Marine propulsion – Jet drive – Having means to increase fluid drive means efficiency
Patent
1979-11-21
1982-04-20
Blix, Trygve M.
Marine propulsion
Jet drive
Having means to increase fluid drive means efficiency
B63H 1102
Patent
active
043256996
ABSTRACT:
A suction device for a jet propeller assembly for a boat comprises a motor actuating a pump assembly and a suction conduit conveying water to the pump assembly. The suction inlet is located aft of the boat stern transom and has a rectangular minimum height cross-section with width to height ratio of 3 to 6. Preferably the suction inlet is located entirely rearwardly of the stern transom, the minimum height cross-section plane makes a 30.degree. to 60.degree. angle with the horizontal and the distance between the forward edge of the suction inlet and the pump inlet cross-section is not greater than twice the inlet cross-section diameter. Thus the suction device can be displaceably mounted with respect to the hull, no opening in the keel of the hull is necessary and the suction conduit can be located entirely aft of the stern transom. The propeller assembly efficiency and the wake dynamics are improved.
REFERENCES:
patent: 2149155 (1939-02-01), Anderson
patent: 3174454 (1965-03-01), Kenefick
patent: 3187708 (1965-06-01), Fox
patent: 3207116 (1965-09-01), France
patent: 3336752 (1967-08-01), Smith
Blix Trygve M.
Societa' Castoldi S.p.A.
Sotelo Jesus D.
LandOfFree
Suction device for jet propulsion units for a watercraft and jet does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Suction device for jet propulsion units for a watercraft and jet, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Suction device for jet propulsion units for a watercraft and jet will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1261825