WO2001074658A3 - Marine propeller - Google Patents

Marine propeller Download PDF

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Publication number
WO2001074658A3
WO2001074658A3 PCT/US2001/009828 US0109828W WO0174658A3 WO 2001074658 A3 WO2001074658 A3 WO 2001074658A3 US 0109828 W US0109828 W US 0109828W WO 0174658 A3 WO0174658 A3 WO 0174658A3
Authority
WO
WIPO (PCT)
Prior art keywords
blades
marine propeller
reverse
bite
multiplicity
Prior art date
Application number
PCT/US2001/009828
Other languages
French (fr)
Other versions
WO2001074658A2 (en
Inventor
David J Gruenwald
Original Assignee
Power Vent Technologies 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
Priority claimed from US09/539,993 external-priority patent/US6390776B1/en
Application filed by Power Vent Technologies Inc filed Critical Power Vent Technologies Inc
Priority to PCT/US2001/009828 priority Critical patent/WO2001074658A2/en
Priority to AU2001249520A priority patent/AU2001249520A1/en
Publication of WO2001074658A2 publication Critical patent/WO2001074658A2/en
Publication of WO2001074658A3 publication Critical patent/WO2001074658A3/en

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
    • B63H1/26—Blades

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

A marine propeller (10) with increased performance in reverse has a hub (11) and a multiplicity of blades (13, 16) extending radially outward. A portion of the trailing edges (15, 17) of some or all of the blades (13, 16) are modified to lessen interference between blades (13, 16) and increase the bite of those blades (13, 16) when operated in reverse.
PCT/US2001/009828 2000-03-30 2001-03-26 Marine propeller WO2001074658A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/US2001/009828 WO2001074658A2 (en) 2000-03-30 2001-03-26 Marine propeller
AU2001249520A AU2001249520A1 (en) 2001-03-26 2001-03-26 Marine propeller

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/539,993 US6390776B1 (en) 2000-03-30 2000-03-30 Marine propeller
US09/539,993 2000-03-30
PCT/US2001/009828 WO2001074658A2 (en) 2000-03-30 2001-03-26 Marine propeller

Publications (2)

Publication Number Publication Date
WO2001074658A2 WO2001074658A2 (en) 2001-10-11
WO2001074658A3 true WO2001074658A3 (en) 2002-05-02

Family

ID=26680449

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/009828 WO2001074658A2 (en) 2000-03-30 2001-03-26 Marine propeller

Country Status (1)

Country Link
WO (1) WO2001074658A2 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR671016A (en) * 1928-03-31 1929-12-07 Improvements to the wings of propeller wheels for thrusters, turbines, pumps, windmills or the like
DE1113386B (en) * 1960-06-18 1961-08-31 Zeise Theodor Fa Fully cavitating profile, especially for ship propellers
DE1919086A1 (en) * 1969-04-15 1970-12-17 Schneekluth Dr Ing Herbert Ship screw propellers with blades of unequal radii
JPS6150893A (en) * 1984-08-17 1986-03-13 Kobe Steel Ltd Marine propeller
US4789306A (en) * 1985-11-15 1988-12-06 Attwood Corporation Marine propeller
JPH03292286A (en) * 1990-04-09 1991-12-24 Takayoshi Sato Rotary blade

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4689026A (en) 1985-08-26 1987-08-25 Small Mark S Propeller tunnel baffle and method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR671016A (en) * 1928-03-31 1929-12-07 Improvements to the wings of propeller wheels for thrusters, turbines, pumps, windmills or the like
DE1113386B (en) * 1960-06-18 1961-08-31 Zeise Theodor Fa Fully cavitating profile, especially for ship propellers
DE1919086A1 (en) * 1969-04-15 1970-12-17 Schneekluth Dr Ing Herbert Ship screw propellers with blades of unequal radii
JPS6150893A (en) * 1984-08-17 1986-03-13 Kobe Steel Ltd Marine propeller
US4789306A (en) * 1985-11-15 1988-12-06 Attwood Corporation Marine propeller
JPH03292286A (en) * 1990-04-09 1991-12-24 Takayoshi Sato Rotary blade

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 010, no. 211 (M - 501) 24 July 1986 (1986-07-24) *
PATENT ABSTRACTS OF JAPAN vol. 016, no. 129 (M - 1228) 2 April 1992 (1992-04-02) *
TACHMINDIJ A J ET AL: "THE DESIGN AND PERFORMANCE OF SUPERCAVITATING PROPELLERS", DAVID TAYLOR MODEL BASIN REPORT, no. C-807, February 1957 (1957-02-01), CARDEROCK, MD, USA, pages 1 - 33, XP002183522 *

Also Published As

Publication number Publication date
WO2001074658A2 (en) 2001-10-11

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