Accession Number:

ADD020217

Title:

Supercavitating Projectile with Propulsion and Ventilation Jet

Descriptive Note:

Patent application, Filed 25 Apr 2005

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s):

Report Date:

2005-09-14

Pagination or Media Count:

15.0

Abstract:

A supercavitating projectile is disclosed and includes a combustion chamber, a forward-directed jet nozzle and a comparatively larger gas ductrear-directed jet nozzle. The combustion chamber is filled with a propellant having a hollowed core. The core serves as a pathway to fluidly allow combustion gases to the jet nozzles. In operation, the propellant combusts to form gasses forced forward through the forward-directed nozzle to generate a virtual cavitator in the form of a ventilation gas bubble. Combusted gasses are also forced out the rear-directed nozzle forming a propulsion jet. The projectile therefore uses the rear-directed jet to maintain a cruise velocity approximate to the launch velocity and employs a source of ventilation gas using the forward-directed jet for supercavitating of the projectile.

Subject Categories:

  • Underwater Ordnance
  • Marine Engineering

Distribution Statement:

APPROVED FOR PUBLIC RELEASE