TW584694B - Connecting device for casing parts of turbochargers - Google Patents

Abstract

Turbocharger components (10, 12) connectable to one another, the connecting regions (11, 11') of which coaxially overlap one another in the axial direction (14) and positively engage radially one into the other, are secured axially with the aid of an approximately annular securing device (22). The connecting regions (11, 11') have circumferential grooves (18, 20) located opposite one another, into which can be inserted as the securing device (22) at least two ring-segment-shaped securing elements (24) which, for axial fixing, engage simultaneously into the two circumferential grooves (18, 20), the securing elements (24) being assigned displacement means (30) for displacement in the radial direction, and the radial height of the first circumferential groove (18) in the first turbocharger component (10) being at least as large as the radial height of the securing elements (24).

Description

A7

FIELD OF THE INVENTION The present invention relates to components of a wheel booster (material g | is a shell part) that can be connected to a vehicle, and is a special one from θ 丄 丨 juice. The present invention relates to the components with the features of the patent application and the fixing device. The Xiao fixing device can supercharge these turbines according to the main name of the U.S. patent and the main name + + i, temple color. The parts of the device are fixed axially. ° Prior art Chip wheel boosters and especially their casings are made up of many individual components. For example, the three main components of the shell are press, cymbal, shell, thirsty turbine shell and bearing shell. The thirsty turbine casing and compressor usually also include a plurality of components, such as a gas outlet casing, a gas inlet casing, an insertion wall, a rear wall behind the turbine wheel, and a rear wall behind the compressor wheel. The connection of these individual components must meet the strictest standards, because the force acting on these connections is very A and many material connections must be airtight under load. Because many turbocharger components and especially the casing parts are centered around the turbocharger axis and extend in a concentric manner, it has been proven that if these components can be obtained in the following manner It is better to connect together: the parts are connected together by annular flanges that extend radially and outwardly, and the end faces of these parts abut against each other in a circular manner. In each example, the flanges are provided with receiving holes, which are evenly distributed over the circumference, and their sizes and shapes are exactly the same. In this way, the two components can be securely connected together with the help of a tethering device such as a bolt or screw. DE-C-36 42 Patent No. 121 shows the vortex. -4-This paper size applies to China National Standard (CNS) A4 (210X297 mm) 584694

The components of the wheel supercharger are connected to each other in this way; to be precise, the car is composed of two parts of the bearing shell, the bearing shell and the turbine shell, and the bearing shell and the compressor shell are all Connect in this way. This connection of the turbocharger components makes the manufacture of these components very simple, but it may increase the probability that the bolts will break under excessive radial force.

In order to reduce this probability, as shown in EP-A_ () 248 624, the connection areas of these components are provided with radial shoulders and corresponding grooves, which are arranged in such a way that: The shoulders of a component and the grooves of the second component are axially superposed and mesh positively and radially with each other. Thus, the shoulder and the groove form a positively and radially fixed connection.

This connection is sufficient to absorb such radial forces. The absence of the receiving holes of the shoulders and grooves will reduce its airtightness. Thus, the first member is provided with a ring-shaped bead, and the bead and the receiving holes are used as a tie, and the receiving holes are evenly distributed over the circumference. In order to ensure the radial connection axially, a ring-shaped fixing device is used axially for the ring-shaped bead. The fixing device protrudes the ring-shaped bead inwardly and abuts against the rear face of the shoulder. The fixing device is also provided with a receiving hole so that it can be fixed to the ring bead in such a way by screw inspection or screws ... The fixing device can firmly clamp the shoulder of the first component in the axial direction Within the groove of the second component. Although a clever connection configuration can protect the system from being broken, in addition to the bolts or screws, an additional fixing device must be provided to facilitate axial fixing. In addition, the manufacturing of the shoulders and grooves is very complicated because, in order to achieve the required airtightness', they must be made by the machine in a very precise manner. -5 297 mm) 584694 A7 B7 Five invention descriptions (in the above-mentioned two consecutive examples, when installing and disassembling, a plurality of screw inspections or screws must be tightened or loosened. The force is, during maintenance, Opening the casing is quite time-consuming, especially because the bolts or screws are stuck due to load or they are relatively difficult to loosen due to rust. The purpose of the present invention is to provide such turbocharging. Parts of the device: these parts can be connected to each other in a simple manner, have a reasonable cost, and can be easily installed and removed; a fixing device must also be provided, which can axially fix these parts, and the device is not easily affected The effect of stuck and rust. This object can be achieved by the components of the turbocharger according to the scope of the patent application and the fixing device according to the scope of the patent application. The components of the turbocharger according to the present invention It has such a connection area: These areas are coaxially superimposed on each other in the axial direction and feed in the radial direction, and pass through the substantially annular fixing device: placed and axially applied. The device includes at least two "ring-shaped segments" fixing elements. The connection area of these parts has grooves in the circumferential direction, these grooves are arranged in an opposite manner, and at least two "ring-shaped segments" Shape fixing elements can be inserted into the grooves. As far as the axial fixing is concerned, the fixing elements are simultaneously engaged with the grooves in the two circumferential directions, and the fixing elements are provided with a displacement device to facilitate radial movement. Displacement, the height in the radial direction of the groove in the first circumferential direction of the component of the first turbocharger is at least equal to the height in the radial direction of the fixtures. The components of the grooved turbocharger can be easily manufactured, and can be connected to each other in a simple manner, and can be -6-

They are fixed to each other in the axial direction by the fixing elements of the shape of the "ring-shaped segment". We can use the displacement device to make the fixing devices from their unfixed position (located in the first circumferential direction). Grooves) to the fixed position (between the grooves in the first and second circumferential directions), and vice versa. Therefore, it is possible to produce such a sleeve-up fixation: at any time 'this To be released and tightened again. Via the fixing device (the fixing device includes a plurality of fixing elements, # these fixing elements are so arranged: distributed on the circumference of the parts of the turbocharger), We can use this fixed system for parts of turbocharger with any size diameter. The parts of the turbocharger do not have to be cylindrical. The parts can have an oval shape or a transverse load that is symmetrical in the axial direction For parts with different diameters, through the modification of the thickness of the walls of the parts located in the connection area, the diameter of the overlap area can be changed so that they can be positively closed. Because Placed in these grooves, these fixing elements can be roughly: protected and difficult to record; and 1, it is in the form of fragments, even under high mechanical loads, they will not be stuck The radial height of the groove in the second circumferential direction of the second component of the turbocharger is smaller than the radial height of the fixing element. By mounting the displacement to start, we can easily install the fixing device. Radially move from the non-fixed position (the groove in the first circumferential direction) to the fixed position-until the fixed element is moved to the concave bottom of the groove in the second circumferential direction. As for the fixing element, one of the insertion of a displacement device may be allowed. "The upward upward hole is provided in the recess of the relevant circumferential direction, and + 584694. V. Description of the invention (5) The groove is provided with a hole and a hole. Therefore, we can construct the displacement device by means of a coin. If the small hole is sealed, the scale can be inhibited and the scale can be inhibited further. The nature of the connection can be confirmed Through the grooves provided in the circumferential direction of the sealing device, the connection can be achieved, the airtightness of the connection required, and a good anti-recording protection tank. A? It is necessary to provide a screw or -displacement tip for use It is displacement. It is easy to obtain the "tired wire system", which is cheap, and easy to operate. When the nut # 3 or a screw is not suitable to protrude the part of the turbocharger, the displacement tip is better. In the case of a larger length in the circumferential direction, it is better to provide an additional displacement device to ensure that the fixed position is located between the grooves in the circumferential direction and covers one of the fixed elements. Positioning. The additional displacement device provided may be a pressure screw. The screws are connected to the relevant fixing element through an additional radial hole. It has been confirmed that the The end region of the isolating element (located in the circumferential direction) is preferably designed as a "spring end". Thus, the fixing elements can be operated in a snap fastening manner, and the connection can be released through a displacement pin. If the grooves in the two circumferential directions are defined by the length of the fixing elements in the circumferential direction, the fixing element can provide fixing in the axial direction and the circumferential direction. In the case where the parts have been at least partially fixed to each other-such as being connected to another part or the parts have been connected to each other, the -8- this paper size applies to the Chinese National Standard (CNS) A4 Gauge (21〇X 297 male 584694

The ventral surfaces of the grooves in the isocircle direction may have a configuration such that there is a slight deviation between the ventral surfaces so that when the fixing elements are pushed to their fixed positions, the components are positioned relative to each other. The method is supported by the building (b coffee is above the 忒 axis. 纟 In this example, at least the ventral surface in the second circumferential direction (the bulging surface which will be lost by 泫 pinching force) has the following configuration: An obtuse angle is formed relative to the bottom of the groove so that the fixing elements can be more easily pushed into the second circumferential groove. The fixing elements preferably have an inclined surface corresponding thereto. The components of a turbocharger designed according to the present invention (especially its shell part) can be installed (to facilitate maintenance) and disassembled in a simple manner, which can reduce the waste of `` downtime '' turbine. The parts of the supercharger, their connection areas, and the solid components and displacement devices can be made simpler and cheaper to manufacture4; therefore, in general, the turbocharger also becomes a comparative Best turbocharger. The other preferred embodiments are the subject matter of the appended patent claims. Brief description of the drawings In the following, the present invention will be described in detail with several preferred embodiments shown in the accompanying drawings. These drawings are purely schematic. Figure 1 is a cross-sectional view of a part of a turbocharger according to the present invention along one of its longitudinal axes, the turbocharger having two components according to the Ik turbocharger. Section 2a, the connection area of the two parts of the turbocharger according to the invention, is a cross-sectional view taken along one of the lines II-III of Figure 1. Binding «584694 A7

Fig. 2b Fig. 3a is an enlargement of a part of Fig. 2a. An example of one of the components of a turbocharger according to the present invention and its associated fixed Ϋ, ㈣, 疋, 穿, and 之一 are placed in a cross-sectional view of one of the grooves on their circumference. Fig. 3b, Fig. 4 and Fig. 6 are sectional views taken along the axial direction of the embodiment shown in Fig. 3a. The two embodiments of the wheel "" are shown in a similar manner to the one shown in Fig. 3a, which is a cross-sectional view of one of the related fixing devices of the turbocharger. The braced system The two-wheeled supercharged material passes through the groove in the circumferential direction of the material and a cross-sectional view along one of the longitudinal axis directions of the turbocharger. The two components are positively superimposed on each other to be connected to each other and pass The meaning of the reference numerals used in the drawings in the axial direction with respect to each other according to a special design of one part of the turbocharger of the present invention is listed in the "List of Names Represented by Reference numerals" The same reference numerals represent the same elements. The several embodiments described herein should be considered as examples of the present invention and should not be considered as limiting. Several embodiments of the present invention Figure 1 is a full-wheel booster A section of one side of the compressor of the compressor 1 is along a section of the longitudinal axis 14 of the full-wheel supercharger 1, and the impeller 3 with the compressor, or the impeller train is fixed to the casing 5 of the compactor. A shaft 4. The impeller 3 of the compressor can pass By the shaft 4 and one of the turbine impellers of the turbocharger 1 (not -10- aa home standard (cns) A4 size (2 dream tear) in the paper size m) " ~ 584694 A7 _ — _B7 ___ five (Indicated by the invention description (8))). An insertion wall 6 radially defines the outside of an air inlet duct 7 which is connected to a gas outlet duct via the compressor impeller 3 and a booster duct 8 9 is connected. In the example here, the gas outlet channel 9 is defined by two members 10 ′ 12; to be precise, the outlet channel 9 is defined by an inner wall member 10 radially and inwardly by a gas The outlet shell 12 is defined radially and outwardly. The two parts 10, 12 constitute the shell 5 of the compressor. At their connection area 11, 11 ', the two parts 〇0, 12 are in the axial direction 14 They overlap each other and mesh positively and radially with each other. The two connecting areas 丨 丨 u are provided with grooves 丨 8,20 in the circumferential direction. The two grooves have the same width and opposite directions. The ground is arranged, and the open side of each groove is arranged facing to the ground. For the fixing in the axial direction, a plurality of rings are arranged in a ring shape. The fixed element 24 of the “shape of the segment” is arranged in the two grooves 1 $, 20 in the circumferential direction and distributed on the circumference in a uniformly divided manner, and its function is a fixed device 22. Fig. 2a is a cross-sectional view of a part of the circumference of the two parts 10, 12 of the turbocharger according to the present invention along a line II-II of Fig. 1, showing only the fixed elements 24 distributed on the circumference. One component. The fixing element 24 is shown in its fixed position, meaning that it protrudes beyond the edge region 26 of the first circumferential groove 18 of the first component 10 and projects into the second component 12 The first groove 20 in the circumferential direction. A small hole μ in the radial direction is arranged in the first member 10, a displacement tip 56 is provided in the small hole 28, and is used as a displacement device 30 to facilitate the radial displacement of the fixing element 24 . The displacement tip 56 is firmly connected to the fixing element 24 via a welding seam 25, which can be more clearly shown in Fig. 2b. In order to ensure the airtightness of the connection, the displacement tip 56 has a tip groove 16 which is in a circumferential direction of -11-This paper size applies the Chinese National Standard (CNS) A4 specification (21〇x 297) ) ~ '--- 584694

Description of the invention The slot can receive a sealing element 72, which is an O-shaped seal. The radial degree of the groove 18 in the first circumferential direction of the first component 10 is greater than or equal to the radial height h of the fixing element 24 so that the fixing element 24 can pass through the displacement device 30. It is moved to a non-fixed position with the assistance of this position; in this position, the entirety of the fixed position 24 can be placed in the groove 18 in the first circumferential direction (not shown). The radial height h2 of the groove 20 located in the second circumferential direction of the second member 12 is smaller than the radial height of the fixing element 24. When the fixing element 24 is to be moved from the non-fixed position to the fixed position in the radial direction 29, it is only necessary to move the fixing element 24 against the groove bottom 32 of the groove 20 in the second circumferential direction. . Conversely, when the fixed element 24 is to be moved from the fixed position to the non-fixed position in the radial direction, it is only necessary to move the fixed element 24 against the groove in the first circumferential direction of the first member 10 18 的 槽 bottom 34. In this embodiment, 'the end region of the fixing element 24 located in the circumferential direction 35 is designed as a π spring end' 54, and the two ends are supported by the groove bottom 34 of the groove 18 in the first circumferential direction ^ The two spring ends 54 have the function of “extra displacement device 46” and can press the middle area 53 of the fixing element 24 into the fixed position. Therefore, the entire assembly operates in a snap fastening manner. This snap connection can be released radially and inwardly by moving the displacement tip 56. In this embodiment, in order to achieve fixation in the circumferential direction 35, the first and second members 10, 12 The grooves 18, 20 in the circumferential direction 35 are roughly defined according to the length of the fixing element 24. Except for the inner wall parts of the compressor casing 5 and the gas outlet casing, the -12- paper size Applicable to China National Standard (CNS) Α4 specification (210X297 mm) '' ''

Binding

584694 A7 B7 V. Description of the invention (10) Other components 10, 12 of the turbocharger 1 can also be connected according to the present invention and DE-C-36 42 121 patent; for example, on the same side as the bearing housing A compressor shell and a bearing shell; different parts of the bearing shell; the bearing shell and the turbine shell. As far as the insertion wall and a part of the compressor casing or a rear wall of the thirsty turbine impeller or a part of the compressor impeller are concerned, if they are designed according to the present invention, they can be easily connected to each other (such as EP -A-0 248 624 patent); they can also be easily disassembled. The directional elements in FIGS. 3 to 6 show the connection areas of the components 10, 12 of the turbocharger according to the invention. These components 10, 12 may be the turbocharger, which need to be connected to each other, parallel to the Any component that extends 14 in the direction of the axis of the turbocharger "in each embodiment, the connecting areas of these components are parallel to each other and axially coincide with each other" three embodiments shown in Figures 3a, 4 and 5 The display is similar to the embodiment of Fig. 2a. In these three embodiments, the portion of the turbocharger provided with a groove in the circumferential direction having a larger height in the diameter is defined as the first component having the groove 18 in the first circumferential direction. FIG. 1 and In 5, this part is a part that is radially inward; in FIG. 6, this part is a part that is radially outward. A small hole 28 in the radial direction capable of receiving the displacement device 30 may be provided in the first and / or the second tritium supercharger component, and is preferably disposed near a midpoint of the fixed element 24 ( Relative to its length). Pyramid area-13-Figures 3a and 3b show a fixed element 24 in a manner similar to Figures 1 to 2b: recess with spring end 54 ', the two ends being supported by the groove 18 on the first circumferential side The bottom of the slot 34, and the paper size of the fixing element 24 can be adapted to Chinese National Standard (CNS) A4 specifications (210X 297 mm) — 584694 A7 ___B7 V. Description of the invention (η) The domain Dj is pressed to a far fixed position . In each example, the grooves 18'20 in the circumferential direction are manufactured in a continuous manner (different from the embodiment described above) and are not limited to the length of the fixing element 24. In this way, the grooves 18, 20 in the circumferential direction are relatively simple to manufacture and are suitable for the following situations: 5 and other parts 1 〇, 12 are fixed to the turbocharger 1 through them The other structural elements (not shown) have been fixed in the direction of the circle J 5. Although the definition of the grooves in the circumferential direction is not provided, the two components 10, 12 of the turbo pressure increase can still be fixed to each other, and cannot rotate in the circumferential direction relative to each other. In the embodiment shown in Figs. 3a and 3b, a displacement tip 56 is also provided as the displacement device 30; however, in this embodiment, the tip is radially inserted from the outside into the second component 12. A radial hole 28. Only when the connection is to be disconnected, the displacement tip 56 must be inserted; at other times, it is removed by the small hole 28. Via the displacement tip 56, we can press the middle region 53 of the fixed element 24 into the non-fixed position and into the groove 18 in the first circumferential direction, so that the two parts 10, 12 can be released from each other. One advantage of this embodiment is that in the fixed position, the displacement tip 56 is removed, so that no element protrudes beyond the two turbocharger components 10,12. Unlike the turbocharger components of Figs. 1 to 2b, in this embodiment, the two components overlap each other in the opposite direction in the axial direction, as shown in Fig. 3b. The embodiment shown in Figure 4 is basically similar to the figure. And hole examples. Similarly, 'the grooves 18, 20 of the two turbocharger components 10, 2 in the circumferential direction in the circumferential direction 35 are substantially defined by the length of the fixing element 24; in this embodiment' The dimples are manufactured in such a way that they are milled along the circumference -14- This paper size applies the Chinese National Standard (CMS) A4 (210 X 297 male sauce) ----- 584694 A7 ___ B7 V. Description of the invention (12) Cut out a groove segment with an appropriate length. The grooves 18,20 may have a limitation 37 in this way: for example, a stopper may be inserted at an appropriate point of the groove of a succession. The stop element may be a stud, a stop screw or the like. Similarly, a radial small hole 28 is provided at the middle point of the fixing element 24; a screw 36 (in this embodiment, a screw) can be provided in the first component 10 through the small hole. Used as a displacement device, this screw 36 has a thread 44 of an early π right-handed thread, which may be in line with the internal thread 44 of the fixing element 24 and the small hole 28. Tooth fit. Two pressure screws 48 (instead of, spring ends 54 ,,) are provided as additional displacement devices. The two screws are inserted into a radial hole 50 which has an internal thread corresponding to it. The two screws can apply pressure to the fixing element M. The two holes 50 in the radial direction are arranged in the circumferential direction 35 and located on the two sides of the small hole 28. In this embodiment, the entirety of the grooves 18, 20 in the circumferential direction is provided with a sealing device 72. For example, a rubber coating (coating) may be applied on the inner walls of the grooves. . The definition 37 of the grooves 8 and 20 in the circumferential direction 35 can not only fix the parts 10, π. There is also a further advantage in the circumferential direction 35. In case the screw% is unscrewed by the fixing element 24 (if it is lost), the fixing element 24 cannot be in the groove 18 in the circumferential direction , 35 moves in that circumferential direction within 20. At any time, we can tighten the screw 36 again to engage the fixing element 240. In addition to the above-mentioned screw 36, such a screw 36 can also be used as the displacement device 30. Its foot 38 has a left-handed thread 40 and its head 42 has a right-handed thread 44. The threads 40, 44 can be used with the fixing element 24 and the first -15- This paper size is applicable to China National Standard (CNS) A4 specifications (21〇 X 297 mm) 584694

The internal threads 40, 44, of the small holes 28 of the component 10 are engaged, as shown in FIG. In this way, the fixing element 24 can be moved from the fixed position to the non-fixed position and from the non-fixed position to the fixed position by only rotating the screw 36 a few times. In this embodiment, since the length of the fixing element is relatively large, it is not necessary to provide a spring end or a pressure screw as an additional displacement device. 46 〇

Fig. 6 shows a shaft 58 of the turbocharger. The shaft is a solid cylinder and forms the second turbocharger part 2 located inward in the radial direction. A first part 10 to be connected to the shaft forms a member 60 through its connection area n, and the tube can be pushed axially above the shaft%. In this connection region, the first component 10 has two grooves 18, 18 'in the first circumferential direction, the two grooves have a larger height center in the radial direction, and the shaft ^ is the second Turbocharger part 12 with two indentations in the second circumferential direction

The grooves 20, 20, and the two grooves 20, 20 are opposite to the grooves 18, 18 in the two first circumferential directions, and have a smaller height center in the radial direction and the same width. The two grooves 18, 20 located in the circumferential direction of the end region 62 of the shaft 58 are arranged precisely opposite each other and can receive these fixing elements 24 via screws 36 to facilitate axial fixing. The grooves 18, 20 located in the two circumferential directions of the end region 64 of the tubular connecting region are arranged in a manner of being slightly offset from each other. The groove 20 located in the circumferential direction of the shaft 58 and the ventral surface 66 (facing one of the ends of the shaft 62) have a design such that, relative to the second groove 20, the groove bottom 32 is An obtuse angle α. The abdominal surface 68 of the fixing elements may be matched with the circumferential surface of the circumferential groove 20, and have a corresponding inclined surface 70. In order to provide the fixing elements 24, the radial position is -16-I paper size Applicable to China National Standard (CNS) A4 specification (21〇X 297 public goods) ------- 584694 A7

584694 A7 B7 V Description of the invention (15) Made of high strength steel with high yield point. Tempered steel or materials with appropriate properties can also be used. List of names represented by the labels h 丨: height in the radial direction of the first groove h2: height in the radial direction of the second groove hs: height in the radial direction of the fixing element α: angle between the ventral surface and the bottom of the groove 10: first part 12: second part 14: axial direction 16: tip groove 18, 18 ': grooves 20, 20' in the first circumferential direction · grooves in the second circumferential direction 22: fixing device 24, 24 ': fixing element 25: welding seam 26: edge of the first groove 28: radial hole 29: radial 30: displacement device 32: bottom of the second groove 34: first recess Groove bottom 35: Circumferential direction -18-This paper size applies Chinese National Standard (CNS) A4 specification (210X 297 mm) 584694 A7 B7 V. Description of the invention (16) 36 36 ^ Screw 37: In the circumferential direction Restriction of groove 38: Foot area of screw 40: Thread of left-hand thread 40: Internal thread of left-hand thread 42: Head area of screw 44: Thread of right-hand thread 44: Internal thread of right-hand thread 46 : Additional displacement device 48: Pressure screw 50: Radial hole 52: Nut 53: Middle Field 54: Spring end 56: Displacement tip 58: Shaft 60: Pipe 62: Shaft end area 62, Shaft end 64: Pipe end area 66 • Abdominal surface of the second groove 68: Abdominal surface 70 of the fixing element: Abdominal surface 72: Sealing device-19-This paper size applies to China National Standard (CNS) A4 (210 x 297 mm)

Claims (1)

584694 A8 B8 C8 6. Scope of patent application 4. As stated in Scope 1 of the patent, two of the four turbochargers (10, 12) that can be connected to each other are characterized by a displacement tip (56) and / or a screw (36 "36" is provided as the displacement device (30) of the fixed element (24, 24,). 5. · The two parts of the turbocharger (10, 12) that can be connected to each other as in the scope of the patent application It is characterized in that an additional displacement device (46) is provided, preferably formed in the form of a spring end (54) on the fixing element (24, 24,). The two parts (10, 12) of the turbocharger are characterized in that the fixing elements (24, 24,) have a specific length and the grooves (18, 18f, 2) in the circumferential direction (35) 〇, 201) is limited in the circumferential direction by the lengths of the fixed elements (24, 24 ". And 7. • The two parts of the turbocharger that can be connected to each other (such as the first item in the scope of the patent application of the patent) (10 12), characterized in that when the two parts are connected together, the groove (18, 18) in the first circumferential direction ) At least one of the ventral surfaces has such a configuration ..-The ventral surface (66) has a #upward bias & with respect to the groove (20, 20) in the second circumferential direction, with & when the fixing When the element (24, 24 ') is located in its fixed position, the fixed element can support the second component (Η) in the axial direction (14) relative to the first component (10). The two components (10, 12) of the interconnectable turbocharger of item 7, characterized in that the ventral surface of the groove (20, 20,) in the second circumferential direction which receives the clamping force ( 66) Formed with respect to the groove -21-This paper size applies the Chinese National Standard (CNS) A4 specification (21〇 × 297) An obtuse angle α of the bottom portion (34), and the fixing elements (24, 24,) are related to it. The ventral surface (68) of Hai and the like preferably has a corresponding inclined surface (70). The two components (10, 12) of the turbocharger that can be connected to each other as described in the first patent claim, which are characterized in that the circumferential grooves (18, '20'20') have a sealing device. . 10. A turbocharger having two components (10, 12) of an interconnectable turbocharger as in any of claims 1 to 9 of the scope of patent application. A fixing device (22) can fix components (10, 12) of thirsty wheel supercharger, especially the shell part, in the axial direction, and the connection areas (u, u,) are coaxially arranged in The axial direction (14) overlaps with each other, and positively engages with each other in the radial direction, and is characterized in that the fixing device (22) has at least two fixing elements (24, 24 ·) in the shape of a ring-shaped segment The two fixing elements can be inserted into the circumferential and upward grooves (18, 18 ·, 20, 2〇 ·) located in the connection area (11 '1Γ) of the turbocharger component (1 (), 12). ), As far as the fixation in the axial direction is concerned, the fixing elements can be simultaneously engaged with the grooves (18 '18''20'20') in the two circumferential directions, and the ones located in the circumferential direction (35) The end area of the fixing element (24, 24,) is designed as the spring end (54). -22-This paper size applies the Chinese National Standard (CNS) A4 specification (210 > 297 mm)