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Title:
COOLING WATER TAKING-IN STRUCTURE OF SMALL BOAT
Document Type and Number:
Japanese Patent JP3951081
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To facilitate maintenance of a jet propulsion machine by simplifying wiring around the jet propulsion machine.
SOLUTION: In a small boat, a jet propulsion machine for rearward injecting water sucked from the bottom by the rotation of an impeller through a propulsion duct 12 is provided on a hull, and cooling water is pumped from the jet propulsion machine and fed to an engine to cool the engine. A cooling water passage 220 for guiding cooling water to the engine is integrally formed on the propulsion duct 12 attached to the hull in the hull longitudinal direction, and a filter 230 is provided on a cooling water intake port 224 of the cooling water passage 220.


Inventors:
Chihiro Matsumoto
Makoto Nagafusa
Mitsuhisa Hirano
Application Number:
JP30017198A
Publication Date:
August 01, 2007
Filing Date:
October 21, 1998
Export Citation:
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Assignee:
YAMAHA HATSUDOKI KABUSHIKI KAISHA
International Classes:
B63H11/08; B63H21/38; B63B35/73; (IPC1-7): B63H21/38; B63B35/73; B63H11/08
Domestic Patent References:
JP10119883A
JP6286691A
JP5032296U
JP11091688A
JP5319381A
Attorney, Agent or Firm:
Toshio Tsuruwaka