Servomotor Components TRIZ Cases

A switching valve redirects oil released during boom lowering to arm or bucket cylinders, boosting excavator speed while reducing wasted hydraulic energy.

Integrated relay passages connect drive valves to pilot oil lines, enabling electric valve control in compact work-machine hydraulics.

A movable separator reconfigures pneumatic outlets so machining centers can match different workpiece sizes without replacing the distribution unit.

Internal spool pathways isolate filtered control fluid from the main flow, enabling compact high-flow servovalves with less leakage and contamination.

A housing-mounted torque sensor near the drive-shaft flange improves torque accuracy without adding shaft complexity, size, or cost.

A three-part check valve uses a stop-face hole array to maintain flow area, cut pressure drop, and reduce leakage in gerotor motors.

A spool-based bypass valve map widens pressure-control input range, cuts energy loss, and prevents oil leakage at high pressure.

Separating the motor-pump-tank driving unit from the hydraulic cylinder improves layout freedom, avoids interference, and cuts hose complexity.

A coiled fluid actuator uses conductive-layer resistance feedback to achieve long extension and precise length control.

A three-valve reservoir and pump layout delivers repeatable positive and negative pressure for precise microlitre aspiration and dispensing.

An electric oil makeup valve and paired leveling cylinders prevent oil starvation, fork tilting, and leakage during automatic forklift leveling.

Opposite-direction dual pumps and servo motors let a sheet metal press run at low speed without damaging motors or pumps.

Fixed links between valve block outputs and inputs speed hydraulic oil delivery, cutting response delay and energy loss in work machines.

An intermediary manifold block limits bidirectional hydraulic flow and pressure to protect vacuum material handlers from non-conforming supplies.

A third load pressure line with check-valve routing relieves hydraulic pressure peaks to tank and protects mobile machine structures.

A discharge-branch pressure compensator with a controlled oil escape path improves flow control under dragging loads while limiting pressure spikes and oscillation.

A constant-pressure source and separating element let a ring accumulator keep hydrostatic cylinder pressure stable in small pressure ranges.

Multi-stage hydraulic pressure relief switches thresholds by fork height, reducing overload risk aloft and avoiding oversized components.

Integrated annuluses enable 3D hydraulic routing in a unitized transmission valve body, removing separator plates and fasteners to cut size and assembly time.

An articulated mulcher and independent weeding arm clear under fences on uneven ground while retracting around posts.

Pressure sensing in the tailgate actuator alerts operators when a round bale reaches target density for timely discharge.

Multiple venting paths with different flow resistances let a pneumatic piston brake and accelerate smoothly under changing loads and orientations.

Closed-loop and feed-forward control keeps a work vehicle bucket at target angle across boom travel, reducing delay and unintended dumping.

Cross-piloted valves and pressure control let double-acting hydraulic actuators complete one preset cycle, control bidirectional loads, and limit pressure peaks.

A nested inline check valve blocks air intrusion and oil leakage in hydraulic actuators while fitting within a tight actuator envelope.

A reduced-area guide portion releases trapped fluid to prevent spool tilt and preserve smooth sliding under high-pressure flow.

A pressure-responsive cushioning valve opens extra gas discharge paths at stroke end to prevent bouncing and avoid manual throttle adjustment.

Laser-drilled filtration and outlet flow restriction keep contaminants from the servovalve first stage, reducing blockages and maintenance.

Pressure-responsive valve control keeps piston speed load-independent while cutting gas use in exhaust-throttled drive chambers.

A fixed orifice in the piston-side line keeps the check valve open during low-flow, high-load retraction to suppress EHA vibration and noise.

Redirecting sub-pump flow to the main pump suction side holds target pressure, preventing cavitation while reducing pump load and energy use.

Dynamic bypass pressure control matches pump output to actuator demand, cutting overflow losses, pressure surges, and response delay.

Dynamic lever timing helps construction machines avoid false auto-idle cancellation and quickly return the power source to reduced consumption.

Precisely machined conical faces and a biased catch create a fluid-tight shuttle valve seal without elastomer rings.

A pressure-triggered hysteresis valve switches and holds clutch state without external actuation, cutting hydraulic energy use and complexity.

Closed-bottom grooves and through openings decouple spool rotation from commutation angles, improving hydraulic steering stability.

An annular pressure accumulator and shut-off valve make restraint hydraulic cylinders lighter, more compact, and easier to replace.

Check valves and a hydraulic chamber maintain downhole actuation pressure without damage-prone surface control lines or pumps.

A control valve varies inlet cross-section from exhaust-side pressure feedback to cut gas use while keeping load-independent motion.

A sampling hydraulic line measures true oil temperature so the controller can correct valve signals and keep actuator flow control accurate.

A dual-spring, sealless valve cartridge combines relief and reverse free flow to cut cavitation risk, cracking pressure, and added parts.

A buffered pilot air path and dual throttle valves stabilize switch timing in air cylinder exhaust control, reducing pressure-drop instability.

An integral anti-rotation nose replaces a pressed dowel pin in a hydraulic control spool, cutting assembly steps while reducing wear and load failure.

An integral anti-rotation lug replaces the pressed-in tensioning pin, cutting assembly steps while reducing wear and extending slider service life.

During combined actuator operation, pump flow is kept above total demand while valve openings are corrected from sensed inflow to prevent interference.

A lever-based mechanical feedback path replaces sensors and power electronics in a piezoelectric servovalve, improving reliability and vibration behavior.

A removable boom sub spool lets one excavator multi-control valve support both boom recycling and regeneration without full valve replacement.

A pressure lowering device vents the valve spring chamber to tank at idle, cutting hydraulic energy loss while restoring load-sensing Δp on demand.

Small stop-face outlet holes simplify a hydraulic gerotor check valve while preserving flow capacity, sealing, and cavitation protection.

A control valve and accumulator let one pump alternate between clutch pressure and lubrication flow, cutting hydraulic losses and pump complexity.