Mechanical Machines/Dredgers TRIZ Cases

Closing secondary-circuit valves in operator assist mode isolates actuator cross-talk and improves grading accuracy in hydraulic machines.

Predicting dynamic center of gravity from actuator velocity lets hydraulic excavators slow front implement stops and limit tilt without extra sensors.

A shared centering mechanism and staggered pintle arm controls free space in loader pump packages and improve hydraulic hose routing.

Rate-limited switching between lever input and machine control keeps boom cylinder motion smooth during MC ON/OFF changes, reducing operator stress.

Equal division of the work range sets balanced starting positions for excavation, preventing low-soil final passes and preserving work efficiency.

Dynamic pump-to-actuator allocation balances dual-engine hydraulic loads, enabling smaller engines without sacrificing excavator work efficiency.

A pressure-boosting valve links boom cylinder chambers so discharged fluid can be recovered to the arm cylinder more often, cutting fuel use.

By limiting actuator speed to the lower of distance-based and pump-flow targets, this case keeps the bucket aligned with the target landform.

Sensor fusion and closed-loop hydraulic control hold earth-moving swing position on slopes by adjusting pump displacement and pressure.

An accumulator and drain line suppress boom-cylinder pressure fluctuation, reducing travel vibration during leveling and machine movement.

Driving torque is split across multiple worm gear mesh points to reduce circle drive stress, extend service life, and improve motor grader blade control.

A spool-and-stem valve combines bypass and reverse check functions to protect hydraulic hammer systems from low lubricant and backflow without electronics.

Inclined clamping surfaces and guided coupling parts create a play-free loading crane attachment change with precise alignment and lower wear.

Adjustable flow dividers keep hoisting and aligning cylinders in sync, maintaining tool orientation during lifting and lowering under varying loads.

A reconfigurable jaw combines separate crushing and cutting sections to handle concrete and metal without frequent tool changes.

A silicone flap valve replaces steel reeds to seal exhaust ports in tight spaces, cutting precision, assembly complexity, and cost.

Recovered boom-chamber fluid is stored in an accumulator and released through a jack-up assist valve to cut fuel use and speed jack-up response.

Posture-based pump and regeneration flow control keeps excavator arm cylinder speed stable and helps prevent cavitation during free-fall motion.

Bypassing the solenoid proportional valve improves excavator implement response while temperature-based switching preserves area limiting control.

A chamber-linking locking valve equalizes cylinder pressure to stop leak-induced creep and keep machine implements securely attached.

A hollow box circle with ring bearing cuts grader moldboard wear, lowers fabrication cost, and improves stiffness under load.

Joystick commands are remapped through inverse kinematics so excavator tools can be positioned and oriented without manual joint coordination.

Pressure-based blade control blocks float mode during jacking and enables it for leveling, preventing unintended excavator body lowering.

A cover plate placed between outer high-pressure and inner low-pressure pipes shields side-mounted hydraulics and eases pressure release.

Camera overlay and notification feedback help remote excavator operators match upper-body slewing angle to a target with limited visual information.

Segmented washer and housing sections let articulation joints access and replace thrust washers without full disassembly, cutting downtime.

An internal pin passageway and mounted distributor route lubricant to multiple couplings, cutting exposed hoses and maintenance.

Actual topography and target-depth reference points let the controller smooth blade load changes and improve excavation finish on uneven ground.

An electronically adjustable rod float valve varies boom suspension stiffness in real time to improve ride comfort, stability, and shock absorption.

Weldless casting joins bucket hinge plates through a torque tube, cutting stress concentrations that drive fatigue failures under extreme loads.

Controller-switched ride control valves isolate the boom circuit to boost pin-cylinder pressure for debris-tolerant implement changes without pump damage.

A diverging valve and pump flow bias keep bucket motion fast under rising excavation load while limiting unnecessary pressure loss.

Welded abutments engage wear-member recesses to stop lateral lip movement, reducing side-load wear and damage during excavation.

By filtering bucket, arm, and boom parameter combinations, this case selects safe, high-power excavation paths for autonomous digging.

Piston position sensing lets a hydraulic boom stop a hammer or drill at the target angle without taking control away from the operator.

Separate return branches with throttles and check valves balance pressure during simultaneous actuator use, keeping machine control feel consistent.

Real-time pressure feedback between the actuator and accumulator improves excavator energy recovery without slowing hydraulic response.

A reversible nut assembly applies staged tension to hammer tie rods, achieving clamp load while reducing torque stress and thread damage.

High- and low-frequency target speed splitting lets the controller favor lower-inertia members to keep the bucket on the target surface at fast excavation speeds.

Dynamic potential fields turn sensor data into actuator commands, helping work vehicles navigate obstacles and handle materials in changing sites.

Predicted downward modes pre-set accumulator pressure so hydraulic oil recovery increases while construction equipment response speed is maintained.

Mode-based hydraulic control adjusts bleed valve opening and pump pressure to keep shovel response consistent while improving efficiency.

Pressure-triggered regeneration switching lets a hydraulic cylinder shift from fast extension to higher thrust as load resistance rises.

Coordinated valve control combines hydraulic flow from multiple pumps to raise bucket cylinder speed without sacrificing concurrent excavator functions.

Lubricant fed into the gear-cover space lets the rotating outer gear self-distribute lubrication, reducing wear, seizure risk, and manual servicing.

Online learning ranks candidate bucket paths from sensor data, helping autonomous earth moving vehicles adapt to changing soil conditions.

A branched fluid tube and pressurizing path stabilize return flow, helping control valves reset properly without starving actuators.

Clamp blocks, armoring, and damping elements stabilize heavy-equipment rigging while reducing shock loads and rope wear.

Tilt cylinder pressure is routed through a slave cylinder to boost boom lifting capacity without larger lift cylinders or pumps.

A controller uses pressure-based jacking detection to block blade float during lift-up and enable stable float leveling when grounded.