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Patent Searching and Data


Title:
CLOSED-CYCLE HYDRO-JET THRUSTER
Document Type and Number:
WIPO Patent Application WO/2014/021965
Kind Code:
A3
Abstract:
The present invention provides closed-cycle hydro-jet thruster (CCHJT) used for the direct conversion of torque into thrust and/or lift force. In a preferred embodiment, the CCHJT includes an outer casing; two inner-members; an intermediate body; a plurality of convergent nozzles; a set of intersecting members; a drive shaft; a rotor assembly having a plurality of blades; a hydraulic fluid completely filling the space within the casing; and a fluid pressure regulating system. In operation, the rotating blades accelerate and compress the hydraulic fluid leading to generation of thrust/lift force on the blades, which is transmitted to the CCHJT's casing through thrust bearings. This is followed by acceleration of the working fluid within the nozzles, suddenly expanding the accelerated working fluid within sub-passages defined in-between the intersecting members, and then directing the flow of the working fluid towards the upstream suction surfaces of the blades for re-acceleration.

Inventors:
MARCUS, Essam Tawfik (124 Black Ridge Street, Morrisville, North Carolina, 27560, US)
Application Number:
US2013/039765
Publication Date:
June 18, 2015
Filing Date:
May 06, 2013
Export Citation:
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Assignee:
MARCUS, Essam Tawfik (124 Black Ridge Street, Morrisville, North Carolina, 27560, US)
International Classes:
B04B1/14; F16D31/00
Foreign References:
US2511875A
US4067494A
US20100071344A1
US20040022647A1
US20100322761A1
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