Joints With Sealing Surfaces TRIZ Cases

A flexible anti-rotation band limits female nut rotation via a stop tab, preventing leaks from thermal cycling and vibration.

An integral cylindrical case body eliminates assembly bolts in a rotary joint, resolving the trade-off between seal reliability and structural complexity.

Plasma coating applies distinct friction layers to screw threads and contact surfaces, eliminating wet-chemical variability.

A conical clamping ring centers a pipe while a wedge ring cuts into its outer circumference to create a secure mechanical grip.

Elastic metal strips prevent untimely unscrewing of pipe end fittings under vibration.

Segmented coupling assemblies with nested springs prevent misassembly and leaks in electrically sensitive fluid transfer systems.

Increasing the cone angle to 38 to 50 degrees prevents internal incursions during forming while maintaining sealing integrity.

Radial compression of a plastic fitting body against a metal pipe inner surface eliminates cross-sectional constrictions and prevents pressure loss.

A pipe connector uses a sliding fixing part to clamp the conduit end.

A quick coupling fitting uses a threaded screwing ring to lock connectors together.

An insulation ring isolates aluminum pipes from copper alloy components, eliminating contact corrosion while maintaining a secure mechanical seal.

An elastomeric shaped part surrounds a fluidic component to generate internal tension via an annular projection.

A pipe connecting device screw element uses distinct coatings to manage friction and corrosion on threaded and contact surfaces.

Radial compression of the clamping element eliminates elastomeric gaskets and specialized tools while ensuring permanent pneumatic sealing.

External piping bypasses complex internal engine galleries to maintain high hydraulic pressure and operating speed for variable valve timing.

Mechanical locking unit prevents loosening from diaphragm pump vibrations, eliminating uncontrolled leaks in liquid chemical handling systems.

A resilient member defines a threshold torque in rotatable fastening assemblies to prevent overtightening of fluidic couplings.

A flexible anti-rotation band prevents polymer connector loosening under thermal cycling and vibration.

A compression coupling integrates a distinct restraining joint with radial grooves to mechanically secure metallic pipes against axial displacement.

An adjustable connection arrangement standardizes interfaces between fuel filters and fluid meters, eliminating the need for multiple specialized versions.

Integrated connection apparatus aligns fluid channels to reduce leakage points and improve system reliability.

Radial compression induces plastic deformation in tubular end portions to create continuously decreasing internal thread diameters.

A high pressure fuel pipe connection arrangement uses a chamber and fixing means to secure the injector holder interface tightly.

Elastic tabs formed in the nut material penetrate coupler recesses to prevent unscrewing under vibration without adding complex separate locking parts.

A resin pipe joint uses a segmented groove to compress an inner cylinder portion, enabling reliable tube recoupling.

Optimized cylindrical face contours reduce tensile stress concentration and cavitation erosion risks in thick-walled steel pipe connection heads.

Resin ferrules deform under nut pressure to seal small-diameter measurement tubes, preventing liquid leakage while maintaining flow rate precision.

An S-shaped retaining ring prevents unintentional loosening by generating higher loosening torque than tightening torque.

Opposite-handed threads splay a split collet via a wedge part, securing male and female parts against torsional forces in offshore environments.

External ribbing reinforces the center part against pressure loads while a retaining ring prevents screw connection loosening.

A push plug branch assembly uses a shoulder and O-ring to seal pipeline bores without valves.

Reverse threaded lock nuts prevent JIC swivel nuts from loosening under hydraulic shock and vibration.

A swivel coupling for barrel bungs uses a rotating seal to prevent dripping during emptying.

Segmented clamping segments react elastically to lock pipes, eliminating screw tightening precision errors.

A pipe joint cover portion shields threaded surfaces to block fine particles from entering fluid passages.

A male tube fitting uses a plasma-treated friction-reducing layer to lower assembly resistance.

A polymer connector body with a metal reinforcing ring and protective sleeve secures microfluidic module joints against high pressure and chemical damage.

A pipe connecting device uses a modified inner ring with distinct tip and base contraction ratios to establish stable contact pressure for sealing.

External leakage paths enable reliable leak detection without increasing mechanical complexity or interfering with the sealing area.

Convex connecting element bears against conical bearing face to form sealing surface via plastic deformation.

Interlocking tapered projections prevent axial withdrawal of gripping devices, resolving the trade-off between secure retention and disassembly ease.

A connecting device uses a spherical cam mechanism to transmit mechanical force between pipe ends and connector bodies.

A coupler uses a softer metal sealing member to protect fastening components from damage during compression.

A self-locking coupling assembly joins aircraft conduit members using a threaded flange and lock nut group.