KR20050063400A - An apparatus for tip-jet driven rotor - Google Patents

Abstract

The present invention relates to a tipjet driven rotor device for allowing a tilting motion and a feathering motion.

In particular, the main duct portion having a Y-shape so that the incoming exhaust gas is diverged to both sides, a tettering duct portion connected to the main duct for a titling motion, and connected to the tettering duct portion and feathered Feathering duct for movement, the rotor blades are discharge gas is discharged to generate a thrust generated in the rotor blades, and the rotor portion is installed inside the center of the rotor blade portion is connected to the drive shaft is configured.

Accordingly, the airtight effect of the duct is increased by maintaining the surface contact motion instead of the line contact between the ducts during the hub hinge movement of the tipjet driven helicopter and the vertical takeoff and landing machine, and it is possible to eliminate the interference problem between the duct and the peripheral parts.

Description

Tip jet driven rotor device {AN APPARATUS FOR TIP-JET DRIVEN ROTOR}

The present invention relates to a tipjet-driven rotor apparatus, and more particularly, a main duct portion for branching exhaust gas flowing from a gas turbine engine is extended inside the housing and branched to both sides, and the branched main duct portion is connected to the rotor. Tethering duct part is connected to the tethering duct part through the sliding bearing so that the tethering movement occurs, and the feathering duct part is connected to the tethering duct part via the sliding bearing so that the feathering motion occurs to the wing blade, and the exhaust gas is discharged. And the feathering duct part is connected to the rotor blade part so that thrust is generated on the rotor blade, and a rotor part connected to the drive shaft at the hub of the rotor center part is installed inside the rotor blade part, and is applied to a tipjet driven helicopter and a vertical takeoff and landing machine. Line contact between ducts that allow hinge movement of the tettering hub and at the same time allow relative movement Provided is a tip-jet driven rotor device that allows tight airtightness due to new surface contact motion.

In general, fixed-wing aircraft have to maintain the velocity of relative wind in order to gain lift, and therefore, there is a limitation that it is impossible to vertically fly or hover vertically while maintaining the altitude while the horizontal speed is almost zero. .

All types of aircraft that are designed and manufactured so as not to have such constraints are able to take off and land even when there is no glide from the ground. Vertical take-off and landing (VTOL) are called. The lift must be greater than its own weight.

Therefore, there is a need for extra power and devices for vertical takeoff and landing, which is disadvantageous than fixed wing aircraft in cruise performance. As such, there is a conflict between the ability of in-flight flight and cruising performance, so the current vertical takeoff and landing machine changes the jetting direction of jet thrust used for advancing to the vertical direction when taking off and landing. There is a tilt rotor that makes the direction of the ship different during cruising and takeoff and landing, and a method of obtaining both lift and propulsion from a rotor fixed to the aircraft, such as a helicopter.

Particularly, the inner tube end inserted into the existing outer tube is spherically shaped to allow a certain angle of rotation and reciprocation at the same time, thereby reducing the gastightness effect and driving shaft end to allow the tilting motion of the hub system. In the case of the spherical bearing form, there is a problem in that the performance efficiency decreases due to the rapid shape change of the exhaust gas path.

In addition, joint / reciprocating ducts for vertical take-off and landing are allowed for both tilting and feathering movements, but space is required to avoid interference with the rotating axis during relatively large angles of tilting movements. Thereby there was a problem that the size of the rotating shaft increases.

An object of the present invention to improve this problem is to provide a tipjet drive rotor device to implement an effective mechanism of the exhaust duct hinge required for allowing the tipping drive and feathering movement of the tipjet drive rotor device.

In order to achieve the above object, the present invention, the main duct is a main duct branched to both sides after the exhaust gas flowing from the gas turbine engine extending in one direction so as to branch inside the housing,

A tettering duct part connected to a connecting duct via a sliding bearing in the main duct so that a tilting motion occurs in the rotor;

A feathering duct part connected to the discharge duct via a sliding bearing in the connection duct such that a feathering motion for changing the rotor blade pitch angle occurs;

A suction blade is formed at an end of the discharge duct so that the discharge gas is discharged and thrust is generated in the rotor blade, and a rotor blade portion having a plurality of discharge holes formed at one end portion extending in the inner longitudinal direction from the suction hole;

Is installed in the center of the rotor blade portion is made of a configuration including a rotor portion connected to the drive shaft in the hub of the rotor central portion.

For example, the tethering duct part according to the present invention has a seating groove in which a sliding bearing is mounted so that an end portion of the main duct slides into the connection duct when the tethering movement is generated by the rotor.

In addition, the feathering duct part according to the present invention is a surface contact in the circumferential direction with the discharge duct in the circumferential direction during the feathering movement for changing the rotor blade pitch angle and the sliding bearing to the end of the discharge duct so as to rotate a predetermined angle Rotating grooves are formed.

The connecting duct and the main duct are formed to have a constant curvature so that the extension trajectories of the connecting duct and the main duct to the center line of the connecting duct and the main duct are equally rotated during the tethering movement of the hub. The ducts should be smooth for mutual movement

In addition, the sliding bearing is preferably made of a carbon material installed between the inner and outer ducts for allowing a tettering movement, the surface contact state can be maintained during the flow between the ducts.

The tethering duct part and the feathering duct part connected to the tethering duct part may have relative motion between ducts due to a tethering motion and relative motion between ducts due to a feathering motion during the movement between the ducts. have.

In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

The following terms are terms set in consideration of functions in the present invention, which may vary depending on the intention or custom of the producer, and their definitions should be made based on the contents throughout the specification.

Hereinafter, the technical configuration of the present invention according to the accompanying drawings in detail.

 As shown in Figures 1 to 3, the present invention is the main duct portion 100 is branched from the exhaust gas flowing from the gas turbine engine, and the main duct portion 100 so that the tettering motion by the rotor occurs Tethering duct part 200 to be connected, a feathering duct part 300 is connected to the tethering duct part 200 so that a feathering movement is generated in the rotor blade, and a rotor blade rotating by the discharged gas thrust discharged 400 and the rotor part 500 which is installed inside the center of the rotor blade 400 is large.

For example, a tip-jet helicopter and a vertical take-off lander generate rotor rotational force by using exhaust gas from a gas turbine engine. For this purpose, exhaust gas passes from the engine through the rotor shaft, the hub 510 and the rotor blade to the end of the rotor blade. Can be fitted with ducts.

First, the main duct part 100 is installed inside the housing 600 to be transported to the rotary blade unit 400 by receiving the exhaust gas flowing from the gas turbine is extended to the upper side and then branched to one side and the other side The main duct 110 is provided, the branched main duct 110 is formed of the same arc-shaped duct as the circular path around the hub 510 hinge 520 of the rotor portion 500 of the tettering It is connected to the duct 200.

As shown in FIG. 4, in the tethering duct part 200 connected to the end of the main duct part 100, an end of the main duct 110 is connected to the duct when the tethering motion is generated by the rotor. (210) A seating groove in which the sliding bearing 120 is mounted to slide along the sliding bearing 120 is formed at an end of the connection duct 210.

As shown in FIG. 5, the other end of the connection duct 210 connected to the main duct 110 is connected to a feathering duct 300, and the feathering duct 300 is changed in the rotor blade pitch angle. Rotating groove having a sliding bearing 120 is interposed to the end of the discharge duct 310 so that the connection duct 210 is in contact with the sliding surface in the inner side of the discharge duct 310 during the feathering movement for rotation. Can be formed.

At this time, the sliding bearing 120 used in the tettering duct part 200 and the feathering duct part 300 is made of a carbon material that is installed between the ducts to allow the tilting movement, the surface when the flow between the ducts It is preferable to have a diameter corresponding to the inner and outer diameters of the duct drawn in so as to maintain the contact state.

In addition, the ducts used in the tettering duct part 200 and the feathering duct part 300 are to maintain the gas tightness, so as not to reduce the efficiency due to sudden bending of the duct shape, the material is under high temperature environment It is good to make titanium material to minimize the heat deformation of the duct and to prevent the change of physical properties of the material.

On the other hand, the other end of the feathering duct 300 is connected to the suction hole 410 of the rotor blade 400, the rotor blade 400 to which the feathering duct 300 is connected, feathering duct Exhaust gas moving along the part 300 is discharged to the outside and the suction hole 410 corresponding to the end of the discharge duct 310 to the center so that the thrust caused by the rotary blade is generated on one side based on the rotation center of the wing blade It is formed on each other and the other side, the discharge path is discharged to the discharge gas is discharged along the inner longitudinal direction in the suction hole 410 is connected to the discharge path formed extending from the center to one side end is moved to the side end of the wing A discharge hole 420 through which the discharge gas is discharged is formed.

In addition, the rotor blade 400, the center of the connection duct 210 and the main duct 110 on the basis of the center of the tethering hinge 520 so that the same rotation radius is made during the tethering movement of the hub 510. The extension trajectory to the line should be formed with a constant curvature of the connection duct 210 and the main duct 110 so that the mutual movement of each duct is made smoothly.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

First, the degree of freedom of movement of the duct due to the tilting motion of the rotor hub is given through the same duct shape as the path of the circular motion around the teetering hinge, which is as much as the rotation angle of the hub by the rotor tilting motion. A slipping motion between the outer duct and the inner duct joins along the duct path equal to the radius of rotation from the center.

At this time, the sliding bearing of carbon material is inserted in the middle for the sliding movement of the main duct and the connecting duct, and the sliding bearing of carbon material is inserted between the connecting duct and the discharge duct to allow the feathering movement of the rotor blade. As a result, the rotational movement between the ducts can be facilitated, and a proper tolerance between the carbon material and the duct can be provided to impart the airtight effect of the high temperature and high pressure gas discharged from the engine.

For example, the exhaust gas of the inflow gas turbine engine is discharged through the rotor blade end of the rotor blade part through the duct of the main duct part, the tettering duct part, and the feathering duct part so that the rotational force of the wing blade is generated by using the reaction force generated at this time. Will be.

And, in order to generate lift, the rotor rotates at high speed and the rotor device can be tilted and petted in order to control the thrust direction and attitude.The relative motion and feathering motion between the ducts due to the tilting motion Relative movement between the ducts by each may be made independently.

As described above, the present invention permits the hinge movement of the tethering type hub and simultaneously maintains the surface contact movement instead of the line contact between the ducts in which the relative movement occurs, thereby keeping the connection of the duct which is the exhaust path of the engine exhaust gas of the hot gas tight. In addition, it is possible to prevent the change of the overall duct assembly shape due to the rotation and slip motion between the ducts when the tethering movement occurs in the hub to eliminate the interference problem between the duct and the peripheral parts.

While the invention has been shown and described with respect to specific embodiments thereof, it will be appreciated that the invention can be variously modified and varied without departing from the spirit or scope of the invention as provided by the following claims. do.

As described above, according to the present invention, the tip jet driven helicopter and the tilting type hub applied to the vertical take-off and landing machine allow the hinge movement of the tethering hub and maintain the surface contact movement instead of the line contact between the ducts in which the relative movement occurs. There is an advantage to increase the airtight effect of the path duct.

In addition, the present invention is to prevent the change of the overall duct assembly shape due to the rotation and slip motion between the duct when the tilting movement occurs in the hub, and has an excellent effect to eliminate the interference problem between the duct and the peripheral parts.

1 is a perspective view showing a tipjet drive rotor device according to the present invention.

Figure 2 is an internal perspective view of the tipjet drive rotor device according to the present invention.

Figure 3 is a side cross-sectional view of the tipjet drive rotor device according to the present invention.

4 is a partial detailed view showing a portion "A" of Figure 3 of the tipjet drive rotor device according to the present invention.

FIG. 5 is a partial detailed view of part “B” of FIG. 3 of the tipjet drive rotor device according to the present invention; FIG.

<Code Description of Main Parts of Drawing>

100.Main duct part 200 ... Tetering duct part

300 ... feathering duct 400 ... rotorcraft

500 ... rotor part 600 ... housing

Claims (6)

A main duct part 100 branched in a Y shape after the main duct 110 extends in one direction so that the exhaust gas flowing from the gas turbine engine branches inside the housing 600; A tettering duct part 200 connected to the connection duct 210 via the sliding bearing 120 in the main duct 110 so that a rotor tettering motion occurs; A feathering duct unit 300 connected to the discharge duct 310 via a sliding bearing 120 in the connection duct 210 so that a feathering motion for changing the rotor blade pitch angle is generated; A plurality of suction holes 410 are formed at the end of the discharge duct 310 so that the discharge gas is discharged and thrust is generated at the rotor blades. The suction gas 410 extends in the inner longitudinal direction from the suction holes 410. Rotary blade unit 400 having a discharge hole (420); Tip rotor drive method characterized in that the rotor blades are installed inside the center of the rotor portion 400 is configured to include a rotor portion 500 connected to the drive shaft in the hub 510 of the rotor center portion. According to claim 1, The tettering duct 200 is seated in which the sliding bearing 120 is mounted so that the end of the main duct 110 slides into the connection duct 210 when the tettering movement by the rotor occurs. Tip jet drive rotor device, characterized in that the groove is formed at the end of the connection duct (210). According to claim 1, The feathering duct 300 is the exhaust duct 310 is in contact with the connection duct 210 in the circumferential direction during the feathering movement for changing the rotor blade pitch angle to rotate the predetermined angle Tip jet drive rotor device, characterized in that the rotating groove is formed by the sliding bearing 120 is the end of the discharge duct 310. According to claim 1, The connection duct 210 and the main duct 110, the extension trajectory to the center line of the connection duct 210 and the main duct 110 with respect to the center of the tethering hinge 520. Tipjet drive rotor device, characterized in that formed in a certain curvature so that the same rotation radius is made during the tethering movement of the hub (510) is allowed to mutual movement of each duct. According to claim 1, The sliding bearing 120 is made of a carbon material tipjet drive rotor device, characterized in that the surface contact state with the duct is maintained during the flow between the ducts. The method of claim 1, wherein the tethering duct portion 200 and the feathering duct portion 300 connected to the tettering duct portion 200, the relative movement between the ducts and feathers due to the tethering movement during the flow between the ducts Tip jet drive rotor device, characterized in that the relative movement between the duct by the ring movement is made independently.