KR101012695B1 - Contra rotating apparatus for fluid machinery - Google Patents

Abstract

The present invention relates to a reverse rotation device for a fluid machine for converting the kinetic energy of the fluid into mechanical energy. The reverse rotation device for a fluid machine includes: at least one first rotor having an internal member formed on an inner circumferential surface thereof and configured to mount a plurality of vanes that rotate in a first direction in response to the flow of fluid; An inner circumferential member is formed on the inner circumferential surface, and a plurality of blades that rotate in a second direction opposite to the first direction is mounted on the outer circumferential surface, and is alternately arranged coaxially with the first rotor. At least one second rotor; A plurality of electric units disposed radially about an axis of the first rotor and receiving rotation from an internal member of the first rotor; A plurality of inverting units disposed radially about the axis of the second rotor between the plurality of electric units, inverting rotation of the plurality of electric units, and transmitting rotation to the inner member of the second rotor; ; It includes an output unit for outputting the rotational force of the first rotor and the second rotor.

Turbine, Reverse Rotation, Internal Member, Electric Unit, Reverse Unit

Description

Inverting Rotator for Fluid Machinery {CONTRA ROTATING APPARATUS FOR FLUID MACHINERY}

The present invention relates to a reverse rotation device for a fluid machine, and more particularly, to a reverse rotation device for a fluid machine for converting the kinetic energy of the fluid into mechanical energy.

Fluid machines that convert the kinetic energy of the fluid into mechanical energy include steam turbines, gas turbines, jet engines, wind turbines, and the like.

In general, a turbine is a device that obtains a rotational force by the impulse or reaction force by using a flow of fluid, such as steam, gas, is a steam turbine using steam, gas is called a gas turbine.

In such a turbine, a plurality of blade-mounted rotors and stators which are rotated by a flow of a fluid such as steam or combustion gas are alternately arranged in multiple stages to convert the kinetic energy of the fluid into mechanical energy. The rotor blades of each rotor stage rotate in the same direction. Accordingly, fluid such as steam or combustion gas introduced from the input end of the rotor rotates each blade mounted in the rotor of the multi-stage while converting energy.

However, in the conventional turbine, the stator disposed at each stage acts as a resistance to the flow of the fluid, causing a pressure loss, and also a pressure loss due to cavitation occurs in the blades of the rotor rotating in the same direction, resulting in energy efficiency. There is a problem of deterioration. In addition, since the stator must be arranged in each stage, there is a problem that the turbine becomes large and the structure becomes complicated.

The present invention is to improve the problems of the conventional fluid machine, such as a turbine, by introducing the concept of Counter / Contra Rotating Propeller (CRP), it is configured to be mounted to each wing that rotates in opposite directions corresponding to the flow of the fluid, respectively An object of the present invention is to provide a reverse rotation apparatus for a fluid machine that alternately arranges a first rotor and a second rotor on a coaxial axis and converts the kinetic energy of the fluid flowing through the blade into mechanical energy.

In order to achieve the above object, in the reverse rotation apparatus for a fluid machine for converting the kinetic energy of the fluid according to the present invention into mechanical energy, an internal member is formed on the inner peripheral surface, in the first direction corresponding to the flow of the fluid on the outer peripheral surface At least one first rotor configured to mount a plurality of rotating vanes; An inner member is formed on the inner circumferential surface, and the outer circumferential surface is configured to be equipped with a plurality of vanes that rotate in a second direction opposite to the first direction in response to the flow of the fluid, and is alternately disposed coaxially with the first rotor. One second rotor; A plurality of electric units disposed radially about an axis of the first rotor and receiving rotation from an internal member of the first rotor; A plurality of inverting units disposed radially about the axis of the second rotor between the plurality of electric units, inverting rotation of the plurality of electric units, and transmitting rotation to the inner member of the second rotor; ; And an output unit for outputting rotational forces of the first rotor and the second rotor.

The inversion between the electric unit and the inversion unit may occur between the first rotor and the second rotor. Or may occur at the initial input and together at the initial and final output.

Each of the plurality of transmission units may include a first transmission member that is internally rotated by the internal member of the first rotor and a second transmission member which is coaxially disposed with the first transmission member and integrally rotates with the first transmission member. Each of the plurality of inversion units, the first inversion member for inverting the rotation of the second transmission member, disposed coaxially with the first inversion member and rotated integrally with the first inversion member It may include a second inversion member in the internal rotation of the internal member of the second rotor.

The rotation ratio between the second transmission member and the first inversion member may be 1: 1.

The reverse rotation device according to the present invention may further include a flow preventing unit for preventing the flow of the first rotor and the second rotor.

The output unit may include: a driven member externally rotating with the second inversion member engaged with the first transmission member or the internal member of the second rotor, which is engaged with the internal member of the first rotor disposed at the final end; It may include an output shaft coupled to the driven member.

The reverse rotation apparatus according to the present invention includes the plurality of first transmission members and the plurality of second meshing members engaged with the first rotor and the second rotor, respectively, except for the first rotor or the second rotor disposed at a final stage. It may further include an auxiliary member disposed in the center of the inversion member and externally rotated with the first transmission member and the second inversion member.

According to the above configuration, the reverse rotation device for a fluid machine according to the present invention alternately arranges the first rotor and the second rotor mounted on the coaxial with the rotor rotating in opposite directions corresponding to the flow of the fluid, respectively. It is possible to transmit the rotational force of the first rotor and the second rotor through one output shaft through a gear train or frictional train of simple structure. Accordingly, the structure of the reverse rotation device can be compact, and the size can be reduced.

In addition, the CRP structure can lower the rotational noise of the blade and increase the energy transfer efficiency.

In addition, by having each gear or friction difference constituting the gear train or frictional heat having the same configuration, it is possible to easily simplify the process and modularization of the parts.

Reverse rotation device for a fluid machine according to the present invention can be utilized in a variety of fluid machines, such as gas turbines, steam turbines, jet engines, wind turbines.

Hereinafter, a reverse rotation apparatus for a fluid machine according to exemplary embodiments of the present invention will be described with reference to the accompanying drawings. In describing the different embodiments, the same reference numerals are given to the same or similar components, and the repeated description may be omitted as necessary.

1 to 7 show a reverse rotation apparatus for a fluid machine according to a first embodiment of the present invention.

1 to 3, the reverse rotation apparatus according to the present embodiment includes a first rotor 11a, 11b, 11c, a second rotor 21a, 21b, a plurality of electric units 31, and a plurality of rotors. Inversion unit 41 and output unit 51 are included. The reverse rotation apparatus according to the present embodiment may further include a flow preventing part 71.

As shown in FIG. 4, the first rotors 11a, 11b, and 11c have a ring shape, and a first internal member 13 is formed on an inner circumferential surface thereof and rotates in a first direction corresponding to the flow of a fluid on the outer circumferential surface thereof. A plurality of first blades 15 are mounted.

As shown in FIG. 5, the second rotors 21a and 21b have a ring shape, and a second inner member 23 is formed on an inner circumferential surface thereof, and a plurality of second wings that rotate in response to the flow of a fluid on the outer circumferential surface thereof. (25) is attached. Each of the second blades 25 of the second rotors 21a and 21b rotates in a second direction opposite to the first direction that is the rotational direction of the first blades 15 of the first rotors 11a, 11b and 11c. To this end, it may be mounted opposite to the first blades 15 of the first rotors 11a, 11b, and 11c.

1 and 2, the first rotors 11a, 11b, 11c and the second rotors 21a, 21b are alternately arranged at regular intervals on the coaxial axis.

The first rotors 11a, 11b, 11c and the second rotors 21a, 21b may have the same outer diameter and inner diameter, and each of the first and second internal members 13, 23 may also have the same dimensions. have. As a result, the process can be simplified and the module can be easily modularized. However, if necessary, the outer and inner diameters of the first rotors 11a, 11b and 11c and the second rotors 21a and 21b, and the dimensions of the first and second internal members 13 and 23 may be designed differently. have.

The plurality of electric units 31 are radially disposed about the axes of the first rotors 11a, 11b, and 11c, and transmit rotation from the first internal member 13 of the first rotors 11a, 11b, and 11c. Receive. In this embodiment, three electric units 31 are arranged radially about the axis of the first rotors 11a, 11b, 11c.

Each electric unit 31 is coaxially with the 1st transmission member 33 and the 1st transmission member 33 which internally rotate to the 1st internal member 13 of the 1st rotors 11a, 11b, 11c. The second transmission member 35 is disposed to rotate integrally with the first transmission member 33.

The first transmission member 33 and the second transmission member 35 are coupled by the transmission shaft 37 to rotate integrally. Although the first transmission member 33 and the second transmission member 35 are manufactured separately from the transmission shaft 37, it is preferable that the first transmission member 33 and the second transmission member 35 are coupled to the transmission shaft 37 by a known method such as key coupling or shrinkage. In accordance with the transmission shaft 37 may be formed integrally. The transmission shaft 37 of each transmission unit 31 is arrange | positioned in parallel with the axis line of the 1st rotors 11a, 11b, and 11c, and is rotatably supported by the housing 61 at the both ends, respectively.

The plurality of inverting units 41 are radially disposed around the axes of the second rotors 21a and 21b between the plurality of electric units 31 arranged radially so as to rotate the electric units 31. Inverting and transmitting rotation to the second internal member 23 of the second rotor (21a, 21b). Since the inversion unit 41 is paired with the electric unit 31, for example, if the number of the electric unit 31 is three as in this embodiment, the number of the inversion unit 41 is also set to be connected to each other.

Each inversion unit 41 is arranged coaxially with the first inversion member 43 and the first inversion member 43 for inverting the rotation of the second transmission member 35. And a second inversion member 45 which rotates integrally and inwardly rotates the second internal member 23 of the second rotors 21a and 21b.

The first inversion member 43 rotates externally with the second transmission member 35 to reverse the rotation of the second transmission member 35.

As shown in FIG. 2, a pair of first inverting members 43 are disposed on both sides of the second inverting member 45 in the inward rotation of the second inverting member 23 of the second rotors 21a and 21b. Are arranged respectively.

Each of the first inversion members 43 and the second inversion members 45 are coupled by the inversion shaft 47 to rotate integrally. The first inversion member 43 and the second inversion member 45 may be manufactured separately from the inversion shaft 47 so as to be coupled to the inversion shaft 47 by a known method such as key coupling or shrinkage. In accordance with this, it may be integrally formed with the inversion shaft 47. The inversion shaft 47 of each inversion unit 41 is arrange | positioned in parallel with the axis line of 2nd rotors 21a and 21b, and is rotatably supported by the housing 61 at each end part, respectively.

The rotation ratio between the first inversion member 43 and the second transmission member 35 may be 1: 1, and may be in another ratio as necessary. When the rotation ratio is 1: 1, the configuration of the first and second transmission members 33 and 35 and the first and second inversion members 43 and 45 can all be the same, thereby simplifying the process and Modularization can be easily implemented.

In addition, since the first and second transmission members 33 and 35 and the first and second inversion members 43 and 45 all rotate on parallel axes 37 and 47, the assembly can be easily performed with a simple configuration.

2 and 7, the output unit 51 outputs rotational forces of the first rotors 11a, 11b and 11c and the second rotors 21a and 21b. The output unit 51 is disposed at the center of the plurality of electric units 31 engaged with the first internal member 13 of the first rotor 11c disposed at the last end to rotate the plurality of electric units 31. It includes a driven member 53 and an output shaft 55 coupled to the driven member 53.

The driven member 53 is disposed at the center of the plurality of electric units 31, that is, on the central axis line of the first rotor 11c of the final stage, and meshes with the first transmission member 33 of the final stage to rotate. The driven member 53 receives not only the rotational force of the first rotor 11c of the last end but also the rotational force of the first rotors 11a and 11b and the second rotors 21a and 21b disposed at the front end thereof.

The output shaft 55 is disposed coaxially with the first rotors 11a, 11b, 11c, and both ends are rotatably supported by the housing 61. The output shaft 55 outputs the rotational force of the first rotors 11a, 11b and 11c and the second rotors 21a and 21b transmitted through the driven member 53.

In the above configuration, the first and second internal members 13 and 23, the first and second transmission members 33 and 35, the first and second inverting members 43 and 45, and the driven member 53. All may be composed of gears or frictional differences. That is, these components may constitute a gear train or a friction shield as a whole.

According to the present embodiment, the output unit 51 includes a driven member 53 and an output shaft 55 engaged with the first internal member 13 of the first rotor 11c of the final stage. It is not limited. For example, the output unit 51 may utilize the first rotor 11c of the final stage as a driven member, and output a rotational force by coupling an output bracket (not shown) to the driven member.

According to the present embodiment, three first rotors 11a, 11b, 11c and two second rotors 12a, 12b are alternately arranged in five stages, that is, odd stages, and thus the first rotor ( 11c) is disposed at the final stage. However, the reverse rotation device according to the present invention is not limited thereto, and may include at least one first rotor and at least one second rotor. In addition, the same number of first rotors and second rotors may be arranged in even stages, in which case the second rotor is arranged in the final stage (see, for example, the second embodiment described later).

The housing 61 supports the first rotor 11a disposed at the input end and the first rotor 11c disposed at the final end, and the first rotor 11b, the second rotors 21a, 21b, and a plurality of central rotors. Is provided to surround the electric unit 31, the plurality of inversion unit 41, and the driven member 53. The housing 61 is rotatably supported by the transmission shaft 37, the inversion shaft 47, and the output shaft 55.

Referring to FIG. 2, the flow preventing part 71 prevents the flow of the first rotors 11a, 11b and 11c and the second rotors 21a and 21b. To this end, the flow preventing part 71 includes the first rotors 11a, 11b, and 11c and the first inverting member 43 adjacent to each other, and the second rotors 21a and 21b and the second transmission adjacent to each other. A flange disposed between the members 35. The flange has a ring shape, the side of the first inverting member 43 adjacent to the first rotors 11a, 11b, 11c and the side of the second transmission member 35 adjacent to the second rotors 21a, 21b. It is preferred that each is bonded to, but is not limited thereto. Accordingly, the flow preventing part 71 may maintain a constant axial gap between the first rotors 11a, 11b and 11c and the second rotors 21a and 21b.

As shown in FIG. 2, the reverse rotation apparatus according to the present embodiment includes a plurality of first transmission members 33 that are indirectly rotated with the first internal members 13 of the first rotors 11a, 11b, and 11c, respectively. It may further include a first auxiliary member 81 is disposed in the center of the first auxiliary member 81 to rotate in engagement with the plurality of first transmission member 33, the second internal member 23 of each of the second rotor (21a, 21b) similarly ) And a second auxiliary member 82 disposed in the center of the plurality of second inverting members 45 to be inwardly rotated to be engaged with the plurality of second inverting members 45 to rotate. The first and second auxiliary members 81 and 82 are connected by the first internal member 13 and the first transmission member 33 and the second internal member 23 and the second inversion member 45. By compensating for the radial load generated, it is possible to increase the mechanical stability of the reverse rotation device for fluid machines. In particular, when all members are made of a friction difference, the first and second auxiliary members 81 and 82 may also serve to reduce frictional losses.

With this configuration, the operation of the reverse rotation apparatus according to the first embodiment of the present invention will be described with reference to FIGS. 2 and 4 to 7.

In the reverse rotation apparatus according to the present embodiment, the first blades 15 of the first rotors 11a, 11b, and 11c are rotated in a first direction, for example counterclockwise, by the flow of the fluid, so that the first rotors 11a, The rotational force is generated in 11b and 11c, and the second blades 25 of the second rotors 21a and 21b rotate in a second direction opposite to the first direction, for example, in a clockwise direction, so that the second rotors 21a and 21b are rotated. To generate torque. Therefore, when the fluid flows into the reverse rotation device according to the present embodiment, each of the first rotors 11a, 11b, 11c rotates counterclockwise, and each of the second rotors 21a, 21b rotates clockwise. .

As shown in FIG. 4, when the input terminal of the reverse rotation device, that is, the first first rotor 11a rotates counterclockwise by the flow of the fluid, the first internal member of the first first rotor 11a ( The first plurality of first transmission members 33 engaged with 13 rotate integrally with the plurality of transmission shafts 37 counterclockwise, respectively.

As the first first transmission member 33 rotates counterclockwise, the first second transmission member 35 that is integrally rotated on the first first transmission member 33 and the transmission shaft 37 is also counterclockwise. The rotational force of the first first rotor 11a is transmitted while rotating in the direction. Accordingly, as shown in FIG. 6, the first first inversion member 43 engaged with the first second transmission member 35 rotates in a clockwise direction and transmits the rotational force of the first first rotor 11a. Receive. 6 illustrates an example in which three second driving members 35 and three first inverting members 43 mesh with each other to rotate. Engagement of each of the second transmission members 35 and each of the first inversion members 43 is made radially symmetric about the axes of the first rotors 11a, 11b, and 11c, thereby ensuring mechanical stability. .

As the first first inversion member 43 rotates in the clockwise direction, as shown in FIG. 5, the first second inversion that is integrally rotated on the first first inversion member 43 and the inversion shaft 47. The member 45 also rotates in a clockwise direction and receives the rotational force of the first first rotor 11a through the first first inversion member 43.

In addition, since the first second inversion member 45 is inscribed to the second internal member 23 of the first second rotor 21a, the clockwise rotation of the first second rotor 21a according to the flow of the fluid is performed. The rotational force is also transmitted. That is, the first second inversion member 45 receives the rotational force of the first first rotor 11a and the rotational force of the first second rotor 21a together.

On the other hand, between the first second rotor 21a and the second first rotor 11b, the second first inversion member 43 disposed downstream of the first second inversion member 45 and the second agent Rotation reversal occurs by the engagement of the first internal member 13 of the first rotor 11b and the second second transmission member 35 disposed upstream of the second first transmission member 33 which is inscribed in rotation.

The second first inversion member 43 rotates clockwise as the first second inversion member 45 rotates clockwise. Accordingly, as shown in FIG. 6, the second second transmission member 35 engaged with the second first inversion member 43 rotates in a counterclockwise direction, and the first first rotor 11a and the first The rotational force of the second second rotor 21a is received together.

As the second second transmission member 35 rotates in the counterclockwise direction, the inward rotation of the first internal member 13 of the second first rotor 11b downstream of the second second transmission member 35. The second first transmission member 33 also rotates counterclockwise to receive the rotational force of the first first rotor 11a and the first second rotor 21a together.

At this time, as shown in Figure 4, the second first transmission member 33 is also received a rotational force by the counterclockwise rotation of the second first rotor (11b) according to the flow of the fluid. That is, the second first transmission member 33 includes the second first transmission member together with the rotational force of the first first rotor 11a and the rotational force of the first second rotor 21a transmitted from the second transmission member 35 upstream. Receives the rotational force of the rotor 11b and rotates counterclockwise.

By repeating this process, the rotational force of all the rotors 11a, 11b, 21a, 21b upstream is indirectly rotated by the first internal member 13 of the first rotor 11c located at the final end. It is transmitted to the transmission member (33). At this time, since the final stage first transmission member 33 receives the rotational force of the final stage first rotor 11c, the final stage first transmission member 33 includes all the rotors 11a, 11b, 11c, 21a, 21b. The rotational force of) is transmitted together.

As the final stage first transmission member 33 rotates in a counterclockwise direction, as shown in FIG. 7, the driven members 53 externally rotating with the plurality of first transmission members 33 rotate clockwise. The output shaft 55 also rotates clockwise. Accordingly, the rotational forces of all the rotors 11a, 11b, 11c, 21a, 21b are transmitted to the output shaft 55 via the driven member 53.

According to the reverse rotation device for a fluid machine according to the first embodiment of the present invention, the first rotor (15) and the second blade (25) which are respectively rotated in the opposite direction in response to the flow of the fluid ( 11a, 11b, and 11c and the second rotors 21a and 21b are alternately arranged coaxially to convert the kinetic energy of the fluid input through the first wing 15 and the second wing 25 into mechanical energy. Can be output. In addition, by employing the CRP principle it is possible to lower the noise due to the hydrodynamic interaction of the first wing 15 and the second wing 25, it is possible to reduce the energy loss. In addition, since a simple combination of a modular gear train or frictional heat and a single output shaft 55 can transmit all rotational forces, a compact structure can achieve high energy transfer efficiency.

8 to 11 show a reverse rotation device according to a second embodiment of the present invention. Unlike the first embodiment described above, the reverse rotation device according to the present embodiment does not have a means for reversing rotation between the plurality of first rotors 11a and 11b and the plurality of second rotors 21a and 21b. It is characteristic. That is, the set of the second transmission member 35 and the first inversion member 43 for rotation reversal is disposed only upstream of the input end of the first rotors 11a and 11b. Accordingly, the arrangement of the flow preventing part 71 also differs when compared with the first embodiment. That is, it is sufficient to attach the flange only to the side surfaces of the first and second inversion members 43 and 45 disposed adjacent to the first and second internal members 13 and 23, respectively. In this case, the flange disposed between each of the first and second internal members 13 and 23 also serves as a spacer.

Hereinafter, the operation of the reverse rotation apparatus according to the second embodiment of the present invention.

As shown in FIG. 4 of the above-described first embodiment, when the first first rotor 11a is rotated counterclockwise by the flow of the fluid, the first internal member 13 of the first first rotor 11a is rotated. The first first transmission member 33 engaged with) rotates counterclockwise.

As the first first transmission member 33 rotates in the counterclockwise direction, the second transmission member 35 upstream thereof also rotates in the counterclockwise direction and receives the rotational force of the first first rotor 11a. Accordingly, the first inversion member 43 engaged with the second transmission member 35 receives the rotational force of the first first rotor 11a while rotating clockwise.

As the first inversion member 43 rotates in the clockwise direction, the first second inversion member 45 also rotates in the clockwise direction and receives the rotational force of the first first rotor 11a. At this time, since the first second inverting member 45 is inscribed in the second internal member 23 of the first second rotor 21a, the clockwise direction of the first second rotor 21a according to the flow of the fluid. The rotational force by rotation is also transmitted.

Similarly, the second first transmission member 33 receives the counterclockwise rotational force of the second first rotor 11b, and the second (final end) second reverse member 45 is second (final end). The clockwise rotational force of the second rotor 21b is received.

Here, since all of the first transmission members 33 which are inwardly rotated by the second transmission member 35 and the first rotors 11a and 11b of the input end are coupled to one transmission shaft 37 and rotate integrally, All rotational forces of the first rotors 11a and 11b are transmitted to the second transmission member 35 through the transmission shaft 37. Similarly, since the second inversion members 45 that rotate inwardly of the first inversion member 43 and the second rotors 21a and 21b of the input terminal are all coupled to one inversion shaft 47 and integrally rotated, All rotational forces of the two rotors 21a and 21b are also transmitted to the first inversion member 43 through the inversion shaft 47. In addition, the first inverting member 43 receives the rotational force of the first rotors 11a and 11b through engagement with the second driving member 35. In this way, the rotational force of the first rotors 11a and 11b and the rotational force of the second rotors 21a and 21b are both transmitted to the second inversion member 45 at the final stage, and the driven member engaged with the second inversion member 45. Output to the output shaft 55 via 53.

In the second embodiment of the present invention, although the second motor member 35 and the first inverting member 43 for rotation reversal are disposed at the input terminal, they may be disposed at the final stage as required by design, All may be arranged at the stage. When arranged at both the input end and the end, there is an advantage that the reverse load is distributed.

Although embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited thereto, and various modifications may be made without departing from the spirit of the present invention.

1 is a perspective view showing a reverse rotation device according to a first embodiment of the present invention.

Figure 2 is a longitudinal cross-sectional view of the reverse rotation device of Figure 1;

Figure 3 is a perspective view showing the arrangement of the electric unit and the reverse unit of the reverse rotation device of FIG.

4 is a view showing an engagement state of the first rotor and the first transmission member of the reverse rotation device of FIG.

FIG. 5 is a view illustrating an engaged state of a second rotor and a second inverting member of the reverse rotation device of FIG. 1.

FIG. 6 is a view illustrating an engaged state of a second electric member and a first inversion member of the reverse rotation device of FIG. 1.

FIG. 7 is a view illustrating an engaged state of a first rotor, a first transmission member, and an output unit of the reverse rotation device of FIG. 1.

8 is a perspective view showing a reverse rotation device according to a second embodiment of the present invention.

Figure 9 is a longitudinal cross-sectional view of the reverse rotation device of Figure 8;

10 is a perspective view showing an arrangement of the electric unit and the reverse unit of the reverse rotation device of FIG.

FIG. 11 is a view illustrating an engaged state of a second rotor, a second reverse member, and an output unit of the reverse rotation device of FIG. 8; FIG.

* List of Reference Numbers in Drawings

11a, 11b, 11c: First rotor 13: first internal member

15: 1st wing 21a, 21b: 2nd rotor

23: second internal member 25: second wing

31: electric unit 33: first electric member

35: second transmission member 37: transmission shaft

41: inversion unit 43: first inversion member

45: second inversion member 47: inverted shaft

51: output unit 53: driven member

55: output shaft 71: flow prevention portion

81: first auxiliary member 82: second auxiliary member

Claims (9)

At least one first rotor having an inscribed member formed on an inner circumferential surface thereof and configured to mount a plurality of wings that rotate in a first direction corresponding to the flow of the fluid on the outer circumferential surface; An inner member is formed on an inner circumferential surface, and a plurality of vanes rotating in a second direction opposite to the first direction is mounted on the outer circumferential surface, and at least alternately arranged coaxially with the first rotor One second rotor; A plurality of electric units disposed radially about an axis of the first rotor and receiving rotation from an internal member of the first rotor; A plurality of inverting units disposed radially about the axis of the second rotor between the plurality of electric units, inverting rotation of the plurality of electric units, and transmitting rotation to the inner member of the second rotor; ; And an output unit for outputting rotational forces of the first rotor and the second rotor. The method of claim 1, And the reversal between the electric unit and the reversal unit occurs between the first rotor and the second rotor. The method of claim 1, Reverse rotation device for a fluid machine, characterized in that the reversal between the electric unit and the reversal unit occurs at the initial input stage. The method of claim 3, Reverse rotation device for a fluid machine, characterized in that the inversion between the electric unit and the inversion unit also occurs at the final output stage. The method according to any one of claims 1 to 4, Each of the plurality of transmission units may include a first transmission member that is internally rotated by the internal member of the first rotor and a second transmission member which is coaxially disposed with the first transmission member and integrally rotates with the first transmission member. Including, Each of the plurality of inversion units may include: a first inversion member for inverting rotation of the second transmission member, and disposed coaxially with the first inversion member and integrally rotating with the first inversion member, such that And a second inversion member which rotates inwardly with the inscribed member. The method of claim 5, Reverse rotation device for a fluid machine, characterized in that the rotation ratio between the second transmission member and the first inversion member is 1: 1. The method of claim 5, And a flow preventing portion for preventing the flow of the first rotor and the second rotor. The method of claim 5, The output unit includes a driven member externally rotating with the second inversion member engaged with the first transmission member or the internal member of the second rotor, which is engaged with the internal member of the first rotor disposed at the final end, and the driven member. Reverse rotation device for a fluid machine comprising an output shaft coupled to the member. The method of claim 5, Disposed in the center of the plurality of first transmission members and the plurality of second inversion members respectively engaged with the first rotor and the second rotor except for the first rotor or the second rotor disposed at a final end of the The reverse rotation device for a fluid machine, characterized in that it further comprises an auxiliary member for external rotation with the first transmission member and the second inversion member.

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