B - Operations – Transporting – 63 – H
Patent
B - Operations, Transporting
63
H
B63H 11/107 (2006.01) B63H 11/113 (2006.01) B63H 25/38 (2006.01) B63H 25/52 (2006.01)
Patent
CA 2312134
To enable changing of course when a jet stream from a jet pump has stopped or is low. A nozzle 30 of a jet pump 20 is constructed so as to be rotatable, and a rudder 32 that does not project downwards further than a boat bottom 11a is provided at the nozzle 30. A rudder channel 18 for guiding water flow W to the rudder 32 is provided separately from a jet pump channel 24. It is preferable for the rudder 32 to be duct-shaped and it is preferable for the rudder channel 18 to be formed of a watercourse plate with an end at the front with respect to a direction of travel opening away from the boat body when driving of the jet pump 20 is halted or when the rotational speed of driving of the jet pump is a prescribed value or less.
Abe Tomohisa
Tsuchiya Masahiko
Dennison Associates
Honda Giken Kogyo Kabushiki Kaisha
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