Propulsion Power Plants TRIZ Cases

Sequential switching with delay compensates transient thrust differences, preventing frontward deviation during swaying mode.

Electronic sensors replace manual dipsticks to verify oil levels, reducing operator time and effort.

A worm gear mechanism enables manual steering override in outboard motors without adding components.

Positioning the supercharger below the uppermost cylinder reduces cowling height, preventing interference with the vessel body during tilting.

Separating the oil tank from the torque converter resolves poor cooling and oil degradation in sealed systems while downsizing the unit.

A trolling motor system detects stall conditions through current draw monitoring and alerts the user to prevent steering assembly damage.

A battery housing pivots onto an outboard motor shaft head using guide elements to establish a conductive electrical connection.

A transmission controller shifts outboard motor gears to mitigate mechanical stress during high-speed operation.

Bracket with quick release handle and adjustable support arm prevents shaft vibration damage while securing the motor against theft.

Segmented bearing supports reduce high-speed operational burden on outboard motor components.

Electromechanical actuator moves manual shift lever to automate speed control without hydraulic circuit modifications.

An integrated sealing structure uses a U-shaped base, hollow seal, and lip to address fitting dispersion while maintaining external appearance.

Replacing hydraulic pumps with an electromechanical rotary actuator reduces device complexity and maintenance while delivering sufficient power output.

Coaxial shafts and dual transmissions eliminate bulky clutches, reducing shift device complexity in outboard motors.

Inverting the intake manifold and throttle body layout reduces front size to prevent vessel interference without adding structural weight.

Segmented elastomer bearing maintains static stiffness while reducing dynamic rigidity to limit structure-borne noise transmission.

Curved fins on a hydrofoil shield generate lift to reach planning mode faster while deflecting underwater debris from the propeller.

A marine drive unit with a rotatable lower part positions propellers forward to prevent contact.

A boat propulsion bevel gear system uses an elastic disc spring buffer to absorb thrust force variations and mitigate mechanical impact.

Extendable frames adjust the opening size to capture exhaust from various stacks, enabling continuous system operation at berths without shutting down engines.

Controller coordinates trim tab and outboard motor movement to eliminate porpoising and roll while reducing fuel consumption.

A marine propulsion system integrates a transom bracket wall structure to shield the actuator from water and corrosion.

Curved harness sections absorb path differences between moving parts, preventing pinching and cutting while maintaining reliable electrical connectivity.

Flat leaf springs replace helical designs to reduce device complexity while maintaining vibration damping capability for ship deck comfort.

A height adjusting unit converts rotational motion into vertical displacement via a screw mechanism to position an outboard motor propeller.

Modular jet pump shield assembly reduces installation time by enabling external pre-assembly, minimizing hull leakage risks from excessive drilling.

Radial protrusion of the propeller boss front end generates dynamic pressure that prevents exhaust gas leakage from the gap between the boss and gear case.

Active frequency converter control compensates for disturbing frequencies and torque vibrations, preventing mechanical failures in ship power systems.

Nested planetary gears integrate carrier and sun shafts to shorten the axial length of the speed reduction mechanism in outboard motors.

External positioning elements align boat drive fastening means to resolve dimensional deviations and ensure reliable sealing performance.

A watercraft propulsion system estimates battery deterioration by acquiring connection terminal voltage during starter motor operation.

A boat propulsion controller manages drive units to adjust inclination angles for outboard motors.

Magnetic coupling eliminates mechanical wear and acoustic noise while maintaining rotational speed reduction in underwater propulsion systems.

Segmented steering rotates the lower hull portion independently, increasing angular range while keeping wiring stationary.

A sound enhancement assembly amplifies desired engine frequencies through a dedicated acoustic pathway.

A vertical communication tube connects the cylinder head cover to the oil pan for direct blow-by gas discharge.

Interchangeable mounts allow a single universal motor to interface with diverse watercraft, eliminating the need for multiple custom propulsion units.

A protruding section on the gear case side surface diverts water flows, reducing vortex size and exhaust gas suction noise.

A watercraft control unit dynamically adapts the force application point to maintain a desired course during docking maneuvers.

A boat thruster belt transmission pivots and retracts the propeller within a spaced fairing structure.

A marine propulsion control device prevents propeller rotation in neutral position using rotational speed detection.

Elastomer-mounted wire rope prevents uncontrolled displacement and structure-borne noise when primary dampers fail.

Programmable controllers maintain marine propulsion devices in an unaligned position to achieve transverse vessel movement.

Segmented air intake box filter prevents water ingress by gravity separation, protecting the jet engine from contamination.

Segmented partitions enable independent gas venting for each marine engine, reducing component count and piping while maintaining safety compliance.

A watercraft control system filters engine rotational speed signals to determine hull motion status and execute maximum speed limiting commands.

Segmented jack plates enable independent motor translation, resolving the trade-off between forward thrust efficiency and transverse maneuverability.

A marine propulsion skeg integrates a high-strength reinforcer to boost structural integrity without adding bulk.

A roller on a linear actuator abuts a ramp surface to reduce friction and wear during tilt trim operations.

Control circuit applies load torque to dislodge marine propulsion clutch, preventing corrosion buildup that blocks engine driveshaft connection.