GB191512444A - Improvements in and relating to Systems of Electric Ship Propulsion. - Google Patents
Improvements in and relating to Systems of Electric Ship Propulsion.Info
- Publication number
- GB191512444A GB191512444A GB191512444DA GB191512444A GB 191512444 A GB191512444 A GB 191512444A GB 191512444D A GB191512444D A GB 191512444DA GB 191512444 A GB191512444 A GB 191512444A
- Authority
- GB
- United Kingdom
- Prior art keywords
- low
- motor
- winding
- pole number
- resistance
- 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
- B63H23/00—Transmitting power from propulsion power plant to propulsive elements
- B63H23/22—Transmitting power from propulsion power plant to propulsive elements with non-mechanical gearing
- B63H23/24—Transmitting power from propulsion power plant to propulsive elements with non-mechanical gearing electric
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
12,444. British Thomson-Houston Co., [General Electric Co.]. Aug. 30. Systems for alternating-current motors only.-In a system of electric ship propulsion, the propeller shaft carries the rotors of two induction motors the primaries of which can each be connected for a variable number of poles. Both motors connected for the low-pole number are used to operate the ship at full speed ahead, and one motor only connected for the high-pole number is used for reversing; in the latter case, the secondary losses may be increased. A polyphase alternator 14 driven by a turbine 10 supplies the primaries 21 22 of the motors A, B through pole-changing switches 23, 24. A reversing-switch 29 is also included in the leads to the motor B. The secondary of the motor A is a low-resistance short-circuited winding, and this motor is used alone with its primary connected for the lowspeed pole number for normal cruising. For reversing, the motor A is disconnected, and the motor B is used alone, with its primary 22 connected for its low-speed pole number. The torque of the motor B may be increased by employing a secondary winding which gives a low effective resistance for the high-speed pole number, and a high effective resistance for the low-speed pole number of the primary. A secondary of this type is shown in Fig. 2, consisting of a squirrel-cage winding with high-resistance bars 35, and a polar winding with low-resistance bars 37, such that the pitch is the same as the primary on the high-speed and twice that of the primary on the low-speed pole number. In a modification, two squirrel-cage windings are used. A low-resistance winding is located in slots well beneath the surface of the rotor core, so that it has a high inductance, and a high-resistance winding is located in slots near the surface of the core so that. it has a small inductance. Specifications 25,858/03, [Class 35, Dynamoelectric generators &c.], and 12,161/15 are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB191512444T | 1915-08-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB191512444A true GB191512444A (en) | 1916-08-30 |
Family
ID=32676111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB191512444D Expired GB191512444A (en) | 1915-08-30 | 1915-08-30 | Improvements in and relating to Systems of Electric Ship Propulsion. |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB191512444A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009124841A3 (en) * | 2008-04-10 | 2010-09-23 | Siemens Aktiengesellschaft | Drive device comprising two drive motors for a ship |
| CN110001910A (en) * | 2019-04-12 | 2019-07-12 | 上海丰滋新能源船舶科技有限公司 | A kind of bi-motor propeller system control device |
| WO2019197667A1 (en) * | 2018-04-12 | 2019-10-17 | Naval Group | System for supplying electrical energy to a conventionally powered submarine |
-
1915
- 1915-08-30 GB GB191512444D patent/GB191512444A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009124841A3 (en) * | 2008-04-10 | 2010-09-23 | Siemens Aktiengesellschaft | Drive device comprising two drive motors for a ship |
| AU2009235557B2 (en) * | 2008-04-10 | 2013-02-21 | Siemens Aktiengesellschaft | Drive device comprising two drive motors for a ship |
| WO2019197667A1 (en) * | 2018-04-12 | 2019-10-17 | Naval Group | System for supplying electrical energy to a conventionally powered submarine |
| FR3080092A1 (en) * | 2018-04-12 | 2019-10-18 | Naval Group | ELECTRIC POWER SUPPLY SYSTEM FOR A CONVENTIONAL PROPULSION SUBMARINE |
| CN110001910A (en) * | 2019-04-12 | 2019-07-12 | 上海丰滋新能源船舶科技有限公司 | A kind of bi-motor propeller system control device |
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