GB932633A - Boat propulsion unit - Google Patents

Boat propulsion unit

Info

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
Application number
GB33003/61A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from AU64630/60A external-priority patent/AU246485B2/en
Application filed by Individual filed Critical Individual
Publication of GB932633A publication Critical patent/GB932633A/en
Expired legal-status Critical Current

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.
GB33003/61A 1960-09-15 1961-09-14 Boat propulsion unit Expired GB932633A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (5)

* Cited by examiner, † Cited by third party
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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