GB1335845A - Axial screw type marine impeller combining axial flow with centrifugal throw - Google Patents

Axial screw type marine impeller combining axial flow with centrifugal throw

Info

Publication number
GB1335845A
GB1335845A GB1335845DA GB1335845A GB 1335845 A GB1335845 A GB 1335845A GB 1335845D A GB1335845D A GB 1335845DA GB 1335845 A GB1335845 A GB 1335845A
Authority
GB
United Kingdom
Prior art keywords
axial
screw type
ducts
blades
cowling
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
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 GB1335845A publication Critical patent/GB1335845A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D3/00—Axial-flow pumps
    • F04D3/02—Axial-flow pumps of screw type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H11/00—Marine propulsion by water jets
    • B63H11/02—Marine propulsion by water jets the propulsive medium being ambient water
    • B63H11/04—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps
    • B63H11/08—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps of rotary type

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Centrifugal Separators (AREA)

Abstract

1335845 Marine propulsion W MACKENZIE 19 May 1971 [17 June 1970] 29289/70 Heading B7V An axial screw type marine impeller combining axial flow with centrifugal throw comprises a rotor A which impels liquid towards a ducted cowling D. The rotor is provided with a plurality of blades A1 and the cowling with a plurality of ducts D1 sunk into its inner surface, the blades and ducts being helically arranged in the manner of multistart screw threads which have a progressively increasing lead towards the end of the helix adjacent the cowling outlet E1. The blades and ducts are respectively of opposite handed helical configuration. The assembly may be mounted on a retractable and rotatable vertical shaft G.
GB1335845D 1971-05-19 1971-05-19 Axial screw type marine impeller combining axial flow with centrifugal throw Expired GB1335845A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2928970 1971-05-19

Publications (1)

Publication Number Publication Date
GB1335845A true GB1335845A (en) 1973-10-31

Family

ID=10289180

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1335845D Expired GB1335845A (en) 1971-05-19 1971-05-19 Axial screw type marine impeller combining axial flow with centrifugal throw

Country Status (1)

Country Link
GB (1) GB1335845A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2177666A (en) * 1985-03-15 1987-01-28 Oscar Robert Rendell Propulsion means for water craft
EP0334737A1 (en) * 1988-03-24 1989-09-27 Pierre Carrouset Rotary non-positive machine, applicable as pump, compressor, propellor, generator or motive turbine
CN102486169A (en) * 2009-12-12 2012-06-06 赵明 High-efficiency axial flow and screw combined pump for ship
EP2858893B1 (en) 2012-06-06 2019-10-09 G.A.M. Manshanden Management B.V. Ship screw, pump screw or turbine screw

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2177666A (en) * 1985-03-15 1987-01-28 Oscar Robert Rendell Propulsion means for water craft
EP0334737A1 (en) * 1988-03-24 1989-09-27 Pierre Carrouset Rotary non-positive machine, applicable as pump, compressor, propellor, generator or motive turbine
WO1989009342A1 (en) * 1988-03-24 1989-10-05 Pierre Carrouset Rotary machine with non-positive displacement, for use as a pump, compressor, propulsion unit, generator or drive turbine
US5139391A (en) * 1988-03-24 1992-08-18 Pierre Carrouset Rotary machine with non-positive displacement usable as a pump, compressor, propulsor, generator or drive turbine
CN102486169A (en) * 2009-12-12 2012-06-06 赵明 High-efficiency axial flow and screw combined pump for ship
CN102486169B (en) * 2009-12-12 2015-06-03 赵明 High-efficiency axial flow and screw combined pump for ship
EP2858893B1 (en) 2012-06-06 2019-10-09 G.A.M. Manshanden Management B.V. Ship screw, pump screw or turbine screw

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees