Propulsion Power Plants TRIZ Cases

A marine propulsion system uses a linear actuator to raise the drive unit above the water line.

Dual position sensors calibrate steering boundaries and detect drive mechanism failures to prevent propulsion unit collisions.

A propeller guard featuring an outer fluid amplifier channels water through ports to enhance steering and control.

A tow bar holder uses a receiving element with internal dimensions larger than the tow bar feet to allow tilting and positioning.

Segmented sealing surfaces allow the maintenance opening to sit inside or outside the stern, reducing leakage risk while simplifying impeller access.

A hydraulic system uses shifting piston movement to control clutch pressure application.

Electronic control of hydraulic clutch engagement enables precise propulsive force adjustment, resolving insufficient retention accuracy in existing systems.

Two independent accumulators positioned along the fuselage length provide backup power for safe return while balancing weight distribution.

Hinged jack plate assembly rotates outboard motor over submerged obstacles using a limiting strap to control rotation angle.

A boat hull suspension system absorbs vibration from the float while a conversion mechanism transforms vertical movement energy into electricity.

A ship propulsion system uses a switching device to connect an additional power supply to dual electric motors for flexible distribution.

Segmented outboard motor case parts eliminate flanges to resolve manufacturing complexity while maintaining mechanical strength.

Elastically deformable metal conductor maintains electrical contact between moving piston and cylinder in outboard motors.

Oblique spline teeth in dual rotary actuators convert axial piston motion into rotation, reducing system bulk while enabling variable speed trim and rapid tilt.

A multiple electric motor control system integrates steering, lifting, and trim mechanisms to manage propulsion on watercraft.

Relocating the electric motor between the hull and jet pump resolves shaft sealing contradictions while enabling larger motor volumes.

Dual-plane mounting cradles decouple modal frequencies to reduce lateral displacement and improve roll stiffness.

Screw connections between the crankshaft, intermediate member, and coupling prevent axial and rotational movement without spline processing costs.

Turbulence enhancers generate wakes in coolant tubes to boost heat transfer coefficients without increasing pressure drop.

Variable frequency ac busbars enable prime movers to adjust rotational speed based on electrical load, reducing fuel consumption and harmful exhaust emissions.

Axial flux motor with orthogonal drive shaft integrates into sailboat hulls, reducing structural strain and improving power transfer efficiency.

A drive controller repositions marine drive units to optimize propulsion direction relative to the vessel center line.

Dimensional preload spacers maintain output gear alignment in marine drives, preventing edge loading and premature bearing failure under operational moments.

Segmented ribs in the flow space remove moisture from intake air, preventing engine rust without reducing airflow velocity.

A shaft adjuster modifies the motor casing distance from the hull, while propeller-driven water flow cools the propulsion motor to maintain output stability.

Rotating appendages resolve the trade-off between high navigation speed and control in rough seas.

Protruding flow separators on gearcase struts stabilize water flow and collapse cavitation.

Segmented propulsion resolves hydraulic noise interference during high-speed survey operations.

A bracket positions a thruster away from the boat transom using horizontal and vertical members to optimize water flow.

Strategic mount placement balances thrust loads and isolates lateral engine motion on transoms.

A suspension structure positions a main body support below coupling points to form an imaginary triangle.

A remote control system adjusts reactive force magnitude based on lever position and operating speed.

Segmented axial flux motors boost power density while feedback controls manage system complexity.

Relocating ventilation to the lower cover eliminates upper cover complexity while preventing water ingress through an elongated horizontal air path.

A marine propulsion system uses a transverse shaft and pivot casing to transfer motive power efficiently.

Forward exhaust positioning reduces motor width and prevents interference during tight turns.

Merged exhaust pipes converge at the cylinder head to hold a single catalyst, reducing engine volume while maintaining purification.

Insulating sections interrupt case coupling while the valve maintains electrical paths, preventing electro-corrosion in ship propulsion pumps.

Rotating the support part around a shaft moves batteries between deck positions, eliminating manual lifting and improving work efficiency.

Relocating upper mounts to lateral casing surfaces enables direct transmission insertion from above, resolving assembly bottlenecks caused by narrow casings.

A forward-opening air intake port on an outboard engine cover channels airflow directly into the throttle body.

Modular muffler with expansion chamber attenuates tertiary exhaust flow, resolving idle noise issues in marine drives without increasing device complexity.

Shift actuator control moves a dog clutch through neutral range positions to resolve high reaction forces that cause shift-out failures.

Electronic control replaces bulky hydraulic jacks and mechanical gears, eliminating backlashes while maintaining precise friction sensation for pilots.

Variable thickness in the cowling support portion prevents molding shrinkage dents while maintaining structural strength at lock attachment points.

Main chamber rib divides oil pan into two sections to prevent air suction by the pump when the boat tilts or decelerates.

Segmented drive cassette with pre-aligned components resolves driveline misalignment while reducing vibration transmission to the hull.