Wind Acting Propulsive Elements TRIZ Cases

A releasable coupling and ratchet let the mandrel furl one way while avoiding endless-line splice failure and line cutting during boom service.

A rotatable cylinder between asymmetric aerofoil assemblies stabilizes airflow, cuts separation and vibration, and improves wind-assisted ship propulsion.

Distributed sail and hull sensors replace cameras to reconstruct sail flying shape in real time despite light, moisture, fog, and mounting limits.

A shiftable flow blocker activates the right aerofoil set for port or starboard wind, stabilizing airflow and reducing vibration losses.

A motor-driven slidable collar and cable tail mechanism enables precise control of a freely rotating self-trimming wingsail.

Rotating rib units reverse wingsail camber for efficient tacking while preserving high-lift, low-drag airfoil shapes and neutral docking.

A latch-and-control-surface retrofit turns manual sail track car locking into automatic hoist-to-lock operation without modifying the track.

An open-ended mast transit part guides sail dollies during hoisting and lowering, reducing friction and blocking risk.

Flexible strands secure the mast within profiled sail cambering devices, limiting impact damage while allowing maneuvering changes.

Elastic semi-rigid cambering devices fold multi-section wingsails progressively, reducing wind-catching area while limiting local stress and tearing.

A switchable ratchet lets a sailing boat furling shaft resist external torque, protecting the motor and gearbox without oversized packs.

A detachable buoy provides a separate kite launch and landing area, preventing tether and sail interference while reducing floating unit size.

An adjustable tensioner and cam follower automate sail angle and vessel speed, reducing reliance on complex motorized sail hardware in changing winds.

Flexible strands and actuators clamp cambering devices to the mast, reducing impacts while enabling smooth hoisting and maneuvering.

A cavity and side screws create mechanical connection and friction, simplifying on-site anti-torsion rope installation.

Guidance members engage alignment members on the end piece to transmit torque, eliminating manual supervision of the driving unit.

Angular adjustment device with detection members and control module pivots boat boom to maintain sail luff segment position.

An asymmetric three-wheel arrangement reduces mast guide carriage stacking height by one-third, enabling manageable storage on high masts.

A compact pad eye and fairlead device merges attachment points with line redirection passages to simplify vessel rigging configurations.

Cockpit-operated spinnaker guiding members fold and recover large sails without crew exposure to hazardous wind forces.

Automated kiteboarding canopy system uses electromagnetic solenoids to secure the canopy during landing, enabling safe solo operation in high winds.

A rotor sail system with multiaxially tiltable sails adjusts orientation dynamically to optimize propulsion efficiency across varying wind conditions.

Integrated resilient battens in a flexible wingsail maintain an aerodynamic airfoil shape, resolving the trade-off between boat speed and system complexity.

Segmented wingsail structure uses independent flap rotation to resolve reefing difficulties while maintaining propulsive power.

Air injection into sealed surfaces keeps the sail inflated and symmetric, solving weak wind performance issues.

Sheaves and turning blocks provide mechanical advantage to position the mainsheet boom against wind pressure.

A nautical boom fastening profile integrates outer hoisting channels and an inner through cavity for secure accessory mounting.

Segmented luff holders decouple from mast carriages, eliminating friction and warping during automated reefing operations.