 Textile yarn carrier |
| This invention relates to tubular carriers of textile yarn packages particularly used with winding ... |
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| Spool for filament winder |
| It is therefore an object of the present invention to provide an improved spool for use in an ... |
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| Yarn tube with pickup groove accommodating left hand and right hand pickup |
| The present invention proposes a tube pickup groove specifically configured to both incorporate a ... |
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| Reusable winding tube |
| OF A PREFERRED EMBODIMENT Turning now to the drawings, and particularly to FIG. 1, there is ... |
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| Reusable high speed winding tube |
| OF PREFERRED EMBODIMENT Turning now to the drawings, and particularly to FIG. 1, there is ... |
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| Yarn winding apparatus and method |
| OF THE PREFERRED EMBODIMENTS The winding apparatuses, which are illustrated in FIGS. 1-4, 5, 6 and ... |
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| Textile core having improved start-up groove |
| In the parent of this application U.S. Ser. No. 07/893,408, now U.S. Pat. No. 5,211,354 certain ... |
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| Hooks and loop fastener attached to a bobbin by ultrasonic welding |
| OF THE PREFERRED EMBODIMENT The cylindrical support 10 for textile material, partly shown in the ... |
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| Textile tube with start-up feature |
| These and other needs are provided by the textile tube of the present invention, which provides a ... |
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System for steering a missile by means of lateral gas jets
| Details |
Inventors: Morgand, Jean-Pierre;
Assignee: Aerospatiale Societe Nationale Industrielle (Paris, FR)
Primary Examiner: Jordan; Charles T.
Assistant Examiner:
Attorney, Agent or Firm: Marshall, O'Toole, Gerstein, Murray & Bicknell
A system is disclosed for steering a missile by means of gas jets, comprising a gas generator connectable to at least a pair of lateral nozzles via rotary valving means, movable under the action of drive means and controlling the passage of the gases through said nozzles wherein with each nozzle is associated an individual rotary valving member; each valving member is controlled in rotation by the piston of a jack, one chamber of which receives a part of the gas generated by said gas generator, the position of said piston being controlled by controlling the flowrate of said gas through said chamber; the chambers of said jacks, opposite those receiving said gas flows, are connected together by a coupling circuit containing a pressurized incompressible fluid; and the volume of said pressurized incompressible fluid is chosen so that one of the valving members may be in the completely open position of the associated nozzle, whereas all the other valving members completely close the nozzles which correspond thereto. |
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DETAILED DESCRIPTION The object of the present invention is to provide a system of the above mentioned type having both valving means with low inertia and valving control without oscillations.
For this, according to the invention, the system for steering a missile by means of gas jets, comprising a gas generator connectable to at least a pair of lateral nozzles via rotary valving members, movable under the action of drive means and controlling the passage of the gases through said nozzles is remarkable in that: with each nozzle is associated an individual rotary valving member; each valving member is controlled in rotation by the piston of a jack, one chamber of which receives a part of the gas generated by said gas generator, the position of said piston being controlled by controlling the flowrate of said gas through said chamber; the chambers of said jacks, opposite those receiving said gas flows, are connected together by a coupling circuit containing a pressurized incompressible fluid; and the volume of said pressurized incompressible fluid is chosen so that one of the valving members may be in the completely open position of the associated nozzle, whereas all the other valving members completely close the nozzles which correspond thereto.
Thus, each valving member may have low inertia, and the position of each controlled valving member is determined, without oscillations, by the corresponding controlled jack, the non controlled jacks taking up a given position by distribution of said pressurized incompressible fluid.
In order to reduce the inertia of the valving means as much as possible, each nozzle has an oblong section, at least in the vicinity of its neck cooperating with a valving member.
Thus, each valving member may be formed by a shaft fast with a projecting radial plate whose longitudinal end face cooperates with the neck of the corresponding nozzle.
Advantageously, in order to reduce the torque exerted by the gases on the valving means, tending to oppose opening thereof, the lateral face of the radial plate, opposite the neck of the nozzle in the open position of said valving means, is concave and curved
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