GB932633A - Boat propulsion unit - Google Patents
Boat propulsion unitInfo
- Publication number
- GB932633A GB932633A GB33003/61A GB3300361A GB932633A GB 932633 A GB932633 A GB 932633A GB 33003/61 A GB33003/61 A GB 33003/61A GB 3300361 A GB3300361 A GB 3300361A GB 932633 A GB932633 A GB 932633A
- Authority
- GB
- United Kingdom
- Prior art keywords
- nozzle
- axis
- water
- propulsion
- transom
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H11/00—Marine propulsion by water jets
- B63H11/02—Marine propulsion by water jets the propulsive medium being ambient water
- B63H11/04—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps
- B63H11/08—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps of rotary type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H11/00—Marine propulsion by water jets
- B63H11/02—Marine propulsion by water jets the propulsive medium being ambient water
- B63H11/10—Marine propulsion by water jets the propulsive medium being ambient water having means for deflecting jet or influencing cross-section thereof
- B63H11/107—Direction control of propulsive fluid
- B63H11/117—Pivoted vane
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H11/00—Marine propulsion by water jets
- B63H11/02—Marine propulsion by water jets the propulsive medium being ambient water
- B63H11/04—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps
- B63H11/08—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps of rotary type
- B63H2011/081—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps of rotary type with axial flow, i.e. the axis of rotation being parallel to the flow direction
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
932,633. Marine jet propulsion drives. H. D. NELSON. Sept. 14, 1961 [Sept. 15, 1960; Dec. 1, 1960], No. 33003/61. Class 114. A marine jet propulsion unit 13, Fig. 2, fixed to the transom of a boat comprises an axial flow impeller 22 which draws water from a bifurcated scoop nozzle 35A through ducting of gradually increasing cross-section ending in an annular opening 36A (see also Fig. 10), and discharges it through a removable nozzle 51. The axis of the nozzle is inclined to the horizontal so that as it is rotated about this axis, by ring gear and pinion 61, the jet is deflected first to one side and then downwardly, Fig. 5, passing over chevroned vanes 58 which provide reverse propulsion. The arm 59 on which the vanes are mounted, pivots as the nozzle rotates, so that it does not drag in the water during forward propulsion. As an alternative, Fig. 11 (not shown), the rotational axis of the nozzle may be horizontal and axis of the nozzle orifice 52 inclined. A steering wheel, Figs. 7 and 8 (not shown), rotates the nozzle through a control rod 64 and a chain on which a marker is mounted to indicate the portion of the nozzle. A flap valve, Fig. 4 (not shown), is fitted in the base of the intake 41A to increase the intake area at low speed. A lubricating water pipe 46 feeds water to the bearing 32A, and a similar pipe may be used to supply cooling water to the engine 29. The unit may also be mounted inboard with the nozzle 51 protruding through the transom.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU64630/60A AU246485B2 (en) | 1960-09-15 | Boat propulsion unit | |
AU6709360 | 1960-12-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB932633A true GB932633A (en) | 1963-07-31 |
Family
ID=25634446
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB33003/61A Expired GB932633A (en) | 1960-09-15 | 1961-09-14 | Boat propulsion unit |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB932633A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1238356B (en) * | 1964-02-14 | 1967-04-06 | Tamco Ltd | Water jet propulsion device for watercraft |
DE1290841B (en) * | 1964-02-14 | 1969-03-13 | Tamco Ltd | Water jet propulsion device for watercraft |
CN108189994A (en) * | 2018-02-06 | 2018-06-22 | 上海丞士机器人有限公司 | A kind of water jet propulsion pump of two-sided water suction |
DE102019106717B4 (en) | 2019-03-15 | 2024-01-11 | Schottel Gmbh | Water jet propulsion for a watercraft |
-
1961
- 1961-09-14 GB GB33003/61A patent/GB932633A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1238356B (en) * | 1964-02-14 | 1967-04-06 | Tamco Ltd | Water jet propulsion device for watercraft |
DE1290841B (en) * | 1964-02-14 | 1969-03-13 | Tamco Ltd | Water jet propulsion device for watercraft |
CN108189994A (en) * | 2018-02-06 | 2018-06-22 | 上海丞士机器人有限公司 | A kind of water jet propulsion pump of two-sided water suction |
CN108189994B (en) * | 2018-02-06 | 2023-12-26 | 上海丞士机器人有限公司 | Water jet propulsion pump capable of absorbing water from two sides |
DE102019106717B4 (en) | 2019-03-15 | 2024-01-11 | Schottel Gmbh | Water jet propulsion for a watercraft |
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