GB734091A - Improvements in or relating to protective devices for fluid intake ducts - Google Patents
Improvements in or relating to protective devices for fluid intake ductsInfo
- Publication number
- GB734091A GB734091A GB1693352A GB1693352A GB734091A GB 734091 A GB734091 A GB 734091A GB 1693352 A GB1693352 A GB 1693352A GB 1693352 A GB1693352 A GB 1693352A GB 734091 A GB734091 A GB 734091A
- Authority
- GB
- United Kingdom
- Prior art keywords
- grid
- airflow
- link
- air intake
- operative
- 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
- 239000012530 fluid Substances 0.000 title 1
- 230000001681 protective effect Effects 0.000 title 1
Classifications
-
- 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
- F02C7/04—Air intakes for gas-turbine plants or jet-propulsion plants
- F02C7/05—Air intakes for gas-turbine plants or jet-propulsion plants having provisions for obviating the penetration of damaging objects or particles
- F02C7/055—Air intakes for gas-turbine plants or jet-propulsion plants having provisions for obviating the penetration of damaging objects or particles with intake grids, screens or guards
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D33/00—Arrangements in aircraft of power plant parts or auxiliaries not otherwise provided for
- B64D33/02—Arrangements in aircraft of power plant parts or auxiliaries not otherwise provided for of combustion air intakes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D33/00—Arrangements in aircraft of power plant parts or auxiliaries not otherwise provided for
- B64D33/02—Arrangements in aircraft of power plant parts or auxiliaries not otherwise provided for of combustion air intakes
- B64D2033/022—Arrangements in aircraft of power plant parts or auxiliaries not otherwise provided for of combustion air intakes comprising bird or foreign object protections
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
734,091. Gas turbine plant. ROLLS-ROYCE, Ltd. June 29,1953 [July 4, 1952], No. 16933/52. Class 110 (3). In a debris guard for the air intake duct of a gas turbine engine, a grid portion is pivotally supported adjacent an edge thereof to move. between its operative and inoperative positions so that in each position of the grid portion, the line of action of the load on the grid portion due to the airflow in the air intake duct passes through or close to the corresponding instantaneous centre of rotation of the grid portion at least over a major part of the travel of the grid portion between its operative and inoperative positions. In Fig. 1, the outer end of the grid portion 10 is mounted on a roller 13 which is moved in guides 14 parallel to the direction of the airflow 15 by means of a ram 11a in a cylinder 11. The grid is connected by a link 17 to a fixed part of the structure at 19. The centre of pressure of the grid is indicated at 16. In this embodiment, the line of action of the load due to the airflow passes through the instantaneous centre of rotation at each position. In Fig. 2, the grid is connected to the fixed structure by a link 20 connected at 22 to an offset portion of the grid. In Fig. 3, the offset portion 24 of the grid carries a roller 23 which is constrained to move in the direction 25a. The dimensions may be such that the load due to the airflow operates to assist movement of the grid towards its operative position and towards its retracted position, the line of action of the load due to the airflow passing through the instantaneous centre of rotation at an intermediate position. The air intake shown in Fig. 4 is annular and the grid portions 34 comprise portions of the annulus and together form a frusto-conical surface. The grid portions are constructed in accordance with the arrangement shown in Fig. 2 and a ram 48, lug 53 and link 52 are fitted at each end of the arcuate outer edge of each grid portion. The grid comprises aerofoil slats 39 secured to a frame. Specification 668,638 is referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1693352A GB734091A (en) | 1952-07-04 | 1952-07-04 | Improvements in or relating to protective devices for fluid intake ducts |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1693352A GB734091A (en) | 1952-07-04 | 1952-07-04 | Improvements in or relating to protective devices for fluid intake ducts |
Publications (1)
Publication Number | Publication Date |
---|---|
GB734091A true GB734091A (en) | 1955-07-27 |
Family
ID=10086283
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1693352A Expired GB734091A (en) | 1952-07-04 | 1952-07-04 | Improvements in or relating to protective devices for fluid intake ducts |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB734091A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10513980B2 (en) | 2017-01-24 | 2019-12-24 | Rolls-Royce Plc | Gas turbine engine arrangement |
-
1952
- 1952-07-04 GB GB1693352A patent/GB734091A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10513980B2 (en) | 2017-01-24 | 2019-12-24 | Rolls-Royce Plc | Gas turbine engine arrangement |
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