Fluid reaction surfaces (i.e. – impellers) – Plural impellers having relative movement or independent... – Coaxial rotation
Patent
1985-08-28
1989-06-27
Garrett, Robert E.
Fluid reaction surfaces (i.e., impellers)
Plural impellers having relative movement or independent...
Coaxial rotation
416129, 416130, 416157B, 415130, B64C 1148
Patent
active
048424846
ABSTRACT:
A lightweight counterrotatable propeller system driven by a rotatable shaft is disclosed. The system includes first and second counterrotatable propellers, each propeller including a plurality of blades mounted on first and second hubs, respectively. Each blade is attached to the hub by means of a ball screw which converts centrifugal force on each of the rotating propeller blades into a pitch changing force. Gearing means for operatively connecting the shaft with each propeller are located between the propellers with a carrying member for one of the propellers forming an outer wall which radially bounds the gearing means. Additionally, non-rotating actuating means for changing propeller pitch are operatively connected to the blades of each of said first and second propellers through first and second thrust bearings, respectively.
REFERENCES:
patent: 1555043 (1925-09-01), Wagner
patent: 1851874 (1932-03-01), Seppeler
patent: 1920674 (1933-08-01), Barbarou
patent: 1921942 (1933-08-01), Ratier
patent: 1955688 (1934-04-01), Seppeler
patent: 2228638 (1941-01-01), Mercier
patent: 2275599 (1942-03-01), Armitage et al.
patent: 2394299 (1946-02-01), Friedrich
patent: 2425938 (1947-08-01), Hoover
patent: 2514166 (1950-07-01), Ratie
patent: 2522443 (1950-09-01), Gaubatz et al.
patent: 2687181 (1954-08-01), Tiedeman
patent: 2761517 (1956-09-01), Detamore et al.
patent: 2765040 (1956-10-01), Darrah
patent: 2804154 (1957-08-01), Treseder et al.
patent: 3646834 (1972-03-01), Davis
patent: 3869221 (1975-03-01), Wildner
patent: 3873236 (1975-03-01), Gall
patent: 4090812 (1978-05-01), Moran
patent: 4251987 (1981-02-01), Adamson
patent: 4453784 (1984-06-01), Kildea et al.
patent: 4563129 (1986-01-01), Pagluica
Garrett Robert E.
General Electric Company
Kapsalas George
Lawrence Derek P.
Rosen Steven J.
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