Servomotors TRIZ Cases
- Driving Pump Exhaust Channel for Gas-Tolerant Clamping Force
An exhaust channel returns trapped gas from hydraulic chambers to the oil reservoir, preserving oil flow and clamping force under reaction load.
- Hydraulic Working Vehicle Control for Fast Oil Flow Response
Preemptive oil flow control from operator input suppresses hunting and improves hydraulic actuator response during rapid pressure changes.
- Axial Piston Pump Zero-Crossover Control Without Orifices
Sudden pressure changes and zero-crossover detection let an axial piston pump reverse continuously without orifices that limit dynamics and add variance.
- Hydraulic Pump Speed Control With Motor Acceleration Limits
Motor acceleration is limited from hydraulic power demand to cap electric power draw while maintaining hydraulic pump response for multiple actuators.
- Hydraulic Prop Pressure Intensifiers for Precise Shield Support
Individual pressure intensifiers and sensors raise each hydraulic prop to its target pressure without increasing overall shield support pressure.
- Boom Cylinder Energy Regeneration Using Alternating Pressure Paths
Alternating high- and low-pressure paths lets boom-cylinder discharge recover energy while matching actuator speed without a larger accumulator.
- Power-Asymmetric Linear Actuator With Hydraulic Dissipation Control
A hydraulic restriction and power screw split dissipation and generation, enabling high-force braking in a lighter linear actuator.
- Fluid Pressure Cylinder Return Circuit Using Chamber-to-Chamber Air Reuse
A check-valve return circuit reuses pressure between cylinder chambers to shorten return time, simplify plumbing, and save energy.
- Ring-Line Hydraulic Layout for Independent Press Units
A ring line with unit-level auxiliary pumps cuts hydraulic line size and maintenance while keeping press units independently supplied.
- Power Shovel Hydraulic Pump Layout for Lower Motor Energy Use
Separate primary and secondary hydraulic pumps cut unnecessary oil supply, reducing motor load, inverter count, and energy waste.
- Hydraulic Flow Confluence Control for Boom and Option Actuators
Selective confluence valve control prevents boom-down surplus flow from disturbing option actuator response and operator manipulability.
- Hydraulic Circuit With Shared Bypass for Quick Return and Regeneration
A shared bypass oil path and pilot control valve handle quick return and regeneration, cutting valve count, size, and cost.
- Excavator Pump Torque Distribution Using Joystick Demand
Joystick-based torque allocation shifts engine output between hydraulic pumps when demand exceeds supply, improving excavator control.
- Accumulator Circuit for Recycling Exhaust Pressure in Fluid Power
Recycled exhaust pressure is stored in an accumulator and reused in fluid power circuits to cut dumped energy while maintaining actuator output.
- Variable Displacement Hydraulic Cylinder Flow Control at Load Reversal
Pressure-based pump capacity switching keeps single-rod hydraulic cylinder speed stable during load reversal and reduces mechanical shock.
- Closed-Circuit Swing Hydraulics for Reverse Lever Cavitation
During swing deceleration, reduced pump delivery and charge-oil supplementation prevent negative pressure and cavitation after reverse lever input.
- Piezohydraulic Actuator Mode Switching for Speed-Force Control
A coupled dual-output hydraulic layout switches smoothly between high-speed and high-force motion without jerking or added actuator bulk.
- Shift Control Hydraulic Circuit for Actuator Failure Evacuation
Multiple actuation valves and a manual backup path keep hydraulic pressure switching available for vehicle evacuation after electric actuator failure.