WO2021010932A1 - Method for transferring thrust from a propeller to a hull of a watercraft, propeller, stern bracket and shaft assembly - Google Patents
Method for transferring thrust from a propeller to a hull of a watercraft, propeller, stern bracket and shaft assembly Download PDFInfo
- Publication number
- WO2021010932A1 WO2021010932A1 PCT/UA2020/000042 UA2020000042W WO2021010932A1 WO 2021010932 A1 WO2021010932 A1 WO 2021010932A1 UA 2020000042 W UA2020000042 W UA 2020000042W WO 2021010932 A1 WO2021010932 A1 WO 2021010932A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- propeller
- hull
- console
- ship
- stern
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B3/00—Hulls characterised by their structure or component parts
- B63B3/14—Hull parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B3/00—Hulls characterised by their structure or component parts
- B63B3/14—Hull parts
- B63B3/42—Shaft brackets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H1/00—Propulsive elements directly acting on water
- B63H1/02—Propulsive elements directly acting on water of rotary type
- B63H1/12—Propulsive elements directly acting on water of rotary type with rotation axis substantially in propulsive direction
- B63H1/14—Propellers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H1/00—Propulsive elements directly acting on water
- B63H1/02—Propulsive elements directly acting on water of rotary type
- B63H1/12—Propulsive elements directly acting on water of rotary type with rotation axis substantially in propulsive direction
- B63H1/14—Propellers
- B63H1/20—Hubs; Blade connections
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H23/00—Transmitting power from propulsion power plant to propulsive elements
- B63H23/32—Other parts
- B63H23/34—Propeller shafts; Paddle-wheel shafts; Attachment of propellers on shafts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
- B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
Definitions
- a shafting which includes: a propeller shaft (Fig. 1/6, item 3) with a propeller attached to its end (Fig. 1/6, item 1), thrust bearings (Fig. 1/6, item 4), intermediate shafts (Fig. . 1/6, item 5),
- the basis of the invention is the task of ensuring the transfer of the thrust pressure of the propeller directly to the hull of the floating craft and removing the axial load and other loads associated with the operation of the propeller from the shafting, leaving only the transmission of power from the main engine to the propeller. This will improve the operating conditions of the shafting and make it possible to reduce its size and weight.
- the essence of the invention reflects (Fig. 2/6) and (Fig. 6/6). In the aft part of the craft, on the same axis with the hole for the exit from the propeller shaft housing, it is mounted
- aft console (Fig. 2/6, item 2), which is inseparably connected to the hull of the vessel, ship, submarine.
- the propulsion device of the floating craft On the stern console (Fig. 2/6, item 2), using plain or rolling bearings, the propulsion device of the floating craft is installed - the propeller (Fig. 2/6, item 1) and (Fig. 6/6, item 1) ), with the possibility of its reversible rotation.
- Power transmission from the main engine (Fig. 6/6, item 8) to the propeller (Fig. 6/6, nl) is carried out by a shaft line (Fig. 6/6), which ends with a propeller shaft (Fig. 2/6, item .H), which emerges from the hull of the watercraft (Fig. 2/6, item 4) into the cavity of the aft console (Fig. 2/6, item 2).
- a flywheel At the end of the propeller shaft (Fig. 2/6, item 3), there is a flywheel (Fig. 2/6, item 5) connected to the propeller hub (Fig. 2/6, item 1).
- Propellers are most often used as a propulsion device for watercraft.
- the propeller (Fig. 1/6, item 1) has a bushing with a bore, with which it is rigidly fixed to the end of the propeller shaft, and blades, the working surfaces of which create persistent pressure, which drives the vessel, ship, submarine, with the rotation of the propeller.
- a bushing with a bore, with which it is rigidly fixed to the end of the propeller shaft, and blades, the working surfaces of which create persistent pressure, which drives the vessel, ship, submarine, with the rotation of the propeller.
- the propellers have a different number of blades, a different diameter and weight.
- In shipbuilding fixed or variable pitch propellers are used. Propellers with replaceable blades are used.
- the propeller (Fig.l / 6, nl), fixed on the outer end of the propeller shaft (Fig. 1/6, p.Z), creates a thrust pressure and, through the intermediate shafts (Fig.l / 6, n.5), the thrust bearing (Fig. 1/6, item 7) and the thrust shaft (Fig. 1/6, item 8) transfer it to the body of the watercraft
- the basis of the invention is the task of ensuring the transfer of the thrust pressure of the propeller directly to the hull of the ship, ship, submarine.
- the task is solved by changing the configuration and dimensions of the propeller hub bore (Fig. 3/6), which is performed in accordance with the configuration and dimensions of the seating surface of the aft console (Fig. 7/6) and (Fig. 2/6, item 2 ).
- the propeller (Fig. 3/6) is seated on the stern console (Fig. 4/6) with the possibility of its free reversible rotation as shown in Fig. 2/6, item 1, item 2.
- the propeller (Fig. 1/6, item 1) is installed at the outer end of the propeller shaft (Fig. 1/6, item 3) in the stern of ships, ships, submarines.
- This arrangement ensures that the thrust pressure of the propeller (Fig. 1/6, nl) is transmitted through the intermediate shafts, the thrust bearing (Fig. 1/6, item 7) and the thrust shaft (Fig. 1/6, item 8) to the housing floating craft.
- the basis of the invention is the task of ensuring the transfer of the thrust pressure of the propeller (Fig. 2/6, n.l) directly to the hull (Fig. 2/6, n.4) of a ship, ship, submarine.
- the task is solved by the fact that in the aft part of the craft, on the same axis with the hole for leaving the hull (Fig. 2/6, n.2) of the propeller shaft (Fig. 2/6, n.3), the aft console is mounted (Fig. 2/6, n.2) as shown in (Fig. 4/6).
- This is a part in the form of a hollow cylinder, the configuration and outer landing dimensions of which correspond to the configuration and inner landing dimensions of the propeller hub (Fig. 3/6) as shown in Fig.
- the stern console (Fig. 4/6) and (Fig. 2/6, n.2) are inseparably connected to the hull (Fig. 4/6, nl) of the vessel, ship, submarine and has a rear annular limiter (Fig. 4/6 , item 2) and (Fig. 2/6, n.4), for transferring the thrust pressure of the propeller to the body of the watercraft during backward travel.
- Power transmission from the main engine (Fig. 1/6, item 9) to the propeller (Fig. L / 6, n.l) is carried out by the shaft line (Fig. 1/6).
- the thrust pressure of the propeller (Fig. 1/6, item 1) also takes over the shaft line and transfers it through the thrust bearing (Fig. 1/6, item 7) and the thrust shaft (Fig. 1/6, item 7). 8) onto the hull (Fig. 1/6, item 2) of the floating craft.
- the invention is based on the task of providing power transmission from the main engine (Fig. 6/6, n.8) to the propeller (Fig. 6/6, nl), which is installed on the aft console (Fig. 4/6) and (Fig. .2 / 6, n.2) as shown in (Fig. 2/6) and (Fig. 6/6).
- the task is solved by the fact that at the end of the propeller shaft (Fig. 5/6) and (Fig. 2/6, n.3), which passes through the cavity of the aft console (Fig. 2/6, item 2), a flywheel ( Fig. 5/6, nl) and (Fig. 2/6, n.5), which is attached to the propeller hub (Fig. 2/6, nl).
- appropriate oil seals and rolling or sliding bearings are installed on the shaft line.
- the propeller is rigidly attached to the downstream end of the propeller shaft, and is rotated from the main engine through the shaft line.
- the shaft line perceives the thrust pressure from the operation of the propeller and through the thrust shaft and thrust bearing, transfers it to the body of the floating craft.
- the thrust bearing which receives the thrust pressure of the propeller, is fixed within the hull of the craft.
- the shafting performs an unusual function. After all, such propellers as oars, paddle wheels and sails transmit persistent pressure directly to the hull of the floating craft.
- the proposed solution makes it possible to release the shaft line from the transfer of the thrust pressure of the propeller to the hull of the watercraft. This is achieved by transferring the installation of the propeller to the stern console with the possibility of its free reversible rotation, and the stern console is inseparably connected to the hull. In this case, the thrust pressure of the propeller will be transmitted directly to the hull behind the stern of the floating craft, and the shafting will be freed from performing an unusual function.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
UAA201908307 | 2019-07-16 | ||
UAA201908307 | 2019-07-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2021010932A1 true WO2021010932A1 (en) | 2021-01-21 |
Family
ID=74210712
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/UA2020/000042 WO2021010932A1 (en) | 2019-07-16 | 2020-04-13 | Method for transferring thrust from a propeller to a hull of a watercraft, propeller, stern bracket and shaft assembly |
Country Status (1)
Country | Link |
---|---|
WO (1) | WO2021010932A1 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2272128A (en) * | 1940-11-28 | 1942-02-03 | Osbourne Alan | Marine propeller |
US3413008A (en) * | 1965-01-26 | 1968-11-26 | Sealol | Shaft seal |
US3422905A (en) * | 1967-02-16 | 1969-01-21 | Ernest Muller | Indirect driven propeller |
US4021143A (en) * | 1975-06-17 | 1977-05-03 | Stone Manganese Marine Limited | Marine propeller arrangement |
RU2048384C1 (en) * | 1991-12-13 | 1995-11-20 | Юрий Федорович Сенькин | Method of control of variable-pitch propeller |
-
2020
- 2020-04-13 WO PCT/UA2020/000042 patent/WO2021010932A1/en active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2272128A (en) * | 1940-11-28 | 1942-02-03 | Osbourne Alan | Marine propeller |
US3413008A (en) * | 1965-01-26 | 1968-11-26 | Sealol | Shaft seal |
US3422905A (en) * | 1967-02-16 | 1969-01-21 | Ernest Muller | Indirect driven propeller |
US4021143A (en) * | 1975-06-17 | 1977-05-03 | Stone Manganese Marine Limited | Marine propeller arrangement |
RU2048384C1 (en) * | 1991-12-13 | 1995-11-20 | Юрий Федорович Сенькин | Method of control of variable-pitch propeller |
Non-Patent Citations (2)
Title |
---|
"Stop the propeller, or let it rotate?", INTERNET ARCHIVE WAYBACK MACHINE, 2 September 2016 (2016-09-02), XP055783823, Retrieved from the Internet <URL:https://web.archive.org/web/20160902171944/https://60north.ru/article/ostanavlivat-vint-ili-davat-emu-vrashatsya> * |
WARREN NIGEL: "When, why and how to minimize drag from a fixed propeller. Freewheel or locked prop?", SHAFT LOK INC., 21 April 2008 (2008-04-21), XP055783828, Retrieved from the Internet <URL:https://web.archive.org/web/20080421003442/http://www.shaftlok.com/FreewheelStoryShaftLok.htm> * |
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