High-efficiency thruster independentof the outside environment

Abstract

The invention relates to an ecological thrusting device enabling optimum thrust independent from the outside environment. It consists of a special Francis turbine ( 1 ) from which the fluid is axially ejected at the outlet of the vane ( 1′ ), at a relative speed W 2t , and is collected in a defined free space of a straight radial pump ( 2 ). Under the action of the centrifugal force, the limit of the current lines forms a fixed virtual barrier Y t , thus preventing the centrifuged fluid from reaching the bottom of the pump in the free space area MNBCPQ, thereby eliminating the antagonistic force exerted on said zone. As a result, the thrusting force exerted on the turbine by the fluid remains intact. As the fluid leaves the pump, it is axially reinjected at a relative speed W 2p into a tank ( 4 ) for resupplying the turbine. There is therefore an energy exchange between the pumps and the turbine that form a closed circuit, the entire system being driven by a motor ( 10 ). It is shown that the thrust force P=(½) pπω 2 r 4 ; p being the density of the centrifuged fluid in en Kg/m 3 ; ω being the angular speed of the turbine in rad/s; and r its radius in metres and P in Newtons. The calculation shows that the amount of thrust generated is very high; said thruster can be used to generate mechanical energy anywhere in space, and especially to drive the most highly efficient flying machines.

1 . An ecological power unit characterized in that it comprises a special turbine of the Francis type, from where the fluid is axially ejected to the outlet of the blade with a relative velocity, W 2t , and is collected in a free space (without centrifuged fluid) of a straight radial Pump in order to be axially reinjected with a relative velocity, W 2p  into an immobile tank in order to be resupplied to the Turbine via distributors with an absolute velocity C 1t  with the pressure P 1t , thus forming the closed circuit in a sealed wall, the Turbine Pump unit being actuated by a motor coupled to a common shaft. 
     
     
         2 . A power unit according to  claim 1  characterized in that the relative axial velocity, W 2t  (or W 1p , relative velocity at the inlet of the Pump) is equal to the circumferential velocity, r×ω, and it is the same as the relative axial velocity at the outlet of the Pump, W 2p . 
     
     
         3 . A power unit according to  claims 1  characterized in that the absolute velocity, C 1t  at the inlet of the Turbine with a pressure, P 1t , ensures, first, a given flow rate and, second, overcoming the centrifugal force imposed by the corresponding rotation of the fluid. 
     
     
         4 . A power unit according to  claim 3  characterized in that the radius of the hub at the outlet of the Turbine, r 0  is equal or greater than 37% of the radius of the Turbine outlet, r; in order to avoid overlap between the current threads in the free space zone of the Pump. 
     
     
         5 . A power unit according to  claim 4  characterized in that the blade of the Turbine could have the form according to the conditions of the fluid flow. 
     
     
         6 . A power unit according to  claim 1  characterized in that the bottom of the Turbine is equipped with sealing fins in order to separate the centrifuged fluid from the common shaft communicating towards the exterior. 
     
     
         7 . A power unit according to  claim 1  characterized in that the bottom of the Pump comprises a port for the taking of the static pressure of the centrifuged fluid, and regulating it if necessary. 
     
     
         8 . A power unit according to  claim 7  characterized in that the bottom of the Pump, in the free space zone, comprises two ports whose opening is controlled by two solenoid valves that communicate with the cooling circuit towards the exterior. 
     
     
         9 . A power unit according to  claim 1  characterized in that the contact surfaces with the fluid flow are coated with a layer of PTFE (Teflon) in order to reduce the friction.