Propulsion Power Plants TRIZ Cases

A segmented hinge assembly connects outboard motor cowl portions via a pivotable arm and retainer mechanism.

Dynamic load prediction feeds forward anticipated consumption changes to motor generators, reducing frequency variations and fuel usage in marine power systems.

A marine gear case assembly uses a check valve in the return passage to direct lubricant flow toward the transmission chamber.

Variable speed propeller thrust counters hull vibration, reducing weight and manufacturing costs compared to mechanical stabilization fins.

An integrated jet pump merges exhaust and propulsion through a single hull opening, reducing installation time and leakage risks.

Flex joints in the supporting structure accommodate injection molding variations, ensuring accurate alignment and a strong water-tight seal.

Columnar bearings with complementary channels pressure-fit the lift plate, eliminating fasteners and reducing binding risk during outboard motor adjustment.

Resilient pads and springs cushion the transom bracket assembly, preventing damage during trailering while maintaining secure support.

A stern drive cradle decouples the drive leg from the transom using rubber isolators, reducing noise and vibration transmission.

Closed-loop control adjusts toe angle to balance steering pressures, reducing hydrodynamic forces and preventing diagnostic faults.

Segmented telescoping anchor resolves complexity trade-offs by enabling easy extension and retraction for shallow water anchoring.

A throttle lever integrates a rotary thumbwheel to translate mechanical motion into precise speed signals for marine propulsion systems.

An actuator unit converts electric signals to mechanical amounts, simplifying the operator interface for hybrid outboard motor systems.

Gradually increasing the second clutch engagement force minimizes load on the power source and transmission mechanism during boat propulsion gear shifts.

Synchronizing power limits balance drive outputs to eliminate dangerous steering torques caused by fault-induced imbalances.

An intermediate adapter links the upper drive shaft housing to various lower gearcase designs, reducing the number of required upper case types.

A cylinder number changer adjusts active cylinders to manage driving force during neutral shifts.

A tugboat controller monitors pulling forces and vessel orientation to adjust propulsor thrust direction in real time.

Segmented attachment points with angled slots predetermine the breakaway force, ensuring the skeg detaches before the gear case sustains structural damage.

A bypass valve diverts exhaust gas through a secondary conduit, resolving the trade-off between reverse thrust authority and noise emissions.

Segmenting the tiller housing into a removable top cover resolves the contradiction between aesthetic enclosure and maintenance accessibility.

A flexible connector assembly couples the shift actuator to the lower gearcase mechanism in marine outboard motors.

A boat electric drive uses an overload switching device to boost thrust and acceleration beyond rated power limits.

Flexible sealing lips maintain a watertight barrier against noise and water ingress throughout the full trim range of a marine drive.

Vertical motor stacking and coaxial shaft merging reduce the lower portion volume to minimize water resistance while maintaining high output.

A vessel propulsion system uses individually controlled inclined apparatuses to direct thrust vectors for precise maneuvering.

Electronic control unit dynamically reconfigures LCD display scales to match selected ship driving programs.

A removable electric steering mechanism attaches to a swivel bracket, enabling separate maintenance of the motor and transmitter.

A marine propulsion valve seals its air intake via a movable piston, preventing engine flooding during vessel capsizing or immersion events.

A detachable clamp apparatus connects top and bottom outboard motor cowls using a pivot link and coil spring biasing mechanism.

Perpendicular mounting orientation and direct gear coupling reduce space requirements during compressor installation.

A nested cylinder trim and tilt apparatus uses communicating chambers to distribute hydraulic pressure across multiple spaces.

Movable battery carriages reposition mass to control trim and list, eliminating invasive species discharge from traditional water ballast systems.

Electric trolling motors nest inside elongated hull cavities for streamlined propulsion.

Shim placement based on helical gear axial displacement balances load between marine outboard driveshafts, reducing uneven wear from manufacturing tolerances.

Azimuthing propulsion devices clear ice and align marine vessels with drifting pack ice, reducing mooring line loads without external support.

Bidirectional fuel transfer channels enable arbitrary distribution among multiple marine vessel tanks while allowing real-time sender calibration.

A marine vessel maneuvering system uses a controller to activate unused propulsion units for forward acceleration assist.

A motorized bracket pivots a transducer to scan underwater terrain, resolving view obstruction from boat hulls and trolling motors.

A marine propulsion control system limits output of running drives when non-operating units remain submerged.

A guide bevel inside a marine engine exhaust duct accelerates gas flow to create negative pressure.

Bevel gears transmit rotation between perpendicular shafts to counter rotate propellers, removing hollow outer shaft alignment issues and lubrication shear.

Crowning straight bevel gears reduces frictional power loss and manufacturing costs while maintaining compact gear case size.

A manual jack plate uses a threaded lifting bolt to couple upper and lower lift bars for controlled outboard motor elevation.

Inverted paddle wheels provide propulsion beneath inflatable watercraft hulls, freeing deck space and enabling remote steering control.

An outboard motor intake silencer attenuates pulsation noise through a specific air-intake passage configuration.

An outboard stern drive positions marine engines inside the hull on a subfloor to enable direct floor-level maintenance access.

A cyclorotor design featuring detachable blade modules with integrated electric motors and gear actuators for independent removal.

An asymmetric cooling chamber with elevated discharge ports reduces turbulence and improves heat dissipation for overheating outboard motor control boards.

A buoyant removable rear extension attaches to a watercraft hull to increase seating capacity without requiring separate vessel designs.