DE102017129941A1 - Valve for a controllable transverse thrust engine - Google Patents

Abstract

Valve (10) for a controllable transverse thrust engine (1) for missiles with a nozzle (2), with a movable valve body (3), with a drive unit (5), characterized in that the valve body (3) via at least one ceramic body (4 ) is connected to the drive unit (5).

Description

The invention relates to a valve for a controllable transverse thrust engine for missiles according to the preamble of claim 1 and claim 2 and to such a valve having transverse thrust engine according to the preamble of claim 12 and to a missile having a corresponding valve having transverse thrust engine after the The preamble of claim 13.

State of the art:

By means of a thrust engine, a rocket or missile is launched and / or transported after takeoff. The nozzle of a thrust engine of a rocket or a missile serves u.a. the utilization of the fuel. The nozzle accelerates the gases produced during the combustion of the fuel as they exit the combustion chamber.

The exit velocity refers to the velocity of the gases as they reach the nozzle orifice. A parameter for the exit velocity is the spatial-geometric configuration of the nozzle and in particular the area ratio of nozzle throat to nozzle orifice.

As well as thrusters, transverse thrust engines also have nozzles that are operated by means of combustion gases that are produced during the combustion of fuel in the combustion chamber.

Nozzles of such thrust thrust engines, hereinafter referred to as thrust thrusters, are directed to effect thrust other than the longitudinal axis of the missile to be controlled; As a rule, the thrust is directed perpendicular to the longitudinal axis of the missile to be controlled. Thus transverse thrust engines also serve to build a lateral acceleration relative to the vertical longitudinal axis.

The use of such transverse thrust nozzles is functionally not limited to the actual transverse thrust engines, but is also suitable for use in thrusters, in particular thrusters for the cruise flight into consideration.

As a result, thrust engines and transverse thrust engines can be used in particular for changes in the attitude control and / or the path control of the missile.

Such shear thrust engines, which are initiated especially in the takeoff phase and in the Endanflugsphase (end game) phase of their missile, improve the maneuverability of the missile substantially.

Serve such transverse thrust nozzles for use in thrusters so they can be used especially in so-called upper stages and thus cause their change in position in orbit.

Such transverse thrust engines are known and in the German patent application DE 10 2016 101 560 A1 the applicant or in the DE 197 35 279 C1 described.

The Applicant makes the disclosure in the DE 10 2016 101 560 A1 also to the subject of the present disclosure.

For the purposes of the present disclosure, the term missile is understood to mean all airworthy objects, in particular rockets, spaceships, probes, aircraft, satellites, regardless of whether they are ground-based, airborne, person-supported, vehicle-supported or water-based.

Adjustable transverse thrust engines usually have a plurality of nozzles, which are often arranged radially and in particular Cartesian in or around the missile.

Control or control algorithms bring about the regulation or control of actuators, the nozzles or the valves which are in operative connection with the nozzles.

Under controllability in the sense of the present invention is also understood the controllability; Accordingly, the control is also understood as regulation.

The valves may be cold gas valves, but are often hot gas valves. The regulation or control influences an activation unit which is in operative connection with the respective transverse thrust nozzle and carries out the change of the attitude control or the path control of the missile.

The drive unit may include Stehruder or comparable components that contribute to changing the direction of the missile.

The regulation or implementation of measures for the change of direction of the missile often take place in milliseconds at extremely high temperatures. In elaborate investigations of the naturally destroyed components according to the intended use, the Applicant has found that problems that occur in practice in adhering to precise changes made to the attitude control or path control can be due to leaks in the control unit. These leaks can cause lead structural failure of the drive unit and thus complicate the changes to the attitude control or path control of the missile by pressing the transverse thrust nozzles at least, possibly even impossible.

Technical problem:

Based on these disadvantages of the prior art, it is therefore an object of the invention to obtain the control unit of the transverse thrust engines in the generation and execution of the changes to the attitude control or orbit control of the missile permanently functional.

An associated technical problem is to provide for a permanent and accurate compliance with the initiated by the transverse thrust nozzle changes the attitude control or trajectory control of the missile care.

In particular, it is desirable to be able to transmit the drive forces without restriction to the drive unit.

Furthermore, a low-cost, simple and easily manufacturable embodiment of the transverse thrust nozzles, their valves and the transverse thrust nozzles contained transverse thrust engines should be created so far.

These aspects of the technical problem are solved with a valve, a nozzle for an adjustable transverse thrust engine according to claim 1 and claim 2 and with such a nozzle having transverse thrust engine according to claim 12 and with such a transverse thrust engine having missile according to claim 13. Preferred embodiments are in described the subclaims.

Description of the invention:

The invention is based on the following summarized starting point and on the analysis of the set by the operation of the transverse thrust nozzles states and processes more complex, but especially u.a. extremely short processes at immense temperatures:

The controllable transverse thrust engines are powered by hot gases produced by combustion of the fuel in the combustion chamber of the missile, as these have a higher efficiency than cold gases.

The invention will be described below with reference to a transverse thrust engine or to a transverse thrust nozzle provided for such a transverse thrust engine. This description applies to all transverse thrust engines or transverse thrust nozzles used in a missile according to the invention.

The adjustable transverse thrust nozzle includes an arrangement of a valve. The valve has a valve body.

The valve body is arranged in the interior of the housing of the transverse thrust nozzle.

The valve is used to control the respective gas flow. The valve is preferably designed as a hot gas valve. It can be controlled by any suitable means, e.g. via electromagnetically actuated components.

The valve body is movable. In this case, the valve body can preferably be moved in both directions along its longitudinal axis. By this movable configuration of the valve body, the flow rate and the flow velocity of the combustion gases flowing around the valve body can be controlled.

When the valve body is moved in the direction of the discharge of the gas flow from the transverse thrust nozzle, the valve body of the valve approaches with its preferably conical, e.g. pointed cone-shaped, Complementärrabschnitt, also called head area, the convex course of the inner wall of the transverse thrust nozzle in the region of the nozzle neck. As a result, the cross section of the passage for the passage of the combustion gases changes, wherein the channel between the head portion of the valve body and the nozzle throat of the nozzle is arranged. Thus, the flow area between the nozzle, more specifically, between the nozzle throat of the nozzle and the valve body is changed by the movable valve body.

The change in cross section of the channel may result from a complete closure of the nozzle throat by the conical complementary portion or head portion of the valve body to a complete opening of the nozzle throat. Depending on the open or closed state of the flow cross-section channel, the flow around the valve body changes by means of the combustion gases.

The valve body of the valve is preferably designed as a so-called pintle configuration, also referred to as pin configuration, in which the pin or pin can close or open the nozzle neck of the transverse thrust nozzle.

Other nozzle types and valve configurations are also contemplated, e.g. in the embodiment as a seat hole nozzles, blind hole nozzles.

The valve body of the valve of the transverse thrust nozzle is further connected to the drive unit of the transverse thrust engine.

The movement of the valve body in its longitudinal axis is effected by the drive unit. The drive unit is in turn effected by an actuator. As a result, the change in the position control or path control is effected.

Regardless of the structural design of the nozzle or the valve and its valve body, the latter is flowed around upon initiation and execution of changes to the attitude control or web control of the hot combustion gases and thereby heated strongly.

For this reason, it is an aspect that first of all the material of the valve body of the valve is heat-resistant or constructed of a heat-resistant material.

Heat-resistant materials are, for example, heat-resistant metals, such as e.g. Molybdenum or titanium-zirconium-molybdenum. In the latter case, a high heat resistance up to about 1400 ° C with low thermal expansion is present, which generally leads to its preferred use in hot runner nozzles.

The physical properties of these metallic materials, however, include i.a. a high thermal conductivity. Depending on the sources of literature or data sheets from suppliers or manufacturers, for the metallic materials just mentioned by way of example with approximately W / (m × K) = 140 (20 ° C.) or W / (m × K) = approx. 130 (20 ° C) for titanium-zirconium-molybdenum and W / (mxK) = 138 (20 ° C) for molybdenum.

This good thermal conductivity of metallic materials means that also adjacent to the valve or to the valve body adjacent components, such as the drive unit, especially during prolonged operation of the nozzle also heat and often overheat. Excessive heating of the drive unit leads to the aforementioned leaks due to thermal expansion and ultimately to the structural failure of the drive unit, especially if this, as usual, consists of a less heat-resistant material.

It is therefore an essential aspect of the invention, the valve of the transverse thrust nozzle in such a way that it not only has sufficient heat resistance, but also directly or indirectly over such compared to metallic materials reduced thermal conductivity, the forwarding of heat or heat to adjacent components, such as the drive unit, sufficiently prevented.

A particularly preferred aspect is not only to provide a material for such a sufficient heat resistance, but at the same time design the valve constructively so that only a small contact surface is achieved through which the effect of heat dissipation, namely the transfer of heat, constructive. Such an embodiment has the advantage that a larger base of materials is available for use, so that in particular certain differences in the thermal conductivity of a corresponding material group can be accepted, of course, the goal is not disregarded, after which the material itself or In principle, the group of materials to which the material belongs should have improved material properties in terms of heat resistance and reduction of thermal conductivity.

For this purpose, the invention initially proposes specifically, the valve body of the valve of the transverse thrust nozzle directly or indirectly to design so that it has sufficient heat resistance and a reduced compared to metallic materials thermal conductivity, the forwarding of heat or heat to adjacent Components such as the drive unit, sufficiently prevented.

"Direct" in the sense of the above-mentioned explanation is intended to mean that the valve body itself has these properties.

"Indirectly" in the sense of the above-mentioned explanation is intended to mean that the valve body forms the constructional or structural basis for another component or for a further component, for further components or further components, which in turn is or are designed that it / they have sufficient heat resistance and a reduced compared to metallic materials thermal conductivity / have / prevent the transmission of heat or heat to adjacent components, such as the drive unit, sufficiently.

According to the invention, a body which conducts the heat poorly and is made of an inorganic and predominantly non-metallic material is provided. This material, referred to below as a ceramic material, may relate to the valve body itself or relate to a component that is independent of the actual valve body. The independent component may, for example, adjoin the valve body. By means of this ceramic material, excessive transfer of heat from the valve body to a component adjacent to the valve body, such as the drive unit, is reduced or even largely or completely excluded.

Among the inorganic and predominantly non-metallic materials which are used according to the invention depending on the configuration of the transverse thrust nozzle and requirements that can be placed on them, especially ceramic materials, but also inorganic glass or cement as an inorganic binder, with other inorganic substances used for the production of concrete. Within the meaning of the invention, the ceramic materials are preferred. Because glass, which is cheaper to manufacture in itself, has - depending on its design - compared to a ceramic material usually has a lower melting temperature.

Suitable ceramic materials are ceramic fiber materials, non-oxidic ceramic materials or oxidic ceramic materials or silicate ceramic materials.

In comparison with the metallic materials used in the prior art, the ceramic materials proposed according to the invention offer numerous positive properties, such as low density, high hardness, in particular high mechanical strength, dimensional stability, wear resistance, corrosion resistance, weather resistance Long storage of the missile, the predominantly low thermal conductivity and a high insulating capacity.

Particularly suitable is silicate ceramics. The materials of silicate ceramics include porcelain, steatite, cordierite and mullite. Because of relatively low sintering temperatures, good availability of the underlying raw materials, simple processes, silicate ceramics are relatively cheap. Silicate ceramics have high mechanical strength, good insulating properties and excellent resistance to chemical attack in a variety of ways.

Also suitable are oxide-ceramic materials, e.g. Alumina with high strength and hardness, temperature stability, high wear resistance and corrosion resistance even at high temperatures. These include zirconia with its high fracture toughness, high flexural and tensile strength, high wear resistance, corrosion resistance and lower thermal conductivity.

Also mixtures of ceramic materials are suitable. This applies in particular to mixtures of the mentioned groups of ceramic materials.

Mixtures, in particular of aluminum oxide and zirconium oxide, in particular in the embodiment as zirconium oxide-reinforced aluminum oxide, are well suited. An equally suitable ceramic material is aluminum titanate, a mixture of alumina and titania; it has a low thermal conductivity.

The above selection is only an example and not exhaustive, so that the skilled person will also think of other ceramic materials, especially their mixtures. These generally include high-performance ceramic or functional ceramic materials.

The skilled artisan will take into account when selecting suitable ceramic materials that some of them have a comparatively slightly higher thermal conductivity than others.

Ceramic materials with a slightly higher thermal conductivity include, for example, ceramics made of magnesium oxide or silicon carbide or aluminum nitride, which the person skilled in the art can nevertheless take into consideration, namely in particular when a small contact area in the region of the transition to the drive unit can be ensured in the nozzle Isolation can already be ensured in a wide range by providing a small contact surface. Already in this context, the embodiment of the constructive connection of the valve body to the drive unit via balls or the like which is described in more detail below is to be mentioned.

In the above-described "direct" embodiment of the heat resistance and the lower thermal conductivity, the valve body itself on the ceramic material or the mixture of ceramic materials or consists of this or this.

The valve body can consist entirely of a ceramic material. But it is also possible that the valve body consists of a core with another material, which is coated with a ceramic material in the desired thickness.

At its end region arranged in the direction of the drive unit, i. at its opposite region to the aforementioned head region, the valve body may preferably be smaller, e.g. narrower, thinner, designed than in its remaining part.

This end region is preferably designed as a connection connection. Connection terminal here means an embodiment to which another component, such as the drive unit, connects. The end portion of the valve body or the connection connection is used to connect the valve body with another component, in particular with the drive unit. In particular, the connection connection may consist of the ceramic material or have such. As well as being made to the valve body, the connection terminal may also comprise a core with another material coated with a ceramic material of the desired thickness.

In this above-described "direct" embodiment of the heat resistance and the lower thermal conductivity of the valve body itself or the connection terminal of the valve body, the valve body itself or the connection port of the valve body assumes the function of a ceramic body.

Spatially and geometrically, the identity of the component is present; but it has an over its actual valve function beyond additional function, which is in the lower thermal conductivity and is expressed by the term of the ceramic body in this case, the "direct" embodiment of the heat resistance and the lower thermal conductivity.

The connection to the other component, in particular the drive unit, can be designed as a plug connection or as a screw connection, for example. Preferably, the subsequent component, e.g. the drive unit, with its one, the valve body end facing the valve body or the connection port of the valve body. The connection is preferably designed in a form-fitting manner. It can also be designed frictionally and / or non-positively.

Despite the direct contact between the valve body, in particular the connection port of the valve body, and the adjoining component, in particular the drive unit, only a limited heat conduction from the valve body or from the connection port of the valve body to the subsequent component, in particular the drive unit, as a result ceramic material of the valve body or the connection terminal instead. The subsequent component, in particular the drive unit, does not overheat even during prolonged operation; Accordingly, the emergence of leaks is avoided by thermal expansion; the control unit remains functional.

The poorly conductive ceramic material still has a high strength even at higher temperatures and can thus transmit the drive forces without the drive unit heating up too much.

In the "indirect" embodiment of the heat resistance discussed below and the lower thermal conductivity, a separate body of a ceramic material is arranged on the valve body of the valve of the transverse thrust nozzle. This separate body is also referred to as a ceramic body.

In the case of this "indirect" embodiment, the actual valve body, which controls the flow rate and the flow velocity of the combustion gases, even consist entirely of the above-described metallic materials or have these, such as molybdenum or titanium-zirconium-molybdenum.

Advantageously, the ceramic body can be designed for this purpose as a rotational body. The term body of revolution is generally understood in terms of geometry, that is to say as a body which is formed by rotation of an in-plane generating surface about an axis of rotation lying in the same plane but not cutting the surface. To name for example is the torus, which is formed by the rotation of a circle. Also bodies such as cylinders and hollow cylinders are among the bodies of revolution in the sense of the present invention.

The ceramic body is configured in a preferred embodiment of the invention as a plurality of balls. These balls are arranged at least once, preferably several times, radially around the valve body, preferably radially around the connection port of the valve body. The balls are made of a ceramic material in the sense of the above explanations or have such. This also applies to mixtures of such a ceramic material.

The choice of balls as a ceramic body has the already mentioned advantage that in this way the contact surface between the valve body and the drive unit can be reduced, thus already a great effect of the desired isolation can be accomplished.

The expert will pay particular attention to the strength criteria of the ceramic material in terms of the balls as a ceramic body, but also in relation to the ceramic body in general, taking into account the material composition, the grain size of the starting and additional materials, the manufacturing conditions and the manufacturing process choose.

Among the various aspects of strength, the bending strength OB [MPa] plays a special role. Technical ceramics are characterized by high strength at high temperatures. Suitable is from this point of view in particular alumina, silicon carbide, partially stabilized zirconia, silicon nitride. The flexural strength at 25 ° C for alumina and partially stabilized zirconia is in the range of about 1000 OB [MPa].

The compressive strength of ceramics is generally 5 to 10 times the flexural strength.

Even considering the elastic properties, oxide and non-oxide ceramics and silicate ceramics have clear advantages compared to metallic materials. Also in this respect, for example, be mentioned as suitable ceramic materials silicon carbide, silicon nitride, aluminum oxide.

The high hardness of technical ceramics also leads to advantages compared to metallic materials. Technical ceramics are characterized by high rigidity and dimensional stability, resulting in a favorable wear resistance. By way of example, silicon nitride, aluminum oxide, silicon carbide, in turn, may be mentioned as suitable ceramic materials.

The valve body facing one end of the subsequent component, e.g. The drive unit, thereby preferably surrounds the balls, so that the balls are arranged in the one interior forming portion of the drive unit. This interior can be configured, for example, as a cylindrical opening of this area of the drive unit.

The valve body of the valve of the transverse thrust nozzle is consequently, e.g. positively connected via the ceramic body in an embodiment of the balls with the drive unit. The forwarding of the heat between the valve body and drive unit is done greatly attenuated on the poor thermal conductivity ceramic body in the embodiment of the balls, which even at higher temperatures on high strength, in particular pressure resistance, and thus can transmit the drive forces without the drive unit to very heated.

The design of the ceramic body as balls has the advantage that the balls are easy to introduce into the connecting space between the valve body, in particular connection connection, and drive unit. Furthermore, the balls have only one line contact as a support surface, which also greatly reduces the heat conduction. Due to the high compressive strength of the ceramic material, the forces of the drive unit can be transferred well even when using balls.

In a particularly preferred embodiment, the balls of the ceramic body are arranged spirally around the connection connection of the valve body of the valve of the transverse thrust nozzle.

Instead of balls, other geometric shapes of the ceramic body can be chosen, which achieve the aforementioned purposes alike or similar well. For example, comes into consideration the choice of an ellipsoidal body. Also contemplated is an annular or annular-wave configuration which, like a kind of ring, is placed around the connection port of the valve body.

Furthermore, in another embodiment, the ceramic body can be used as a rotation body, e.g. be designed as Wälzrollen. These have a low heat conduction and can transmit high forces. The Wälzrollen can advantageously in corresponding counter-grooves, which are embedded, for example, in the connection terminal of the ceramic body, are inserted so that they are secured during installation of the nozzle against falling out or slipping.

Preferably, the at least one ceramic body may be biased by a screw connection. This can be done for example by means of a threaded screw which presses approximately on one of the aforementioned balls or Wälzrollen. Also, separate filling holes can be provided.

If the ceramic body is configured as balls or rolling rollers, it is preferable if the space between them is filled with an insulating material.

Likewise, it is conceivable that the ceramic body is designed approximately as a disc-shaped configuration, which is formed on the end face of the connection connection, for example via plug-in tubes let into the valve body. By means of a suitable number of plug pipes, the transmission of the high driving forces is ensured, i. such a disk-shaped ceramic body remains firmly connected in this way with the valve body of the valve of the transverse thrust nozzle. Also in this embodiment, it is advantageous if the valve body of the valve subsequent component, in particular the drive unit, the disc-shaped ceramic body surrounds, so receives approximately in a cylindrical opening of this connection portion of the drive unit.

Instead of a disc-shaped configuration of the ceramic body, other geometric basic structures come into consideration, such as a polygonal configuration of the ceramic body, which engages in a corresponding polygonal complementary opening of the connection region of the drive unit. This will also be a good transfer ensures the driving forces to the drive unit despite the environment of high temperatures.

Of course, in the above-described embodiments of the "indirect" embodiments of the heat resistance and the lower thermal conductivity via a ceramic body arranged separately on the valve body and the valve body itself or a part of the valve body, e.g. the connection terminal, designed as a ceramic material or be equipped with such addition.

In another embodiment of the invention, the preferably positive connection between the valve body to drive unit is effected by a ceramic body, which is designed as at least one socket. In the at least one bush, a bolt is arranged, which may preferably also be designed as a ceramic material, but also - because of its embedding in the at least one ceramic socket - may consist of other material, e.g. Molybdenum.

The at least one socket is guided through the connection terminal. The protruding from the socket with his head bolt establishes the, preferably positive, contact with the drive unit, in which he engages or plugged, for example, in a corresponding recess on the inside of the connecting terminal cross-part of the drive unit.

list of figures

• 1: einen schematischen Schnitt einer Düsenanordnung mit Ansteuereinheit und einem Keramikkörper mit Kugeln als Keramikkörper in einem Querschubtriebwerk;
• 2: einen erfindungsgemäßen Ventilkörper mit Verbindungsanschluss und Keramikkörper in Kugelausführung;
• 3: einen schematischen Schnitt einer anderen Düsenanordnung mit Ansteuereinheit in einem Querschubtriebwerk;
• 4: einen Ventilkörper in perspektivischer Ansicht und mit einem Keramikkörper in der Ausgestaltung als Buchse/Bolzen.

The invention will be further described with reference to the following embodiments, to which it is of course not limited. Hereby show:

• 1 a schematic section of a nozzle assembly with drive unit and a ceramic body with balls as a ceramic body in a transverse thrust engine;
• 2 a valve body according to the invention with connection connection and ceramic body in ball design;
• 3 FIG. 2 is a schematic section of another nozzle arrangement with drive unit in a transverse thrust engine; FIG.
• 4 a valve body in a perspective view and with a ceramic body in the embodiment as a socket / bolt.

1 shows a controllable transverse thrust engine 1 , which has a controllable transverse thrust nozzle 2 having. The adjustable transverse thrust nozzle 2 complies with an arrangement of a valve 10 , The valve 10 has a valve body 3 on.

The valve body 3 is inside of the wall 18 the transverse thrust nozzle 2 formed housing the transverse thrust nozzle arranged.

The valve 10 serves to control the respective gas flow. The gas flow is through the arrows 12 and 11 indicated. The transverse thrust nozzle 2 takes it with the reference number 12 characterized gas flow from the combustion chamber (not shown) via the Gaszuführkanal 14 is introduced into the transverse thrust nozzle. The gas flow is thereby in the receiving space 25 the transverse thrust nozzle 2 passed, which is also the valve 10 receives.

The gas flow flows around the valve body 3 of the valve 10 and is doing in the direction nozzle neck 15 the nozzle 2 forwarded. Through the channel 16 In this case, the transition of the gas flow takes place from the receiving space 25 in the bell-shaped extended interior 19 the transverse thrust nozzle. The gas flow is shown by the reference numeral 11 in the further course of the interior 19 derived from the transverse thrust nozzle.

As in 1 further shown is the arrangement of the valve body 3 movably designed. This is done by means of the double arrow 13 expressed. Thereafter, the valve body 3 in both directions 13 along its longitudinal axis 22 to be moved.

By this movable configuration of the valve body 3 The flow rate and the flow rate of the combustion gases can affect the valve body 3 flow around, be controlled. Will the valve body 3 in the direction of the discharge of the gas flow 11 from the transverse thrust nozzle 2 moved, so the valve body approaches 3 with its conical complementary section 17 , ie with its head portion, the convex course of the inner wall 23 the wall 18 the transverse thrust nozzle in the region of the nozzle neck 15 , This changes the cross section of the channel 16 for the passage of the combustion gases. The channel 16 is around the complementary section 17 of the valve body 3 configured circumferentially, thus between the Komplementärabschnitt 17 of the valve body 3 and the convex course of the inner wall 23 the wall 18 the transverse thrust nozzle 2 in the area of the nozzle neck 15 arranged.

1 shows the open position of the channel 16 in the area of the nozzle neck 15 , By a (not shown) movement of the valve body 13 of the valve 10 to the left may be a closed position of the channel 16 be effected. By this movement of the valve body 3 In both directions can therefore a change in cross section of the channel 16 from a complete closure of the nozzle neck 15 through the conical complementary section 17 until a complete opening of the nozzle neck 15 be effected. Depending on the open or closed position of the channel 16 the flow around the valve body changes 13 by means of the combustion gases in this area.

1 shows the valve body 3 of the valve 10 as a so-called Pintle configuration, in which the Pintle or the pin by means of the Complementärabschnittes 17 the nozzle neck 15 can close or open, depending on the direction of movement of the valve body 3 of the valve 10 ,

As in further 1 is shown, the valve body with the drive unit 5 connected. By the with the double arrow the reference number 13 expressed movement of the valve body 3 in its longitudinal axis 22 also moves the drive unit 5 , The movement is initiated and executed by the actuator 27 , whereby the change in the attitude control or path control of the missile is effected.

The drive unit 5 is doing by the control lever 20 , the bearing block 26 and the actuator 27 educated. These components 20 . 26 and 27 are movably configured in relation to each other, so that the actuator 27 via the movable connection to the control lever 20 and the bearing block 26 to a lateral displaceability of the drive unit 5 and thus the valve body 3 . 6 . 4 . 24 leads.

The actuator may be configured, for example, as an electric spindle motor.

In the in 1 the embodiment shown, the valve body goes 3 of the valve 10 in his the complementary section 17 opposite end portion in a block connection in a connection connection 6 over. The connection port 6 is narrower or thinner, that is, with a smaller diameter, designed as the main part of the valve body 3 , The end portion of the valve body 3 or the connection port 6 serves to connect the valve body 3 with the control unit 5 , The drive unit 5 engages with her one, the valve body 3 facing the end connection connection 6 , The connection is designed form-fitting.

You can see it in 1 furthermore the arrangement of a separate ceramic body 4 , This ceramic body 4 is in the in 1 shown embodiment of the invention as a plurality of balls 24 designed. The balls are several times radially around the outer circumference of the connection terminal 6 of the valve body 3 arranged.

In the in 2 shown detail is shown that the valve body 3 with the connection port 6 and the ceramic body in ball design 24 is configured, wherein the balls spiral around the connection terminal 6 are arranged; the nozzle and the drive unit are not shown in this detail.

The valve body 3 facing one end of the drive unit 5 surrounds the balls 24 , The gripping can be configured as a plug connection or as a screw arrangement.

In the in 1 the embodiment shown is the valve body 3 thus positively about the ceramic body 4 in an embodiment of the balls 24 with the control unit 5 connected. The transmission of heat between the valve body 3 and drive unit 5 takes place via the poor thermal conductivity ceramic body 4 , thus greatly reduced, in the embodiment of the balls 24 , which even at higher temperatures on high strength, in particular pressure resistance, and thus can transmit the Ansteuerkräfte, without that the drive unit 5 too hot.

This is done, as explained in the general part of the description, in that the ceramic body 4 . 24 consists of a ceramic material. The with flow around the valve body 3 Heat generated by the combustion gases is in the transition region, ie in the connection port 6 by the ceramic design of the ceramic body 4 . 24 virtually blocked and possibly only in a limited way to the drive unit 5 passed.

Out 1 is the advantage of the ceramic body 4 in the embodiment as balls 24 to recognize that namely the balls easily in the connecting space between the valve body 3 , in particular the connection connection 6 , and the drive unit 5 are to bring. Furthermore, it can be seen that the balls 24 have only one line contact as a support surface, which additionally greatly reduces the heat conduction. Due to the high compressive strength of the ceramic material of the balls 24 The forces of the drive unit can be transferred well even when using balls.

Instead of balls, other geometric shapes of the ceramic body can be used 4 to get voted. The ceramic body 4 can in particular as a rotational body, for example as Wälzrollen 21 (not shown). These also have a low heat conduction and can transmit high forces.

The at least one ceramic body 4 may be biased by a screw connection (not shown).

In another embodiment, in the 3 and in detail in 4 is shown, the positive connection from the valve body 3 to the drive unit 5 through the ceramic body 4 causes, as at least one jack 8th is executed. In the at least one socket 8th is a bolt 9 arranged, as well as the socket 8th can be configured as a ceramic material. The at least one socket 8th is through the connection port 6 led, as in 4 shown. The from the socket 8th with his head protruding bolts 9 provides the positive contact with the drive unit 5 by placing it in a corresponding recess on the inside of the connection connection 6 comprehensive part of the control unit 5 is introduced.

What the other components of in 3 and 4 illustrated embodiment of the transverse thrust nozzle 2 of the transverse thrust engine 1 , in particular of the valve body 3 As far as the 1 explanations also for 3 alike.

LIST OF REFERENCE NUMBERS

1

Cross thruster

2

Querschubdüse

3

valve body

4

ceramic body

5

control unit

6

connection port

7

screw

8th

Rifle

9

bolt

10

Valve

11

Gas flow (discharge from transverse thruster)

12

Gas flow (introduced from combustion chamber into transverse thruster)

13

Direction of movement of the movable valve body 3

14

Gas supply channel (coming from the combustion chamber)

15

nozzle throat

16

Channel (for the passage of combustion gases)

17

Complementary section of the valve body 3 to nozzle throat 15

18

Wall of the transverse thrust nozzle

19

Interior of the transverse thrust nozzle

20

Ansteuerhebel

21

rolling rollers

22

longitudinal axis

23

convex course of the wall 18

24

roll

25

accommodation space

26

bearing block

27

actuator

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102016101560 A1 [0010, 0011]
• DE 19735279 C1 [0010]

Claims (13)

Valve (10) of a nozzle (2) for a controllable transverse thrust engine (1) for missiles, with a nozzle (2), with a movable valve body (3), with a drive unit (5), characterized in that the valve body (3) a ceramic body (4) and is connected via this with the drive unit (5). Valve (10) for a controllable transverse thrust engine (1) for missiles with a nozzle (2), with a movable valve body (3), with a drive unit (5), characterized in that the valve body (3) via at least one ceramic body (4 ) is connected to the drive unit (5). Valve (10) after Claim 2 characterized in that the valve body (3) has a connection port (6) and that the at least one ceramic body (4) is designed as balls (24). Valve (10) after Claim 2 characterized in that the at least one ceramic body (4) is designed as a rotational body. Valve (10) after Claim 4 characterized in that the at least one ceramic body (4) is designed as balls (24). Valve (10) according to one or more of the preceding Claims 3 - 5 characterized in that the at least one ceramic body (4) is arranged at least once radially around the connection port (6) of the valve body (3). Valve (10) according to one or more of the preceding Claims 3 - 6 characterized in that the at least one ceramic body (4) is arranged at least once radially around the connection port (6) of the valve body. Valve (10) according to one or more of the preceding claims, characterized in that the at least one ceramic body (4) consists of oxide ceramic material or non-oxide ceramic material or silicate ceramic material. Valve (10) according to one or more of Claims 4 to 8th characterized in that the space between a plurality of rotational bodies is filled with an insulating material. Valve (10) according to one or more of the preceding claims, characterized in that the at least one ceramic body (4) via a screw connection (7) is biased. Valve (10) according to one or more of the preceding claims, characterized in that the at least one ceramic body (4) is designed as at least one bush (8) and is connected to at least one bolt (9) with the drive unit (5). A transverse thrust engine for missiles with a nozzle (2), with a valve (10) with a movable valve body (3) and with a drive unit (5) characterized in that the valve (10) is designed according to one or more of Claims 1 - 11 , Missile with at least one transverse thrust engine (1), characterized in that the transverse thrust engine (1) is designed according to Claim 12 ,

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