Marine propulsion – Jet drive – Direction control for fluid jet
Reexamination Certificate
2007-06-22
2011-12-06
Venne, Daniel (Department: 3617)
Marine propulsion
Jet drive
Direction control for fluid jet
Reexamination Certificate
active
08070538
ABSTRACT:
A jet pump of a personal watercraft of the present invention includes a pump casing10provided with a fairing vane part including a plurality of fairing vanes12, and the front portion of each of the fairing vanes12has two attack angles which are an attack angle α of the fairing vane and the front end attack angle β which is larger than the attack angle α. Thereby, the attack angle of the fairing vane is adapted to the water jet flow so that reduction of pump efficiency is suppressed.
REFERENCES:
patent: 5713769 (1998-02-01), Jones
patent: 7108569 (2006-09-01), Cornell
patent: 09-125904 (1997-05-01), None
Alleman Hall McCoy Russell & Tuttle LLP
Kawasaki Jukogyo Kabushiki Kaisha
Venne Daniel
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