Gas Supply Equipment

Abstract

The present invention relates to a gas supply device (1) comprising a shaft (7) supported in a housing (15) for rotation about a rotation axis (13) and a temperature regulating mechanism (11) including a medium temperature regulating part (12) surrounding the shaft (7), the medium temperature regulating part (12) being combined with a gas temperature regulating part (20). In order to improve the gas supply device (1) functionally and / or in terms of production technology, the temperature adjustment mechanism (11) comprises a temperature adjustment sleeve (14) with a first temperature adjustment guidance geometry (18) that is configured for the flow guidance of a temperature adjustment medium and that opens radially outward, and a gas temperature adjustment ring (24) with a second temperature adjustment guidance geometry (21) that opens radially outward for temperature adjustment of a gas, the gas temperature adjustment ring (24) defining the first temperature adjustment guidance geometry (18) radially inwardly and / or in the axial direction and radially outwardly by the housing body (16), the gas temperature adjustment ring (24) comprising a sleeve-shaped basic body (29) that is combined with a pattern sheet that is used to realize the second temperature adjustment guidance geometry (21) that opens radially outwardly.

Description

[Technical field]

[0001] The present invention relates to a gas supply device comprising a shaft supported in a housing so as to be rotatable about a rotation axis and a temperature adjustment mechanism including a medium temperature adjustment portion surrounding the shaft, the medium temperature adjustment portion being combined with a gas temperature adjustment portion. [Background technology]

[0002] From EP 1 299 436 A1 an air supply device, in particular for fuel cell systems, is known which is implemented as a turbomachine and has a compressor, a drive and a shaft, the compressor having a rotating wheel arranged on the shaft, a compressor input and a compressor output, which can transport a working fluid from the compressor input to the compressor output, at which a drive cooling channel for cooling the drive branches off.From EP 1 299 436 A1 a cooling unit for an air compressor is known which comprises a spiral casing, a rotating wheel which is attached to the spiral casing and a motor which drives the rotating wheel, the motor and the bearing which supports the rotating shaft of the motor are cooled on the discharge side of the rotating wheel with air, the cooling unit having a number of refrigerant lines arranged radially in a motor housing which is connected to the spiral casing, through which a refrigerant flows, and lines for the air to be cooled which are formed between the refrigerant lines of the motor housing and through which air flows. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] German Patent Application Publication No. 102018201162A1 [Patent Document 2] German Patent Application Publication No. 102014224774A1 Summary of the Invention [Problem to be solved by the invention]

[0004] The object of the present invention is to provide a functional and / or manufacturing technology improvement to a gas supply device which comprises a shaft supported in a housing so as to be rotatable about its axis of rotation and a temperature regulating mechanism including a medium temperature regulating part surrounding the shaft, the medium temperature regulating part being combined with a gas temperature regulating part. [Means for solving the problem]

[0005] This object is achieved by a gas supply device comprising a shaft rotatably supported in a housing about its axis of rotation and a temperature adjustment mechanism including a medium temperature adjustment device surrounding the shaft, the medium temperature adjustment device being combined with a gas temperature adjustment device, the temperature adjustment mechanism comprising a temperature adjustment sleeve configured for the flow guidance of a temperature adjustment medium and having a first temperature adjustment guide geometry opening radially outward, and a gas temperature adjustment ring for temperature adjustment of the gas with a second temperature adjustment guide geometry opening radially outward, the gas temperature adjustment ring comprising a sleeve-like basic body defining the first temperature adjustment guide geometry radially inward and / or in the axial direction and defined radially outward by the housing body, the gas temperature adjustment ring comprising a sleeve-like basic body combined with a pattern sheet for realizing the second temperature adjustment guide geometry opening radially outward. The first temperature adjustment guide geometry opening radially outward comprises, for example, a temperature adjustment medium guide structure, for example a temperature adjustment medium line through which a preferably fluid temperature adjustment medium flows. The first temperature-regulating guidance geometry defines a temperature-regulating medium guidance structure at the temperature-regulating sleeve, preferably radially inward and axially. The temperature-regulating medium guidance structure is not defined radially outward by the temperature-regulating sleeve. The temperature-regulating medium guidance structure of the first temperature-regulating guidance geometry, which opens radially outward, is defined at least in an axial portion by a gas temperature-regulating ring. According to one embodiment, the first temperature-regulating guidance geometry, which opens radially outward, is defined in an axial portion at one end of the temperature-regulating sleeve by a gas temperature-regulating ring. However, it is also possible that the first temperature-regulating guidance geometry, which opens radially outward, of the temperature-regulating sleeve is defined by a gas temperature-regulating ring over its entire axial dimension. The term axial direction refers to the axis of rotation of the shaft. Axial direction means in the direction of this axis of rotation or parallel to it. Correspondingly, radial direction means transverse to this axis of rotation.The gas temperature adjustment ring has the form of a substantially annular disk with a rectangular cross section. Radially inwardly, the gas temperature adjustment ring has the form of a substantially right cylindrical jacket. With at least one axial section of this right cylindrical jacket, the gas temperature adjustment ring defines a first temperature adjustment guide geometry formed in the temperature adjustment sleeve and opening radially outward. Alternatively or additionally, the gas temperature adjustment ring defines in the axial direction the first temperature adjustment guide geometry of the temperature adjustment sleeve. That is to say, with an end face, the gas temperature adjustment ring defines, for example, a temperature adjustment medium duct arranged in the temperature adjustment sleeve and opening axially. At this end face and / or radially inwardly, the temperature adjustment medium to be temperature adjusted flows along the gas temperature adjustment ring. Radially outwardly, the gas flows back around a second temperature adjustment guide geometry opening radially outward. The second temperature adjustment guide geometry opening radially outward is embodied in the gas temperature adjustment ring, preferably with a pattern sheet. By means of the pattern sheet, several completely different temperature control guide geometries that open radially outward can be realized in a gas temperature control ring in a simple manner. The sleeve-shaped basic body has essentially the form of a right cylindrical jacket. Due to this geometrically simpler form than before, the sleeve-shaped basic body can be produced cost-effectively, for example by cutting manufacturing methods. The sleeve-shaped basic body can be produced cost-effectively, for example by turning processes, with or without a flange. The pattern sheet can likewise be produced cost-effectively, for example from a metal sheet material. The second temperature control guide geometry that opens radially outward is advantageously incorporated into the sheet material, for example by deep drawing. The pattern sheet thus produced can then be bent round before being joined to the sleeve-shaped basic body.

[0006] The gas supply device is, for example, a compressor, in particular an air compressor, which is used to provide compressed air in a fuel cell system. The compressor may include one rotating wheel. However, the compressor may also include several rotating wheels. Alternatively or additionally, the compressor may comprise at least one turbine wheel. The compressor is then also called a turbocompressor or turbomachine. The gas supply device may be driven exclusively by at least one turbine.

[0007] An advantageous embodiment of the gas supply device is characterized in that the gas supply device comprises an electric drive, which drives the shaft and is surrounded by a medium temperature adjustment device. The electric drive of the gas supply device preferably comprises an electric motor with a stationary stator, inside which a rotor is rotatably arranged. The temperature adjustment guide geometry embodied with the temperature adjustment sleeve is used to embody a plurality of hollow spaces through which the temperature adjustment medium flows, in particular in conjunction with a housing body that radially surrounds the temperature adjustment sleeve on the outside. The claimed temperature adjustment mechanism embody a heat exchanger including a temperature adjustment sleeve and a gas temperature adjustment ring with a sleeve-shaped basic body and a pattern sheet. The temperature adjustment sleeve embody an inner part. The gas temperature adjustment ring embody a central part. The housing body embody an outer part. The temperature control mechanism with an inner part, a central part and an outer part is arranged in an annular space defined radially inwardly by the electric drive, in particular by a stator of the electric drive, and the annular space is open radially outwardly or defined by a housing or an assembled structure. Between the inner part and the central part, for example, at least one temperature control medium line is formed, through which a temperature control medium to be temperature controlled, for example a water-glycol mixture, flows. Between the central part and the outer part, a gas guiding structure is formed, for example, with at least one gas line, through which a gas to be cooled flows. To seal both temperature control guiding geometries, a packing, such as an O-ring, is preferably provided.

[0008] A further advantageous embodiment of the gas supply device is characterized in that the sleeve-like basic body has the form of a right cylindrical jacket, so that the desired fluid separation between the two temperature control induction geometries in order to allow heat exchange between the temperature control medium and the gas and vice versa can be realized by simple means in terms of manufacturing technology.

[0009] A further advantageous embodiment of the gas supply device is characterized in that the sleeve-shaped basic body has a collar at one end. The collar defines a second temperature adjustment guide geometry at one axial end of the sleeve-shaped basic body, which opens radially outward. Furthermore, the collar advantageously has a receiving groove for receiving a packing, in particular an O-ring, thereby enabling a tight seal between the gas temperature adjustment ring and the housing body. Furthermore, the collar simplifies the mounting and / or positioning of the pattern sheet.

[0010] A further advantageous embodiment of the gas supply device is characterized in that the pattern sheet is welded and / or frictionally connected to the sleeve-shaped basic body, thus providing a stable connection between the pattern sheet and the sleeve-shaped basic body in a simple manner.

[0011] A further advantageous embodiment of the gas supply device is characterized in that the pattern sheet has, on the side facing away from the sleeve-shaped basic body, a gas guide surface with raised areas for realizing a second temperature adjustment guide geometry opening radially outward. The raised areas are used for realizing temperature adjustment guide elements in the gas guide surface, along which the gas is guided for temperature adjustment during operation of the gas supply device. The second temperature adjustment guide geometry opening radially outward is defined radially inside by the pattern sheet in the assembled state of the gas temperature adjustment ring. The temperature adjustment guide geometry opening radially outward of the gas temperature adjustment ring is defined radially outside by the housing body. In the axial direction, the temperature adjustment guide geometry is preferably defined by a flange at the end of the sleeve-shaped basic body. The raised areas used for realizing the temperature adjustment guide elements may have different geometries. These geometries include prisms with a square basic structure. The angles of the prisms may all be 90 degrees. However, the prisms may have different angles. The prisms may have a triangular, pentagonal or hexagonal basic structure. The temperature adjustment inductive element may be cylindrical. The temperature adjustment inductive element may have an elliptical cross section. The basic shape of the raised area for the realization of the temperature adjustment inductive element may have a cross section that varies in the radial direction, for example in the height direction, such as a cone. The raised area may be formed as a cone or as a partial cone. The temperature adjustment inductive element may have a symmetrical profile in the cross section. However, the temperature adjustment inductive element may have an asymmetrical profile in the cross section or another conical profile. For example, the temperature adjustment inductive element may have a drop-shaped cross section. All basic shapes of the raised area may be combined with a cross section that varies in the radial direction, i.e. in particular in the case of a cone. The raised areas may be evenly distributed on the pattern sheet. However, if necessary, the spacing between the individual raised areas may also be different. All raised areas may have the same height starting from the gas guide surface. However, in other embodiments, the raised areas may have different heights.Any combination of the individual geometric shapes as previously described may be used within the pattern sheet.

[0012] In the method for producing a temperature control device for a gas supply device as described above, the object is achieved by deforming a sheet material in order to form a gas guide surface with a raised area for realizing a second temperature control guide geometry opening radially outwardly. The raised area for realizing a second temperature control guide geometry opening radially outwardly is particularly preferably incorporated into the sheet material by deep drawing.

[0013] An advantageous embodiment of the method is characterized in that the sheet material to be deformed is bent and joined at the two ends to produce a patterned sheet sleeve, which is then joined to a sleeve-like basic body to embody a gas temperature regulating ring which is mounted on the temperature regulating sleeve. In this way, a gas temperature regulating ring with an enlarged gas guide surface along which gas is guided for temperature regulation is simply produced.

[0014] A further advantageous embodiment of the method is characterized in that the sheet material to be deformed is bent around and connected to a sleeve-like basic body, thereby realizing the gas temperature regulating ring, the connection to the sleeve-like basic body being preferably produced by welding, which can be produced, for example, by brazing or welding.

[0015] The invention furthermore relates to a gas temperature regulating ring for a gas supply device as described above, in particular to a sleeve-like basic body and / or a pattern sheet or a pattern sheet sleeve.

[0016] The invention also relates to a fuel cell system, possibly comprising a gas supply device as described above, which is preferably implemented as an air supply device, used in the fuel cell system for compressing air which is supplied to a fuel cell stack in the fuel cell system.

[0017] Further advantages, features and details of the invention will become apparent from the following description in which various embodiments are described in detail with reference to the drawings. [Brief description of the drawings]

[0018] [Figure 1] 1 is a schematic diagram in longitudinal section of an air supply device according to a first embodiment, implemented as a compressor, with a cooling mechanism including a refrigerant cooling part combined with an air cooling part; FIG. [Diagram 2] FIG. 2 shows a portion of FIG. 1 according to a slightly modified alternative embodiment of the embodiment shown in FIG. [Diagram 3] 3A and 3B show different views and illustrations of an embodiment of a gas temperature adjusting ring of the compressor shown in FIGS. 1 and 2, realized using a patterned sheet. [Figure 4] 3A and 3B show different views and illustrations of an embodiment of a gas temperature adjusting ring of the compressor shown in FIGS. 1 and 2, realized using a patterned sheet. [Diagram 5] 3A and 3B show different views and illustrations of an embodiment of a gas temperature adjusting ring of the compressor shown in FIGS. 1 and 2, realized using a patterned sheet. [Figure 6] 3A and 3B show different views and illustrations of an embodiment of a gas temperature adjusting ring of the compressor shown in FIGS. 1 and 2, realized using a patterned sheet. [Figure 7] 3A and 3B show different views and illustrations of an embodiment of a gas temperature adjusting ring of the compressor shown in FIGS. 1 and 2, realized using a patterned sheet. [Figure 8] 3A and 3B show different views and illustrations of an embodiment of a gas temperature adjusting ring of the compressor shown in FIGS. 1 and 2, realized using a patterned sheet. [Figure 9] 3A and 3B show different views and illustrations of an embodiment of a gas temperature adjusting ring of the compressor shown in FIGS. 1 and 2, realized using a patterned sheet. [Figure 10]3A and 3B show different views and illustrations of an embodiment of a gas temperature adjusting ring of the compressor shown in FIGS. 1 and 2, realized using a patterned sheet. [Figure 11] 3A and 3B show different views and illustrations of an embodiment of a gas temperature adjusting ring of the compressor shown in FIGS. 1 and 2, realized using a patterned sheet. [Figure 12] 3A and 3B show different views and illustrations of an embodiment of a gas temperature adjusting ring of the compressor shown in FIGS. 1 and 2, realized using a patterned sheet. [Figure 13] 3A and 3B show different views and illustrations of an embodiment of a gas temperature adjusting ring of the compressor shown in FIGS. 1 and 2, realized using a patterned sheet. [Figure 14] 3A and 3B show different views and illustrations of an embodiment of a gas temperature adjusting ring of the compressor shown in FIGS. 1 and 2, realized using a patterned sheet. [Figure 15] 3A and 3B show different views and illustrations of an embodiment of a gas temperature adjusting ring of the compressor shown in FIGS. 1 and 2, realized using a patterned sheet. [Figure 16] 3A and 3B show different views and illustrations of an embodiment of a gas temperature adjusting ring of the compressor shown in FIGS. 1 and 2, realized using a patterned sheet. [Figure 17] 3A and 3B show different views and illustrations of an embodiment of a gas temperature adjusting ring of the compressor shown in FIGS. 1 and 2, realized using a patterned sheet. [Figure 18] 3A and 3B show different views and illustrations of an embodiment of a gas temperature adjusting ring of the compressor shown in FIGS. 1 and 2, realized using a patterned sheet. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] 1 shows a schematic diagram in longitudinal section of a gas supply device 1 embodied as an air supply device. The air supply device 1 is embodied as a compressor with two rotating wheels 3,4.

[0020] The rotating wheels 3, 4 are embodied as compressor wheels and are rotatably arranged in respective spiral casings 5, 6. The rotating wheels 3, 4 are rotatably driven by an electric drive 2. The electric drive 2 comprises a stator, in which a rotor with an axis 7 is rotatably driven.

[0021] The shaft 7 is rotatably supported in a housing 15 by means of two radial bearings 8, 9 and one thrust bearing 10. The housing 15 comprises a housing body 16, which is substantially pot-shaped. The pot-shaped housing body 16 is closed by a housing cover 17. The housing 15 with the housing body 16 and the housing cover 17 is arranged in the axial direction between the two spiral casings 5, 6, which are likewise part of the housing 15.

[0022] The term axial refers to the axis of rotation 13 along which the shaft 7 with both rotating wheels 3, 4 is rotatably supported in the housing 15. Axial means in the direction of or parallel to the axis of rotation 13. Correspondingly, radial means transversely to the axis of rotation 13.

[0023] The electric drive 2, in particular its stator, is surrounded in a housing 15 by a temperature regulation mechanism 11 embodied as a cooling mechanism. The cooling mechanism 11 is arranged in an annular space defined radially inwardly by the electric drive 2, in particular by the stator of the electric drive 2.

[0024] The annular space in which the cooling mechanism 11 is disposed is defined radially outwardly by the housing body 16. The annular space in which the cooling mechanism 11 is disposed is defined axially by the housing body 16 and the housing cover 17.

[0025] The cooling mechanism 11 comprises a medium temperature adjustment part 12, which is implemented as a refrigerant cooling part, and a gas temperature adjustment part 20, which is implemented as an air cooling part. The refrigerant cooling part 12 preferably operates with a fluid temperature adjustment medium, in particular a refrigerant, for example a water-glycol mixture. During operation of the refrigerant cooling part 12, the refrigerant to be temperature adjusted, preferably cooled, flows through a first temperature adjustment guide geometry 18, which opens radially outwardly.

[0026] The first temperature-regulating guide geometry 18, which opens radially outward, comprises a number of temperature-regulating medium lines 19, in particular refrigerant lines, which are formed in the temperature-regulating sleeve 14, also called motor cooling sleeve. The temperature-regulating guide geometry 18, which opens radially outward, of the refrigerant cooling part 12 is delimited to a large extent by the housing body 16 and to a small extent by the air cooling part 20.

[0027] The air cooling section 20 comprises a second temperature-regulating guide geometry 21, which also opens radially outwardly, with a number of gas lines 22, in particular air lines, which are defined by a gas-guiding structure. The radially outwardly opening temperature-regulating guide geometry 21 of the air cooling section 20 is defined radially outwardly by the housing body 16.

[0028] 2 it can be seen that the temperature-regulating and induction geometry 18 of the refrigerant cooling section 12 is defined radially inwardly by a sleeve-like basic body 23 of the motor cooling sleeve 14. Correspondingly, the temperature-regulating and induction geometry 21 of the air cooling section 20 is defined radially inwardly by a sleeve-like basic body 29 of the gas temperature-regulating ring 24. The sleeve-like basic bodies 23, 29 each preferably have the form of a substantially right cylindrical jacket.

[0029] The basic body 23 of the motor cooling sleeve 14 can have several axial sections, in which the basic body 23 has different inner diameters, for example to realize steps that can be used to position the motor cooling sleeve 14 relative to the electric drive 2. In these axial sections, the outer diameter of the basic body 23 of the motor cooling sleeve 14 is preferably also designed to be different.

[0030] The illustrated sealing mechanism 28 is embodied as an O-ring and serves to provide a seal between the motor cooling sleeve 14 and the housing body 16. Correspondingly, the sealing mechanism 25, also preferably embodied as an O-ring, serves to provide a seal between the gas temperature regulating ring 24 and the housing body 16.

[0031] The cooling mechanism 11 embodies a heat exchanger assembled from three parts: an inner part, a central part and an outer part. The inner part is the motor cooling sleeve 14. The central part is the gas temperature regulating ring 24. The outer part is the housing 15 with the housing body 16.

[0032] Between the inner part 14 and the central part 24 there is formed a temperature-regulating medium line 33, in particular a refrigerant line 33, through which a temperature-regulating medium to be temperature-regulated, in particular a refrigerant, for example a water-glycol mixture, flows. Between the central part and the outer part 16 there is at least one gas-conducting structure, for example an air line for a gas to be temperature-regulated, in particular to be cooled, for example air.

[0033] In Fig. 2 it can be seen that the gas temperature regulating ring 24, which may also be called an air cooling ring, comprises a number of gas guiding structures, also called air guiding structures, which are realised by means of a pattern sheet 50 on the gas temperature regulating ring 24 to realise the second temperature regulating guiding geometry 21, as will be explained below with reference to Figs.

[0034] Radially outwardly, between the second temperature-regulating guide geometry 21 and the housing body 16, a pressure-balancing gap 31 may be arranged, as only indicated by the reference number in Fig. 2, which allows a pressure balance between the individual gas lines defined by the gas-guiding structure. This allows a uniform through-flow of the air or gas lines to be achieved. For sealing between the temperature-regulating sleeve 14, also called the inner part, and the gas temperature-regulating ring 24, also called the central part, a sealing mechanism 30 embodied as an O-ring is provided.

[0035] In Fig. 3, the sleeve-like basic body 29 of the gas temperature regulating ring 24 is shown only in a perspective view. The basic body 29 has the form of a right cylindrical jacket. At its axial end, the basic body 29 has a flange 40 which projects radially outward. The flange 40, as can be seen in Fig. 7, has a receiving groove 46 for receiving the sealing mechanism 25, which is indicated by 25 in Fig. 2.

[0036] The sleeve-like basic body 29 can be combined with a pattern sheet 50, which will be described below with reference to Figures 4 to 18. Figures 7 to 14 show parts of the pattern sheet 50 in various embodiments, each in a perspective view from above.

[0037] 4 to 6 show an embodiment of a pattern sheet 50 in different views. The pattern sheet 50 is made of a metal sheet material. The pattern sheet 50 has the form of an elongated rectangle with two flat end portions 51, 52. The pattern sheet 50 has a gas guide surface 49 between the end portions 51, 52.

[0038] The gas guide surface 49 comprises a number of raised areas 53. The raised areas 53 are formed by deep drawing in the pattern sheet 50. The raised areas 53 embody the gas guide elements 35 in the gas guide surface 49.

[0039] The gas guide surface 49 with the gas guide element 35 embodies the above-mentioned second temperature adjustment guide geometry 21, which is open radially outward, provided on the gas temperature adjustment ring shown at 24 in Figures 1 and 2. The raised area 53 has the form of a truncated cone emerging from the gas guide surface 49 and tapering towards a closed end.

[0040] In Fig. 15, the pattern sheet 50 is shown in the bent state. In the bent state, the pattern sheet 50 embodies a pattern sheet sleeve 60 with a connection surface 57. The bent pattern sheet 50 is connected form-lockingly and by welding at its two end parts 51, 52. For this purpose, the end part 51 is formed with a connecting plate 56 which is inserted through a correspondingly provided slit in the end part 52. Furthermore, the connecting plate 56 is connected to the end part 52 by welding.

[0041] Furthermore, the end portion 52 has a stepped collar 55 which embodies the separation strip 45 on the patterned seat sleeve 60. The separation strip 45 separates the inlet recess 41 from the outlet recess 42 radially outwardly at the gas guide surface 49.

[0042] The inlet recess 41 and the drainage recess 42 are bounded in the axial direction by the flange 40. Radially inwardly, the inlet recess 41 and the drainage recess 42 are bounded by the end portions 51 and 52. Radially outwardly, the inlet recess 41 and the drainage recess 42 are bounded by the housing body 16 with the gas temperature regulating ring 24 attached.

[0043] 16 it can be seen how the pattern sheet sleeve 60 is mounted on the sleeve-like basic body 29. For fastening, the pattern sheet sleeve 60 is preferably welded to the sleeve-like basic body 29 at its connection surface 57. The raised area 53 embodies the temperature adjustment guide geometry 21 which opens radially outwards at the gas temperature adjustment ring 24.

[0044] 17, arrows 43 and 44 indicate how the gas is fed axially at the inlet and how it is discharged axially at the outlet. Arrows 61, 62, 63 indicate how the fed gas is guided in the circumferential direction along the second temperature-regulating guide geometry 21.

[0045] In Fig. 17, the gas temperature regulating ring 24 has an almost complete 360° wrapping of the pattern sheet 50 between the inlet recesses 41 and the outlet recesses 42. It is also possible for the inlet recesses 41 and the outlet recesses 42 to be spaced further apart from one another on the circumference of the gas temperature regulating ring 24. The wrapping is then correspondingly smaller and may have, for example, a wrapping of 270°, 180° or 90°.

[0046] Another embodiment considers diametrically arranging the inlet recesses 41 and the outlet recesses 42, so that the flow in the intake area is divided and flows from there in two directions along the circumference of the patterned sheet sleeve 60 to the outlet. This has the advantage, among other things, that no separation strips or transverse strips are required.

[0047] 18 shows that the pattern sheet 50 may also have two open ends. For the seaming process, the pattern sheet is then folded around the sleeve-like basic body 29 and is then joined at its ends by fusing, for example by brazing or welding. The release or transverse strips may already be present in the pattern sheet 50. However, the release or transverse strips may also be embodied in separate parts which are seamed to the pattern sheet 50, for example by brazing or welding. [Explanation of symbols]

[0048] 1 Gas supply equipment 7-axis 11 Temperature adjustment mechanism 12 Medium temperature adjustment section 13 Rotation axis of shaft 14 Temperature Regulating Sleeve 15 Housing 16 Housing body 18 First Temperature Regulating Induction Geometry 20 Gas temperature control unit 21 Second Temperature Regulating Induction Geometry 24 Gas temperature adjustment ring 29 Sleeve-shaped base body 40 Tsuba 49 Gas guide surface 50 Pattern Sheets 53 Raised area 60 Pattern Sheet Sleeve

Claims

1. In a gas supply device (1) comprising a shaft (7) supported in a housing (15) for rotation about a rotation axis (13) and a temperature adjustment mechanism (11) including a medium temperature adjustment part (12) surrounding the shaft (7), the medium temperature adjustment part (12) being combined with a gas temperature adjustment part (20), the temperature adjustment mechanism (11) comprising a temperature adjustment sleeve (14) with a first temperature adjustment guide geometry (18) configured for flow guidance of a temperature adjustment medium and opening radially outward, and a second temperature adjustment guide geometry (18) for temperature adjustment of a gas, opening radially outward. and a gas temperature regulating ring (24) with a guiding geometry (21), characterized in that the gas temperature regulating ring (24) defines the first temperature regulating guiding geometry (18) radially inwardly and / or axially and is defined radially outwardly by a housing body (16), the gas temperature regulating ring (24) comprising a sleeve-shaped basic body (29) combined with a pattern sheet (50) used to realize the second temperature regulating guiding geometry (21) opening radially outwardly.

2. 2. Gas supply device according to claim 1, characterized in that the sleeve-like basic body (29) has the form of a right cylindrical jacket.

3. 3. Gas supply device according to claim 1 or 2, characterized in that the sleeve-shaped basic body (29) has a flange (40) at one end.

4. 4. The gas supply device according to claim 1, wherein the pattern sheet (50) is welded to the sleeve-shaped basic body (29).

5. 5. The gas supply device according to claim 1, wherein the pattern sheet (50) is frictionally connected to the sleeve-like basic body (29).

6. 6. The gas supply device according to claim 1, wherein the pattern sheet (50) has, on the side facing away from the sleeve-shaped basic body (29), a gas guide surface (49) with raised areas (53) used for realizing the second temperature control guide geometry (21) opening radially outward.

7. 7. A method for manufacturing a temperature regulating mechanism (11) for a gas supply device (1) according to claim 6, characterized in that a sheet material is deformed in order to form the gas guide surface (49) with the raised area (53) used for realizing the second temperature regulating guide geometry (21) opening radially outward.

8. 8. The method according to claim 7, characterized in that the sheet material to be deformed is bent and joined at two ends to produce a patterned sheet sleeve (60) and the patterned sheet sleeve (60) is joined to the sleeve-like base body (29) to materialize the gas temperature regulating ring (24) to be mounted on the temperature regulating sleeve (14).

9. 8. A method according to claim 7, characterized in that the sheet material to be deformed is bent around and joined to the sleeve-like basic body (29) to embody the gas temperature regulating ring (24).

10. A gas temperature regulating ring (24), in particular a sleeve-shaped basic body (29) and / or a pattern sheet (50) or a pattern sheet sleeve (60), for a gas supply device (1) according to any one of the claims 1 to 6.

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