GB873851A - Apparatus for improving the performance of stream-lined bodies propelled in a fluid - Google Patents

Apparatus for improving the performance of stream-lined bodies propelled in a fluid

Info

Publication number
GB873851A
GB873851A GB24258/58A GB2425858A GB873851A GB 873851 A GB873851 A GB 873851A GB 24258/58 A GB24258/58 A GB 24258/58A GB 2425858 A GB2425858 A GB 2425858A GB 873851 A GB873851 A GB 873851A
Authority
GB
United Kingdom
Prior art keywords
aircraft
boundary layer
propulsion means
propulsion
improving
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
GB24258/58A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB873851A publication Critical patent/GB873851A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
    • B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
    • B63H5/14—Arrangements on vessels of propulsion elements directly acting on water of propellers characterised by being mounted in non-rotating ducts or rings, e.g. adjustable for steering purpose
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64B—LIGHTER-THAN AIR AIRCRAFT
    • B64B1/00—Lighter-than-air aircraft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C21/00—Influencing air flow over aircraft surfaces by affecting boundary layer flow
    • B64C21/01—Boundary layer ingestion [BLI] propulsion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C2230/00—Boundary layer controls
    • B64C2230/04—Boundary layer controls by actively generating fluid flow
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00—Aeronautics or air transport
    • Y02T50/10—Drag reduction

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Control Of Position, Course, Altitude, Or Attitude Of Moving Bodies (AREA)

Abstract

873,851. Aircraft ; boundary layer control ; submarine vessels. MERCIER, P. July 28, 1958 [Aug. 7, 1957], No. 24258/58. Classes 4, 113 and 114. [Also in Group XXVI] Means for improving the propulsion of streamlined bodies, such as aircraft and submarines, which have a surface region where transition of boundary layer flow from laminar to turbulent initiates, comprises power operated propulsion means at the rear of the body arranged coaxially with the axis of symmetry of the body, a first tubular element supported in coaxial and radially spaced relationship with the propulsion means, and a second tubular element surrounding a rear part of the body aft of said region and radially spaced therefrom to define an annular passage, the second element having an external diameter smaller than that of the first and having a longitudinal section of such aerofoil contour as to accelerate the fluid flow induced through the passage by the propulsion means. Fig. 2 shows the rear of an aircraft or submarine 1, fins 5 supporting the tubular elements 2, 3 shown in section. A screw propeller 11 and impeller 13 provide forward motion, and vanes 18 straight out the fluid flow from the impeller. Control surfaces 7, 8 are movable about vertical and lateral axes respectively. Power for the propulsion means may be transmitted by mechanical, hydromechanical, pneumatic, or electric means. The annular members 2, 3 are stated to reduce the power needed for a given speed, and with the propeller to energize and prevent separation of the boundary layer.
GB24258/58A 1957-08-07 1958-07-28 Apparatus for improving the performance of stream-lined bodies propelled in a fluid Expired GB873851A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR873851X 1957-08-07

Publications (1)

Publication Number Publication Date
GB873851A true GB873851A (en) 1961-07-26

Family

ID=9359477

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24258/58A Expired GB873851A (en) 1957-08-07 1958-07-28 Apparatus for improving the performance of stream-lined bodies propelled in a fluid

Country Status (1)

Country Link
GB (1) GB873851A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2179312A (en) * 1985-08-19 1987-03-04 Hollming Oy Turnable propeller assembly
GB2190344A (en) * 1986-04-29 1987-11-18 Hollming Oy Shrouded propeller device for a vessel
WO2001070569A3 (en) * 2000-03-20 2002-03-07 Electric Boat Corp Strut-mounted marine propulsion unit
GB2542184A (en) * 2015-09-11 2017-03-15 Rolls Royce Plc Aircraft comprising a boundary layer ingesting propulsor
CN108163171A (en) * 2018-02-07 2018-06-15 济南大学 Naval vessel propeller
EP3366571A1 (en) * 2017-02-22 2018-08-29 Rolls-Royce plc Passive boundary layer propulsor

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2179312A (en) * 1985-08-19 1987-03-04 Hollming Oy Turnable propeller assembly
GB2190344A (en) * 1986-04-29 1987-11-18 Hollming Oy Shrouded propeller device for a vessel
GB2190344B (en) * 1986-04-29 1990-12-05 Hollming Oy Propeller device for a vessel
WO2001070569A3 (en) * 2000-03-20 2002-03-07 Electric Boat Corp Strut-mounted marine propulsion unit
GB2542184A (en) * 2015-09-11 2017-03-15 Rolls Royce Plc Aircraft comprising a boundary layer ingesting propulsor
EP3366571A1 (en) * 2017-02-22 2018-08-29 Rolls-Royce plc Passive boundary layer propulsor
US10787270B2 (en) 2017-02-22 2020-09-29 Rolls-Royce Plc Propulsor
CN108163171A (en) * 2018-02-07 2018-06-15 济南大学 Naval vessel propeller
CN108163171B (en) * 2018-02-07 2023-06-23 济南大学 Ship propeller

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