molded ball valve core features alternating concave and convex curvatures that prevent air leakage by eliminating assembly deformations.

Ring parts extend less than 180 degrees around the longitudinal axis, preventing buckling and weld wear in vacuum applications.

External adjuster modifies valve packing compression to counter spring degradation and prevent fluid leakage in remote internal valves.

Segmenting the valve into a universal body and swappable outlets reduces inventory complexity while maintaining gas compatibility.

Anti-rotation assembly prevents stem twisting to reduce torsional loads on bellows seals.

A flexible sealing sleeve uses overpressure barrier gas to isolate an actuating rod from raw gas flow.

A stem packing assembly combines a viscoelastic PAEK member with a low-expansion PTFE ring to maintain radial compression.

A vent passage routes escaped fluid from the actuator bore to the exterior, maintaining safe pressure levels.

Drawing process forms thin film diaphragm to reduce repulsiveness while avoiding high manufacturing costs and defect probabilities.

Segmented seal design with axially biased second piece prevents dust ingress into bearing compartment, maintaining reliability under extreme heat.

A flow-rate control valve integrates a reciprocating drive part and exhaust structure to manage fluid movement.

A bi-directional valve uses a balanced control element to seat against the valve seat under high pressure.

Spring force on a secondary sealing portion compensates for diaphragm aging, maintaining tightness without sacrificing flow capacity.

Offset through-holes in the air tap assembly balance lateral pressure to prevent plunger deviation and reduce required elasticity.

Overlapping annular metal sheets form a flexible welded bellows that resists metal fatigue and reduces manufacturing costs.

A stacked body of expanded graphite sheet-like members surrounded by a restraining body enables relative movement between adjacent layers.

Diaphragm seal eliminates sliding contact to prevent contaminant ingress and reduce break-away friction in pressure balanced valves.

A linear actuator cover minimizes gas adsorption and plasma interference, maintaining high vacuum levels.

Direct elastomeric sealing removes crevices between parts, preventing bacterial growth in dairy processing valves.

A stem seal uses a triangle-sectional bushing compressed between conical sockets to create radial sealing force.

A cylindrical bellows actuator opens and closes a fluid inlet valve based on pressure differences in sterilization containers.

Merged collar and locking ring eliminate separate fasteners, reducing assembly complexity while ensuring reliable axial fixation under high loads.

Unified seal carrier reduces leakage paths in subsea valves by merging primary and secondary seals into a single assembly.

Attachment structure isolates diaphragm from compressive forces, maintaining measurement precision despite aged deterioration.