Fluid-Pressure Actuators TRIZ Cases

A hydraulic cylinder plug uses an outer screw and radial pin to lock rotation within the piston rod passage.

A sensor housing features a strip-like projection with flat side surfaces and an oblique thread for secure fastening.

Segmented seals in a rotary piston actuator reduce internal leakage while maintaining positional accuracy for aircraft flight control applications.

Closed enclosures collect leaked hydraulic fluid from aircraft servo controls, eliminating dynamic seal friction and enabling fluid reuse.

A microwave transmitter emits modulated signals toward a piston cylinder to detect position through phase evaluation.

A dual locking hydraulic actuator uses slidable lock rams to radially move segments within a piston.

Segmented rod tool applies pulling force to disconnected hydraulic cylinder glands, resolving piston nut loosening failures.

A fluid-impermeable liner isolates the stator from hydraulic fluid, preventing contamination and enhancing reliability.

A sliding sleeve mechanism detects relative movement between switching elements to identify operating states without complex sensors.

A hydraulic cylinder assembly apparatus uses a torque-controlled electromechanical drive for precise nut tightening and loosening operations.

A cylinder detection valve uses a transmission ball to convert piston ascent into lateral movement.

Integrating a PLCD sensor inside the cylinder housing reduces installation space and minimizes external disturbances for accurate position detection.

A compensation member housed within a piston rod absorbs swinging motions, preventing premature failure from lateral forces on cylinder walls.

Opposed pistons linked by a yoke deliver axial pull forces near structural edges, resolving tight clearance constraints.

A pneumatic cylinder uses an expandable sealing mechanism to route fluid between chambers, enabling piston return without external springs.

A compact hydraulic spindle mounts the pump inside the cylinder cavity to reduce component count.

An external hydraulic cylinder with a movable piston estimates subsea actuator position, resolving space constraints that prevent direct sensor integration.

An actuator design isolates a resin plate within a negative pressure chamber to prevent atmospheric exposure.

Roller bearings replace sliding contacts in the wedge gear, reducing energy loss while maintaining high clamping force.

A hydraulic cylinder piston rod features a round annular concave portion that engages with a tapered piston unit inner periphery to secure fastening force.

Flexible seal cooperates with channels to allow controlled airflow only when piston is rearward, preventing undesired shifting caused by supply valve leakage.

Helical bolts convert piston linear motion into rotary torque, reducing seal complexity and manufacturing constraints.

A compact magnetic sensor uses perpendicular Hall elements and arctangent evaluation to generate a monotonic position signal.

Segmented guide piston halves engage a concave rod contour to resolve assembly complexity while ensuring reliable connection security.

A hydraulic hand pump integrates a handle locking mechanism with an unloading valve assembly to streamline fluid transfer operations.

A powered side panel system uses a lever arm and actuator to pivot trailer panels vertically.

Radial ball engagement via a displacement member maintains stable retaining force, eliminating abrasion and permanent set in elastic buffers.

Radial and axial play between the guide sleeve and retaining nut allows self-centering, preventing seal damage during maintenance.

Segmented buffer sleeves with varying fit clearances resolve the contradiction between high buffering reliability and low manufacturing precision requirements.

Segmented radial keys prevent total lock failure from seal leaks, ensuring reliable position holding.

Segmented brake members and an intermediary frame enable retrofitting fall prevention to existing air cylinders without structural modification.

A hydraulic locking tool uses plungers to extend radially and engage flying plates for secure subsea connections.

Segmented plug connections enable automatic cylinder disconnection, eliminating manual alignment risks during deep drilling operations.

Integrated blocking devices prevent outrigger swiveling from centrifugal forces, eliminating complex manual locking mechanisms.

A fluid pressure cylinder cap features a bent outer edge portion locked to the inner circumferential wall.

A retraction jack uses a movable unlocking member to dampen vertical stresses during rotorcraft landings.

A metal locking element surrounds the sensor to prevent detachment during temperature fluctuations and maintain accurate position detection.

A locking piston assembly integrates a biasing device and fluid-actuated lock to secure the piston rod position without heavy mechanical components.

Radial locking pins engage chambers via pressure medium to prevent unintended rotation under heavy loads without relying on wear-prone braking surfaces.

Bonded cylindrical end bodies join elastic and braided tubes in a bundled artificial muscle actuator, eliminating sealing members that hinder miniaturization.

A fixed wobbler uses an amorphous diamond-like carbon coating to reduce friction between the component and pistons in hydraulic systems.

Varying notch cross-sections in a damper sleeve adjust flow resistance to handle higher speeds and loads while eliminating kickback vibrations.

A fluid pressure cylinder cushion mechanism uses a replaceable orifice plug to decelerate the piston rod.

A cylinder assembly uses a receiving device to hold spacing plates at a radial distance from the piston rod.

Adjustable pressure piston position in discontinuous mixers optimizes elastomeric compound mixing.

A wireless magnetic cylinder sensor harvests kinetic energy from piston movement to power its evaluation unit.

A linear drive device uses a third stop to adjust the second stroke end position alongside the first counterstop.

Segmented parallel air chambers maximize force output while minimizing space occupancy.

A sliding buffer sleeve blocks oil flow via a sealing surface while a throttling channel provides viscous damping, reducing manufacturing precision needs.