Servomotors TRIZ Cases

Compressed air drives dual pistons on a rack to deliver precise MRI-compatible motion without electromagnetic field distortion.

Stroke sequence detection keeps free lift ahead of mast lift in a common hydraulic circuit, preventing premature mast extension.

A linear electrohydrostatic actuator replaces valves and gears to cut prosthesis power use, noise, and size while recovering energy.

A pressure compensator and solenoid pilot control stabilize LS differential pressure against oil temperature changes for accurate horsepower control.

A dedicated air bleed line uses return-line back pressure to purge trapped air from a hydraulic relief valve without losing pressure control.

Series boosters, 4-way valves, and anti-cavitation caps cut pressure loss and turbulence while supporting precise high-frequency hydraulic output.

Multiple pressure receiving surfaces let the circuit vary boost ratio with input pressure, maintaining discharge pressure and oil flow with less energy waste.

A pressure-sensitive valve and one-way fluid loop speed empty fork lifting while preserving safety valve control and cycle time.

By limiting pump capacity change by rotational speed, the controller reduces shock and cavitation while keeping hydraulic actuators responsive.

Inflow-pressure-based regeneration valve control limits electric motor load while preserving hydraulic energy recovery efficiency.

Coil-temperature feedback adjusts a hydraulic cylinder regeneration valve to preserve motor life while maintaining regeneration efficiency.

Selective pilot flow sourcing balances pressure drops in work vehicle hydraulics to cut energy use while stabilizing low-load valve operation.

Multiple pumps, a merge passage, and pressure-compensated flow control keep hydraulic actuators supplied during simultaneous operation.

Controller-driven flow reversal compensates pump and motor leakage to maintain precise descending speed and safer micro-motion control.

Feedback compensation adjusts hydraulic valve openings and pump flow to keep actuator speed accurate during combined boom and slewing loads.

Parallel cylinders and a roller train rotate a pinion to deliver large steering angles in a compact aircraft actuator package.

A manual switching valve isolates the external bidirectional manual pump to prevent oil backflow, stabilize pressure, and simplify hybrid upgrades.

A spool valve and feedback control limit hydraulic pump torque in refuse vehicle lifting circuits to prevent motor stall and pressure damage.

Multiple hydraulic pump motors share meter-out flow in parallel to regenerate boom-cylinder fluid energy while avoiding oversized pump motors.

Pressure-feedback pump control minimizes surplus flow in closed-center LS hydraulics, cutting pressure losses while maintaining stability.

Coaxial pistons, dual servo pumps, and a flow control valve smooth press mode changes to avoid pressure peaks and cut energy waste.

Target speed control cuts combined electric-drive and hydraulic-machine losses based on operating point, improving efficiency and limiting overheating.

Pistons isolate clean high-pressure fluid from abrasive or caustic flow, transferring pressure while reducing pump wear, downtime, and maintenance.

Separate supply and bleed flow paths let a hydraulic work machine cushion stroke-end impact without losing velocity control accuracy.

Pressure sensors and ECU feedback help excavator operators avoid relief valve opening, maintaining actuator output with less lever effort.

Pressurized fluid inside the actuator rod adds retraction force, cutting landing gear actuator size, load, and energy use while damping deployment.

Lever-position-based pump switching stabilizes hydraulic flow combining, reducing shock, throttling loss, and control instability.

Pilot-pressure valves vary regeneration and exhaust flow so hydraulic cylinders avoid jump-forward and keep precise control in slow extension.

A branched signal passage with throttles, a switch valve, and a pressure sensor detects spool shifts without enlarging the valve.

A compact pump-actuator assembly replaces vulnerable hoses and separate valves to improve reliability and maintain fail-safe hydraulic control.

Differential pressure, cushion assemblies, and flow control valves create a stable three-position pneumatic cylinder without sensors.

Switching shut-off valves and a reciprocating piston structure replace resistive proportional control to cut hydraulic transformation losses.

Integrated valve and actuator cavities with position sensing detect mismatches between solenoid state and piston position to avoid line shutdowns.

Load-aware proportional valve control smooths actuator cylinder descent, limiting pressure spikes, instability, and cavitation.

A controller shifts excavator hydraulics from split pump supply to dual-pump tool supply when high-flow work functions would otherwise lose power.

A valve device holds the pressure delta across the directional valve, stabilizing negative pump control and cutting hydraulic energy loss.

Motor current sensing and CAN control determine compactor fullness, cutting false full alerts and unnecessary waste hauls.

Short-circuit cylinder connections and electric displacement units cut valve losses while improving hydraulic control precision and reliability.

A dummy-load valve arrangement stabilizes low-load hydraulic actuator speed during combined operation while reducing shock and fluid heating.

A servo and intensifier valve temporarily raise hydraulic pressure at startup, boosting nose-wheel steering motor torque without oversizing.

Proportional bypass and check valves in a closed crane hydraulic circuit enable sensitive braking, smooth restarting, and controlled slewing.

Multiple linear actuators displace a toothed hoop to spread torque across gear teeth, reducing wear and improving high-torque motor durability.

A crossover pressure controller lets dual hydraulic pumps switch between combined and separate flow modes to improve vehicle efficiency and fuel economy.

Processing circuitry adjusts dual variable-displacement hydraulic pumps from discharge pressure to avoid engine overload and cut wasted energy.

A three-chamber hydraulic cylinder matches refuse compaction load phases to cut fluid use, reduce heat, and speed cycle times.

Discrete active-cycle fractions let an electronically commutated hydraulic machine meet demand while avoiding repeating patterns that trigger resonance.

A variable relief valve and compensator stabilize pressure and flow to option hydraulic actuators while reducing valve count and cost.

Predictive pressure limiting keeps swing motor torque smooth while preventing engine power overload as hydraulic flow demand rises.

A prefilling line and check valve let one motor-driven dual pump deliver fast clutch actuation and lubrication with lower energy use.

Separate meter-out and regeneration flow paths stabilize actuator response and cut pressure loss during hydraulic fluid regeneration.