GB1241457A - Improvements in or relating to propellers - Google Patents

Improvements in or relating to propellers

Info

Publication number
GB1241457A
GB1241457A GB5958368A GB5958368A GB1241457A GB 1241457 A GB1241457 A GB 1241457A GB 5958368 A GB5958368 A GB 5958368A GB 5958368 A GB5958368 A GB 5958368A GB 1241457 A GB1241457 A GB 1241457A
Authority
GB
United Kingdom
Prior art keywords
blade
pair
apertures
trailing edge
section
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
GB5958368A
Inventor
Alastair William Rodne Allcock
Austin Richard Seed
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.)
MINISTER OF AVIATION SUPPLY
Original Assignee
MINISTER OF AVIATION SUPPLY
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 MINISTER OF AVIATION SUPPLY filed Critical MINISTER OF AVIATION SUPPLY
Priority to GB5958368A priority Critical patent/GB1241457A/en
Priority to DE19691962002 priority patent/DE1962002A1/en
Priority to FR6943253A priority patent/FR2063114B1/fr
Publication of GB1241457A publication Critical patent/GB1241457A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
    • B64C11/16—Blades
    • B64C11/20—Constructional features
    • B64C11/24—Hollow blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/32—Rotors
    • B64C27/325—Circulation-control rotors

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

1,241,457. Propeller blades. AVIATION SUPPLY, MINISTER OF. 24 Nov., 1969 [14 Dec., 1968], No. 59583/68. Heading B7V. [Also in Division F2] A propeller blade 1 has four spanwise extending apertures 7, 8, 9, 10 formed in its surface and fluid is supplied to the apertures for discharge from them as thin layers tangentially over the blade surface towards the trailing edge P of the blade. The pair of apertures 7, 8 is located at one side of the trailing edge and the other pair 9, 10 at the other side. The circumferential displacement of the apertures of pair 7, 8 around the blade section relative to the trailing edge differs from that of the other pair. The blade shown is a cylindrical shell of circular cross-section. In other embodiments the blade may have a tip portion of reduced cross-section.
GB5958368A 1968-12-14 1968-12-14 Improvements in or relating to propellers Expired GB1241457A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB5958368A GB1241457A (en) 1968-12-14 1968-12-14 Improvements in or relating to propellers
DE19691962002 DE1962002A1 (en) 1968-12-14 1969-12-11 Propeller blade
FR6943253A FR2063114B1 (en) 1968-12-14 1969-12-12

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5958368A GB1241457A (en) 1968-12-14 1968-12-14 Improvements in or relating to propellers

Publications (1)

Publication Number Publication Date
GB1241457A true GB1241457A (en) 1971-08-04

Family

ID=10484052

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5958368A Expired GB1241457A (en) 1968-12-14 1968-12-14 Improvements in or relating to propellers

Country Status (3)

Country Link
DE (1) DE1962002A1 (en)
FR (1) FR2063114B1 (en)
GB (1) GB1241457A (en)

Also Published As

Publication number Publication date
DE1962002A1 (en) 1970-07-16
FR2063114B1 (en) 1973-03-16
FR2063114A1 (en) 1971-07-09

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