GB748020A - An improved control device responsive to temperature variation of a hot gas stream - Google Patents

An improved control device responsive to temperature variation of a hot gas stream

Info

Publication number
GB748020A
GB748020A GB3072052A GB3072052A GB748020A GB 748020 A GB748020 A GB 748020A GB 3072052 A GB3072052 A GB 3072052A GB 3072052 A GB3072052 A GB 3072052A GB 748020 A GB748020 A GB 748020A
Authority
GB
United Kingdom
Prior art keywords
pyrometer
duct
radiation
fuel
casing
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
Application number
GB3072052A
Inventor
Roy Chalice Orford
James Hodge
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Power Jets Research and Development Ltd
Original Assignee
Power Jets Research and Development Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Power Jets Research and Development Ltd filed Critical Power Jets Research and Development Ltd
Priority to GB3072052A priority Critical patent/GB748020A/en
Publication of GB748020A publication Critical patent/GB748020A/en
Expired legal-status Critical Current

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
    • F01D17/02—Arrangement of sensing elements
    • F01D17/08—Arrangement of sensing elements responsive to condition of working-fluid, e.g. pressure
    • F01D17/085—Arrangement of sensing elements responsive to condition of working-fluid, e.g. pressure to temperature
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K13/00—Thermometers specially adapted for specific purposes
    • G01K13/02—Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Combustion (AREA)
  • Coating Apparatus (AREA)

Abstract

748,020. Automatic temperature control systems. POWER JETS (RESEARCH & DEVELOPMENT), Ltd. Nov. 30,1953 [Dec. 3, 1952], No. 30720/52. Class 38 (4). [Also in Group XL (b)] Apparatus for detecting and controlling temperature of hot gases flowing through a duct comprises a radiation emitting body mounted within the duct and arranged to be heated by hot gases flowing through the duct, and a radiation pyrometer outside the duct receiving radiation from the body. As shown (Fig. 1), a tube 12 of aerofoil section so as not to impede the flow of gases projects into the duct 13. The end of the tube is closed and being heated by the gases emits radiation which is received by a radiation pyrometer 11. This pyrometer may operate an indicating or recording device or, as shown in the Figure, may energize a relay 24 through control apparatus 23. This relay then controls by means of a valve 25 the supply of fuel, to afterburners 18 situated upstream of the pyrometer to increase the supply of fuel if the temperature falls and vice versa. In a modification (Fig. 4, not shown) the nozzle opening of the jet pipe is controlled at the same time as the supply of fuel to the after-burners. In a further modification (Fig. 3, not shown) the radiating body is situated wholly in the duct and is of aerofoil section so as not to impede the gas flow. The radiation from the body passes through a quartz window to the sensitive element of the pyrometer. Pyrometer details (Fig. 2).-The sensitive element of the pyrometer may be a photo-cell or, as shown, a thermocouple 21. The couple is situated at the focus of a concave mirror 33 which is provided with a hole 34 to facilitate focusing by moving the end of the casing 31 carrying the mirror. The other end of the casing is thermally insulated from the wall of the duct by a pad 30 and adjacent the end of tube 12 is a quartz window. The pyrometer is surrounded by a casing 14 through which cooling liquid may be circulated.
GB3072052A 1952-12-03 1952-12-03 An improved control device responsive to temperature variation of a hot gas stream Expired GB748020A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3072052A GB748020A (en) 1952-12-03 1952-12-03 An improved control device responsive to temperature variation of a hot gas stream

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3072052A GB748020A (en) 1952-12-03 1952-12-03 An improved control device responsive to temperature variation of a hot gas stream

Publications (1)

Publication Number Publication Date
GB748020A true GB748020A (en) 1956-04-18

Family

ID=10312086

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3072052A Expired GB748020A (en) 1952-12-03 1952-12-03 An improved control device responsive to temperature variation of a hot gas stream

Country Status (1)

Country Link
GB (1) GB748020A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3086396A (en) * 1960-09-22 1963-04-23 Homer T Armstrong High-temperature probe assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3086396A (en) * 1960-09-22 1963-04-23 Homer T Armstrong High-temperature probe assembly

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