B - Operations – Transporting – 63 – H
Patent
B - Operations, Transporting
63
H
B63H 25/46 (2006.01) B63B 35/73 (2006.01) B63H 11/08 (2006.01) B63H 21/14 (2006.01) F02B 61/04 (2006.01)
Patent
CA 2403592
A control unit is provided for closing the throttle when the engine has been rotated for more than a prescribed time period at more than a prescribed number of revolutions, and the throttle has been opened for more than a prescribed time period at more than a prescribed opening. The control unit increases the number of engine revolutions to a predetermined number of revolutions irrespective of the throttle and maintains the same for a predetermined retention time when the steering handle is turned to the left or the right by more than a prescribed angle. The time to start controlling the number of engine revolutions may be delayed by providing a delay time for delaying the time to start controlling the engine revolutions. The number of engine revolutions may be controlled after the hull is underwater. As a consequence, the amount of sideslip of the jet propulsion boat can be improved. In addition, since the control unit for increasing the number of engine revolutions to a predetermined number of revolutions irrespective of the throttle and maintaining the same for a predetermined retention time is provided, the quantity of jet water stream is secured. As a result, the steering of the jet propulsion boat is improved.
Hirakata Yoshiaki
Kochi Takao
Shogase Hajime
Uraki Mamoru
Dennison Associates
Honda Giken Kogyo Kabushiki Kaisha
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