GB218839A - Improvements relating to steam turbines - Google Patents
Improvements relating to steam turbinesInfo
- Publication number
- GB218839A GB218839A GB1767323A GB1767323A GB218839A GB 218839 A GB218839 A GB 218839A GB 1767323 A GB1767323 A GB 1767323A GB 1767323 A GB1767323 A GB 1767323A GB 218839 A GB218839 A GB 218839A
- Authority
- GB
- United Kingdom
- Prior art keywords
- stages
- per
- absolute velocity
- leaves
- stationary nozzles
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D1/00—Non-positive-displacement machines or engines, e.g. steam turbines
- F01D1/02—Non-positive-displacement machines or engines, e.g. steam turbines with stationary working-fluid guiding means and bladed or like rotor, e.g. multi-bladed impulse steam turbines
- F01D1/04—Non-positive-displacement machines or engines, e.g. steam turbines with stationary working-fluid guiding means and bladed or like rotor, e.g. multi-bladed impulse steam turbines traversed by the working-fluid substantially axially
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
218,839. Baumann, K., and Metropolitan-Vickers Electrical Co., Ltd. July 7,1923. Axial-flow type.-A steam turbine is so constructed that the steam leaves the stationary nozzles of the stages wherein at least 20 per cent of the total output of the turbine is developed with an absolute velocity of less than 900 ft, per second, while in the remaining stage or stages it leaves the stationary nozzles with an absolute velocity greater than 1800 or 1600 ft. per second, according to whether the latter stages are high or low pressure stages. In practice the change in the absolute velocity takes place comparatively rapidly at a particular part of the turbine. The first high-pressure stage 1 may be designed with a small heat drop and without regard to the efficiency range defined above, but in each of the remaining high-pressure stages 2 - - 14 the steam leaves the stationary nozzles with an absolute velocity of less than 900 ft. per second, while in each of the low-pressure stages 15 - - 22 it leaves the stationary nozzles with an absolute velocity greater than 1600 ft. per second.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1767323A GB218839A (en) | 1923-07-07 | 1923-07-07 | Improvements relating to steam turbines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1767323A GB218839A (en) | 1923-07-07 | 1923-07-07 | Improvements relating to steam turbines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB218839A true GB218839A (en) | 1924-07-17 |
Family
ID=10099191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1767323A Expired GB218839A (en) | 1923-07-07 | 1923-07-07 | Improvements relating to steam turbines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB218839A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2440344A (en) * | 2006-07-26 | 2008-01-30 | Christopher Freeman | Impulse turbine design |
-
1923
- 1923-07-07 GB GB1767323A patent/GB218839A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2440344A (en) * | 2006-07-26 | 2008-01-30 | Christopher Freeman | Impulse turbine design |
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