B - Operations – Transporting – 63 – H
Patent
B - Operations, Transporting
63
H
B63H 11/10 (2006.01) B63H 11/08 (2006.01) B63H 11/113 (2006.01)
Patent
CA 2131008
MARINE TUNNEL PROPELLER JET PROPULSION UNIT Abstract of the Disclosure A tunnel propeller jet propulsion unit (11) for marine craft is disclosed. The unit uses substantially regularly converging water flow as seen in fluid flow through a regular nozzle or nozzle shaped conduit to greatly enhance unit efficiency and operation of the craft over a wide range of speeds and sea conditions without cavitation. The unit comprises an intake section (I); an impeller section comprising a cylindrical housing (31), a rotatable hub (34) and a plurality of radially spaced impeller blades (36); a diffuser section comprising an inwardly tapered inside surface (39), a fixed hub (38) and a plurality of radially spaced diffuser blades (40); a discharge section (D); a bearing between the hubs (not shown); and means for rotating the rotatable hub (not shown). Additional novel features include an anti-balling bypass valve (172) positioned upstream from the impeller (33) to relieve excessive water pressure on the hull if unit handling capacity is exceeded and a trim adjusting mechanism (not shown) in the discharge section (D) for adjusting the height of the unit outlet (30) with respect to the water surface. Also, a nozzle (21) having a variable outlet orifice (not shown) can be used to fine tune performance.
Finlayson & Singlehurst
Indrive Corporation
LandOfFree
Marine tunnel propeller jet propulsion unit does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Marine tunnel propeller jet propulsion unit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Marine tunnel propeller jet propulsion unit will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1645695