Gas powered fluid gun with recoil mitigation

DWPI Title: Gas powered fluid gun system for propelling fluid such as stream and slug at high velocity towards target, has recoil mitigation device which intercepts rearward-moving stream of fluid exiting from rear end of gun barrel
Abstract: A gas powered fluid gun for propelling a stream or slug of a fluid at high velocity toward a target. Recoil mitigation is provided that reduces or eliminates the associated recoil forces, with minimal or no backwash. By launching a quantity of water in the opposite direction, net momentum forces are reduced or eliminated. Examples of recoil mitigation devices include a cone for making a conical fluid sheet, a device forming multiple impinging streams of fluid, a cavitating venturi, one or more spinning vanes, or an annular tangential entry/exit.
Use: Gas powered fluid gun system for propelling fluid such as stream and slug at high velocity towards target.
Advantage: The energy stored in the gas can be accumulated over a long period of time, so that the minimal peak power input can be required to pressurize the gas. When the fluid is rapidly expelled from the device by the gas, the high peak powers can be realized without requiring the burden of large heavy pumps and power sources. The fluid speed can be accurately controlled by regulating the gas pressure. The valves can be used to control the mass of fluid delivered to the target.
Novelty: The system (1) has a gun barrel (8) which conveys fluid into a central bore. A fluid storage tank (17) contains fluid pressurized with gas at pressure greater than ambient pressure. A fluid supply line (22) supplies pressurized fluid (14) from fluid storage tank to an opening in side of gun barrel. A fluid ejection valve (20) controls flow of pressurized fluid from fluid storage tank to opening in side of gun barrel. A recoil mitigation device intercepts rearward-moving stream of fluid exiting from rear end of gun barrel and changes direction of rearward-moving stream.
Filed: 11/18/2010
Application Number: US2010948801A
Tech ID: SD 10098.1
This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention.
Data from Derwent World Patents Index, provided by Clarivate
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