Servomotors TRIZ Cases

Parallel variable-displacement hydraulics and an accumulator cut slip-related power losses while improving compaction machine power distribution.

Mechanically coupled pistons replace active valves in a reversing-pump hydraulic assembly, cutting complexity and pressure loss.

Engine torque load signals let the controller auto-calibrate electrohydraulic pump start current without extra pressure sensors or manual setup.

Continuous piston feedback lets a universal valve stop air flow before pressure equalization, cutting compressed air waste and programming effort.

Back pressure, anti-cavitation valves, and continuous oil conditioning help hydraulic motors stop heavy inertial loads with less noise, oscillation, and oil heating.

Separate meter-out valve control uses drainage pressure feedback to improve hydraulic actuator deceleration and operability.

Hydraulic control keeps reciprocating pump piston rods in tension to prevent buckling, reduce wear, and extend pump life.

Hoist-line pressure feedback limits side-shifting force by load weight, preventing clamp force loss and load slippage on fragile loads.

Controller-calculated valve openings let hydraulic excavators control actuator speed and swing torque independently during combined motion.

Progressive valve current correction reduces hydraulic flow before stroke end, smoothing movable-member deceleration and avoiding speed steps.

A prioritisation valve lets the cooling fan pump back up tractor steering pressure, cutting pump count, cost, and installation space.

Pressure-difference sensing across an orifice helps detect hydraulic undersupply or pressure buildup and adjust valve or pump output.

A solenoid-adjusted pilot pressure changes LS differential pressure to improve hydraulic pump horsepower control and cut energy loss.

Angled multiport pod inlets merge high-pressure fracturing fluid in the flow direction, cutting turbulence, energy loss, and resonance.

Raising hydraulic pump standby flow in hoisting mode improves boom and arm response while avoiding higher energy use in normal digging.

Pressure feedback and meter-out restriction keep pilot pressure stable during boom lowering or arm crowding, preventing cylinder speed loss.

Closing secondary-circuit valves isolates paired actuators from cross-talk, improving grading accuracy in construction machine hydraulics.

Staged spring engagement controls actuator shaft travel across axial ranges, improving exhaust gas regulation and turbocharger longevity.

A nested angle unit between boom rotation devices increases tool reach while preserving angular positioning on mining and construction vehicles.

Pressure multiplier cylinders add discrete force levels in work machine hydraulics without the weight and complexity of asymmetrical multi-chamber cylinders.

A reversible pump, accumulator, and valves match hydraulic pressure to each tool’s force demand, cutting power use and oil heating.

Pressure feedback and a proportional valve keep hydraulic cylinder speed stable across varying loads, including smooth low-speed motion.

Pilot pressure sensing blocks straight travel mode during work-device operation, letting construction machines follow intended curved motion.

An upstream flow control valve and target opening calculation keep stick cylinder supply accurate without enlarging the direction change-over valve.

Sensor-based pump control matches pressure and flow demand for mixed hydraulic consumers, cutting energy use and startup torque.

Measured piston speed is compared with a target and hydraulic pressure is corrected to keep valve actuation time stable across temperatures.

A multi-surface cylinder circuit switches regeneration and force modes to simplify hydraulic axles while holding pressure and locking piston position.

Predefined pressure and throttle profiles let a fluidic actuator reach target positions with damped motion, avoiding complex closed-loop control.

A pilot-operated control valve closes the return passage in neutral to block erroneous signals from causing unintended cylinder retraction.

A feedback valve limits variable-pump pressure and flow during cold starts, cutting drive motor load and hydraulic energy loss.

Coil temperature feedback adjusts regeneration valve opening to limit motor heating while preserving hydraulic energy recovery.

A feedback-path valve interrupts pump control during startup to cut pressure, flow, and engine load in cold-start hydraulic systems.

Pilot-operated switching valves use fluid pressure to drive continuous pressure boosting without electromagnetic control, cutting circuit complexity and size.

An internal gas chamber replaces the external accumulator, cutting space and hose connections while biasing the piston for responsive hydraulic operation.

Pressure-differential valves switch an auxiliary pump to hold user-point pressure drop at design value when main pump flow reaches its limit.

Engagement assemblies let an aircraft plug door carry in-plane fuselage stress, avoiding extra framing, weight, and conversion complexity.

Position-based correction curves adjust parallel crane arm speeds to reduce unwanted motion and improve smooth TCP joystick control.

A kneel stop built into the retract actuator creates a kneeled landing gear position without extra actuators, reducing weight and complexity.

A pneumatic-cable hybrid muscle combines air-pressure stiffness with cable tension to deliver bidirectional joint support for flexible exoskeletons.

Integrated pump assemblies control actuator flow and pressure without extra valves, cutting complexity, cavitation risk, and heat.

Hydraulic chambers inside and around the rack increase working area and mechanical advantage for shorter nose wheel steering travel.

Pre-increasing pump flow before valve closure prevents uncontrolled press-cylinder motion in hydraulic powder presses, improving reliability and cost.

Variable regeneration flow control lets hydraulic actuator cylinders keep fine slow-motion precision while reusing return fluid for faster motion.

Using only open and close ports, this case shows how cam-sequenced hydraulics lock and unlock rams while keeping the wellbore sealed.

Coupled working chambers and a piezoelectric pump enable four-quadrant actuator motion without active flow-control components.

An upstream flow control valve separates supply from discharge control, keeping directional valves smaller while maintaining accurate actuator flow.

An internal ventilation sleeve feeds front and rear air chambers directly, shrinking the cylinder for closely spaced bolt tightening.

Dual return lines linked by a flow restrictor help detect check valve failure and prevent over-pressurization in thrust reverser hydraulics.

Fluidic braking handles most deceleration, then a mechanical damper and pressing phase stop heavy pivoting loads without shock or end-position drift.

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