GB910679A - Improvements in or relating to propulsion nozzles - Google Patents

Improvements in or relating to propulsion nozzles

Info

Publication number
GB910679A
GB910679A GB3245858A GB3245858A GB910679A GB 910679 A GB910679 A GB 910679A GB 3245858 A GB3245858 A GB 3245858A GB 3245858 A GB3245858 A GB 3245858A GB 910679 A GB910679 A GB 910679A
Authority
GB
United Kingdom
Prior art keywords
stream
engine
propulsion
annular
velocity
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
GB3245858A
Inventor
Albert George Hurn
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.)
Boulton Paul Aircraft Ltd
Original Assignee
Boulton Paul Aircraft 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 Boulton Paul Aircraft Ltd filed Critical Boulton Paul Aircraft Ltd
Priority to GB3245858A priority Critical patent/GB910679A/en
Publication of GB910679A publication Critical patent/GB910679A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C29/00—Aircraft capable of landing or taking-off vertically, e.g. vertical take-off and landing [VTOL] aircraft
    • B64C29/0008—Aircraft capable of landing or taking-off vertically, e.g. vertical take-off and landing [VTOL] aircraft having its flight directional axis horizontal when grounded
    • B64C29/0041—Aircraft capable of landing or taking-off vertically, e.g. vertical take-off and landing [VTOL] aircraft having its flight directional axis horizontal when grounded the lift during taking-off being created by jet motors
    • B64C29/0058—Aircraft capable of landing or taking-off vertically, e.g. vertical take-off and landing [VTOL] aircraft having its flight directional axis horizontal when grounded the lift during taking-off being created by jet motors with vertical jet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C29/00—Aircraft capable of landing or taking-off vertically, e.g. vertical take-off and landing [VTOL] aircraft
    • B64C29/0008—Aircraft capable of landing or taking-off vertically, e.g. vertical take-off and landing [VTOL] aircraft having its flight directional axis horizontal when grounded
    • B64C29/0016—Aircraft capable of landing or taking-off vertically, e.g. vertical take-off and landing [VTOL] aircraft having its flight directional axis horizontal when grounded the lift during taking-off being created by free or ducted propellers or by blowers

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Control Of Turbines (AREA)
  • Exhaust Silencers (AREA)

Abstract

910,679. Jet-propulsion nozzles. BOULTON PAUL AIRCRAFT Ltd. Oct. 9, 1959 [Oct. 10, 1958], No. 32458/58. Class 110 (3). [Also in Group XXXIII] A propulsion nozzle for an engine producing a stream of effluent fluid includes means to surround the stream produced by the engine with a moving annular screen of fluid derived from a power source other than the engine, the part of the screen adjacent to the stream moving in parallel with it at substantially the same velocity and the parts of the screen further from the stream having a velocity in the direction parallel with the stream of substantially lower value than that of the stream. A propulsion unit comprises a propeller or turbine 7 and a nozzle 1 surrounded by an annular passage 3 formed with an annular diverging orifice 2 formed with guide vanes 5. Fluid from a separate source is supplied to passage 3 through a control valve 4 and is deflected at the outlet by varying extents by the vanes 5 so as to produce a velocity gradient which reduces noise.
GB3245858A 1958-10-10 1958-10-10 Improvements in or relating to propulsion nozzles Expired GB910679A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3245858A GB910679A (en) 1958-10-10 1958-10-10 Improvements in or relating to propulsion nozzles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3245858A GB910679A (en) 1958-10-10 1958-10-10 Improvements in or relating to propulsion nozzles

Publications (1)

Publication Number Publication Date
GB910679A true GB910679A (en) 1962-11-14

Family

ID=10338907

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3245858A Expired GB910679A (en) 1958-10-10 1958-10-10 Improvements in or relating to propulsion nozzles

Country Status (1)

Country Link
GB (1) GB910679A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2143280A (en) * 1983-06-24 1985-02-06 John Bernard Attkins Propulsion device
GB2299623A (en) * 1995-04-07 1996-10-09 Martin Lindsay Mcculloch A propulsion unit
US6016996A (en) * 1995-06-02 2000-01-25 British Aerospace Plc Airborne apparatus for ground erosion reduction
EP2058226A1 (en) * 2007-11-08 2009-05-13 Eurocopter Aircraft equipped with a silent shrouded rotor

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2143280A (en) * 1983-06-24 1985-02-06 John Bernard Attkins Propulsion device
GB2299623A (en) * 1995-04-07 1996-10-09 Martin Lindsay Mcculloch A propulsion unit
US6016996A (en) * 1995-06-02 2000-01-25 British Aerospace Plc Airborne apparatus for ground erosion reduction
EP2058226A1 (en) * 2007-11-08 2009-05-13 Eurocopter Aircraft equipped with a silent shrouded rotor
FR2923456A1 (en) * 2007-11-08 2009-05-15 Eurocopter France AIRCRAFT WITH SILENT CARE ROTOR
JP2009113802A (en) * 2007-11-08 2009-05-28 Eurocopter Aircraft equipped with silent shrouded rotor
US7959105B2 (en) 2007-11-08 2011-06-14 Eurocopter Aircraft provided with a silent shrouded rotor

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