GB836580A - Improvements relating to air or gas turbines - Google Patents
Improvements relating to air or gas turbinesInfo
- Publication number
- GB836580A GB836580A GB2355155A GB2355155A GB836580A GB 836580 A GB836580 A GB 836580A GB 2355155 A GB2355155 A GB 2355155A GB 2355155 A GB2355155 A GB 2355155A GB 836580 A GB836580 A GB 836580A
- Authority
- GB
- United Kingdom
- Prior art keywords
- nozzles
- varying
- air
- overspeeding
- aug
- 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
- F01D17/00—Regulating or controlling by varying flow
- F01D17/20—Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted
- F01D17/205—Centrifugal governers directly linked to valves
-
- 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
- F02C7/26—Starting; Ignition
- F02C7/268—Starting drives for the rotor, acting directly on the rotor of the gas turbine to be started
- F02C7/275—Mechanical drives
- F02C7/277—Mechanical drives the starter being a separate turbine
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2270/00—Control
- F05D2270/01—Purpose of the control system
- F05D2270/02—Purpose of the control system to control rotational speed (n)
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Turbines (AREA)
Abstract
836,580. Elastic-fluid turbines. PLESSEY CO. Ltd. Aug. 15, 1956 [Aug. 16, 1955], No. 23551/55. Class 110 (3). [Also in Group XXIX] In a starter turbine for operation by air or gas and adapted to develop maximum power at a relatively low fraction of the uncoupling speed, the mass flow is reduced progressively over a major portion of the starting cycle by means of a speed-responsive device. An engine starter turbine a is prevented from overspeeding by the use of pivotally mounted nozzle blades e which are turned towards the tangential direction by a toothed control ring f which is turned, through a pinion g and a lever h, by a piston i. The supply of motive fluid, such as compressed air, from the turbine inlet d to the piston i is controlled by a valve j operated by a centrifugal governor k. Alternatively, overspeeding may be prevented by varying the number of nozzles in use or varying the degree of masking of a fixed number of nozzles, or by varying a restriction upstream of the nozzles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2355155A GB836580A (en) | 1955-08-16 | 1955-08-16 | Improvements relating to air or gas turbines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2355155A GB836580A (en) | 1955-08-16 | 1955-08-16 | Improvements relating to air or gas turbines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB836580A true GB836580A (en) | 1960-06-09 |
Family
ID=10197490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2355155A Expired GB836580A (en) | 1955-08-16 | 1955-08-16 | Improvements relating to air or gas turbines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB836580A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3282095A1 (en) * | 2016-08-11 | 2018-02-14 | Rolls-Royce Deutschland Ltd & Co KG | Apparatus of a turbo machine for actuating an adjustment device and turbo machine with such an apparatus |
-
1955
- 1955-08-16 GB GB2355155A patent/GB836580A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3282095A1 (en) * | 2016-08-11 | 2018-02-14 | Rolls-Royce Deutschland Ltd & Co KG | Apparatus of a turbo machine for actuating an adjustment device and turbo machine with such an apparatus |
| US10428678B2 (en) | 2016-08-11 | 2019-10-01 | Rolls-Royce Deutschland Ltd & Co Kg | Device of a turbomachine for actuating a setting device and turbomachine with such a device |
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