JP2020198777A - Rotary machine housing - Google Patents

Abstract

To provide a rotary machine housing, lightweight, having high heat insulation, capable of withstanding the anti-torque of the rotary machine.SOLUTION: The rotary machine housing includes a cylindrical body and a cap portion for sealing at least one end of the body. At least part of the body is folded axially and has multiple partition structures that are separated. The cap portion has at least a dome-shaped mirror plate and a bottom plate covering an end opening of the body, and an annular convex portion protruding from the bottom plate.SELECTED DRAWING: Figure 2

Description

The present invention relates to a rotating machine housing.

In recent years, there has been a widespread demand for reduction of CO ₂ emissions from the viewpoint of preventing global warming. For example, aircraft are no exception, and there is a need to reduce CO ₂ emissions.

The source of CO ₂ emissions in aircraft is a jet engine, and it is being considered to reduce CO ₂ emissions by replacing this jet engine with a motor. For example, if a generator is rotated by using H ₂ as fuel and a motor is rotated by using the electric power from the generator, CO ₂ emission can be made free.

Since aircraft are required to have flight speed and cruising range, generators and motors mounted on aircraft are required to be lightweight and have high output (high output per unit mass). Therefore, as a rotating machine such as a generator or a motor, a superconducting rotating machine (superconducting generator or superconducting motor) is used.

In a superconducting rotary machine, the resistance of windings and the like is lowered by using superconductivity, and the problem of heat generation is less likely to occur even if the current is increased. Therefore, it becomes easy to use a large current, and the output per unit mass can be increased.

In order to obtain superconducting characteristics with a superconducting rotating machine, it is necessary to cool it to, for example, about the temperature of liquid nitrogen. From the viewpoint of heat insulation, the superconducting rotating machine is installed in, for example, a rotating machine housing and surrounded by a vacuum chamber (see, for example, Japanese Patent Application Laid-Open No. 2009-124886). By surrounding the superconducting rotating machine with a vacuum chamber in this way, the vacuum chamber is used as a heat insulating layer, and heat transfer from the outside is suppressed.

By the way, as long as the superconducting rotating machine is fixed, there is always a connection point with the rotating machine housing constituting the vacuum chamber. Further, since the rotating machine housing always has a portion in contact with the outside air, there is inevitably a heat transfer path connected by a solid (for example, a wall) from the outside air to the superconducting rotating machine via the connection point. For this reason, it is particularly required to configure the vacuum chamber so that the distance between the connection point and the heat transfer path between the superconducting rotor is long, or to avoid connecting solid members having different temperatures as much as possible. However, if the heat transfer path is lengthened, the thickness of the vacuum chamber is generally increased, and the vacuum chamber is enlarged, which leads to a heavy rotating machine housing.

However, when considering mounting on an aircraft, if the rotating machine housing is large and heavy, it has a large effect on flight speed and cruising range. Therefore, it is difficult to increase the size of the vacuum chamber in order to increase the distance of the heat transfer path.

In addition, the rotating machine housing needs to be openable and closable so that the rotating machine stored for maintenance can be easily accessed. Since it is not realistic to evacuate each time it opens and closes, it is necessary to divide the vacuum chamber at the opening and closing part. Then, a heat transfer path exists in the opening / closing portion, and the heat insulating property is further hindered.

JP-A-2009-124886

The present invention has been made based on the above circumstances, and an object of the present invention is to provide a rotating machine housing that is lightweight, has high heat insulating properties, and can withstand the anti-torque of the rotating machine.

One aspect of the present invention is a rotating machine housing provided with a cylindrical body portion and a cap portion that seals at least one end of the body portion.
The body portion forms a coaxial double cylinder, and a link portion for connecting the ends of these cylinders in the radial direction is provided, and the heat insulating vacuum chamber is formed by airtightly connecting the link portion and the coaxial double cylinder. At least a part of the link portion is folded in the axial direction to form a plurality of partition wall structures separated in the radial direction.
The cap portion has at least a dome-shaped end plate, a bottom plate covering the end opening of the body portion, and an annular convex portion protruding from the bottom plate.

In the rotating machine housing, the link portion forming the end of the heat insulating vacuum chamber is folded in the axial direction, and the plurality of partition walls are separated in the radial direction. Therefore, the heat transfer path of the rotating machine housing is , The plurality of separated partition walls are bypassed in the axial direction of the body portion and directed in the radial direction of the body portion. Therefore, it is possible to obtain a rotating machine housing having high heat insulation while having a small structure having a small body diameter.
Further, the rotating machine housing can be easily attached and detached while maintaining the heat transfer path for a long time by providing the plurality of separated partition walls at the fitting portion between the body portion and the cap portion. it can. Further, since the rotating machine housing can have a small structure having a small body diameter, it can easily withstand the anti-torque of the rotating machine.

It is preferable to provide a tension rod that can be fixed to the rotating machine on the inner surface side of the body portion by passing through the body portion in the radial direction from the outer surface of the body portion. By providing the tension rod as described above, the shaft of the rotating machine and the shaft of the housing for the rotating machine can be aligned, and the rotating machine can be operated stably.

The rotating machine may be a superconducting motor or a superconducting generator. The rotating machine housing can be particularly preferably used for a superconducting motor or a superconducting generator that needs to keep the storage portion of the rotating machine at an extremely low temperature.

It is preferable that the main components of the body portion and the cap portion are Ti or Ti alloy. By using Ti or a Ti alloy as the main components of the body portion and the cap portion in this way, it is possible to reduce the weight while maintaining the strength.

As described above, the rotating machine housing of the present invention is lightweight, has high heat insulating properties, can withstand the anti-torque of the rotating machine, and can be easily maintained.

FIG. 1 is a schematic perspective view showing a state in which the cap portion of the rotating machine housing according to the embodiment of the present invention is removed. FIG. 2 is a schematic cross-sectional view showing a state in which the cap portion of the rotary machine housing of FIG. 1 is attached. FIG. 3 is a schematic enlarged partial cross-sectional view showing a fitting portion between the body portion and the cap portion of the rotating machine housing of FIG. FIG. 4 is a schematic enlarged partial cross-sectional view showing a structural example of the tension rod of the rotating machine housing of FIG.

Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings as appropriate.

As shown in FIGS. 1 and 2, the rotating machine housing 1 of the present invention is a housing for storing the rotating machine. "Rotating machine" is a general term for machines that rotate around an axis. The rotating machine may be a superconducting motor or a superconducting generator. The rotating machine housing 1 can be suitably used for a superconducting motor or a superconducting generator that needs to keep the storage portion of the rotating machine at an extremely low temperature. Further, the rotating machine housing 1 can be particularly preferably used for an aircraft engine system using a superconducting rotating machine, which requires a small and highly heat-insulating housing.

Hereinafter, in FIG. 2, the superconducting motor X is stored. Hereinafter, an example in which the superconducting motor X is stored will be described, but it does not mean that the rotating machine stored in the rotating machine housing 1 is limited to the superconducting motor.

Further, the rotating machine housing 1 includes a cylindrical body portion 10, a pair of cap portions 20 for sealing both ends of the body portion 10, a tension rod 30, and a cryogen flow path 40.

The main components of the body 10 and the cap 20 can be Fe, Ti, alloys thereof, metals such as stainless steel, reinforced resin (FRP), etc., but the main components of the body 10 and the cap 20 are Ti. Alternatively, a Ti alloy is preferable. By using Ti or a Ti alloy as the main component of the body portion 10 and the cap portion 20 in this way, it is possible to reduce the weight while maintaining the strength. Examples of the Ti alloy include an alloy obtained by adding one or more of Al, Sn, V, Cr and the like to Ti.

Hereinafter, the superconducting motor X housed in the rotating machine housing 1 and the body portion 10, the pair of cap portions 20, and the tension rod 30 which are each component of the rotating machine housing 1 will be described in detail.

<Superconducting motor>
The superconducting motor X includes a shaft X1, a rotor X2 that rotationally drives the shaft X1 by its own rotation, and a stator X3 that is arranged concentrically with the rotation shaft of the rotor X2 and surrounds the rotor X2. Further, the shaft X1 drives, for example, a fan of an aircraft engine.

It is possible to configure only one of the rotor X2 and the stator X3 using a superconducting material, but as the superconducting motor X to be stored in the rotating machine housing 1, both the rotor X2 and the stator X3 are superconducting materials. It is preferable to use a so-called all-superconducting motor.

<Body>
The body portion 10 has a cylindrical shape and has a vacuum chamber 11. Further, the body portion 10 has annular recesses 12 extending over the entire circumference at both ends. Further, the body portion 10 has a pair of end flanges 13 provided at both ends and a central flange 14 provided at the center of the body portion 10 in the axial direction.

The average diameter and axial length of the body portion 10 are appropriately determined according to the size of the stored superconducting motor X.

(Vacuum chamber)
The vacuum chamber 11 functions as a heat insulating layer, and prevents heat from the outside of the body portion 10 from being transferred to the superconducting motor X stored in the rotating machine housing 1.

The vacuum chamber 11 is provided over the entire circumference of the body portion 10. Further, the vacuum chamber 11 is provided over the entire length of the body portion 10. In such a vacuum chamber 11, the cylindrical outer cylinder 10a, the cylindrical inner cylinder 10b provided coaxially with the inside of the outer cylinder 10a, and the outer cylinder 10a and the inner cylinder 10b are airtightly closed at both ends thereof. , By joining the link portion 10c having the annular recess 12, it can be configured inside the link portion 10c.

As shown in FIG. 3, the vacuum chamber 11 of the body portion 10 has a bifurcated cross section in the radial direction of the body portion 10 by a recess 12. Specifically, as shown in FIG. 3, the outer vacuum chamber 11a is in contact with the radial outer side of the outer peripheral wall 12a of the annular recess 12, and the inner vacuum chamber is radially inside the inner peripheral wall 12b of the concave portion 12. 11b is in contact. That is, the body portion 10 has a plurality of partition walls in which the outer cylinder 10a, the outer peripheral wall 12a, the inner peripheral wall 12b, and the inner cylinder 10b are vertically folded from the outside, and a part thereof is separated from each other. Have.

The outer vacuum chamber 11a and the inner vacuum chamber 11b are provided over the entire circumference of the recess 12. Further, the outer vacuum chamber 11a is preferably provided over the entire length of the outer peripheral wall 12a, and the inner vacuum chamber 11b is preferably provided over the entire length of the inner peripheral wall 12b. By providing the outer vacuum chamber 11a and the inner vacuum chamber 11b over the entire length of the outer peripheral wall 12a and the inner peripheral wall 12b in this way, the heat transfer path can be lengthened, so that the heat insulating property of the rotating machine housing 1 can be extended. Can be enhanced.

The average thickness of the outer cylinder 10a as the outer wall surrounding the vacuum chamber 11, the inner cylinder 10b as the inner wall, and the thermal link portion 10c as the end wall is appropriately determined according to the size of the stored superconducting motor X and the internal decompression. It is determined.

(Recess)
The lower limit of the depth of the recess 12 (the distance between the end surface of the end opening and the bottom surface of the recess 12) is preferably 1%, more preferably 5%, and even more preferably 10% of the total length of the body portion 10. On the other hand, the upper limit of the depth of the recess 12 is preferably 20%, more preferably 30%, and even more preferably 40%. If the depth of the recess 12 is less than the above lower limit, the heat transfer path may be shortened, and the heat insulating property of the rotating machine housing 1 may be lowered. On the contrary, if the depth of the recess 12 exceeds the above upper limit, it may be difficult to fix the recess 12 in the vacuum chamber 11 while securing the outer vacuum chamber 11a and the inner vacuum chamber 11b.

(End flange)
The pair of end flanges 13 are provided so as to project from the outer wall surface of the body portion 10 over the entire circumference of the body portion 10.

The end flange 13 is configured to come into contact with the end flange 23 of the cap portion 20, which will be described later, when the cap portion 20 is fitted to the body portion 10. A sealing material such as an O-ring is provided on the surface where the end flange 13 of the body portion 10 and the end flange 23 of the cap portion 20 are in contact with each other, and the area for storing the superconducting motor X can be airtightly held.

(Center flange)
The central flange 14 is provided so as to project from the outer wall surface of the body portion 10 over the entire circumference of the body portion 10. The central flange 14 prevents the body portion 10 from bending. It is also used as a base on which the tension rod 30, which will be described later, is provided.

<Cap part>
The cap portion 20 has a vacuum chamber 21. The cap portion 20 has an annular convex portion 22 that can be fitted with the concave portion 12 of the body portion 10 over the entire circumference. Further, the cap portion 20 has an end flange 23 that comes into contact with the end flange 13 of the body portion 10 when the concave portion 12 and the convex portion 22 are fitted.
Further, the cap portion has a reinforcing material portion that crosses the vacuum chamber 21 in the vacuum chamber 21 in the substantially axial direction and connects the end plate 20a and the bottom plate 20b.

(Vacuum chamber)
The vacuum chamber 21 functions as a heat insulating layer, and suppresses heat from the outside of the cap portion 20 from being transferred to the superconducting motor X stored in the rotating machine housing 1.

The vacuum chamber 21 is provided so as to cover the surface of the cap portion 20 in contact with the region facing the space in which the superconducting motor X is stored. Such a vacuum chamber 21 has a dome-shaped end plate 20a, a bottom plate 20b that covers the end opening of the body portion 10, and an annular convex portion 22 that airtightly closes the end plate 20a and the bottom plate 20b at the end portions. By joining the link portion 20c, it can be configured inside the link portion 20c.

As shown in FIG. 3, the vacuum chamber 21 enters the convex portion 22. That is, as shown in FIG. 3, the vacuum chamber 21 includes the convex portion vacuum chamber 21a provided in the convex portion 22. By including the convex vacuum chamber 21a, the outer peripheral wall 12a constituting the concave portion 12 of the body portion 10 and the inner peripheral wall 12b are separated in the radial direction even when the concave portion 12 and the convex portion 22 are fitted. Can be kept in a good condition.

The convex portion vacuum chamber 21a is provided over the entire circumference of the convex portion 22. Further, it is preferable that the convex portion vacuum chamber 21a is provided over the entire height of the convex portion 22. By providing the convex portion vacuum chamber 21a over the entire height of the convex portion 22 in this way, the heat transfer path can be lengthened, so that the heat insulating property of the rotating machine housing 1 can be improved.

The average thickness of the end plate 20a and the bottom plate 20b surrounding the vacuum chamber 21 can be the same as the average thickness of the outer wall surrounding the vacuum chamber 11 of the body portion 10.

(Convex part)
The annular convex portion 22 is arranged so as to protrude from the bottom plate 20b. That is, the cap portion 20 has a dome-shaped end plate 20a, a bottom plate 20b that covers the end opening of the body portion 10, an annular convex portion 22 that protrudes from the bottom plate 20b, and a reinforcing material portion 50.

The height of the convex portion 22 (the radial length of the cap portion 20) is not particularly limited as long as it can be fitted with the concave portion 12, but it is preferably substantially equal to the depth of the concave portion 12. By making the height of the convex portion 22 substantially equal to the depth of the concave portion 12, the heat transfer path can be lengthened, so that the heat insulating property of the rotating machine housing 1 can be improved.

The convex portion 22 may be fitted with the concave portion 12 without a gap, but there may be a gap such that the cryogen introduced from the cryogen flow path 40 described later does not easily flow, for example, a gap of 0.5 mm or less. In addition, it is preferable that a sealing material that can prevent the cooling bath from leaking out is provided. The position of the sealing material is preferably a position where the link portion 10c of the body portion 10 and the bottom plate 20b are in contact with each other and the inner diameter side is closer to the recess 12. As the sealing material, a metal packing or the like that can be used even at a low temperature can be used.
(Reinforcing material part)
The reinforcing material portion 50 is arranged in the vacuum chamber 21 and connects the end plate 20a and the bottom plate 20b. The presence of the reinforcing material portion 50 prevents the bottom plate 20b from being pushed by the outside air and bending in the direction of the end plate 20a when the vacuum portion 21 of the cap portion 20 is evacuated, thereby preventing the link portion 20c from being deformed. it can. That is, it has the effect of maintaining the shape of the entire cap portion 20 even after the vacuum chamber 21 is evacuated and facilitating the fitting of the convex portion 22 and the concave portion 12.
Further, the reinforcing material portion 50 has an effect of facilitating the close contact between the link portion 10c of the body portion 10 and the bottom plate 20b when the cap portion 20 is connected to the body portion 10. This is because, as described above, when the vacuum portion 21 of the cap portion 20 is evacuated, the effect of the sealing material can be lessened by suppressing the bottom plate 20b from bending outward in the axial direction. is there.
Further, it is desirable that the reinforcing material portion 50 is formed of FRP or the like having low thermal conductivity. This is because there is a difference in temperature between the end plate 20a and the bottom plate 20b, so that it is difficult for heat to enter the space where the superconducting motor X is stored from the outside of the housing.
The reinforcing material portions 50 do not need to be formed in a cylindrical shape around the shaft of the housing, and may be simply arranged at equal intervals around the shaft. The total area of the cross section perpendicular to the housing axis of the reinforcing material portion is sequentially determined by the balance between the amount of heat penetration that passes through the reinforcing material portion and enters the bottom plate from the end plate and the effect of suppressing the deformation of the cap portion.

(End flange)
The end flange 23 is provided so as to extend from the outer periphery of the bottom plate 20b. When the cap portion 20 is fitted to the body portion 10 as described above, the end flange 23 is in contact with the end flange 13 of the body portion 10 and is fixed. As a result, the rotating machine housing 1 can airtightly hold the area for storing the superconducting motor X. The method of fixing the end flange 13 of the body portion 10 and the end flange 23 of the cap portion 20 is not particularly limited, but for example, a method of tightening with bolts can be used. At that time, it is preferable that a sealing agent such as an O-ring is sandwiched between the end flange 13 of the body portion 10 and the end flange 23 of the cap portion 20.

<Tension rod>
As shown in FIG. 4, the tension rod 30 can pass through the body portion 10 in the radial direction from the outer surface of the body portion 10 and can be fixed to the superconducting motor X which is a rotating machine on the inner surface side of the body portion 10. By providing the tension rod 30 as described above, the shaft of the superconducting motor X and the shaft of the rotating machine housing 1 can be aligned, and the superconducting motor X can be operated stably.

The tension rod 30 is configured to keep the distance between the outer cylinder 10a and the inner cylinder 10b constant. The configuration of such a tension rod 30 is not particularly limited, but can be configured as shown in FIG. 4, for example.

The tension rod 30 shown in FIG. 4 has a first support rod 31 provided between the outer cylinder 10a and the inner cylinder 10b, and a second support rod 32 provided between the inner cylinder 10b and the stator X3. By providing the support rods separately in this way, the structure does not penetrate the inner cylinder 10b, so that the degree of vacuum of the vacuum chamber 11 of the body portion 10 can be easily maintained.

The material of the first support rod 31 and the second support rod 32 is not particularly limited as long as it is hard and has low flexibility, but a reinforced resin (FRP) is preferable from the viewpoint of low thermal conductivity and light weight.

It is preferable that one end of the first support rod 31 is connected to the outer cylinder 10a directly below the central flange 14 of the body portion 10, and the other end is connected to the inner cylinder 10b directly below the central flange 14 of the central flange 14. The connecting method is not particularly limited, but as shown in FIG. 4, for example, a screw structure having a spiral groove can be used.

At this time, as shown in FIG. 4, it is preferable that the inner cylinder 10b is provided with a screw groove convex portion 33. Since the inner cylinder 10b is thin, the strength can be maintained by providing the screw groove convex portion 33 in this way, and the distance between the outer cylinder 10a and the inner cylinder 10b can be controlled with high accuracy. Further, a removable covering portion 34 may be provided on the central flange 14 side so that the position of the first support rod 31 can be adjusted from the covering portion 34. With this configuration, the distance between the outer cylinder 10a and the inner cylinder 10b can be adjusted. Since the covering portion 34 is removable, it is configured to ensure airtightness at the time of mounting by an O-ring or the like.

The length of the first support rod 31 is made larger than the distance between the outer cylinder 10a and the inner cylinder 10b that are desired to be kept constant. As a result, the adjustment allowance for the distance between the outer cylinder 10a and the inner cylinder 10b can be earned.

One end of the second support rod 32 is connected to the inner surface side of the inner cylinder 10b so as to face the side end portion of the inner cylinder 10b of the first support rod 31, and the other end is the stator X3 immediately below the connection position in the radial direction. It should be connected to.

The connecting method is not particularly limited, and like the first support rod 31, a screw structure having a spiral groove can be used, for example, as shown in FIG. Specifically, the second support rod 32 can be configured to penetrate the stator X3 from the inside of the stator X3 and fit into the screw hole on the inner cylinder 10b side. At this time, it is preferable that one end of the second support rod 32 located inside the stator X3 does not protrude inward from the inner peripheral edge of the stator X3.

The tension rods 30 may be provided at only one location, but are preferably provided at a plurality of locations. For example, the tension rods 30 may be provided at two locations facing each other in the radial direction of the body portion 10 or at four locations rotated by 90 °. Can be done.

<Cooling bath flow path>
The freezing bath flow path 40 is a pipe for introducing the freezing bath from the outside of the rotating machine housing 1 into a region for storing the superconducting motor X.

The cryogen flow path 40 is composed of a pair of a pipe for supplying the cryogen and a pipe for discharging the cryogen. In the rotating machine housing 1, as shown in FIG. 2, the cryogen flow path 40 is provided so as to penetrate the vacuum chamber 21 from the end plate 20a of the cap portion 20 and open at the bottom plate 20b. The arrangement position of the flow path 40 is not limited to this. Further, the piping for supplying the cryogen and the piping for discharging the cryogen may be arranged at different positions.

As the cryogen introduced from the cryogen flow path 40, for example, liquid nitrogen is used, although it depends on the cooling temperature required by the superconducting motor X.

<Advantage>
In the rotating machine housing 1, a part of the body portion 10 is folded in the axial direction and a plurality of partition walls are separated from each other. Therefore, the heat transfer path of the rotating machine housing 1 is the plurality of separated partition walls. In the radial direction of the body portion 10 while detouring in the axial direction of the body portion 10. Therefore, it is possible to obtain a rotating machine housing 1 having a high heat insulating property while having a small structure having a small diameter of the body portion 10. Further, the rotating machine housing 1 has a configuration in which the plurality of separated partition walls are provided in the fitting portion between the body portion 10 and the cap portion 20 so that the heat transfer path can be maintained for a long time and can be easily attached and detached. can do. Further, since the rotating machine housing 1 can have a small structure having a small diameter of the body portion 10, it can easily withstand the anti-torque of the rotating machine.

[Other Embodiments]
The present invention is not limited to the above-described embodiment, and can be implemented in various modifications and improvements in addition to the above-described embodiment.

In the above embodiment, the configuration in which the body portion is joined to the outer cylinder, the inner cylinder, and the link portion has been described, but the configuration of the body portion is not limited to this, and parts having a different shape are combined to form the body portion. You can also do it.

In the above embodiment, the configuration in which the body portion has a central flange provided at the center in the axial direction has been described, but instead of the central flange, a plurality of flanges may be provided at intervals in the axial direction. In this case, the tension rod may be provided on all flanges or some flanges. The above intervals are preferably equal intervals, but are not limited to equal intervals.

In the above embodiment, the case where the rotating machine housing includes the tension rod has been described, but the tension rod is not an essential component and may be omitted.

In the above embodiment, the case where the pair of cap portions are removable has been described, but it is also an object of the present invention to have a rotating machine housing in which either one or both of the pair of cap portions cannot be attached or detached. Even with these configurations, the same effect as when the pair of cap portions can be attached and detached can be obtained.

In the above embodiment, the case where a pair of cap portions for sealing both ends of the body portion is provided has been described, but a rotating machine housing provided with one cap portion for sealing one end of the body portion is also intended by the present invention. By the way. In this case, the body has a bottomed tubular shape in which the end opposite to one end is closed, and a vacuum chamber is also formed at the bottom of the body. Further, the end flange on the closed side may be omitted.

As described above, the rotating machine housing of the present invention is lightweight, has high heat insulating properties, and can withstand the anti-torque of the rotating machine. Therefore, the rotating machine housing of the present invention can be suitably used for a superconducting rotating machine.

1 Rotating machine housing 10 Body 10a Outer cylinder 10b Inner cylinder 10c Link 11 Vacuum chamber 11a Outer vacuum chamber 11b Inner vacuum chamber 12 Recess 12a Outer peripheral wall 12b Inner peripheral wall 13 End flange 14 Central flange 20 Cap portion 20a End plate 20b Bottom plate 20c Link part 21 Vacuum chamber 21a Convex part Vacuum chamber 22 Convex part 23 End flange 30 Tension rod 31 First support rod 32 Second support rod 33 Convex part for screw groove 34 Covering part 40 Cooling bath X Superconducting motor X1 Shaft X2 Rotor X3 Stator

Claims (4)

A rotating machine housing including a cylindrical body portion and a cap portion that seals at least one end of the body portion.
The body portion has a plurality of partition wall structures in which at least a part thereof is folded in the axial direction and separated from each other.
A housing for a rotating machine having a cap portion having at least a dome-shaped end plate, a bottom plate covering an end opening of the body portion, and an annular convex portion protruding from the bottom plate. The chassis for a rotating machine according to claim 1, further comprising a tension rod that passes through the body in the radial direction from the outer surface of the body and can be fixed to the rotating machine on the inner surface side of the body. The rotor housing according to claim 1 or 2, wherein the rotating machine is a superconducting motor or a superconducting generator. The rotary machine housing according to claim 1, claim 2 or claim 3, wherein the main components of the body portion and the cap portion are Ti or a Ti alloy.

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