GB1474275A - Water jet marine propulsion units - Google Patents
Water jet marine propulsion unitsInfo
- Publication number
- GB1474275A GB1474275A GB3325574A GB3325574A GB1474275A GB 1474275 A GB1474275 A GB 1474275A GB 3325574 A GB3325574 A GB 3325574A GB 3325574 A GB3325574 A GB 3325574A GB 1474275 A GB1474275 A GB 1474275A
- Authority
- GB
- United Kingdom
- Prior art keywords
- nozzle
- water jet
- marine propulsion
- outlets
- shaft
- 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
- B63H11/11—Direction control of propulsive fluid with bucket or clamshell-type reversing means
-
- 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
- F04D1/006—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps double suction 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
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/24—Vanes
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
1474275 Water jet propulsion HYDRO-TECH CORP 25 July 1974 33255/74 Heading B7V A marine propulsion unit comprises a doublesuction impeller 104 within a casing 10 mounted inboard or outboard of a vessel 28, and driven by a shaft 36 to draw water from two inlets 144, 146, and pass it through a double-volute passage (166), (168), Fig. 5, not shown, to an outlet 172, 178, leading from the top of the pump housing, and nozzle 186. The nozzle is rotatable about two axes perpendicular to the axis of the shaft 36 by means of a ball-and-socket connection 188, 192 and a ball bearing arrangement 204. The nozzle includes a reverse deflector 258 pivotally mounted thereon with two outlets 264, 266. In Figs. 12-14, not shown, the outlet nozzle is pivoted about horizontal axis and has a vertical pivotal internal valve (294) for steering. The outlets can be straight following section 172.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US38237473A | 1973-07-25 | 1973-07-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1474275A true GB1474275A (en) | 1977-05-18 |
Family
ID=23508680
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3325574A Expired GB1474275A (en) | 1973-07-25 | 1974-07-25 | Water jet marine propulsion units |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPS5071093A (en) |
GB (1) | GB1474275A (en) |
IT (1) | IT1016973B (en) |
SE (1) | SE399035B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0299094U (en) * | 1989-01-27 | 1990-08-07 | ||
CN108482613B (en) * | 2018-04-18 | 2023-08-29 | 苏州东珠龙旺消防器材有限公司 | Life buoy capable of remotely dispatching rescue |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4424752Y1 (en) * | 1968-11-22 | 1969-10-18 | ||
JPS4833093B1 (en) * | 1972-02-14 | 1973-10-11 |
-
1974
- 1974-07-22 SE SE7409480A patent/SE399035B/en unknown
- 1974-07-24 IT IT52248/74A patent/IT1016973B/en active
- 1974-07-25 JP JP49084714A patent/JPS5071093A/ja active Pending
- 1974-07-25 GB GB3325574A patent/GB1474275A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5071093A (en) | 1975-06-12 |
SE399035B (en) | 1978-01-30 |
SE7409480L (en) | 1975-01-27 |
IT1016973B (en) | 1977-06-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |