Fluid-Pressure Actuators TRIZ Cases

A welded adapter body separates threading from the cylinder tube, cutting material use and enabling precise closure-part angular positioning.

An exhaust channel vents residual air from the piston pin and seat, preventing negative pressure and lowering valve pull force.

A fluid-driven pusher releases the retaining element to hold the arm open reliably under axial stress without sudden piston movement.

A hybrid thread and laser annular weld shifts axial load in a working cylinder, cutting tube wall thickness, weight, and material use.

A throttled short-circuit flow path slows cylinder motion while preserving fluid injection or suction quantity without increasing body size.

Laser ring welds join cylinder closures without threads, cutting material use while improving sealing precision and service life.

Snap ring locking and multiple O-ring grooves secure a hydraulic cylinder top end cap without full threading, reducing machining cost and installation time.

A preloaded piston ring and limiter create throttled hydraulic end cushioning with precise damping onset, low wear, and simpler cylinder design.

A thread-weld cylinder joint shifts axial load to a laser ring weld, enabling shorter threads, thinner tube walls, and lower material use.

A tapered press-fit and laser ring weld replace threads to raise working cylinder load capacity, pressure resistance, and positioning accuracy.

An electromagnetic coil drives a seat post switch directly, cutting wire friction, assembly complexity, and response delay.

Axially offset hydraulic ports, ribs, and conduits reduce actuator bulk and weight while maintaining pressure and vibration resistance.

Segmented frustum pairs and a soft folding hinge let this fluid-driven elastomeric actuator snap quickly while preserving mechanical compliance.

A rigid tube keeps the hose and fluid port aligned in one plane during cylinder motion, reducing off-axis loads, leaks, and hose wear.

An external adjustment screw and bearing element shift distributor plate timing without disassembly while reducing eccentric pin wear.

An added sealing portion and adhesive close gaps at groove steps in resin pipe joints, preventing leakage without precise cutting.

Fluid pressure routed through a double-tube clearance shrinks the clamping cylinder while preserving bidirectional chamber actuation.

A pressure relief valve and accumulator raise retraction resistance after a set stroke to keep track tension during emergency braking.

Cold-formed calottes reinforce a punched connection hole so a cylinder pipe can be annular-welded with less contamination and higher strength.

A piston-actuated damping valve narrows the orifice near stroke end to dissipate kinetic energy and reduce bottoming damage.

Two oppositely moving clutch elements drive an output gear to give concrete boom arms full rotation with lower joint weight and precise alignment.

An internal sealed stop mechanism lets pneumatic linear actuators adjust stroke length without exposing parts to harsh environments.

A magnetostrictive sensor inside the hydraulic cylinder tracks boom extension without complex cable routing, enabling reliable jib capacity reduction.

Crimping tube ends into annular grooves secures hydraulic cylinder heads and caps with strong, fluid-tight retention while cutting assembly time and cost.

A motor-driven locking shaft with rack, gear, and electromagnetic bolt replaces manual hoist locking in tight spaces for safer, more reliable operation.

Laser ring welds replace threaded end closures to cut tube wall thickness, simplify assembly, and maintain fluid-tight cylinder sealing.

Thickened nodes and rigid panel-link geometry let an inflatable cylinder compress tightly while maintaining pressure resistance under expansion.

A roller-based cam brake cuts wear and radial bulk in articulated lever actuation units while allowing manual brake deactivation.

A floating ring body decouples piston guidance from damping, enabling precise cushioned end-stroke and reliable return flow in working cylinders.

A common shaft, clutch, and pressure-driven expansion scheme lets multiple eversion actuators extend and retract with lower size and cost.

Combining the steering gear, hydraulic pump, and motor into one unit cuts installation space, weight, and hydraulic losses in utility vehicles.

A spring-loaded conductive contact detects piston position in a hydraulic cylinder with one signal line, avoiding complex electronics and EMI.

A nested hydraulic piston spud pole speeds shallow-water anchoring, saves deck space, and lets vessels weathervane for current-driven power generation.

Directly coupling the pretensioning device to a hydraulic pivot piston cuts wear, noise, and clothing snagging in prosthetic joints.

Two non-collinear cylinders and a roller train drive a pinion to keep aircraft actuation force while fitting tight installation envelopes.

A double-chamber hydraulic actuator uses spring-restored piston rods to lock and release telescopic boom segments with less mechanism complexity.

A nested central torque member and helical splines cut rotary actuator length and weight while preserving torque output and durability.

A threaded-shaft roller brake cuts wear and radial size in cam actuation units while allowing quick brake deactivation during setup or emergencies.

Curved pressure chambers and linear-style piston seals cut internal leakage, helping rotary actuators hold position under load.

Accumulator pressure and a relief valve raise retraction resistance after a set stroke to keep track belts engaged during high braking torque.

Controlled multi-stage heating cures actuator seals to reduce leakage and deliver stable frequency response, even after vibration.