GB520984A - Improvements in or relating to the propulsion of air and marine craft - Google Patents

Improvements in or relating to the propulsion of air and marine craft

Info

Publication number
GB520984A
GB520984A GB3226138A GB3226138A GB520984A GB 520984 A GB520984 A GB 520984A GB 3226138 A GB3226138 A GB 3226138A GB 3226138 A GB3226138 A GB 3226138A GB 520984 A GB520984 A GB 520984A
Authority
GB
United Kingdom
Prior art keywords
propeller
guiding means
flow
fluid
air
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
GB3226138A
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
Priority to GB3226138A priority Critical patent/GB520984A/en
Publication of GB520984A publication Critical patent/GB520984A/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
    • B63H5/16—Arrangements on vessels of propulsion elements directly acting on water of propellers characterised by being mounted in recesses; with stationary water-guiding elements; Means to prevent fouling of the propeller, e.g. guards, cages or screens

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Control Of Turbines (AREA)

Abstract

520,984. Propelling aircraft and ships. KORT, L. Nov. 7, 1938, No. 32261. [Classes 4 and 114] In an air or marine craft with a pusher screw propeller in which, owing to the interference of the parts in front of the propeller, the velocity at which fluid reaches different parts of the propeller disc is different, guiding means are provided on the craft in front of and near to the propeller circle in the zones where the speed of the fluid flow is below the average, the guiding means being so shaped that the flow of the fluid is deflected towards the direction of movement of the propeller blades as they pass behind the guiding means. Guiding means may also be provided to deflect the flow against the direction of movement of the blades in the zones where the speed of flow is above the average. In a ship such means may include a guide valve 5 above the propeller shaft, and a stern-post shaped in plan as shown in Fig. 3 and raked backwards along the line 2-3 of Fig. 2. The invention is stated to be particularly applicable to a propeller surrounded by a nozzle-ring, as shown.
GB3226138A 1938-11-07 1938-11-07 Improvements in or relating to the propulsion of air and marine craft Expired GB520984A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3226138A GB520984A (en) 1938-11-07 1938-11-07 Improvements in or relating to the propulsion of air and marine craft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3226138A GB520984A (en) 1938-11-07 1938-11-07 Improvements in or relating to the propulsion of air and marine craft

Publications (1)

Publication Number Publication Date
GB520984A true GB520984A (en) 1940-05-08

Family

ID=10335858

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3226138A Expired GB520984A (en) 1938-11-07 1938-11-07 Improvements in or relating to the propulsion of air and marine craft

Country Status (1)

Country Link
GB (1) GB520984A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5143598A (en) * 1974-10-09 1976-04-14 Mitsubishi Heavy Ind Ltd NOZURUPUROPERA
GB2119732A (en) * 1982-05-04 1983-11-23 Herbert Schneekluth A flow guide surface for the stern of a propeller ship
EP0267372A1 (en) * 1986-08-06 1988-05-18 Nippon Kokan Kabushiki Kaisha Shape of the stern of a vessel
US4932908A (en) * 1988-03-03 1990-06-12 United States Of America Energy efficient asymmetric pre-swirl vane and twisted propeller propulsion system
US5209642A (en) * 1988-03-03 1993-05-11 The United States Of America As Represented By The Secretary Of Transportation Modified optimum pitch propeller
US10086935B2 (en) 2014-12-09 2018-10-02 Sikorsky Aircraft Corporation Guide vanes for a pusher propeller for rotary wing aircraft

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5143598A (en) * 1974-10-09 1976-04-14 Mitsubishi Heavy Ind Ltd NOZURUPUROPERA
JPS572557B2 (en) * 1974-10-09 1982-01-16
GB2119732A (en) * 1982-05-04 1983-11-23 Herbert Schneekluth A flow guide surface for the stern of a propeller ship
EP0267372A1 (en) * 1986-08-06 1988-05-18 Nippon Kokan Kabushiki Kaisha Shape of the stern of a vessel
US4785756A (en) * 1986-08-06 1988-11-22 Nippon Kokan Kabushiki Kaisha Vessel having propeller arranged on vertical hull center plane
US4932908A (en) * 1988-03-03 1990-06-12 United States Of America Energy efficient asymmetric pre-swirl vane and twisted propeller propulsion system
US5209642A (en) * 1988-03-03 1993-05-11 The United States Of America As Represented By The Secretary Of Transportation Modified optimum pitch propeller
US10086935B2 (en) 2014-12-09 2018-10-02 Sikorsky Aircraft Corporation Guide vanes for a pusher propeller for rotary wing aircraft

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