ES349613A1 - Marine propeller - Google Patents

Marine propeller

Info

Publication number
ES349613A1
ES349613A1 ES349613A ES349613A ES349613A1 ES 349613 A1 ES349613 A1 ES 349613A1 ES 349613 A ES349613 A ES 349613A ES 349613 A ES349613 A ES 349613A ES 349613 A1 ES349613 A1 ES 349613A1
Authority
ES
Spain
Prior art keywords
blades
fluid
distance
length
ducts
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
ES349613A
Other languages
Spanish (es)
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.)
OCEANICS Inc
Original Assignee
OCEANICS Inc
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 OCEANICS Inc filed Critical OCEANICS Inc
Publication of ES349613A1 publication Critical patent/ES349613A1/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
    • B63H1/00—Propulsive elements directly acting on water
    • B63H1/02—Propulsive elements directly acting on water of rotary type
    • B63H1/12—Propulsive elements directly acting on water of rotary type with rotation axis substantially in propulsive direction
    • B63H1/14—Propellers
    • B63H1/28—Other means for improving propeller efficiency
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H1/00—Propulsive elements directly acting on water
    • B63H1/02—Propulsive elements directly acting on water of rotary type
    • B63H1/12—Propulsive elements directly acting on water of rotary type with rotation axis substantially in propulsive direction
    • B63H1/14—Propellers
    • B63H1/18—Propellers with means for diminishing cavitation, e.g. supercavitation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H1/00—Propulsive elements directly acting on water
    • B63H1/02—Propulsive elements directly acting on water of rotary type
    • B63H1/12—Propulsive elements directly acting on water of rotary type with rotation axis substantially in propulsive direction
    • B63H1/14—Propellers
    • B63H1/20—Hubs; Blade connections
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H1/00—Propulsive elements directly acting on water
    • B63H1/02—Propulsive elements directly acting on water of rotary type
    • B63H1/12—Propulsive elements directly acting on water of rotary type with rotation axis substantially in propulsive direction
    • B63H1/14—Propellers
    • B63H1/26—Blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H1/00—Propulsive elements directly acting on water
    • B63H1/02—Propulsive elements directly acting on water of rotary type
    • B63H1/12—Propulsive elements directly acting on water of rotary type with rotation axis substantially in propulsive direction
    • B63H1/14—Propellers
    • B63H1/28—Other means for improving propeller efficiency
    • B63H2001/286—Injection of gas into fluid flow to propellers, or around propeller blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H23/00—Transmitting power from propulsion power plant to propulsive elements
    • B63H23/32—Other parts
    • B63H23/34—Propeller shafts; Paddle-wheel shafts; Attachment of propellers on shafts
    • B63H2023/346—Propeller shafts; Paddle-wheel shafts; Attachment of propellers on shafts comprising hollow shaft members

Abstract

A screw propeller 10 with hub portion 17 and blades 10a-10d has fluid ducts 13a, 13b, 13c in the blades. The fluid discharge openings 16 are located within a distance of 0À85 of the propeller tip radius from the blade root and they direct a jet sheet at an angle of between 15 and 75 degrees from the nose-tail line of each chord section of the blades. In the embodiment shown the width of the discharge openings is between 0À005 and 0À03 of the length of the nosetail line of the chord section and the openings are within a distance of 0À15 that length from the trailing edge of a blade. Fluid is passed to the ducts down drive-shaft 11 and through ports 18 of the hub.
ES349613A 1967-01-23 1968-01-22 Marine propeller Expired ES349613A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US616999A US3385374A (en) 1967-01-23 1967-01-23 Marine propeller

Publications (1)

Publication Number Publication Date
ES349613A1 true ES349613A1 (en) 1969-10-01

Family

ID=24471877

Family Applications (1)

Application Number Title Priority Date Filing Date
ES349613A Expired ES349613A1 (en) 1967-01-23 1968-01-22 Marine propeller

Country Status (10)

Country Link
US (1) US3385374A (en)
BE (1) BE709657A (en)
CH (1) CH491780A (en)
DE (1) DE1556511B2 (en)
ES (1) ES349613A1 (en)
FR (1) FR1553261A (en)
GB (1) GB1218363A (en)
NL (1) NL6800936A (en)
NO (1) NO127389B (en)
SE (1) SE350231B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2251468B3 (en) * 1972-10-20 2008-02-28 Licentia Patent-Verwaltungs-Gmbh Water vehicle e.g. ship, drive efficiency improving method, involves reducing frictional resistance of rotary drive propeller by adding water-soluble, flowable, strong polar and linear polymer of high molecular weight in boundary layer
US4050849A (en) * 1976-04-19 1977-09-27 Sheets Herman E Hydrodynamic transmission for ship propulsion
US5464321A (en) * 1978-11-24 1995-11-07 The United States Of America As Represented By The Secretary Of The Navy Marine propeller
GB2164306B (en) * 1984-09-17 1988-08-24 Vickers Plc Multi-bladed propeller and shaft assembly
DE19734770A1 (en) * 1997-08-11 1999-02-18 Tina Artinger Fluid dynamic profile
BG64380B1 (en) * 1999-04-26 2004-12-30 Добромир АЛЕКСАНДРОВ Propeller
DE10160000B4 (en) * 2001-12-07 2005-10-27 Kvaerner Warnow Werft Gmbh Method and device for reducing material damage to ship's pens
US10315742B2 (en) 2017-08-22 2019-06-11 Aurora Flight Sciences Corporation High efficiency, low RPM, underwater propeller
US11644046B2 (en) 2018-01-05 2023-05-09 Aurora Flight Sciences Corporation Composite fan blades with integral attachment mechanism

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA505082A (en) * 1954-08-17 Hauser Arnold Fluid propeller drive
US736952A (en) * 1903-01-08 1903-08-25 William Logan Screw-propeller.
US1119178A (en) * 1912-07-15 1914-12-01 Carl A Krantz Propeller and driving means therefor.
US1190755A (en) * 1914-07-16 1916-07-11 John Hahn Method of propulsion for vessels and screw-propeller for effecting the same.
FR493771A (en) * 1916-12-30 1919-08-21 Pierre Jean Baptiste Boiffin Propulsion system in fluids by gas jets, at high temperature, moving in a rotary motion around a common horizontal axis
FR22339E (en) * 1917-08-04 1921-06-30 Pierre Jean Baptiste Boiffin System of propulsion in fluids by high-temperature gas jets moving in a rotary motion around a common horizontal axis
FR26777E (en) * 1921-11-04 1924-03-15 Propulsion system in fluids by high temperature gas jets, driven in a rotary motion around a common horizontal axis
US2169325A (en) * 1934-06-08 1939-08-15 Julius J Novak Sustaining and propelling member for fluid-sustained craft
US2058361A (en) * 1935-06-04 1936-10-20 Starr K Sherwood Propeller
US2511156A (en) * 1946-08-07 1950-06-13 Richard J Glass Propeller
DE805732C (en) * 1949-06-30 1951-05-28 Hermann Piontek Wing screw or paddle wheel with nozzle drive
DE846361C (en) * 1949-09-13 1952-08-11 Arnold Hauser Drive device with an at least two-bladed propeller, especially for ships
DE828651C (en) * 1950-06-27 1952-01-21 Rudolf Voigt Dipl Ing Screw propeller with reaction drive
DE851001C (en) * 1951-03-08 1952-09-29 Hermann Piontek Wing screw or paddle wheel with nozzle drive, especially for ship propulsion
GB774396A (en) * 1954-04-23 1957-05-08 Elfyn John Richards Improvements in or relating to helicopter rotor propulsion means
US3109495A (en) * 1962-12-18 1963-11-05 Thomas G Laug Base ventilated hydrofoil
US3209714A (en) * 1963-10-14 1965-10-05 Romald E Bowles Fluid control systems for foils

Also Published As

Publication number Publication date
FR1553261A (en) 1969-01-10
NO127389B (en) 1973-06-18
BE709657A (en) 1968-07-19
GB1218363A (en) 1971-01-06
CH491780A (en) 1970-06-15
US3385374A (en) 1968-05-28
NL6800936A (en) 1968-07-24
SE350231B (en) 1972-10-23
DE1556511B2 (en) 1970-09-24
DE1556511A1 (en) 1970-09-24

Similar Documents

Publication Publication Date Title
GB1357713A (en) Cooled rotor blades for gas turbines
GB1250324A (en)
GB1509996A (en) Propeller blade structure
GB1304678A (en)
ES349613A1 (en) Marine propeller
WO1985002594A1 (en) Ring propeller
GB1247966A (en) Rotatable airfoils
GB789883A (en) High speed aerofoil
US2068792A (en) Screw propeller, turbine rotor, and like device
NO120681B (en)
GB1379701A (en) Engine cooling fans
GB1033759A (en) Aerofoil-shaped blade
GB1250197A (en)
SE397506B (en) SLOT-FITTED SPOILER FOR AN AIRCRAFT WING
GB808740A (en) Improvements in bladed rotors, and in particular in ship propellers
GB1121194A (en) Bladed rotor for a fluid flow machine
GB1127719A (en) Gas turbine engine
US2007506A (en) Propeller
GB511932A (en) Improvements in and relating to ventilating fans
GB1080015A (en) Steam turbines
GB910400A (en) Improvements in or relating to blades for axial flow rotary machines and the like
GB548371A (en) Improvements in and relating to blades for propellors or screws
GB303452A (en) Improvements in impeller screws such as those employed as rotary fans or pumps
GB2002247A (en) Mixers and rotors
GB485041A (en) Improvements in and relating to screw fans