Title:
MARINE PROPELLER
Document Type and Number:
WIPO Patent Application WO2001074658
Kind Code:
A3
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.
Inventors:
GRUENWALD DAVID J
Application Number:
PCT/US2001/009828
Publication Date:
May 02, 2002
Filing Date:
March 26, 2001
Export Citation:
Assignee:
POWER VENT TECHNOLOGIES INC (US)
International Classes:
B63H1/26; (IPC1-7): B63H1/26; B63H1/18; B63H1/28
Foreign References:
| DE1919086A1 | 1970-12-17 | |||
| DE1113386B | 1961-08-31 | |||
| US4789306A | 1988-12-06 | |||
| FR671016A | 1929-12-07 |
Other References:
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
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)
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)
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