Stagnation pressure activated fuel release mechanism for hypersonic projectiles

Title: Stagnation pressure activated fuel release mechanism for hypersonic projectiles

Full Record
Other Related Research

Abstract

A propulsion-assisted projectile has a body, a cowl forming a combustion section and a nozzle section. The body has a fuel reservoir within a central portion of the body, and a fuel activation system located along the central axis of the body and having a portion of the fuel activation system within the fuel reservoir. The fuel activation system has a fuel release piston with a forward sealing member where the fuel release piston is adapted to be moved when the forward sealing member is impacted with an air flow, and an air-flow channel adapted to conduct ambient air during flight to the fuel release piston.

Inventors:

Cartland, Harry E ^[1]; Hunter, John W ^[2]

Menlo Park, CA
San Diego, CA

Issue Date:: 2003-01-01

Research Org.:: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

OSTI Identifier:: 875121

Patent Number(s):: 6536350

Assignee:: The United States of America as represented by the United States Department (Washington, DC)

DOE Contract Number:: W-7405-ENG-48

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: stagnation; pressure; activated; fuel; release; mechanism; hypersonic; projectiles; propulsion-assisted; projectile; cowl; forming; combustion; section; nozzle; reservoir; central; portion; activation; located; axis; piston; forward; sealing; adapted; moved; impacted; air; flow; air-flow; channel; conduct; ambient; flight; air flow; ambient air; central portion; release mechanism; /102/60/244/

Citation Formats


                    Cartland, Harry E, and Hunter, John W. Stagnation pressure activated fuel release mechanism for hypersonic projectiles.  United States: N. p., 2003. 
        Web.

Copy to clipboard


                    Cartland, Harry E, & Hunter, John W. Stagnation pressure activated fuel release mechanism for hypersonic projectiles.  United States.

Copy to clipboard


                    Cartland, Harry E, and Hunter, John W. Wed .  
        "Stagnation pressure activated fuel release mechanism for hypersonic projectiles".  United States.  https://www.osti.gov/servlets/purl/875121.

Copy to clipboard


                    
@article{osti_875121,

  title        = {Stagnation pressure activated fuel release mechanism for hypersonic projectiles},

  author       = {Cartland, Harry E and Hunter, John W},

  abstractNote = {A propulsion-assisted projectile has a body, a cowl forming a combustion section and a nozzle section. The body has a fuel reservoir within a central portion of the body, and a fuel activation system located along the central axis of the body and having a portion of the fuel activation system within the fuel reservoir. The fuel activation system has a fuel release piston with a forward sealing member where the fuel release piston is adapted to be moved when the forward sealing member is impacted with an air flow, and an air-flow channel adapted to conduct ambient air during flight to the fuel release piston.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2003},

  month        = {1}

}

Copy to clipboard

Patent:

View Patent

Save / Share:

Export Metadata

Save to My Library

Similar Records in DOE Patents and OSTI.GOV collections:

Upflow bioreactor with septum and pressure release mechanism

Patent Hansen, Conly L.; Hansen, Carl S.; Pack, Kevin; ...

An upflow bioreactor includes a vessel having an inlet and an outlet configured for upflow operation. A septum is positioned within the vessel and defines a lower chamber and an upper chamber. The septum includes an aperture that provides fluid communication between the upper chamber and lower chamber. The bioreactor also includes means for releasing pressure buildup in the lower chamber. In one configuration, the septum includes a releasable portion having an open position and a closed position. The releasable portion is configured to move to the open position in response to pressure buildup in the lower chamber. In themore »« less
Full Text Available
Low pressure stagnation flow reactor with a flow barrier

Patent Vosen, Steven R [1306 Evelyn Ave., Berkeley, CA 94702]

A flow barrier disposed at the periphery of a workpiece for achieving uniform reaction across the surface of the workpiece, such as a semiconductor wafer, in a stagnation flow reactor operating under the conditions of a low pressure or low flow rate. The flow barrier is preferably in the shape of annulus and can include within the annular structure passages or flow channels for directing a secondary flow of gas substantially at the surface of a semiconductor workpiece. The flow barrier can be constructed of any material which is chemically inert to reactive gases flowing over the surface of themore » semiconductor workpiece.« less
Full Text Available
Release mechanism utilizing shape memory polymer material

Patent Lee, Abraham P [Walnut Creek, CA]; Northrup, M Allen [Berkeley, CA]; Ciarlo, Dino R [Livermore, CA]; ...

Microfabricated therapeutic actuators are fabricated using a shape memory polymer (SMP), a polyurethane-based material that undergoes a phase transformation at a specified temperature (Tg). At a temperature above temperature Tg material is soft and can be easily reshaped into another configuration. As the temperature is lowered below temperature Tg the new shape is fixed and locked in as long as the material stays below temperature Tg. Upon reheating the material to a temperature above Tg, the material will return to its original shape. By the use of such SMP material, SMP microtubing can be used as a release actuator formore »« less
Full Text Available
Microfabricated therapeutic actuators and release mechanisms therefor

Patent Lee, Abraham P [Walnut Creek, CA]; Fitch, Joseph P [Livermore, CA]; Schumann, Daniel L [Concord, CA]; ...

Microfabricated therapeutic actuators are fabricated using a shape memory polymer (SMP), a polyurethane-based material that undergoes a phase transformation at a specified temperature (Tg). At a temperature above temperature Tg material is soft and can be easily reshaped into another configuration. As the temperature is lowered below temperature Tg the new shape is fixed and locked in as long as the material stays below temperature Tg. Upon reheating the material to a temperature above Tg, the material will return to its original shape. By the use of such SMP material, SMP microtubing can be used as a retaining/release actuator formore »« less
Full Text Available
Method of forming through substrate vias (TSVs) and singulating and releasing die having the TSVs from a mechanical support substrate

Patent Okandan, Murat; Nielson, Gregory N

Accessing a workpiece object in semiconductor processing is disclosed. The workpiece object includes a mechanical support substrate, a release layer over the mechanical support substrate, and an integrated circuit substrate coupled over the release layer. The integrated circuit substrate includes a device layer having semiconductor devices. The method also includes etching through-substrate via (TSV) openings through the integrated circuit substrate that have buried ends at or within the release layer including using the release layer as an etch stop. TSVs are formed by introducing one or more conductive materials into the TSV openings. A die singulation trench is etched atmore »« less
Full Text Available

Similar Records