NO970644L - Waterjet drive unit - Google Patents

Waterjet drive unit

Info

Publication number
NO970644L
NO970644L NO970644A NO970644A NO970644L NO 970644 L NO970644 L NO 970644L NO 970644 A NO970644 A NO 970644A NO 970644 A NO970644 A NO 970644A NO 970644 L NO970644 L NO 970644L
Authority
NO
Norway
Prior art keywords
water
impeller
blades
pressure chamber
drive unit
Prior art date
Application number
NO970644A
Other languages
Norwegian (no)
Other versions
NO970644D0 (en
Inventor
Uwe Graegen
Reinhold Reuter
Stefan Kaul
Stefan Huth
Original Assignee
Schottel Werft
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
Application filed by Schottel Werft filed Critical Schottel Werft
Publication of NO970644D0 publication Critical patent/NO970644D0/en
Publication of NO970644L publication Critical patent/NO970644L/en

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
    • B63H11/10—Marine propulsion by water jets the propulsive medium being ambient water having means for deflecting jet or influencing cross-section thereof
    • B63H11/101—Marine propulsion by water jets the propulsive medium being ambient water having means for deflecting jet or influencing cross-section thereof having means for deflecting jet into a propulsive direction substantially parallel to the plane of the pump outlet opening
    • B63H11/102—Marine propulsion by water jets the propulsive medium being ambient water having means for deflecting jet or influencing cross-section thereof having means for deflecting jet into a propulsive direction substantially parallel to the plane of the pump outlet opening the inlet opening and the outlet opening of the pump being substantially coplanar
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D1/04—Helico-centrifugal pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/406—Casings; Connections of working fluid especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/445—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps

Abstract

En vannstråledrivenhet for skip som navigerer også i grunne farvann har et pumpehjul (3) sora suger vann i vertikal retning og er forsynt med blader som lar vannet strømme ut av pumpehjulet i en retning mellom vertikalt og horisontalt. Vannet som forlater strømningskanalen til pumpehjulet når en ringformet dif- fusor (5) uten blader, sora leder vannet pumpet av pumpehjulet inn i et trykkam- mer (23) etter å ha avbøyd det med 160° til 200° (fortrinnsvis 180°) i forhold til oppsugningsretningen. Det avbøyde vannet har bare lav strømningsenergi og forlater til slutt trykkammeret gjennom dyser (8) hvor avbøyningsretningen er fast eller variabel.A water jet drive for ships that also navigate in shallow waters has a impeller (3) which draws water in the vertical direction and is provided with blades that allow the water to flow out of the impeller in a direction between vertical and horizontal. The water leaving the flow channel of the impeller reaches an annular diffuser (5) without blades, which leads the water pumped by the impeller into a pressure chamber (23) after deflecting it by 160 ° to 200 ° (preferably 180 °). relative to the suction direction. The deflected water has only low flow energy and finally leaves the pressure chamber through nozzles (8) where the deflection direction is fixed or variable.

NO970644A 1994-08-13 1997-02-12 Waterjet drive unit NO970644L (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19944428748 DE4428748A1 (en) 1993-02-20 1994-08-13 Hydro=jet propulsion system for boat
PCT/EP1995/003209 WO1996005098A1 (en) 1994-08-13 1995-08-13 Hydrojet

Publications (2)

Publication Number Publication Date
NO970644D0 NO970644D0 (en) 1997-02-12
NO970644L true NO970644L (en) 1997-02-12

Family

ID=6525635

Family Applications (1)

Application Number Title Priority Date Filing Date
NO970644A NO970644L (en) 1994-08-13 1997-02-12 Waterjet drive unit

Country Status (7)

Country Link
EP (1) EP0775066A1 (en)
JP (1) JPH10504779A (en)
CN (1) CN1157600A (en)
DE (1) DE4428748A1 (en)
FI (1) FI970597A (en)
NO (1) NO970644L (en)
WO (1) WO1996005098A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19905141B4 (en) * 1998-02-10 2004-08-12 Kawasaki Jukogyo K.K., Kobe Vertical water jet propulsion device
NL1013192C2 (en) * 1999-10-01 2001-04-03 Holland Roerpropeller B V Water jet propulsion system.
ES2628353T3 (en) * 2007-05-21 2017-08-02 Weir Minerals Australia Ltd Centrifugal pump impeller with auxiliary blades on the front cover, adjacent to the impeller inlet opening
RU2010127359A (en) * 2007-12-05 2012-01-10 Шоттель Гмбх (De) MARINE POWER PLANT WITH WATER JET ENGINE
EP2194231A1 (en) * 2008-12-05 2010-06-09 Siemens Aktiengesellschaft Ring diffuser for an axial turbo engine
CN103085957A (en) * 2009-09-11 2013-05-08 赵明 Horizontal double-arc gear pump for high-speed vessel
CN106984211B (en) * 2017-06-08 2022-10-21 湖北华凯能源股份有限公司 Submersible sludge stirrer
ES1286659Y (en) * 2021-10-25 2022-05-09 Sedeno Jordi Monfort drive device

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB140985A (en) * 1919-11-04 1920-04-08 James Herbert Wainwright Gill Improvements in or relating to the propulsion and manoeuvring of vessels
GB210930A (en) * 1922-12-14 1924-02-14 James Herbert Wainwright Gill Improvements in or relating to the manoeuvring or steering of ships and other vessels
DE1150003B (en) * 1959-03-26 1963-06-06 Dowty Technical Dev Ltd Outboard propulsion boat
DE7009393U (en) * 1969-03-17 1970-09-03 Whiteman James Leighton Dennet DRIVE DEVICE FOR BOATS.
US3943876A (en) * 1973-12-06 1976-03-16 Kiekhaefer Aeromarine Motors, Inc. Water jet boat drive
DE3334254A1 (en) * 1983-09-22 1985-04-18 Kresimir Dipl.-Ing. 2850 Bremerhaven Kusan Bow thruster for steering, braking and propelling a ship
DE3735699C2 (en) * 1987-10-22 1999-08-26 Schottel Werft Water jet propulsion for water vehicles
DE4021340A1 (en) * 1990-07-04 1992-01-09 Schottel Werft WATER JET DRIVE FOR SHIPS INTENDED FOR USE IN SHALLOW WATERS
DE4305267A1 (en) * 1993-02-20 1994-08-25 Schottel Werft Water jet propulsion

Also Published As

Publication number Publication date
EP0775066A1 (en) 1997-05-28
JPH10504779A (en) 1998-05-12
FI970597A0 (en) 1997-02-12
NO970644D0 (en) 1997-02-12
DE4428748A1 (en) 1996-02-15
CN1157600A (en) 1997-08-20
WO1996005098A1 (en) 1996-02-22
FI970597A (en) 1997-04-09

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