Servometer Circuits TRIZ Cases

Rotor inertia stores and reuses pressure medium energy in an electrohydraulic unit, avoiding braking resistors and extra capacitors.

A clamped large cylinder and smaller rapid-motion cylinder cut hydraulic fluid movement, reducing power use and valve load.

A piston-based depth compensation valve maintains subsea hydraulic overpressure without gas expansion losses or costly depth-matched machining.

A pressure-responsive throttle balances flow between travel motors and the working arm during excavator slip, preventing pump interference.

Excess hydraulic energy is diverted through a recovery circuit to a motor-generator, storing electric power while maintaining load pressure.

A pilot-pressure valve control links boom energy recovery to engine assist only when needed, reducing unnecessary hydraulic load and fuel use.

Auxiliary piston motor-generators feed energy back through a common DC bus, cutting press-drive losses, noise, and cooling needs.

Water pressure drives a piston and buckling column to trigger underwater actuation at a set depth without batteries, motors, or electronics.

Spring-loaded hydraulic cylinders shift locking and driving bolts to safe states, allowing crane jib retraction during malfunctions.

When a battery cannot accept charge, a valve routes hydraulic flow through a fluid resistor to dissipate excess power and maintain work vehicle braking.

Pressure-dependent valves recover hydraulic energy as electricity while reducing control complexity and enabling fast load relief.

Sensor fusion predicts over-center load transitions so hydraulic flow can be adjusted in time to limit pressure oscillations and energy waste.

Distributed hydraulic power units linked by data synchronize climbing formwork motion while reducing pressure loss and oscillating volume.

Adaptive regeneration flow control keeps hydraulic actuator speeds balanced during combined operation even when engine speed is reduced.

When control electronics fail, a fail-open hydraulic path releases the crane telescope cylinder lock for safe retraction and maintenance.

Auxiliary pistons generate power through a common DC bus, cutting hydraulic losses, cooling demand, oil volume, and press noise.

Corner seal rings and dynamic porting help a rotary vane actuator cut leakage and extend rotation to 0-360° in demanding control applications.

A housing-supported lever lets the sensor detect swash plate tilt accurately without concentric alignment, improving layout flexibility.

Using hydraulic fluid to spin the main pump in drive mode restarts the press motor after idle while cutting switching wear and power use.

A clampable force-building cylinder lets a hydraulic press switch to a smaller rapid-movement cylinder, cutting fluid displacement, energy use, and valve load.

Closed-loop hydraulic control corrects rear-wheel steering error by adjusting cylinder oil flow, improving low-speed heavy-load vehicle handling.

An alternating magnetic field heats an internal conductive element to melt wax faster, avoiding sealed heater connections and slow conduction.

A sealed aramid-reinforced elastomer tube replaces pistons and seals, enabling water-based actuation with long stroke and low leakage.

A portable pump-and-filter module replaces and cleans hydraulic fluid in compact self-contained drives without disassembly, extending service life.

An integral purge mechanism drives the poppet valve to maximum opening to clear debris, restore closure, and prevent regulator leakage.

Pre-set hydraulic chamber pressure absorbs cushion pin height variation quickly, stabilizing die cushion load while reducing surge pressure and seal wear.

Electric motor control of a hydraulic pump/motor cuts throttling losses and recaptures energy across multiple pressure rails.