JP3178695B2 - Side thrusters - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flying object, and more particularly to a side thruster used for controlling the thrust direction of an ultra-high speed flying object.

[0002]

2. Description of the Related Art Conventionally, as the above-mentioned side thruster, for example, there is a side thruster shown in FIG. 4, and this side thruster 51 includes a pair of solenoids 52, 52, solenoids 52, 52, a lever 53, and a rotating shaft 54. And thrust nozzles 56 and 5 disposed on both sides of the flapper valve 55 and in opposite directions to each other.
6 and a torsion tube 57 provided in a fitted state on the rotating shaft 54, one end of which is connected to the lever 53, and the other end of which is connected to the flying object main body (not shown).

This side thruster 51 rotates a lever 53 by the attraction force of a pair of solenoids 52, 52,
The flapper valve 55 is moved by the rotating power transmitted through the rotating shaft 54 to close the thrust nozzles 56 and 56.
When the solenoids 52, 52 are not operated, the torsion rigidity of the torsion tube 57 causes the flapper valve 55 to be held at an intermediate position between the nozzles 56, 56.

The side thruster 51 is mounted on a rocket, for example, with the thrust nozzles 56, 56 opened to the side of the rocket. When thrust direction control is not required, the flapper valve 55 is connected to the thrust nozzle 56. , 56, and thrust gas G continuously supplied from the white arrow direction is ejected from both thrust nozzles 56, 56 to control the thrust direction, the pair of solenoids 52, 52 So that one of the thrust nozzles 56 is closed by the flapper valve 55 and the thrust gas G is ejected only from the other thrust nozzle 56 so that the rocket is given a thrust in a direction orthogonal to the machine axis. Has become.

[0005] Such a side thruster is described on pages 729 to 730 of "Handbook of Aerospace Engineering, Second Edition" issued by Maruzen on September 30, 1992.

[0006]

However, in the above-described side thruster 51, the flapper valve 55 is rotated by the suction force of the solenoid 52, and the thrust nozzle 5 is rotated.
6, the side thruster 51 is closed.
Is dependent on the energizing time to the solenoid 52.

That is, no matter how much the response time of the side thruster 51 using the solenoid 52 is reduced, there is naturally a limit. For example, an ultra-high-speed flying object that completes the flight in an extremely short time is provided. In such a case, there is a problem that a situation in which the required thrust direction control cannot be performed may occur, and solving this problem has been a conventional problem.

[0008]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and can greatly improve responsiveness, and can surely perform thrust direction control required instantaneously. It is intended to provide a certain side thruster.

[0009]

A side thruster according to a first aspect of the present invention is provided with a pair of thrust nozzles arranged opposite to each other to inject a thrust gas supplied to a thrust gas flow chamber; A pair of flapper valves provided in the gas flow chamber to close and open a pair of thrust nozzles respectively, and a flapper valve driving gas is injected into one of the flapper valves for closing and opening the thrust nozzle to perform a nozzle closing / opening operation. The flapper valve driving gas generator for closing one side nozzle and the flapper valve driving gas generator for opening one side nozzle, and the other flapper valve for closing and opening the thrust nozzle are injected with the flapper valve driving gas to close the nozzle.・ A flapper valve driving gas generator for closing the other nozzle and a flapper valve driving gas generator for opening the other nozzle are provided. Configuration and are characterized in that the,
The configuration of this side thruster is used as means for solving the above-mentioned conventional problems.

A side thruster according to a second aspect of the present invention includes a plurality of flapper valve driving gas generators for closing the nozzles and a plurality of flapper valve driving gas generators for opening the nozzles. The flapper valve driving gas generator and the flapper valve driving gas generator for opening the nozzle are configured to inject the flapper valve driving gas alternately.

Further, in the side thruster according to the third aspect of the present invention, a flapper valve driving gas generator for closing the nozzle and a flapper valve driving gas generator for opening the nozzle are provided to face each other in the axial direction of the nozzle. The flapper valve has a leaf spring shape, one end of the leaf spring flapper valve is fixed to the gas flow chamber, and the other end is a flapper valve driving gas generator for closing the nozzle and a flapper valve driving gas for opening the nozzle. It is configured such that it is located between the vessels and at a site where the flapper valve driving gas can be sprayed.

[0012]

In the side thruster according to the first aspect of the present invention, one thrust nozzle closing / opening flapper valve and the other thrust nozzle closing / opening flapper valve are each a nozzle closing flapper valve. The flapper valve driving gas injected from the driving gas generator and the flapper valve driving nozzle opens and closes and opens the nozzle respectively, so the response time is extremely short compared to the side thrusters using solenoids. Becomes
The instantaneously required changes in the two opposing thrust directions can be reliably performed in an extremely short time.

Further, in the side thruster according to the second aspect of the present invention, the control of the thrust direction required instantaneously is performed reliably and continuously.

Further, the structure of the side thruster according to the third aspect of the present invention is simpler than that of a conventional side thruster using a solenoid.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings.

FIGS. 1 to 3 show an embodiment of a side thruster according to the present invention. As shown in FIG. 1, this side thruster 1 is a gas thruster formed continuously with a thrust gas generator 2. A distribution room 3 is provided.

The gas flow chamber 3 to which the thrust gas SG is continuously supplied has a bifurcated shape, and has branch portions 3A and 3B.
Has a thrust nozzle 4 for injecting a thrust gas SG.
And one leaf spring-shaped flapper valve 5 for closing and opening the thrust nozzle 4.

A pair of thrust nozzles 4 (4A, 4A,
4B) are arranged in opposite directions at the respective intermediate portions of the branch portions 3A and 3B, and the pair of leaf spring-shaped flapper valves 5 are fixed at one end to the bottoms of the branch portions 3A and 3B. In addition, the other end of each thrust nozzle 4 is arranged to face the throat side end of the thrust nozzle 4.

The side thruster 1 is used to close the one side nozzle to inject the flapper valve driving gas into the branch portion 3A of the gas flow chamber 3 to cause the flapper valve 5 to perform the closing / opening operation of one nozzle 4A. Flapper valve driven gas generator 6
A (6) and a plurality of flapper valve driving gas generators 7A (7) for opening one side nozzle having the same structure as the flapper valve driving gas generator 6A for closing the nozzles are provided. Flapper valve driving gas generator 6B (6) for closing the other side nozzle and causing the flapper valve 5 to close and open the other nozzle 4B by injecting the flapper valve driving gas into the branch portion 3B A plurality of flapper valve driving gas generators 7B (7) for opening are provided.

This flapper valve driving gas generator 6 for closing the nozzle (flapper valve driving gas generator 7 for opening the nozzle)
Has a substantially lightning tubular shape, and as shown in FIG.
An explosive 6d and an additive 6e, which are ignited by an ignition ball 6c provided at the tip of a leg line 6b, are loaded into a case 6a having one end (lower end in the drawing) opened, and one end of the case 6a is connected to a check ball 6f. At the same time as closing,
(B), as shown in FIG.
g, the flapper valve driving gas generator 6 (7) for closing a plurality of nozzles is provided with a mounting surface of the communication pipe 8 as shown in FIG. Are screwed and fixed at equal intervals.

The communication pipes 8, 8 equipped with a plurality of flapper valve driving gas generators 6 (7) for closing the nozzles,
The gas injection holes 9a, 9a of the elbows 9, 9 connected to the openings 8a, 8a are opposed to each other in the axial direction of the thrust nozzle 4, and the two branch portions 3 in the gas flow chamber 3 are formed.
A and 3B are attached to both gas injection holes 9a, 9
The flapper valve driving gas from the flapper valve driving gas generator 6 for closing the nozzle and the flapper valve driving gas generator 7 for opening the nozzle are alternately injected into the other end portion of the flapper valve 5 positioned between the flapper valve driving gas and the flapper valve driving gas. The flapper valve 5 is driven by blowing.

The above-described side thruster 1 is mounted on a rocket (not shown) with thrust nozzles 4A and 4B opened to the side of the rocket. Until the rocket is fired, the gas flow as shown by the solid line in FIG. The leaf spring-shaped flapper valves 5 and 5 of the two branch portions 3A and 3B in the chamber 3 are pressed and held against the gas injection holes 9a and 9a of the flapper valve driving gas generators 6A and 6B for closing the nozzle.

In this state, when the rocket starts flying, both the flapper valves 5 and 5 are controlled by the thrust gas SG continuously supplied from the thrust gas generator 2 until control of the thrust direction is required. Gas injection holes 9a, 9 on the side of flapper valve driving gas generators 6A, 6B for closing nozzles
a, and the neutral state is maintained.

Next, for example, when the thrust direction is changed by ejecting the thrust gas SG only from the thrust nozzle (one thrust nozzle) 4A on the side of the branch 3A, the other nozzle closes the branch 3B. When the flapper valve driving gas generator 6B is ignited, the flapper valve driving gas injected from the flapper valve driving gas generator 6B is ejected from the gas injection hole 9a of the elbow 9 through the communication pipe 8,
The flapper valve 5 on the side of the branch portion 3B to which the flapper valve driving gas is blown is opposed to the pressure received from the thrust gas SG, as shown by a two-dot chain line in FIG. Since it moves to the generator 7B side, the thrust nozzle (the other thrust nozzle) 4B of the branch portion 3B is closed by the flapper valve 5.

At this time, since the internal pressure of the gas flow chamber 3 is about twice as high as that in the neutral state, the moved flapper valve 5 is moved to the side of the flapper valve driving gas generator 7B for opening the other side nozzle. The thrust nozzle 4B is pressed against the gas injection hole 9a, and the other thrust nozzle 4B is maintained in the closed state.
The thrust gas SG is ejected only from the thrust nozzle 4A on the side, and the thrust direction is changed.

Next, when returning the thrust direction to the neutral state, the flapper valve driving gas generator 7B for opening the other side nozzle of the branch portion 3B is ignited, and the flapper injected from the flapper valve driving gas generator 7B is fired. When the valve driving gas is ejected from the gas injection holes 9a of the elbow 9 through the communication pipe 8, the flapper valve 5 of the branch portion 3B to which the flapper valve driving gas has been blown has the same pressure as that described above from the thrust gas SG. On the other hand, since it moves to the flapper valve driving gas generator 6B side for closing the other side nozzle, the other thrust nozzle 4B of the branch portion 3B is opened, and the moved flapper valve 5 generates the flapper valve driving gas for closing the nozzle. Tableware 6B
The thrust nozzle 4B is pressed again against the gas injection hole 9a on the side, the open state of the thrust nozzle 4B is maintained, and the thrust gas SG is jetted from the thrust nozzles 4A, 4B of the branch portions 3A, 3B, and the thrust direction returns to the neutral state. It will be.

When the thrust direction is changed by injecting the thrust gas SG only from the other thrust nozzle 4B on the branch portion 3B side, a flapper valve driving gas generator for closing one side nozzle in the branch portion 3A is used. By igniting the flapper valve 6A and ejecting the flapper valve driving gas from the flapper valve driving gas generator 6A from the gas injection holes 9a, the flapper valve 5 of the branch portion 3A is moved to one side as shown by a dashed line in FIG. When the thrust nozzle 4A of the branch portion 3A is closed by the flapper valve 5 by moving to the flapper valve driving gas generator 7A side for opening the side nozzle, and the thrust direction is returned to the neutral state, the branch portion 3A is used. By igniting the flapper valve driving gas generator 7A for opening the one side nozzle of the nozzle and discharging the flapper valve driving gas from the gas injection hole 9a, the branch portion is formed. Moving the flapper valve 5 A to the flapper valve driving gas generator 6A side of one side nozzle clogging, to open one of the thrust nozzle 4A of the branch portions 3A.

As described above, in the side thruster 1,
By moving the pair of flapper valves 5 with the flapper valve driving gas injected from the flapper valve driving gas generator 6 for closing the nozzle and the flapper valve driving gas generator 7 for opening the nozzle, the thrust nozzles facing in opposite directions to each other. 4A,
4B are closed and opened, respectively, so that the instantaneously required changes in the opposing two thrust directions can be surely performed in a very short time. In the side thruster 1, A plurality of flapper valve driving gas generators 6 for closing the nozzle and a plurality of flapper valve driving gas generators 7 for opening the nozzle are provided, and the flapper valve driving gas is alternately injected. Control of the required thrust direction is performed reliably and continuously.

Further, since the side thruster 1 does not use a lever or a rotating shaft for the drive system of the flapper valve 5, the structure is simplified as compared with a conventional side thruster using a solenoid.

The detailed configuration of the side thruster according to the present invention is not limited to the above embodiment.

[0031]

As described above, according to the first aspect of the present invention,
In the side thruster according to the above, since the flapper valve is configured as described above, the flapper valve performs the nozzle closing / opening operation by the flapper valve driving gas ejected from the flapper valve driving gas generator for closing the nozzle and the flapper valve driving gas generator for opening the nozzle. Therefore, the response time can be extremely shortened, and an extremely excellent effect that it is possible to reliably change the opposing two thrust directions in the order of several ms is brought about.

Further, the side thruster according to the second aspect of the present invention has an extremely excellent effect that the thrust direction control required instantaneously can be performed reliably and continuously.

Further, the side thruster according to the third aspect of the present invention has an extremely excellent effect that the structure can be simplified as compared with a conventional side thruster using a solenoid.

[Brief description of the drawings]

FIG. 1 is an explanatory sectional view showing one embodiment of a side thruster according to the present invention.

FIG. 2 is an enlarged perspective explanatory view showing a flapper valve driving gas generator of a side thruster in FIG. 1;

3A is a cross-sectional view of the flapper valve driving gas generator shown in FIG. 2 and FIG. 3B is a bottom view of a lid.

FIG. 4 is an explanatory perspective view of a conventional side thruster.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Side thruster 3 Gas flow chamber 4 (4A, 4B) Thrust nozzle 5 Flapper valve 6 (6A, 6B) Flapper valve driving gas generator for closing nozzle 7 (7A, 7B) Flapper valve driving gas generator for opening nozzle SG Thrust gas

Continuation of the front page (56) References JP-A-59-192851 (JP, A) JP-A-48-35596 (JP, A) JP-A-57-181953 (JP, A) JP-A-50-16921 (JP) , A) Japanese Utility Model Showa 64-43411 (JP, U) Japanese Patent Publication No. 48-38488 (JP, B1) (58) Fields investigated (Int. Cl. ⁷ , DB name) F02K 9/88 B64C 15/14 B64G 1/26

Claims (3)

(57) [Claims] 1. A pair of thrust nozzles arranged opposite to each other for injecting a thrust gas supplied to a thrust gas flow chamber, and a pair of thrust nozzles provided in the gas flow chamber are closed and opened, respectively. A flapper valve driving gas generator for one-side nozzle closing and one side for injecting a flapper valve driving gas to one thrust nozzle closing / opening flapper valve to perform nozzle closing / opening operation. Flapper valve driving gas generator for injecting flapper valve driving gas to the nozzle opening flapper valve driving gas and the other thrust nozzle closing / opening flapper valve to perform nozzle closing / opening operation A side thruster comprising a generator and a flapper valve driving gas generator for opening a nozzle on the other side. 2. A flapper valve driving gas generator for closing a nozzle and a plurality of flapper valve driving gas generators for opening a nozzle, respectively, wherein the flapper valve driving gas generator for closing a nozzle and a flapper for opening a nozzle are provided. 2. The side thruster according to claim 1, wherein the valve driving gas generator injects the flapper valve driving gas alternately. 3. A flapper valve driving gas generator for closing a nozzle and a flapper valve driving gas generator for opening a nozzle are provided facing each other in the axial direction of the nozzle, and the flapper valve is formed in a leaf spring shape. One end of the flapper valve is fixed to the gas flow chamber, and the other end can be blown between the flapper valve driving gas generator for closing the nozzle and the flapper valve driving gas generator for opening the nozzle and blowing the flapper valve driving gas. 3. The side thruster according to claim 1, wherein the side thruster is located at an appropriate part.