Servomotors TRIZ Cases

A three-piece piston with bushing and lock nut raises thrust reverser load capacity while reducing friction, wear, and machining complexity.

Electronic control modules tune outlet pressure and delivery volume to reduce hydraulic jolting and improve motion stability in mobile work machines.

Dual hydraulic flow paths route winch and idle fluid through cooling before reservoir return, cutting overheating and recovery delays.

Dual fluid drivers and isolating valves keep a linear actuator operating in fail-safe mode while reducing cavitation, heat buildup, and downtime.

Stored hydraulic pressure and nose wheel load automate lowering before release, enabling safe emergency uncoupling during total system failure.

A warm-up tube and one-way check valve let working-machine hydraulics switch modes smoothly while blocking reverse flow interference.

A bladder-based hydraulic force circuit limits clamp pressure independently of arm movement to prevent load damage while maintaining secure lifting.

A return-line restrictor links thrust reverser and lock circuits to expose check valve failure through slower depressurization and timing changes.

A pressure-differential priority valve secures flow to a first actuator during simultaneous travel and work operations, avoiding complex valve control.

Automatic bypass routing returns hydraulic motor flow to the reservoir when backpressure rises, preserving pressure differential and attachment performance.

Pump displacement and center bypass valve opening are adjusted by mode and load pressure to cut precision-operation energy loss.

A summation element redirects excess constant-pump flow to saturated LS sections, cutting energy dissipation while preserving smooth hydraulic response.

By estimating actuator torque demand and limiting velocity change, this control approach suppresses engine lugging in hydraulic construction machines.

A pressure compensator switches in an add-on pump only when load demand exceeds the fixed pump, ensuring reliable supply with less wasted flow.

A load-sensing pressure booster raises control pressure in tractor hydraulics to speed actuator response and avoid slow loading cycles.

Parallel check valves balance high flow and pressure equalization in a crane cylinder to prevent jumps and improve hydraulic efficiency.

A bypass valve short-circuits the pressure booster until higher output pressure is needed, cutting energy use without interrupting fluid supply.

An intermediate member routes hydraulic fluid through a ball-and-socket joint, avoiding external rotating links while preserving actuator motion.

Odd-even valve interlocks block gear commands while clutches are engaged, simplifying hydraulic shift control and preventing transmission misoperation.

A solenoid-controlled return flow opening cuts hydraulic pressure loss during heavy excavation while preserving cylinder speed control.

A relief valve with pressure override smooths merged pump flow during arm lifting, reducing operator impact and collision sound.

Alternating low- and high-pressure fluid paths by duty ratio recovers boom-cylinder energy while keeping actuator speed aligned with lever input.

Demand-based grouping of hydraulic services and loads improves pressure and flow control, cutting valve count, fuel use, and energy loss.

Closed-loop control of pump speed and valve opening stabilizes actuator flow and pressure while cutting heat, energy use, and cavitation risk.

An auxiliary pump and low-pressure accumulator keep actuating pressure available for immediate stroke adjustment at high loads.

A switchable bypass path and backflow valve help a brushless hydraulic pump avoid start failures, pipe pressurization, and reverse flow.

Two-section floating pistons create unequal sealing areas to speed switching and stabilize the central position in a three-position cylinder.

A brake-release piston rotates with the housing and shaft to keep inner and outer seals static, cutting wear and enabling larger hydraulic brake assemblies.

A switch-valve hydraulic circuit sums flow for faster actuator motion while controlling single- or double-effect auxiliaries without backflow.

Compressed air tanks and a hydraulic ram replace combustion to deliver continuous low-torque propulsion with adjustable power and lower energy use.

A dual-piston spool valve keeps hydraulic flushing compact and responsive under reversed single-rod cylinder loads and high flow rates.

Joystick-based torque allocation shifts engine output between hydraulic pumps when demand exceeds supply, keeping excavator motions responsive.

Recovered boom-cylinder oil is stored in an accumulator and fed to main and pilot circuits to reduce pilot pressure loss and engine fuel use.

Adjustable regeneration spool openings stabilize boom descent despite accumulator pressure fluctuation while recovering hydraulic energy.

A bidirectional pump and check valve layout cuts hydraulic circuit complexity and pressure surges when switching a suspended load.

An electric motor-driven pump maintains pile clamping pressure during work breaks, cutting diesel use and avoiding unnecessary engine restarts.

Multiple gas generators pressurize hydraulic fluid on demand, replacing leak-prone pre-charged accumulators for reliable subsea and industrial actuation.

One cylinder cavity stays at constant pressure while the other is regulated, simplifying vacuum valve piston control and stabilization.

An integrated reservoir, reversible pump, and diaphragm isolate actuation fluid, cut flow restrictions, and remove external hydraulic lines.

A pressure-regulating valve equalizes accumulator and chamber pressure to suppress vehicle vibration without sensors or complex control.

A tandem pneumatic piston intensifier boosts hand-held hydraulic tools past 500 bar while cutting seal wear, air use, and noise.

Differential gas pressures and a pusher-linked dual-tube layout create three piston rod positions without added sensing complexity.

Predefinable cylinder pressure decouples spreader frame spring rate from pivot position, keeping suspension hardness and damping consistent.