Increased aperture homing cavitator

Details Increased aperture homing cavitator Increased aperture homing cavitator

2006-02-10

2009-06-02

Pihulic, Dan (Department: 3662)

Communications, electrical: acoustic wave systems and devices

Signal transducers

Underwater type

Reexamination Certificate

active

07542377

ABSTRACT:
Various exemplary embodiments of an increased aperture homing cavitator are disclosed. In one exemplary embodiment, a supercavitating body may include, e.g., but may not be limited to, a cavitator assembly having a front end and a back end, and having a shape operative to generate a concave cavity; an acoustical homing array coupled to the cavitator assembly; an afterbody coupled to the back end; a thruster coupled to the afterbody; and a ventilation system disposed within the afterbody, operative to supply gas to, and to maintain pressure within the cavity. In an exemplary embodiment, the size of the cavitator may be increased without a significant attendant increase in drag, thereby enabling a homing array of increased size and aperture.

REFERENCES:
patent: 7453769 (2008-11-01), Kirschner et al.
patent: 2007/0077044 (2007-04-01), Kirschner et al.
patent: 2008/0002526 (2008-01-01), Kirschner et al.
Ihor Nesteruk, “The Problems of Drag Reduction in High Speed,” The International Summer Scientific School, High Speed Hydrodynamics, Jun. 2002, Cheboksary, Russia.
Ihor Nesteruk, “Sub- and Supersonic Shapes Without Separation and Cavitation,” exact date unknown, Kyiv, Ukraine, included as an Appendix to U.S. Appl. No. 60/651,624, filed Feb. 11, 2005.
Ihor Nesteruk, “Experimental Investigations of Concave Cavities, ” exact date unknown, included as an Appendix to U.S. Appl. No. 60/651,624, filed Feb. 11, 2005.

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