Shrouded propeller

Details Shrouded propeller Shrouded propeller

1987-03-26

1988-10-11

Powell, Jr., Everette A.

Rotary kinetic fluid motors or pumps

With separating means or guard for solid matter in working...

415213C, 416189, 416247A, B63H 128

Patent

active

047767553

ABSTRACT:
A shrouded propeller for operation in ice-filled waters, which arrangement comprises a propeller and a nozzle encirculating the propeller, which propeller arrangement comprises an ice crusher annulus. The propeller arrangement is provided by at least one first flow path for the water flow entering the nozzle, which first path is directed via the interspace between said annulus and the actual nozzle. The first path is further directed to and through the nozzle interior. The arrangement is provided by a flow path for the water main flow through the central portion bordered by said annulus. If the central flow path is obstructed by ice chunks, said first path is available for the water flow inside the nozzle.

REFERENCES:
patent: 2723641 (1955-11-01), Taylor
patent: 3499412 (1970-03-01), Anthes et al.
patent: 3508517 (1970-04-01), Hannan
patent: 3519367 (1970-07-01), Soulez-Lariviere
patent: 3677660 (1972-07-01), Taniguchi et al.
patent: 3738307 (1973-06-01), Jacobsen et al.
patent: 4288223 (1981-09-01), Gonzalez et al.
patent: 4427393 (1984-01-01), May
patent: 4613279 (1986-09-01), Corren et al.

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