Propulsion Power Plants TRIZ Cases

Positioning the motor and first transmission above the mounting mechanism brings the center of gravity closer and reduces tilt-up actuator force.

By turning the motor front to rear and splitting transmission stages, this marine propulsion layout reduces height and improves packaging.

A lower-case heat exchanger uses seawater to cool closed-loop refrigerant, preventing motor jacket corrosion while improving propulsion stability.

By placing the drive shaft ahead of the output shaft, this layout shrinks the outboard motor while keeping lower-unit pivot steering.

Existing support-structure fastener openings secure pontoon attachments without drilling through the finished deck surface.

Pivoting hydrofoil wings carry submerged propulsors beside the hull, freeing stern platform space and simplifying sealing and maintenance.

Switching between main jet drive and auxiliary lateral thrust improves boat maneuverability while keeping bow orientation stable.

A transom-mounted electric motor rotates between immersed and raised positions to avoid manual handling, hull interference, and launch hazards.

A forward-rearward rack layout increases outboard steering angle while keeping motor width compact for multi-motor hull spacing.

Counter roll displacement by coordinating propulsion device tilt angle and vertical lift to generate opposing moments during navigation.

Relocating steering near the trolling motor lower unit cuts pivot-mount moment, enables a solid shaft, and reduces bearing failure risk.

Separating the controller above the fuel pipe in the V-bank saves engine space while preserving wiring access and maintenance workability.

During sulfur adsorber regeneration, a heater bypass mixes hot and cool exhaust downstream to cut heat-resistant material cost and protect catalysts.

Real-time voltage monitoring derates electric marine motors smoothly with non-OEM batteries, preventing overcurrent and unstable propulsion.

A timed neutral state before forward-reverse switching cuts propeller and drivetrain shock while avoiding sudden watercraft speed loss.

A pivoting tiller with a tilt lock turns the outboard motor into a stable manual carry configuration for easier transport and storage.

Segmented NVH cover panels and a damped mounting assembly isolate stern drive vibration and noise while fitting through the transom opening.

Counter electromotive force from trim and steering attitude changes enables outboard motor collision detection without dedicated sensors.

A grip restraining device and yaw lock let a marine drive tiller support ambidextrous use, adjustable grip resistance, and flexible tilt.

Electronic tiller control lets marine operators choose separate shift handling or throttle-grip shifting while reliably managing motor direction and speed.

Integrated hydraulic routing through the trim joint protects steering connectors, hides external lines, and preserves full trim-up operation.