Mechanical Machines/Dredgers TRIZ Cases

Valve control shifts two-pump oil flow among boom, arm, and bucket cylinders to avoid pressure shortage during heavy excavation.

Onboard sensors track external and tool-mounted indicators to monitor construction work positions accurately without TS or GNSS.

Dynamic bleed valve control adjusts bypass flow to suppress hydraulic pressure pulsation in excavators while limiting wasted hydraulic energy.

Dynamic thresholds from left-right motor speeds and pressures enable smooth straight-travel deceleration without false slowdown in turns.

A hydraulic link between grapple and bucket cylinders keeps one element moving after the other stops, reducing operator intervention and cycle time.

A hollow motor and separated torque path keep hoses centered, reduce rotor-stator loads, and allow compact hydraulic tool rotation.

Predictive control adjusts tilt bucket attitude during swing motion to keep distance from the design surface and prevent over-excavation.

A non-coaxial rotary layout separates urea flow and electrical cables in a compact actuator, reducing leakage risk and saving space.

A multi-axis plasma torch replaces chain trenching to cut geologic material faster, with precise angle control and spoil containment.

Visual perception sensors detect windrows and guide autonomous clearing where GPS is unreliable, reducing sensor cost and operator exposure.

Processing circuitry predicts and corrects hydraulic cylinder acceleration to suppress shovel vibration, improving work quality and operator comfort.

Georeferenced GNSS and mobile signal evaluation helps construction machines predict weak coverage, reduce downtime, and plan later machine passes.

Operator-selectable valve order shifts pump priority for boom and stick motions, improving excavator operability, efficiency, and fuel use.

Geo-referenced GNSS and mobile radio quality mapping helps construction machines avoid positioning errors, downtime, and poor handoffs.

Load-triggered slot switching lets a work machine keep digging walls automatically while reducing excessive force on the work implement.

Separated fluid supply channels and opposed parallel shafts balance load sharing in a construction machine drive and stabilize rotational force output.

Predictive bucket control anticipates gradient changes to prevent digging below the design surface and keep excavation on target.

Predicting an excavator's next swing or travel motion enables sound or vibration alerts so nearby workers can react without slowing work.

Model predictive control helps working equipment follow complex design surfaces, preventing over-digging across varied site conditions.

A sweep sensor reads a housing pattern to track actuator motion and confirm hidden bracket pin locking in harsh machine tool holders.

A patterned actuator housing and sweep sensor continuously verify hidden bracket pin engagement for safer, more reliable tool locking.

Dynamic clearance control stops or decelerates a work machine around obstacles while reducing unnecessary stoppages and lost work time.

An inner pipe and linked grease chambers cut grease volume while delivering even lubrication to both bucket pin bushes in a construction machine.

Sensor-based teaching point updates let work machines adapt attachment position and orientation without reteaching or repeated operator input.

A continuous-flow hydraulic circuit and configurable valve bank let one telescoping boom power mixed linear and rotary implements from one machine.

A compressed non-metallic seal and cover plate protect grader circle gear teeth from dirt, rocks, and grease while staying replaceable.

Weighted boom-cylinder velocity limits smooth the shift between leveling and compaction work, reducing shock and operator fatigue.

A weldless cast hinge and torque tube reduce fatigue cracks at excavator bucket joints by smoothing load paths and improving durability.

Controller correction based on pre-drive cylinder pressure keeps the boom, arm, and bucket moving accurately along the target surface.

Pre-positioning signals, float hydraulics, and coupling feedback help align loader mounting points for consistent one-trip attachment.

Adaptive movement-range control varies stop clearance by obstacle position, reducing unnecessary excavator stops while avoiding contact.

Adaptive swing speed control avoids bucket collisions with the loading target during automatic loading when lift and swing motions fall out of sync.

By expanding the gas chamber and blocking backflow, this case transfers more gas from a fixed-volume tank into a machine gas spring.

A movable abutting lever prevents connecting pin withdrawal in construction machines while improving operator access around cab obstructions.

Variable bypass flow control and spool stroke limiting cut hydraulic pressure loss during simultaneous actuator operation, reducing fuel use.

A hydraulic lever tool applies tangential torque to remove stuck gudgeon nuts safely without cutting, reducing maintenance time and risk.

A dirt-channel quick coupler automates tool locking and hydraulic connection on mobile machines while reducing contamination, leakage, and manual handling.

Switching valves reroute second-pump flow to the boom rod-side chamber for vehicle body lifting, avoiding a dedicated pressure source.

Upstream and downstream spool valves balance hydraulic oil across excavator actuators during composite operations by limiting excess arm-cylinder flow.

Separate crushing and cutting jaws with a shared combination blade handle reinforced concrete demolition without frequent blade changes.

A branched discharge passage and added fluid supply stabilize first-pump suction when variable second-device flow would otherwise cause negative pressure.

A controller tracks lift arm position and adjusts tractive effort to manage horizontal loads, prevent overload, and improve work vehicle efficiency.

Load-triggered reference position control reduces blade overload during automatic digging while preserving topography shape and finish quality.

A central grease passage and inner supply pipe feed both bucket pin bushes evenly, reducing grease chamber volume and lubrication imbalance.

Variable bypass flow control and spool stroke limiting cut hydraulic pressure loss during simultaneous actuator operation, improving fuel use and work speed.

Condition-based greasing starts earlier after long engine stops, keeping shovel pin joints lubricated without unnecessary grease use.

Augmented overlays align telematics and camera feeds to show machine orientation and depth, improving remote operation precision and safety.

Coordinated valve timing keeps turning motor speed from rising unexpectedly during deceleration while maintaining work actuator speed.

A split bucket structure lets worn load-carrying sections be swapped quickly, cutting downtime and enabling bucket volume changes.

By probing the ground before travel, the shovel avoids soft soil and shares stable route information to reduce delays on construction sites.