SCREW ROCKET NOZZLE
A screw rocket nozzle may include a disc shaped nozzle body and a spiral flow path having an inlet and an outlet. In some examples the flow path is radial with the inlet positioned at a higher pressure region than the outlet. In other examples the flow path is axial with the inlet positioned at a lower pressure region than the outlet. The nozzle may rotate about its center as a turbine in an axial configuration.
1 . A screw rocket nozzle comprising:
a disc shaped nozzle body having an interior portion and an exterior portion;
a nearly complete or complete radial spiral flow path having an inlet and an outlet;
wherein:
(1) the inlet is positioned at a first pressure region on the interior portion;
(2) the outlet is positioned at a second pressure region near the exterior portion; and,
(3) the first pressure region is a higher pressure region than the second pressure region.
2 . The screw rocket nozzle of claim 1 wherein:
the disc shaped nozzle body has a diameter;
the inlet is positioned near a center of the diameter;
the first pressure region is a highest pressure region of the nozzle; and,
the second pressure region is a lowest pressure region of the nozzle.
3 . The screw rocket nozzle of claim 2 wherein:
the nozzle is a De Laval expansion type nozzle.
4 . The screw rocket nozzle of claim 3 wherein:
the nozzle rotates about its center as a turbine in an axial configuration.
5 . The screw rocket nozzle of claim 4 wherein:
the nozzle is configured as a radial turbine; and,
the nozzle includes a stator.
6 . A screw rocket nozzle comprising:
a disc shaped nozzle body;
a nearly complete or complete axial spiral flow path having an inlet and an outlet;
wherein:
(1) the inlet is positioned at a first pressure region;
(2) the outlet is positioned at a second pressure region;
(3) the first pressure region is a lower pressure region than the second pressure region; and,
(4) the nozzle is a De Laval expansion type nozzle.
7 . The screw rocket nozzle of claim 6 wherein:
the first pressure region is a lowest pressure region of the nozzle; and,
the second pressure region is a highest pressure region of the nozzle.
8 . The screw rocket nozzle of claim 7 wherein:
the nozzle rotates about its center as a turbine in an axial configuration.
9 . The screw rocket nozzle of claim 8 wherein:
the nozzle is configured as an axial turbine; and,
the nozzle includes a stator.