Propulsion Power Plants TRIZ Cases
- Outboard Motor Shifter Layout for Lower Gear Abrasion
Selective clutching decouples unused outboard motor gears during forward and reverse shifting, reducing abrasion and improving durability.
- Outboard Motor Tilt-Trim Hydraulics for Variable Lift Speed
A switching valve in the tilt-trim hydraulic circuit varies outboard motor lift speed by controlling fluid flow, while reducing size and weight.
- Outboard Motor Belt Drive Cooling for Low-Noise Torque Transfer
Oil-cooled belt drive and multi-outlet oil return help an outboard motor transmit high torque with lower noise and reliable lubrication when tilted.
- Multi-Motor Marine Vessel Control for Position and Orientation
Independent control of multiple vessel motors holds position and heading at once, avoiding single-motor pivoting in tight waters.
- Marine Propulsion Trim Profiles for Adaptive Speed-Based Attitude Control
Multiple selectable trim profiles let a vessel auto-adjust propulsion trim by speed, improving handling, fuel efficiency, and porpoising control.
- Marine Steering Actuator Control for Backlash and Torque Holding
Dual position sensors calibrate steering motion, compensate backlash, and limit holding current to cut power use and avoid engine collisions.
- Outboard Engine Trim Rod Receiver With Metal-Rubber Contact Damping
A metal contact member on a resin or rubber buffer cuts trim rod noise while preserving strength and wear resistance in outboard lifting.
- Propeller Drive Screw Pump Assembly for Efficient Oil Lubrication
A separate screw pump inside the propeller drive housing boosts oil circulation during sailing without adding driveshaft manufacturing complexity.