Propulsion Power Plants TRIZ Cases
- Water-Surface Propulsion Device With Split Bearings for Ring-Gear Loads
Upper and lower bearings divide ring-gear reaction loads, helping keep the water-surface propulsion device compact and light.
- Water-Surface Propulsion Steering With Manual Motor-Failure Override
A switchable manual rotation member bypasses the steering reduction path when the motor fails, easing propulsor angle adjustment.
- Vapor Separator Guide Structure for Stable Fuel Pump Assembly
A guide part directs the fuel pump into its holding part during assembly, avoiding extra brackets and component cost.
- Adaptive Marine Propulsion Control for Crash Reversal
Predefined crash-reversal maps can delay response; phased ACR control adapts gear shifts, neutral hold, and engine recovery to vessel dynamics.
- Water-Surface Propulsion Steering Gears for Lower Height
Parallel-shaft steering gears lower propulsion height while improving lateral weight balance for compact water-surface hull arrangements.
- Water-Surface Propulsion Device With Integrated Refrigerant Suction
An integrated suction port moves with the turning portion to improve refrigerant delivery, cooling, lubrication, and compactness.
- Water-Surface Propulsion Steering with Resolver Angle Detection
A separate detection shaft and resolver track lower-case turning while dry-chamber placement limits gear-noise interference.
- Stowable Twin Rear Steering Hydrofoils for Shallow-Water Boating
Independently controlled rear hydrofoils raise or tilt out of the water for shallow operation, trailer transport, and reduced marine fouling.
- Boat Gunnel Swivel Mounts for Trolling Motor Storage
Swivel positioning lets trolling motors move between compact storage and operational alignment while resisting wave forces on large boats.
- Breakaway Lower Gearcase for Stern Drive Underwater Impacts
When underwater impact occurs, the lower gearcase pivots and uncouples to protect the stern drive’s upper unit.
- Outboard Motor Dual-Pump Cooling Via Mechanical Drive
A drive-shaft pump and transmission-driven pump deliver engine cooling water while eliminating added electric motor space.