Propulsion Power Plants TRIZ Cases

Separating air inlets from the upper cover eliminates molding shrinkage cavities and improves attachment efficiency.

A shift unit positions an actuator near a dog clutch to transmit linear motion along the drive shaft axis.

A controller actuates a band brake on a planetary gearset to adjust output shaft speed in marine propulsion systems.

Steering system sets optimized toe angle between outboard motors during straight travel, reducing external water forces and lowering power consumption.

A boat propulsion apparatus integrates a rotatable throttle grip with a locking mechanism to secure the main body.

A tilt movement interruption device cuts off the circuit to stop outboard motor rotation when obstacles are detected.

Jet drive propulsion maintains bait position against drift, eliminating repeated recasting and reducing line entanglement.

Segmenting the splash guard into a separate component resolves weight and complexity trade-offs while enabling easy replacement based on usage conditions.

Control unit compares operation lever position with actual gear shift data to detect transmission failures and prevent malfunctions during navigation.

An engine control system uses a safety key to lock human-machine interface units for secure maintenance access.

Segmented restricting members constrain port and starboard deflection while resilient mounts isolate vibration.

Dual-circuit cooling jackets maintain exhaust temperatures above dew point to prevent condensation damage during idling.

Lockable hinges convert the watercraft between compact storage and full deployment while keeping all components attached to prevent part loss.

A marine engine air intake plenum uses Helmholtz-style attenuator devices to convey intake air while reducing sound pressure levels.

A spacer case design with lateral openings for fastener insertion.

A horizontal crankshaft outboard drive connects parallel shafts via flexible couplings for direct power transmission.

A gear case assembly employs a perpendicular gap to translate an electric transmission actuator, resolving complex marine engine midsection length adaptability.

Automatic electric disengaging clutch system interrupts power transmission during gear shifts to protect mechanical components.

Ribbed duct regions route rainwater laterally to prevent engine corrosion while maintaining airflow pressure drop below 3.5 inches.

A vessel propulsion system relocates drive machinery into the hull interior to free stern space for fixed external units.

Transmission housing integrates a modular transmission system between driveshaft and gearcase components.

A marine propulsion control system routes signals through a communication bus between controllers to operate multiple actuators.

Segmented deflector plate and cutting member mitigate aquatic vegetation damage while maintaining universal compatibility across various trolling motor models.

A Hall sensor detects magnet polarity changes on a shift cable to trigger an ignition coil power interrupt during marine gear transitions.

A ship propulsion unit design segments the engine into a fixed upper case and a rotating lower case to enable independent propeller steering.

An active vacuum buffer device with a spring-driven variable volume enclosure stabilizes control mechanism pressure.

A dual separator system stores hydrogen in a reservoir to bypass sluggish reformer dynamics during rapid load changes.

A staggered transom configuration mounts multiple outboard engines on a single hull.

Automated emergency stop procedure adjusts propeller orientation and rotation speed for ships with azimuthing propulsion units.