GB680127A - Improvements in or relating to gas turbine power plants - Google Patents
Improvements in or relating to gas turbine power plantsInfo
- Publication number
- GB680127A GB680127A GB25552/49A GB2555249A GB680127A GB 680127 A GB680127 A GB 680127A GB 25552/49 A GB25552/49 A GB 25552/49A GB 2555249 A GB2555249 A GB 2555249A GB 680127 A GB680127 A GB 680127A
- Authority
- GB
- United Kingdom
- Prior art keywords
- stage
- pressure
- ducting
- valve
- plant
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C9/00—Controlling gas-turbine plants; Controlling fuel supply in air- breathing jet-propulsion plants
- F02C9/16—Control of working fluid flow
- F02C9/18—Control of working fluid flow by bleeding, bypassing or acting on variable working fluid interconnections between turbines or compressors or their stages
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
- F02C3/04—Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor
- F02C3/10—Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor with another turbine driving an output shaft but not driving the compressor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/08—Heating air supply before combustion, e.g. by exhaust gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/12—Cooling of plants
- F02C7/14—Cooling of plants of fluids in the plant, e.g. lubricant or fuel
- F02C7/141—Cooling of plants of fluids in the plant, e.g. lubricant or fuel of working fluid
- F02C7/143—Cooling of plants of fluids in the plant, e.g. lubricant or fuel of working fluid before or between the compressor stages
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/02—Surge control
- F04D27/0207—Surge control by bleeding, bypassing or recycling fluids
- F04D27/0215—Arrangements therefor, e.g. bleed or by-pass valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/02—Surge control
- F04D27/0207—Surge control by bleeding, bypassing or recycling fluids
- F04D27/023—Details or means for fluid extraction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/60—Efficient propulsion technologies, e.g. for aircraft
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Supercharger (AREA)
Abstract
680,127. Gas turbine plant; centrifugal compressors. ROLLS-ROYCE, Ltd. Oct. 4. 1950 [Oct. 4, 1949], No. 25552/49. Classes 110 (i) and 110 (iii) In a gas turbine plant comprising low pressure and high pressure compressor stages connected in series and driven by mechanically independent turbines, one or more by-pass valves are connected with the interstage ducting so as to permit the flow of working medium from or into the ducting without passing through the low pressure stage, the valves being loaded in the sense of closure by a pressure derived from the high pressure stage and in the sense of opening by the pressure within the ducting. Air is compressed by a low presure stage 10, Fig. 1, and a high pressure stage 13, driven by low and high presure turbines 19 and 16 respectively and delivered to a combustion chamber 15. The combustion gases pass through the turbines 16 and 19 and, it may be, an intermediate turbine 17 driving a power output shaft 17a. An intercooler 11 and an air preheater 14 are provided. In the event of the turbine 17 overspeeding, the fuel supply to the combustion chamber 15 is reduced or shut off by a centrifugally operated trip mechanism. The resulting back-surge of the working medium contained in the combustion chamber 15 and ducting 20 causes a pressure rise in the ducting 12. To avoid exceeding the maximum permissible delivery pressure of the stage 10, the ducting 12 is vented to atmosphere through a valve 21, which is normally kept closed by the delivery pressure of stage 13, communicated to a piston 24a, Fig. 3, by way of a conduit 25. The piston may be replaced by a flexible diaphragm. To ensure operation, the valve is preferably urged towards the open position by a spring 26. Alternatively or in addition, the effective area of the valve element 22 is greater than that of the piston or diaphragm. To permit the plant to run under low power conditions with the stage 10 by-passed, the application of pressure to the piston or diaphragm may be controlled by a valve which is operated either manually or automatically at a predetermined pressure ratio of the stage 13. The spring 26 holds the valve open when the plant is stationary, and so permits the stage 10 to be by-passed when the plant is started by rotation of the shaft 16a by an external means. A separate valve may be provided for this purpose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB25552/49A GB680127A (en) | 1949-10-04 | 1949-10-04 | Improvements in or relating to gas turbine power plants |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB25552/49A GB680127A (en) | 1949-10-04 | 1949-10-04 | Improvements in or relating to gas turbine power plants |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB680127A true GB680127A (en) | 1952-10-01 |
Family
ID=10229527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB25552/49A Expired GB680127A (en) | 1949-10-04 | 1949-10-04 | Improvements in or relating to gas turbine power plants |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB680127A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3240012A (en) * | 1960-03-16 | 1966-03-15 | Nathan C Price | Turbo-jet powerplant |
| GB2135022A (en) * | 1983-02-14 | 1984-08-22 | Stephen Walker Tebby | Improvements in or relating to impeller pumps particularly for fire fighting |
| US6122905A (en) * | 1998-02-13 | 2000-09-26 | Pratt & Whitney Canada Corp. | Compressor bleed valve |
| CN114183252A (en) * | 2021-12-13 | 2022-03-15 | 中国船舶重工集团公司第七0三研究所 | Main actuating cylinder of rotatable guide vane rotating mechanism of gas turbine |
-
1949
- 1949-10-04 GB GB25552/49A patent/GB680127A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3240012A (en) * | 1960-03-16 | 1966-03-15 | Nathan C Price | Turbo-jet powerplant |
| GB2135022A (en) * | 1983-02-14 | 1984-08-22 | Stephen Walker Tebby | Improvements in or relating to impeller pumps particularly for fire fighting |
| US6122905A (en) * | 1998-02-13 | 2000-09-26 | Pratt & Whitney Canada Corp. | Compressor bleed valve |
| CN114183252A (en) * | 2021-12-13 | 2022-03-15 | 中国船舶重工集团公司第七0三研究所 | Main actuating cylinder of rotatable guide vane rotating mechanism of gas turbine |
| CN114183252B (en) * | 2021-12-13 | 2023-09-12 | 中国船舶重工集团公司第七0三研究所 | Main actuator cylinder of rotary guide vane rotating mechanism of gas turbine |
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