GB794453A - Improvements in thrust-reversal devices for jet engines - Google Patents

Improvements in thrust-reversal devices for jet engines

Info

Publication number
GB794453A
GB794453A GB3673655A GB3673655A GB794453A GB 794453 A GB794453 A GB 794453A GB 3673655 A GB3673655 A GB 3673655A GB 3673655 A GB3673655 A GB 3673655A GB 794453 A GB794453 A GB 794453A
Authority
GB
United Kingdom
Prior art keywords
operative
jet
thrust reversal
rings
nozzle
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
GB3673655A
Inventor
Horace Sinclair Rainbow
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.)
Armstrong Siddeley Motors Ltd
Original Assignee
Armstrong Siddeley Motors 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
Priority to BE553599D priority Critical patent/BE553599A/xx
Application filed by Armstrong Siddeley Motors Ltd filed Critical Armstrong Siddeley Motors Ltd
Priority to GB3673655A priority patent/GB794453A/en
Priority to FR1165966D priority patent/FR1165966A/en
Publication of GB794453A publication Critical patent/GB794453A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02K—JET-PROPULSION PLANTS
    • F02K1/00—Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
    • F02K1/54—Nozzles having means for reversing jet thrust
    • F02K1/56—Reversing jet main flow
    • F02K1/62—Reversing jet main flow by blocking the rearward discharge by means of flaps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02K—JET-PROPULSION PLANTS
    • F02K1/00—Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
    • F02K1/54—Nozzles having means for reversing jet thrust
    • F02K1/56—Reversing jet main flow

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Nozzles (AREA)

Abstract

794,453. Jet propulsion nozzles. ARMSTRONG SIDDELEY MOTORS, Ltd. Nov. 19, 1956 [Dec. 22, 1955], No. 36736/55. Class 110 (3). [Also in Group XXXIII] A jet engine thrust reversal device comprises a number of thrust reversal members having an inoperative position outside the jet pipe but movable to an operative position to form a series of aerofoil section rings shaped so as to reverse partially the direction of flow of most of the jet, the usual nozzle being inoperative while the thrust reversal device is operative, the device being such that when operative, each annular thrust reversal nozzle defined by two adjacent rings accelerates the gas flow to the issuing speed of the jet when the usual nozzle is operative, and the total effective outlet area of the thrust reversal device when operative is equal to that of the usual nozzle when operative. Fig. 3 shows the invention applied to the thrust reversal device of Specification 780,669, the rings 14a being shown in axial cross-section in the operative position. The total effective outlet area is the sum of the annular areas shown by lines 15 and the circular area shown by line 16. The gas flow to the device shown by line 17 is subsonic, the. issuing flow being supersonic. In Fig. 5, the annular rings shown in cross-section are slidable from an annular space between the jet pipe 30 and a cowling 30g to the operative position shown. The nozzle 31 is blanked off by a number of baffle segments 25, directing the jet into the rings 24. The total effective outlet area is the sum of the annual areas shown by lines 26.
GB3673655A 1955-12-22 1955-12-22 Improvements in thrust-reversal devices for jet engines Expired GB794453A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BE553599D BE553599A (en) 1955-12-22
GB3673655A GB794453A (en) 1955-12-22 1955-12-22 Improvements in thrust-reversal devices for jet engines
FR1165966D FR1165966A (en) 1955-12-22 1956-12-12 Improvements to thrust reverser devices for jet engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3673655A GB794453A (en) 1955-12-22 1955-12-22 Improvements in thrust-reversal devices for jet engines

Publications (1)

Publication Number Publication Date
GB794453A true GB794453A (en) 1958-05-07

Family

ID=10390781

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3673655A Expired GB794453A (en) 1955-12-22 1955-12-22 Improvements in thrust-reversal devices for jet engines

Country Status (3)

Country Link
BE (1) BE553599A (en)
FR (1) FR1165966A (en)
GB (1) GB794453A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160076487A1 (en) * 2014-09-17 2016-03-17 The Boeing Company System and Method for Improved Thrust Reverser With Increased Reverse Thrust and Reduced Noise

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160076487A1 (en) * 2014-09-17 2016-03-17 The Boeing Company System and Method for Improved Thrust Reverser With Increased Reverse Thrust and Reduced Noise
US9719466B2 (en) * 2014-09-17 2017-08-01 The Boeing Company System and method for improved thrust reverser with increased reverse thrust and reduced noise

Also Published As

Publication number Publication date
FR1165966A (en) 1958-10-31
BE553599A (en)

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