EP0352161B1 - Dispositif de guidage-pilotage d'un engin comportant une tuyère mobile - Google Patents

Dispositif de guidage-pilotage d'un engin comportant une tuyère mobile Download PDF

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Publication number
EP0352161B1
EP0352161B1 EP89401888A EP89401888A EP0352161B1 EP 0352161 B1 EP0352161 B1 EP 0352161B1 EP 89401888 A EP89401888 A EP 89401888A EP 89401888 A EP89401888 A EP 89401888A EP 0352161 B1 EP0352161 B1 EP 0352161B1
Authority
EP
European Patent Office
Prior art keywords
guiding
nozzle
steering device
steering
nozzle unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP89401888A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0352161A1 (fr
Inventor
René Thouron
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Thomson Brandt Armements SA
Original Assignee
Thomson Brandt Armements SA
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Filing date
Publication date
Application filed by Thomson Brandt Armements SA filed Critical Thomson Brandt Armements SA
Publication of EP0352161A1 publication Critical patent/EP0352161A1/fr
Application granted granted Critical
Publication of EP0352161B1 publication Critical patent/EP0352161B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B10/00—Means for influencing, e.g. improving, the aerodynamic properties of projectiles or missiles; Arrangements on projectiles or missiles for stabilising, steering, range-reducing, range-increasing or fall-retarding
    • F42B10/60—Steering arrangements
    • F42B10/66—Steering by varying intensity or direction of thrust
    • F42B10/663—Steering by varying intensity or direction of thrust using a plurality of transversally acting auxiliary nozzles, which are opened or closed by valves

Definitions

  • the invention relates to a device for guiding-piloting by gas jets by means of at least one nozzle movable in rotation in order to create one or more thrust forces allowing the guiding of a machine in a determined direction.
  • a guided vehicle comprises in particular propulsion means operating on all or part of the trajectory of the vehicle, means intended to measure the deviations of the trajectory of this vehicle relative to the position of a designated objective and guide means. steering to correct discrepancies.
  • the correction of the trajectory deviations of a guided machine can be obtained by the application at a determined point of the machine, of a pushing force; this thrust force can be created by aerodynamic devices or by pyrotechnic devices such as gas jets.
  • a device for guiding-piloting by gas jets intended to modify the trajectory of a machine comprises a source of energy which generates a flow of gas, a set of one or more nozzles distributed over the body of the machine and a means allowing to direct the gas flow in accordance with piloting orders available on board the craft so as to create a resulting thrust force of determined size and direction.
  • the object of the invention is to remedy these drawbacks.
  • German patent application DE-A-3 108 283 which describes a device for guiding and / or piloting a machine according to the preamble of claim 1.
  • This solution consists in using several nozzles. adjustable adjusters fixed on cylindrical sleeves which are mounted on a gas pipe. central so as to be able to pivot around axes perpendicular to the axis of the machine.
  • the invention overcomes the aforementioned drawbacks by proposing a guidance-piloting device allowing a thrust force, coming from a continuous gas flow inside a fixed nozzle, on a nozzle block, obtain, through the rotation of the nozzle, through the nozzle block rotating about an axis parallel to that of the machine, different movements of the machine according to the orientation of the force of thrust, the latter having at least one radial component, that is to say located in a plane perpendicular to the longitudinal axis of the machine.
  • the invention therefore relates to a device for guiding and / or piloting a machine, as defined in the claims.
  • FIG. 1 represents a longitudinal section of a machine equipped with the guidance-piloting device according to the invention.
  • This device is generally placed near a gas generator which feeds the rotating movable nozzles, it can be placed, depending on the desired effect, at the front, in the center of gravity or at the rear of the machine, the device carrying out guidance when a change of trajectory is made and control when a stabilization is carried out around the center of gravity.
  • the guidance-piloting device is carried by a support body 1; this support body 1 is, for example, an annular block provided with one or more movable nozzle blocks 2 as well as with the rotation device (s); it is placed opposite the gas generator not shown in this figure.
  • the movable nozzle block 2 consists of three elements (a nozzle block, one or more seals, a rotation device) not visible in this figure, but which will be detailed in FIG. 2.
  • This nozzle block is in rotation with a control piston 3 by means of the rotation.
  • This control piston 3 is perpendicular to the nozzle block and allows it to be rotated by means of the rotation device. Indeed, the angular clearance obtained is of great amplitude (close to 180 °) thus allowing great freedom of guidance.
  • This control piston 3 has at each of its ends chambers 18, for example, cylindrical with or without seals; the latter, after operating an energy source, are at a determined pressure which can vary thanks to distributors 6 placed on each side of the chambers of the control pistons 3.
  • These distributors 6 make it possible to create a vacuum by venting of one or other of the chambers of the control piston 3 which is then driven in a translational movement driving the nozzle block in the desired position thanks in particular to a rack 22 whose piston control 3 is provided and with the device for rotating between the nozzle block and the control piston.
  • These distributors 6 are, for example, one-way distributors with mechanical closure and opening by control of a coil. It is possible to control this coil by a servo loop in relation to position sensors, not shown in this figure but fixed to the rear of the support body 1, making it possible to detect the portion of the nozzle block 2 and to position the nozzle block 2 with respect to an opening angle chosen by the guidance-piloting mode for the orientation of the thrust force.
  • the rotation device described above is a pneumatically controlled device, but an electric motor can be used which rotates the nozzle block either directly or through a gear system to eliminate parasitic torques due to mounting or a mechanical control connecting several nozzles to the same electric or pneumatic actuator.
  • the guidance-control device located around the main axis of the machine allows the use of a load military, for example a hollow charge, since the latter surrounds the free space 10.
  • the nozzle block of the guidance-piloting device is rotated about an axis parallel to the longitudinal axis of the machine, but this guidance-piloting device can be produced using planes of different inclinations for the nozzle block or for the nozzle fixed to the nozzle block, the main characteristic being the fixed position of the nozzle on the nozzle block.
  • FIG. 2 represents a section A according to FIG. 1, of the guidance-piloting device according to the invention.
  • the support body 1 supports the nozzle block 2 composed of several elements. These elements are shown in isolation in Figure 3.
  • the nozzle block 2 is a stepped cylinder with a central blind hole 8 which allows the flow of gas from, for example, a gas generator to a nozzle 14 thanks to a neck 9 of the nozzle 14; this neck 9 of the nozzle can be cylindrical or oblong for reasons of space.
  • the nozzle 14 is fixed to the nozzle block 2 in connection with the blind central hole 8 to avoid the sealing problems caused by the use of a pivoting nozzle.
  • a rotation device constituted, for example, by a toothed wheel 11 mounted on the nozzle block 2 by a fixed link; this toothed wheel 11 allows the connection with the control piston 12 forming the pneumatic control device described above.
  • the device provided with an electric motor 13 is also shown in dotted lines in this FIG. 3, it is obvious that the two devices are not used at the same time.
  • a needle stopper 4 whose role is to absorb the force due to the pressure of the gas generator which is exerted on the nozzle block when the generator is started. gas.
  • a position sensor 7 is placed at the rear of the support body 1 to make it possible to detect the position of the nozzle 14 and to create or not a control loop to obtain a progressive rotation.
  • the guidance-piloting device can also be used from stop to stop with angle openings, for example, of 10 °, 20 °, 30 °, 60 °, 90 °, 120 ° not requiring a control loop but directly given by a mechanism developed according to the guidance-piloting chosen. In all of this guidance-piloting device, it is preferable to use seals having different functions. One of them 15 makes it possible, thanks to its extensibility, to let the gases coming from the gas generator pass, others, not shown, isolate the leaks and the pressure losses towards the nozzle and the control part of the nozzle block .
  • a filter 5 is placed in the gas distribution system. It is shown in the diagram in FIG. 4 and makes it possible to retain the particles existing in the gas, the dimensions of which can compromise the operation of the solenoid valves.
  • the gases are brought inside the filter 5, for example made of porous ceramic, through the end 19. Outlets 20 allow the gas flow to continue on its path and to be recovered, filtered, at the end 21 after passing through various pipes.
  • FIG. 5 shows a cross section C of Figure 1 of a distributor 6 allowing the passage or not of a gas stream from a gas generator.
  • This distributor 6 is equipped with a ball 17 which, when the distributor coil is excited by an order from the on-board pilot is drawn into the distributor 6.
  • a free space is then produced and causes an escape of a gas flow outwards creating a dispersion inside one of the chambers of the control piston which moves in translation. This movement triggers a rotational movement of the nozzle block in a determined position, the order of end of excitation of the coil given by the on-board pilot via position sensors.
  • This guiding-piloting device allows a continuous flow of the gas flow inside the nozzle because of the displacement of the nozzle without sealing its neck thus allowing the gas flow to pass.
  • This continuous flow gives an orientation (of the machine) capable of being smooth and avoids the "jackhammer” phenomenon encountered in other mechanisms.
  • the guiding-piloting device can be used according to the guiding-piloting law with one or more nozzle blocks making it possible to effect yaw and pitch movements with or without roll. The difference between these control systems being obtained by the number of nozzle blocks used, but also by the opening angle given to these nozzle blocks. It is possible to envisage the application of this piloting device in fields other than that of armaments, for example, the space field where orientation problems are frequent and difficult to achieve.

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
  • Nozzles (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
EP89401888A 1988-07-22 1989-06-30 Dispositif de guidage-pilotage d'un engin comportant une tuyère mobile Expired - Lifetime EP0352161B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8809941 1988-07-22
FR8809941A FR2634548B1 (enrdf_load_stackoverflow) 1988-07-22 1988-07-22

Publications (2)

Publication Number Publication Date
EP0352161A1 EP0352161A1 (fr) 1990-01-24
EP0352161B1 true EP0352161B1 (fr) 1993-05-19

Family

ID=9368691

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89401888A Expired - Lifetime EP0352161B1 (fr) 1988-07-22 1989-06-30 Dispositif de guidage-pilotage d'un engin comportant une tuyère mobile

Country Status (4)

Country Link
US (1) US5016836A (enrdf_load_stackoverflow)
EP (1) EP0352161B1 (enrdf_load_stackoverflow)
DE (1) DE68906606T2 (enrdf_load_stackoverflow)
FR (1) FR2634548B1 (enrdf_load_stackoverflow)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2685467B1 (fr) * 1991-12-23 1994-02-04 Thomson Brandt Armements Dispositif de separation et de freinage aerodynamique de l'etage propulseur d'un missile.
SE521445C2 (sv) * 2001-03-20 2003-11-04 Bofors Defence Ab Sätt att synkronisera fenutfällningen vid en fenstabiliserad artillerigranat samt en i enlighet därmed utformad artillerigranat
GB2460381B (en) * 2007-03-14 2012-01-25 Colin Gilbert Tobeck A system for manipulating a fluid cannon
FR2970702B1 (fr) * 2011-01-26 2013-05-10 Astrium Sas Procede et systeme de pilotage d'un engin volant a propulseur arriere
US9068808B2 (en) * 2013-01-17 2015-06-30 Raytheon Company Air vehicle with bilateral steering thrusters
US10030951B2 (en) * 2013-06-04 2018-07-24 Bae Systems Plc Drag reduction system
CN111569314B (zh) * 2020-05-30 2021-07-30 山东同其数字技术有限公司 一种森林灭火导弹

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1147144B (de) * 1958-09-08 1963-04-11 Ferdinand Metzler Strahlangetriebener Flugkoerper
US3328962A (en) * 1965-05-20 1967-07-04 Curtiss Wright Corp Orientation control system for space vehicles and ballistic missiles
US3446436A (en) * 1966-11-29 1969-05-27 Thiokol Chemical Corp Rocket thrust nozzle system
FR2469345A1 (fr) * 1979-11-09 1981-05-22 Thomson Brandt Procede de pilotage et de guidage de projectiles en phase terminale et projectiles comportant les moyens de mise en oeuvre de ce procede
DE3108283A1 (de) * 1981-03-05 1982-09-16 Messerschmitt-Bölkow-Blohm GmbH, 8000 München "lenkflugkoerper"
FR2504085A1 (fr) * 1981-04-21 1982-10-22 Thomson Brandt Dispositif de pilotage par jets de gaz et projectile comprenant un tel dispositif
FR2508414B1 (fr) * 1981-06-30 1985-06-07 Thomson Brandt Dispositif de pilotage par jets de gaz pour engin guide
DE3138869C2 (de) * 1981-09-30 1984-07-12 Messerschmitt-Bölkow-Blohm GmbH, 8000 München "Lenkflugkörper"
FR2536720A1 (fr) * 1982-11-29 1984-06-01 Aerospatiale Systeme pour le pilotage d'un missile au moyen de jets gazeux lateraux et missile comportant un tel systeme
DE3317583C2 (de) * 1983-05-13 1986-01-23 Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn Vorrichtung mit einer von einer Treibmittelquelle versorgten Düsenanordnung
DE3332415A1 (de) * 1983-09-08 1985-03-28 Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn Steuerbares stroemungsumlenksystem
DE3429798C1 (de) * 1984-08-13 1985-12-12 Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn Vorrichtung zur Korrektur der Flugbahn eines Geschosses
DE3519892C2 (de) * 1985-06-04 1987-04-23 Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn Brems- und Freigabevorrichtung für einen Drehdüsenkörper zur Lenkung eines Flugkörpers

Also Published As

Publication number Publication date
DE68906606T2 (de) 1993-12-09
DE68906606D1 (de) 1993-06-24
EP0352161A1 (fr) 1990-01-24
FR2634548A1 (enrdf_load_stackoverflow) 1990-01-26
US5016836A (en) 1991-05-21
FR2634548B1 (enrdf_load_stackoverflow) 1993-09-03

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