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Title: Gas powered fluid gun with recoil mitigation

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.

Inventors:
;
Publication Date:
Research Org.:
SNL-A (Sandia National Laboratories, Albuquerque, NM (United States))
Sponsoring Org.:
USDOE
OSTI Identifier:
1108604
Patent Number(s):
8,579,209
Application Number:
12/948,801
Assignee:
Sandia Corporation (Albuquerque, NM) SNL-A
DOE Contract Number:
AC04-94AL85000
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Grubelich, Mark C, and Yonas, Gerold. Gas powered fluid gun with recoil mitigation. United States: N. p., 2013. Web.
Grubelich, Mark C, & Yonas, Gerold. Gas powered fluid gun with recoil mitigation. United States.
Grubelich, Mark C, and Yonas, Gerold. 2013. "Gas powered fluid gun with recoil mitigation". United States. doi:. https://www.osti.gov/servlets/purl/1108604.
@article{osti_1108604,
title = {Gas powered fluid gun with recoil mitigation},
author = {Grubelich, Mark C and Yonas, Gerold},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 2013,
month =
}

Patent:

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  • 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.
  • A gas powered fluid gun for propelling a stream or slug of a fluid at high velocity toward a target. Recoil mitigation is provided by a cavitating venturi 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.
  • This patent describes a fluid-powered broken-link mechanism for an internal combustion engine, the engine having a housing, a source of fluid which is adapted to be pressurized only during engine operation, and a fuel quantity control member movable in both a fuel-increasing direction to increase the quantity of fuel supplied to the engine during each combustion cycle and in a fuel-decreasing direction to decrease the quantity of fuel supplied to the engine during each combustion cycle. It also comprises a governor controlling the position of the fuel quantity control member, and an override means for selectively overriding the governor duringmore » engine operation to prevent movement of the fuel quantity control member in the fuel-increasing direction when the ratio of air-to-fuel supplied to the engine for combustion falls below a preselected value. The fluid-powered broken-link mechanism is adapted to be operatively linked between the override means and the fuel quantity control member and comprises a first lever having a shaft portion adapted to be rotatively mounted within the housing and an arm adapted to swing into contact with the fuel quantity control member; a second lever adapted to be pivotally connected to the override means and being rotatively mounted on the shaft portion.« less
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  • Concentrated sunlight impinges on a large area photovoltaic device which is bonded to a highly pliable and thermally and electrically conductive structured copper strain relieving member; the lower face of the structured copper is sealed to a fluid cooled metal heat sink. Large power densities of sunlight are absorbed without appreciable temperature rise. The structured copper accommodates to the difference in expansion between the metal heat sink and the semiconductor wafer. Three embodiments utilize a single planar junction diode, an interdigitated diode, and series connected isolated junction diodes.