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.

A relay-based pilot fluid circuit improves pressure distribution across actuator valves to prevent engine stall in working machines.

Dual accumulators and a monolithic piston deliver compact fail-safe valve closure, line cutting, and reopening for subsea well kill.

Plastic deformation stakes the cylinder tube end to lock and seal the head cover, cutting parts, assembly time, and cost.

Ports recessed into the covers and resilient latching rings shrink cylinder diameter and length while simplifying cover attachment.

A valve-controlled hydraulic filter routes leak oil by pressure condition, enabling ultra-fine filtration without harmful back pressure.

Separate fluid-driven rotary and stroke sections enable accurate shaft stroking and rotation with lower power use and a compact cylinder layout.

A throttled hydraulic chamber cushions piston acceleration when counter-pressure suddenly disappears, reducing wear and extending tool life.

Staggered testing of redundant hydraulic press and cutter valves detects faults during each cycle to prevent unsafe beam movement.

A hydraulic fluid supply device uses a variable-volume pump to eject pressurized fluid with low current consumption.

Dual position detectors on the piston rod resolve rotational deviation gaps, enabling precise semiconductor chip mounting.

Inclined reinforcing plates lock against the band edges to prevent rotational misalignment during fastening, ensuring stable sensor positioning.

A hydraulic recharging circuit transfers pressure from the annulus zone to pressurize subsea accumulators.

Segmented annular elements absorb side loads to prevent misalignment and shaft damage in telescopic cylinders without adding weight.

A rotating actuator connects a train front hatch to the car body, enabling smooth opening motion.

A pneumatic motor with a vent opening discharges fluid from driving chambers to prevent spring wear and jamming in scrap removal systems.

Composite walls with varying elasticity direct shape change in pneumatic control elements, eliminating uncontrolled deformation and custom support structures.

Temperature sensors detect hydraulic oil heat, triggering an actuation valve to adjust opening degree and balance pressure with thermal dissipation.

A predictive oil cooling circuit manages flow through a bypass valve to maintain optimal thermal conditions.

Independent hydraulic circuits eliminate synchrony problems from mechanical play, ensuring accurate vehicle handling and hydraulic integrity.

A spring-biased control valve isolates brake pipe pressure variations to ensure synchronized parking brake release across multiple rail cars.

Segmented vent lines and dynamic valve switching resolve the contradiction between rapid vehicle lowering speed and venting noise levels.

A double acting locking cylinder uses a flow divider to maintain fluid dynamic floating position during axial movement.

A cylinder apparatus uses engaging balls to move a detection rod in an intersecting direction for position sensing.