Patent Application
20120214364
Pub. No 2008/0141652A1, Pub. Date: Jun. 19, 2008, and then titled RING JET PROPULSOR by the same author.
Said application is considered as abandoned now.
Not applicable.
Not applicable.
This proposal relates to the hydrodynamic jet boost propulsion structures for marine motor vessels and deals with:
The thrust and speed levels of the conventional motor vessels are evidently not high enough. The ships move slowly. Many kinds of maritime thrust propellers, water-jets, other regular devices look outdated, and have to be improved with substantial growth of thrust.
This proposal, as an improved redeveloped simplified version of said above abandoned one, suggests a method and its corresponding means for high thrust levels obtaining with usage of closed ring tunnel.
Any prior arts where a closed loop tubular ring tunnel were used in for a hydrodynamic boost thrust obtaining, were not found.
The substance and key objects include usage of:
Said above means provide usage of their corresponding, natural, and interdependent method where in:
The drawings are schematic for better clarity. The regular, conventional, and obviously auxiliary elements are not shown.
FIG. 5A—a data table of pressure and thrust patterns and terms.
In the drawings, closely related units, parts, and elements have the same numbers but different alphabetic suffixes.
20A, 20B—ring boost propulsor sets 21—closed oval tunnel 22A, 22B—axial-flow pumps 23—electric motor 24—spring-piston valve 25—meters 26—pipe-connector 27—valve-adjuster 30—jet-duct assembly 30A—fairing cover unit 31—intake gate-pump 32—gap gate—pump 33—duct 33A—duct-adapter 33B—duct meters 34—electric motor 35—drive-adjuster 36—intake filter 37—nozzle-ejector 37A—thrust impeller 37B—electric motor 37C—reversing bucket 37D—servo 40—vessel 41—power unit.
Water flows and marks: Iw—water intake Jd—duct jet Ni—nozzle intake Ne—nozzle exhaust Rf—ring circular flow IL—intake level WS—water surface level
Water pressure data indicators: Paw, Prd, Pni, Pne—are ambient water, ring-duct, nozzle intake, and nozzle exhaust pressures, respectively;
Thrust terms and definitions: Tbt—total boost thrust Tm, Tp—momentum and pressure portions of Tbt, respectively dMe/dt—mass flow through the nozzle-ejector VM—vessel move
Vea—average nozzle—ejector exit velocity through the area An, Tcm—average thrust of the similar regular means TR—thrust ratio.
The reference numerals 23, 24, 25, 26, 27, 33A, 34, 36, 37B, 37C, 37D, 41 are conventional adapted units used in present new proposal.
The Ring Boost Propulsor (RBP) represents a technological method which is closely interdependent with its means all together developed for better thrust obtaining in energy saving manner.
Substantially higher levels of the thrust can provide new levels of speeds and other advantages for any kind of motor vessels.
The RBP includes hydraulically interconnected devices which rise the pressure of water flows and protect said risen pressure at all the steps thus rising in times the total boost thrust Tbt.
The gate-pumps 31 and 32 fulfill the inner space of the jet-duct assembly 30 and oval tunnel 21 with ambient water; the pipe-connector 26 and then opened valve-adjuster 27 are used.
The axial-flow pumps 22A and 22B, working in series, rise the pressure of the flow Rf up to the definite level. This risen pressure is provided to the duct 33 due to the pipe-connector 26 and valve-adjuster 27; the common risen pressure Prd is protected by both sealing gate-pumps 31 and 32; the spring-piston valve 24 prevents cavitation.
When the meters 25 and 33B show a balanced pressure, the thrust impeller 37A starts and develops total thrust T′bt as a sum of momentum and pressure parts. The operation of elements 34, 35, 30A, 36, 37C, 37D and other—all indicated—is clear in drawing figures from 1 to 5A.
