Servomotors TRIZ Cases

A rod-bushing hermetic coupling replaces bulky end-cap guidance in a three-position power cylinder, improving alignment and neutral positioning.

A slide valve and pressure-delta feedback stabilize negative pump control in open-centre hydraulics, cutting energy dissipation in small machines.

Motor torque feedback shifts the open-center valve to neutral or lowers speed, cutting hydraulic power draw in electrified work vehicles.

Sensor coils track piston motion in a pressure exchange device to isolate abrasive fluids, reduce wear, and cut hydraulic downtime.

Separate return lines and synchronized lowering valves let mast and free-lift cylinders retract together, cutting lowering time and jerk.

A five-chamber nested cylinder balances fluid pressure to keep volume constant while enabling bidirectional damping and hydraulic locking.

Embedding the sequence valve inside the hydraulic pump cuts bulk and cost while enabling phased ram extension for high-force hydraulic tools.

A variable displacement power controller matches actuator pressure and volume demand to cut orifice losses and wasted heat in fluid power systems.

Gradual pilot pressure ramping smooths transitions to combined actuator operation, preventing shocks while cutting valve and bleed-off line count.

Pressure-triggered valve routing sequences multiple cylinders to prevent stabilizer foot rotation and support dual control without system changes.

Independent valve control uses chamber and supply pressure feedback to shape pneumatic motion while cutting energy use and wear.

Pressure-sensing bladders and a secondary hydraulic circuit hold clamp force at a safe threshold to prevent load crushing or slippage.

A synchronous motor matches accumulator and pump pressure to load demand, cutting hydraulic energy loss and improving recycling efficiency.

Cross-connected hydraulic chambers synchronize bearing housings in a roller crusher to prevent skewing, protect seals, and keep crushing pressure stable.

A subordinate control valve merges second-pump flow only during dual-actuator use, speeding boom motion while avoiding pump load and fuel loss.

Integrated sensors and electronics compare valve state with piston position to prevent unnoticed pneumatic actuator faults and line stoppages.

A dual-path hydraulic drive routes fluid from the pump or accumulator to cut pressure loss, reduce engine load, and improve work machine efficiency.

Paired continuous inlet and outlet valves isolate faulty components and keep hydraulic steering control active even during dual valve failures.

A spool valve and pressure feedback reduce variable pump displacement under overload, preventing refuse vehicle pump stall and motor damage.

A disc-shaped brushless motor shortens and lightens a battery-powered hydraulic unit, enabling single-person rescue use in confined spaces.

A switching valve lets the second pump pressurize the boom rod-side chamber for vehicle body lifting without a dedicated pressure source.

A switching valve opens the relay line only during boom raising, lowering second-pump pressure and motive power in the excavator hydraulic circuit.

A throttle-based hydraulic circuit bleeds air from detachable winch brake chambers to prevent pressure delay and keep braking responsive.

A nested two-piston hydraulic press assembly uses one fluid channel to raise force while keeping cylinder size and channel complexity low.

A two-pump hydraulic layout uses a priority valve to keep implement flow stable while auxiliary devices run without pressure spikes.

A three-position arm switching valve with an internal check valve recycles oil during crowding and enables independent meter-out control during pushing.

A locking mechanism decouples one piston while a nested piston maintains output, enabling variable flow with less vibration, noise, and maintenance.

Continuous area-ratio pressure feedback improves electrohydraulic lift lowering control, preventing over-pressing and reducing flow-related pressure error.

A digital controller adds a parallel switching valve when proportional flow alone cannot sustain target pressure in fast refilling volumes.

A controller switches between pressure and flow control based on speed deviation to improve swing motor acceleration and speed tracking.

Using an accumulator, constant-flow pump, and electro-valves, this press ram control circuit cuts pump cost while improving low-speed positioning.

Two pumps and an active valve combine high pressure with cooling flow to speed clutch actuation while cutting power use and motor heat.

Intermittent servo-driven parallel pumps fill pressure accumulators only as needed, cutting hydraulic energy use, oil heating, noise, and leakage.

Two parallel air-driven pumps and an accumulator maintain continuous oil delivery, boosting actuator speed while reducing size, wear, and spark risk.

A three-way compensator redirects excess hydraulic flow to a bypass recovery branch, cutting choking losses while maintaining actuator pressure.

By limiting motor angular acceleration from hydraulic power demand, this case keeps electric hydraulic machines responsive without exceeding allowable power.

Object detection triggers hydraulic flow reduction to restrict machine motion, then safely relaxes limits to balance protection and work efficiency.

Torque-demand estimation and velocity limiting smooth hydraulic pump flow changes to prevent engine lugging under varying actuator loads.

A third hydraulic connection reuses boom cylinder flow during lowering to cut throttling losses, reduce pump power, and enable energy recovery.

A replaceable orifice and downstream bent passage stabilize flushing flow, easing cooling adjustment while reducing pulsation and pipe vibration.

A single switching valve coordinates working-line and short-circuit check valves to enable regeneration, load holding, and clear four-quadrant control.

Pressure-based valve blocking lets arm regeneration use one switching valve, simplifying assembly and reducing pump discharge flow.

A pressure-sensitive hydraulic loop reuses lowering-chamber fluid to speed empty lifting while keeping loaded lifting smooth.

A pressure-regulating valve equalizes accumulator and chamber pressure before opening flow, suppressing vehicle vibration without sensors or complex control.

A blended hydraulic-electric actuator system switches power paths by load to improve efficiency and reduce jerk during mode changes.

Separate return lines and proportional valves let mast and free lift cylinders lower together for faster, smoother load handling.

Load-based switching between hydraulic and electric power smooths actuator mode transitions, cutting jerkiness and energy waste.

Real-time pressure prediction opens a parallel switching valve before pressure drops, preserving control accuracy while meeting target pressure.

Differential pressure feedback adjusts pump pilot pressure or engine speed to hold target work vehicle speed and help prevent stalling.

Hydraulic pressure sensing replaces proximity switches to detect both tool turret piston end positions with less space and lower cost.