Underwater two phase ramjet engine
AssigneeDimotech Ltd.
InventorsHezi Varshay, Alon Gany
Life of this patent
Estimating the term…
Abstract
An underwater two-phase ramjet engine propulsion unit, includes an inlet for receiving a flow of water, compressed gas injector for injecting compressed gas into the flow of water, a mixing chamber for mixing the compressed gas with the flow of water to provide a two-phase flow of working fluid and a nozzle for accelerating the two-phase flow of working fluid so as to generate a two-phase jet. The propulsion unit can be implemented with a fixed geometry or with a variable geometry. The propulsion unit includes a supersonic gas injector as well as a subsonic gas injector. The propulsion unit includes a control system the controlling the compressor, supersonic gas injector, the subsonic gas injector, the geometry of the propulsion unit, and the direction of the thrust vector.
Claims21
An underwater two-phase ramjet engine propulsion unit, comprising:
- (a) an inlet for receiving a flow of water;
- (b) compressed gas injection means for injecting compressed gas into said flow of water;
- (c) a mixing chamber for mixing said compressed gas with said flow of water to provide a two-phase flow of working fluid;
- (d) a control system for controlling said compressed gas injector means so as to maintain said two-phase flow of working fluid in the bubbly regime;
- and
- a nozzle for accelerating said two-phase flow of working fluid so as to generate a two-phase jet, said compressed gas injection means including a supersonic gas injector.
The propulsion unit as in claim 32, wherein said large number of perforations include perforations of a plurality of sizes.
An underwater two-phase ramjet engine propulsion unit, comprising:
- (a) an inlet for receiving a flow of water;
- (b) compressed gas injection means for injecting compressed gas into said flow of water, said compressed gas injection means including a supersonic gas injector and a subsonic gas injector;
- (c) a mixing chamber for mixing said compressed gas with said flow of water to provide a two-phase flow of working fluid;
- (d) a control system for controlling distribution of said compressed gas between said supersonic gas injector and said subsonic gas injector;
- and
- (e) a nozzle for accelerating said two-phase flow of working fluid so as to generate a two-phase jet.
Dependencies are inferred from the claim text.