GB1507677A - Ducted propellers - Google Patents

Ducted propellers

Info

Publication number
GB1507677A
GB1507677A GB45222/74A GB4522274A GB1507677A GB 1507677 A GB1507677 A GB 1507677A GB 45222/74 A GB45222/74 A GB 45222/74A GB 4522274 A GB4522274 A GB 4522274A GB 1507677 A GB1507677 A GB 1507677A
Authority
GB
United Kingdom
Prior art keywords
propeller
duct
control elements
ducted
deflecting
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
GB45222/74A
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.)
National Research Development Corp UK
Original Assignee
National Research Development Corp UK
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 National Research Development Corp UK filed Critical National Research Development Corp UK
Priority to GB45222/74A priority Critical patent/GB1507677A/en
Priority to NO753483A priority patent/NO140884C/en
Priority to NL7512115A priority patent/NL7512115A/en
Priority to CA237,648A priority patent/CA1036873A/en
Priority to DE19752546580 priority patent/DE2546580A1/en
Priority to JP50125829A priority patent/JPS5164295A/en
Publication of GB1507677A publication Critical patent/GB1507677A/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
    • B63H25/00—Steering; Slowing-down otherwise than by use of propulsive elements; Dynamic anchoring, i.e. positioning vessels by means of main or auxiliary propulsive elements
    • B63H25/48—Steering or slowing-down by deflection of propeller slipstream otherwise than by rudder
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Exhaust Silencers (AREA)
  • Nozzles (AREA)
  • Paper (AREA)
  • Transplanting Machines (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)

Abstract

1507677 Ducted propellers NATIONAL RESEARCH DEVELOPMENT CORP 14 Oct 1975 [18 Oct 1974] 45222/74 Heading B7V A ducted propeller assembly 10 comprises control elements situated in the duct 14 between the propeller 12 and one end of the duct which operate to detach the boundary layer flow component of the propeller wake from one side or the other of the duct thereby deflecting the propeller wake horizontally to provide steering. In the embodiment shown, the control elements comprise slots 18, 20 supplied with water via control valves. For submersible control elements for deflecting the propeller wake vertically may be provided.
GB45222/74A 1974-10-18 1974-10-18 Ducted propellers Expired GB1507677A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB45222/74A GB1507677A (en) 1974-10-18 1974-10-18 Ducted propellers
NO753483A NO140884C (en) 1974-10-18 1975-10-15 PROPELLER NOZLE DEVICE.
NL7512115A NL7512115A (en) 1974-10-18 1975-10-15 SCREW WITH CASING AND METHOD FOR OPERATING IT.
CA237,648A CA1036873A (en) 1974-10-18 1975-10-15 Ducted propellers
DE19752546580 DE2546580A1 (en) 1974-10-18 1975-10-17 STEERING DEVICE FOR SHIPS WITH THROW PROPELLER DRIVE
JP50125829A JPS5164295A (en) 1974-10-18 1975-10-17 Dakuto puroperasochi

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB45222/74A GB1507677A (en) 1974-10-18 1974-10-18 Ducted propellers

Publications (1)

Publication Number Publication Date
GB1507677A true GB1507677A (en) 1978-04-19

Family

ID=10436363

Family Applications (1)

Application Number Title Priority Date Filing Date
GB45222/74A Expired GB1507677A (en) 1974-10-18 1974-10-18 Ducted propellers

Country Status (6)

Country Link
JP (1) JPS5164295A (en)
CA (1) CA1036873A (en)
DE (1) DE2546580A1 (en)
GB (1) GB1507677A (en)
NL (1) NL7512115A (en)
NO (1) NO140884C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103963948A (en) * 2014-05-22 2014-08-06 中国船舶重工集团公司第七○二研究所 Method for designing efficient duct

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202007016163U1 (en) * 2007-11-16 2008-01-24 Becker Marine Systems Gmbh & Co. Kg Kort nozzle
CN108163171B (en) * 2018-02-07 2023-06-23 济南大学 Ship propeller

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103963948A (en) * 2014-05-22 2014-08-06 中国船舶重工集团公司第七○二研究所 Method for designing efficient duct
CN103963948B (en) * 2014-05-22 2017-02-15 中国船舶重工集团公司第七○二研究所 Method for designing efficient duct

Also Published As

Publication number Publication date
NL7512115A (en) 1976-04-21
JPS5164295A (en) 1976-06-03
NO140884C (en) 1979-12-05
NO140884B (en) 1979-08-27
CA1036873A (en) 1978-08-22
NO753483L (en) 1976-04-21
DE2546580A1 (en) 1976-04-29

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee