patentstorm.us

Boat propulsion system and control unit

Patent Number: 8109801
Publication Date: 2012-02-07
Inventors: Nakamura, Daisuke; Suzuki, Takayoshi

A boat propulsion system that easily and finely adjusts the rotational speed of a propeller includes an outboard motor including a power source, a propeller, a control lever to which an accelerator opening is input, an accelerator opening detection section arranged to output an operating amount of the control lever, a sensitivity switching section, and a control device. A degree of the accelerator opening relative to the operating amount of the control lever is switched by the sensitivity ...

Outboard motor

Patent Number: 8109800
Publication Date: 2012-02-07
Inventors: Yamauchi, Hirotoshi; Okabe, Yoshihiko

A transmission device includes hydraulic type transmission mechanisms arranged to change the speed or the direction of rotation of an engine, and hydraulic pressure control valves arranged to control hydraulic pressure supplied to the hydraulic type transmission mechanisms. The hydraulic pressure control valves are disposed on one side or the other side in the watercraft width direction. The transmission device provides an outboard motor capable of securing cooling characteristics of a ...

Marine electric generator flushing system

Patent Number: 8105123
Publication Date: 2012-01-31
Inventor: Hamlin, Edward W.

A marine electric generator flushing system for a boat has a liquid container attached in the generator raw cooling water intake line and mounted in a boat hull positioned along the water line of the boat. The liquid container has a fresh water inlet that allows a fresh water hose to be connected thereto and which automatically blocks the raw water line anytime fresh water is entering the liquid container so that fresh water is drawn through the generator cooling ...

Propulsion device for a marine motor

Patent Number: 8105122
Publication Date: 2012-01-31
Inventor: Inaba, Takeshi

In a propulsion device for a marine motor, a shift rod (19) extends vertically in a gear case (1a) provided in a lower part of the marine motor, and is provided with a lower end (19a) cooperating with a mechanism for mechanically actuating a clutch device (18) for shifting a power transmission mechanism of the propulsion device. The lower end of the shift rod is additionally provided with a valve (37, 38) that controls feeding of hydraulic ...

Paddle blade that allows use of a handle and/or paddle for any way paddling

Patent Number: 8100733
Publication Date: 2012-01-24
Inventors: Ross, Gary; Bragg, Bill; Munoz, Miguel

The invention is the addition to traditional shafts used for stand-up paddling that normally have a standard paddle at one end of the shaft and a handle at the other end of the shaft. The invention incorporates a second paddle attached to the shaft at the location of the handle. The paddle may have an interior opening surrounding a portion of the handle to enable a user to grasp the handle with a user's hand. Alternatively, the body of the paddle can be oriented at an angle relative to the ...

Boat propulsion unit

Patent Number: 8100732
Publication Date: 2012-01-24
Inventors: Suzuki, Masami; Fukuoka, Yoshihito; Nakamura, Daisuke; Okabe, Yoshihiko

A boat propulsion unit minimizes a shock upon switching of an engagement state of a clutch mechanism. The boat propulsion unit includes an upper clutch mechanism that is arranged on an axis of a lower drive shaft and that can be switched between an engagement state (first engagement state) in which driving force of an engine is transmitted to a downstream side, and a half clutch state in which the driving force of the engine is reduced and then is transmitted; and an advance-reverse drive ...

Engine control system for jet-propulsion boat, jet-propulsion boat incorporating same, and method of using same

Patent Number: 8096844
Publication Date: 2012-01-17
Inventors: Higashiyama, Junji; Tsuyuguchi, Makoto; Maeda, Hiroshi

An engine control system, for controlling an engine of a jet-propulsion boat, includes a cavitation-control-mode determination unit, which starts a cavitation-control mode when an engine speed not faster than 3200 rpm is maintained for a predetermined time period. During a normal sailing operation, ignition timing is set by a first ignition-timing setting unit. Upon detection of a cavitation-control-mode by the cavitation-control-mode determination unit, an engine speed is raised up to a ...