Abstract: A method and a device for power transmission from a motor having a supercharging assembly, particularly a supercharged diesel-engine (7), to a gear (3) with a surface water driving propeller mechanism (4) mounted in a boat of the planing variety and preferably with a large propeller with a large pitch. A turbine coupling (10), which can be filled to a variable extent, is mounted between the supercharged motor (7) and the gear (3). The motor is designed to drive the pump portion (15) of the turbine coupling (10), and the turbine portion (17) of the turbine coupling (10) is connected to the input shaft (6) of the gear (3). The turbine coupling (10), when the boat is started, is emptied completely or partially, in such a way that it is at least partially disconnected from the gear. The motor is then accelerated to such a speed that the supercharging assembly of the motor (7) is connected.

Abstract: This invention relates in general to an electro-mechanical engine control system configured in such a manner as to provide redundant engine controls for marine engines. Microprocessor based, electronic controlled mechanical servos and an electro-mechanical transferring apparatus, facilitates the integration of the electronic control system with mechanical engine controls as they are known to the marine industry of today. This combination of electronic engine controls, integrated with clutch driven servos and mechanical transferring mechanism provides the operator of any marine craft the ease of operation of electronic controls with the security of mechanical backup operation in case of power or system failure.

Abstract: A device for the remote control of engine functions comprising two control units, each control unit having a system consisting of an output shaft coupled with a first control potentiometer, a swiveling gear wheel segment which is coupled with the output shaft and which is connected to a push-pull cable the other end of which is connected to an operating lever of the engine, and adjusting motor coupled with the output shaft, an electronic control circuit for the adjusting motor, and a control mechanism connected to each control unit by means of an electric cable which is also connected to the electronic control circuit. The control mechanism has a second control potentiometer coupled to an operating handle, whereby the electronic control circuit compares the electric signals derived from the first and said control potentiometers and energizes the adjusting motors when the difference exceeds a given threshold value.

Abstract: A shift cable assembly for a marine drive having a clutch and gear assembly (18), includes a remote control (11) for selectively positioning the clutch and gear assembly into forward, neutral and reverse, a control cable (10) connecting the remote control to a shift lever (3) pivotally mounted on a shift plate (2), a drive cable (17) connecting the shift lever on the shift plate to the clutch and gear assembly, and a spring guide assembly (100) with compression springs (101, 102, 103) biased to a loaded condition by movement of the remote control from neutral to forward and also biased to a loaded condition by movement of the remote control from neutral to reverse. The bias minimizes chatter of the clutch and gear assembly upon shifting into gear, and aids shifting out of gear and minimizes slow shifting out of gear and returns the remote control to neutral, all with minimum backlash of the cables.

Abstract: Disclosed herein is a marine propulsion device comprising a propulsion unit including a gear case rotatably supporting a propeller shaft adapted to carry a propeller, a transmission in the gear case operably connected to the propeller shaft, a support having a bore, a link including a first side portion having a first and second spaced apertures, a second side portion extending in spaced parallel relation to the first link side portion and including first and second spaced apertures in alignment with the first and second spaced aperture in the first link side portion, which second aperture in the second link side portion has a smaller diameter than the second aperture in the first link side portion, a bolt comprising a head portion having a transverse dimension and engaging the first link side portion, a threaded portion extending in the second aperture in the second link side portion and threadedly engaged with the second link side portion, and a barrel portion connecting the head portion and the threaded po

Abstract: A shift cable assembly for a marine drive includes a shift plate, a shift lever pivotally mounted on the plate, and a switch actuating arm pivotally mounted on the plate between a first neutral position and a second switch actuating position. A control cable and drive cable interconnect the shift lever and switching actuating arm with a remote control and clutch and gear assembly for the marine drive so that shifting of the remote control by a boat operator moves the cables to pivot the shift lever and switch actuating arm which in turn actuates a shift interrupter switch mounted on the plate to momentarily interrupt ignition of the drive unit to permit easier shifting into forward, neutral and reverse gears. A spring biases the arm into its neutral position and the arm includes an improved mounting for retaining the spring in its proper location on the arm.

Abstract: In a system for controlling a drive unit, particularly a boat drive unit, which comprises an internal combustion engine and a reversible gearing, with an operating member for adjusting the power and the direction of rotation, the operating member (1) feeds electric signals corresponding to the power and the direction of turning to a control device (5) which contains a microcomputer (6). Actuators (11, 12) for the power of the internal combustion engine and the switching of the reversible gearing respectively are connected to the control device (5). The control device (5) is developed in such a manner that switching of the reversible gearing is only possible when the speed of rotation of the internal combustion engine lies below a predetermined value.

Abstract: Threaded pinion drive gear apparatus (2) for a marine drive lower gear case (4) includes a pinion gear (12) thread mounted at the bottom end of a vertical drive shaft (10) for driving rotatable driven gears (14 and 16) which drive a propeller shaft (6).

Abstract: Both gas turbines of a drive system for marine vessels can be selectively connected by related first clutches with drive pinions and during so-called cruising travel, where only one drive unit or machine is operative, additionally via a gearing train with the related drive pinions. By means of speed reduction gearing the drive pinions drive two propeller shafts.

Abstract: A propulsion transmission for driving a fixed pitch propeller of a ship, the transmission including a prime mover, that is a power source, such as a gas turbine engine, or a diesel engine for example, and also having a disengageable clutch between the prime mover and the propeller and for transmitting power to the propeller for driving it in a forward direction. The transmission also includes a hydraulic torque converter of the single stage, fixed housing type and which is connected between the prime mover and the propeller for driving the propeller in the reverse direction when the disengageable clutch is inoperative.

Abstract: A planetary transmission having free-floating compound planetary gear elements in which two of the planet gears of each planetary element mesh with a pair of gears co-axial with the transmission axis. The transmission also includes selectively operable clutch and brake means for connecting either of said pair of coaxial gears to the transmission output while the other of said pair of gears is connected to a fixed structure thereby providing the transmission with a reversible output.

Abstract: When reversing a marine power plant, due consideration must be given to the fact that the inertia of the ship will continue to force the ship through the water during a moment of time after the shut down of the prime mover, with the propeller then acting as a water turbine tending to rotate the propeller shaft in the same direction as before. If the propulsion plant includes a gas turbine and a reversing gear, the reversing gear is designed in such a manner that the part thereof connected to the turbine will represent, in use, a smaller inertia than the part connected to the propeller shaft, with the propeller shaft together with the propeller attached thereto representing a considerable rotating body.