JP5200265B2 - Guide wheel for hydrodynamic torque converter, method for manufacturing such a guide wheel and hydrodynamic torque converter with such a guide wheel - Google Patents

Description

  The present invention relates to a guide wheel for a hydrodynamic torque converter, a method for manufacturing such a guide wheel, and a hydrodynamic torque converter equipped with such a guide wheel.

  The design of hydrodynamic components for torque converters is often limited by a given narrow structural space. The required space in the axial direction of the guide wheel blade row is usually large, and components such as “pump” and “turbine” need to be matched with this large required space.

  Manufacture of guide wheels for torque converters is usually performed in aluminum die casting technology according to the prior art. Plastic guide wheels are also used in the prior art. Often the NACA-Profile is used for blade design, however other shapes are also used. At the time of manufacturing in die casting (method), a guide wheel that is released in the axial direction is distinguished from a guide wheel that is released in the radial direction. Guide wheels that are released in the axial direction are advantageous in their manufacture, but instead are limited in blade shaping (eg, blades usually cannot overlap). On the other hand, a guide wheel that is released in the radial direction usually has many possibilities in terms of blade design, but its manufacture is cumbersome and expensive.

  A known hydrodynamic torque converter according to US Pat. No. 3,572,034 is formed using two sheet metal forming members that are separately manufactured adjacent to each other in the axial direction and are joined together, Each has a radially inner inner ring and a radially outer outer ring, the outer rings formed thereby are joined together, and the inner rings formed thereby are joined together . A blade is formed between the inner ring and the outer ring. The blades are formed by bending the blade sections from a sheet metal forming member, where the blades are each grouped from two separate members. That is, in this case, one of the two sheet metal forming members forms a blade inflow edge and a section connected to the blade inflow edge for each blade, and the other of the two sheet metal forming members Forming a blade outflow edge and an area connected to the blade outflow edge, so that a blade manufactured from two parts is formed using the areas prepared by the two sheet metal forming members, respectively. Become.

  An object of the present invention is to improve a guide wheel for a hydrodynamic torque converter, which requires only a small axial structure space for the blade, and can be manufactured inexpensively and easily in terms of manufacturing technology. Is to provide a wheel.

  A guide wheel according to the present invention is described in claim 1, claim 2, claim 10, or claim 11. A torque converter according to the invention is described in claim 12. The method according to the invention is described in claim 13. Further advantageous configurations of the invention are described in the other dependent claims.

  In order to solve the above-mentioned problems, in the configuration of the present invention, a guide wheel for a hydrodynamic torque converter, in which the guide wheel has a plurality of blades, the guide wheels are separated from each other. Manufactured and having a plurality of members each having one or more of the blades of the guide wheel, these members being rigidly connected to each other, the members being as follows: The blades of these different members are respectively arranged in a circumferential direction extending about the central axis of the guide wheel and are shifted from each other while forming an intermediate chamber provided in the circumferential direction. It is formed from an integral member between each inflow edge and outflow edge. Each over de are integrally formed from one of said plurality of members.

  That is, in the guide wheel according to the present invention, unlike the configuration disclosed in US Pat. No. 3,572,034, each blade is formed from an integral member, and each blade is formed from two members, as in the configuration in US Pat. However, one of the two members does not provide a section with an inflow edge and the other member does not prepare a section with an outflow edge. However, in an advantageous configuration of the invention, a wide variety of members can be assigned to or formed by different members. A configuration in which the blades adjacent in the circumferential direction are formed by separate members is particularly advantageous.

  In another blade wheel or guide wheel for a hydrodynamic torque converter according to the invention, the blade wheel or guide wheel blade and / or the member having one or more blades are made of sheet metal.

  In yet another guide wheel for a hydrodynamic torque converter, the guide wheel has a plurality of members that are manufactured separately from each other and each have one or more of the blades of the guide wheel, These members are rigidly connected to each other, each having an inner ring and an outer ring, arranged axially between two adjacent outer rings and corresponding to the two outer rings. The axial spacing of the inner rings is different from one another in order to form an enlarged portion that increases the axial stiffness, in particular.

  It is advantageous if each blade is made of a solid material rather than in particular as a hollow blade.

  Furthermore, in the present invention, each blade can have a substantially constant thickness. The blade preferably has a rectangular shape when viewed in a plane perpendicular to the thickness direction.

  In the present invention, the guide wheel is also provided with a blade wheel molded from sheet metal, in particular for use in a torque converter.

  In yet another blade wheel or guide wheel for a hydrodynamic torque converter according to the present invention, the blade wheel or guide wheel includes an inner ring device located radially inward and an outer ring device located radially outward. A plurality of blades provided between the inner ring device and the outer ring device in the radial direction, the minimum axial blade length being 9.5 mm or less and / or outside the blade row The ratio of the minimum axial blade length to the diameter is 0.056 or less, preferably 0.02 or less and / or the converter width, in particular the converter width of a torque converter in which a blade wheel or guide wheel is incorporated. The ratio of the minimum axial blade length is less than 0.18, preferably 0.15 In particular, it is preferably 0.12 or less, more preferably 0.1 or less, and the number of blades is 40 or more, preferably 46 or more, particularly preferably 50 or more, more preferably 56 or more, Preferably it is 60 or more.

  Moreover, in the torque converter for motor vehicles by this invention, a torque converter has a pump wheel, a turbine wheel, and a guide wheel, In this case, the guide wheel is formed corresponding to the guide wheel by this invention.

Furthermore, in the method according to the invention for producing a guide wheel for a hydrodynamic torque converter, the method comprises the following steps:
Prepare at least one sheet metal or sheet metal piece,
Process a metal sheet or sheet metal piece by cutting,
A flat sheet of metal or a flat sheet of metal sheet is processed by deformation to form a member of a guide wheel having at least one, preferably a plurality of blades,
In this deformation process, one or more blades of the guide wheel to be manufactured are moved or bent, and moved with respect to the plane of the metal thin plate or the plane of the metal thin plate piece,
Has the steps.

  Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 schematically shows the steps of the method according to the invention,
FIG. 2 is a perspective view showing a first embodiment of a blade wheel or guide wheel according to the present invention with two blade metal sheets engaging each other,
FIG. 3 is a view showing a comparison between a blade shape of a blade wheel formed from a thin metal plate and a general-purpose blade shape of a guide wheel according to the present invention,
FIG. 4 is a cross-sectional view showing a torque converter device according to the present invention provided with a guide wheel according to the present invention,
FIG. 5 is a table showing values in the configuration in the illustrated embodiment and values in another configuration given as an example,
FIG. 6 is a view showing another embodiment of the guide wheel according to the present invention which is a constituent member of the torque converter device according to the present invention.

  As already mentioned, FIG. 1 schematically shows the steps of the method according to the invention.

  In step 10, at least one sheet metal or at least one sheet metal strip is provided.

  In step 12, the metal sheet or sheet metal piece is processed by detachment, such as cutting or laser cutting or sawing or similar processing. The metal sheet or sheet metal piece is thereby formed, for example, into a round metal sheet or sheet metal piece. Further, in step 12, a section is formed that forms a blade in the completed guide wheel. For this purpose, in particular the surrounding contour or the section of the surrounding contour is generated by cutting off. For example, the manufactured guide wheel has an inner ring and / or an outer ring, and in the process of separation according to step 12, a section that forms the outer ring and / or a section that later forms the inner ring and / or Later, the sections that form the blades are created. Detachment in this case is as follows: the blade or section that forms the blade after detachment remains joined integrally with the section that later forms the inner ring and / or the section that later forms the outer ring As can be done.

  In this context, in one embodiment, only the areas that will later form the blade may be contoured during the separation process. According to another alternative configuration, in the process of detachment, the area where the blade of the guide wheel will be formed later and the area where the outer ring will be formed later may be contoured. According to yet another alternative configuration, in the process of detachment, a region that later forms the inner ring of the guide wheel and a region that later forms the blade of the guide wheel are contoured. May be.

  That is, the member of the guide wheel formed from the metal thin plate or the metal thin plate piece may be a member having or forming one or a plurality of blades and the inner ring (having or not forming the outer ring). However, the member formed from the metal thin plate or the metal thin plate piece may be a member having or forming the inner ring of the guide wheel and a plurality of blades (having or not forming the outer ring of the guide wheel). .

  Further, the metal sheet or the member formed from the metal sheet piece or the metal sheet piece has an inner ring and an outer ring and one or more blades extending radially between the inner ring and the outer ring, or It may be a member to be formed.

  In step 14, a sheet metal sheet or sheet metal sheet extending in a plane is processed by deformation to form a member of a guide wheel having at least one blade. This deformation can be effected in particular by bending and / or deep drawing.

  In the course of this deformation, the blade or blades of the manufactured guide wheel are moved or bent so that the blade is moved relative to the plane of the sheet metal or sheet metal piece. Advantageously, in this case, the sheet metal extends in a plane substantially perpendicular to the axis of rotation of the finished member or the finished guide wheel, at least prior to deformation.

  In a particularly advantageous configuration of the method according to the invention, the members of the guide wheel that are formed are produced as described above. The exact contours of these (different) members can in this case have some differences. In particular, the members produced at this time can be formed such that they can be joined together in the axial direction, in particular with respect to the axial direction of the rotation axis of the guide wheel that is produced. These members may differ in particular with respect to the number of blades produced.

  According to this configuration, the plurality of members of the guide wheel to be manufactured are each manufactured from a single sheet metal, in which case each of these members has a guide wheel blade to be produced. The blades in this case in particular are such that they form complete blades, which are complete throughout the blades, ie from the blade inflow edge to the blade outflow edge.

  For example, each individual member of a guide wheel manufactured in accordance with the method described in connection with FIG. 1 has an inner ring and an outer ring and is radially between the inner ring and the outer ring. Blades that extend, and are integrally joined to the corresponding inner ring and the corresponding outer ring, respectively, that is, each originated from a single sheet metal or piece of sheet metal as a whole. It has been tightened.

  The various members of the resulting guide wheel are then joined together, i.e. joined together in the axial direction as viewed in the axial direction of the axis of rotation of the produced guide wheel. Prior to this joining, the members are brought into position with respect to each other, i.e. the blades of the different members having one or more blades of the manufactured guide wheel are at the longitudinal center axis of the manufactured guide wheel. As viewed in the circumferential direction, it is brought into a position that is spaced from all blades that are components of any member of the other member having one or more blades.

  Between each arbitrary blade of one of these members and each arbitrary blade of the other member, in the circumferential direction as viewed in the circumferential direction of the longitudinal central axis of the guide wheel generated , Respectively, are spaced while forming an intermediate chamber.

  In a particularly advantageous configuration, the members, each having one or more blades, are positioned relative to each other before joining, i.e. circumferentially seen around the longitudinal central axis of the guide wheel that is produced after joining. Are positioned so that an equal spacing is provided between each adjacent blade in the direction, which in particular relates to an equal radial position, respectively, as viewed in the radial direction of the longitudinal central axis. ing.

  In this case, in a particularly advantageous configuration, there is at least a predetermined radial position, as seen in the radial direction of the longitudinal central axis of the guide wheel that is produced, with respect to this radial position. The perimeter is smaller than the sum of the dimensions between the inflow and outflow edges of the respective blades, which are given at a perimeter position corresponding to this radial dimension. This means that for the position corresponding to the radial dimension of the guide wheel, as viewed in the radial direction of the longitudinal central axis, the following is true: the value 2 * π * (the radius of this radial position ) ≦ (total sum of distance dimensions determined as follows): At the radial position, for each blade, a distance dimension between the inflow edge and the outflow edge of the corresponding blade is determined, and this distance dimension Is given at said radial position. The sum is in this case formed for all the blades of the guide wheel so that the given spacing dimension at the relevant radial position is included in this sum. Such a formed sum is thus greater than the circumference given at the corresponding radial position and calculated by the formula: perimeter = 2 * π * (radius of the relevant radial position).

In the following, further advantageous configurations of the method described in particular with reference to FIG. 1 will be detailed:
Manufacture of the guide wheel / blade wheel or the guide wheel can be performed from one or a plurality of unloaded metal sheets or metal sheet pieces. These thin metal sheets or thin metal sheet pieces can be produced, for example, in the process of detachment or can be formed as round metal sheets. The blade is bent out of the plane of the correspondingly pre-processed sheet metal or sheet metal piece, for example using a forming tool. Easily manufacture blade wheels or guide wheels with extremely closely located and / or overlapping blades by the use of two or more sheet metal plates with blades that are later offset and engage each other (Clearance with small or negative viewing angle). In this way, a very thin guide wheel having a large number of blades can be realized. When bending, the blades each time obtain the blade angle distribution (Schaufelwinkelverteilung) required for the desired hydrodynamic properties, and this blade angle distribution determines the flow direction. The blade wheel obtained after the bending or deformation process can be used without further shaping to reduce manufacturing costs, or further shaping steps (embossing of the blade inflow or outflow edge ( Anpraegen), edge forging (Stauchen)) can be optimized for hydrodynamic properties.

  The construction of the guide wheel or blade wheel can be carried out with a blade that ends freely radially outward or with a blade that ends in a flat outer region of sheet metal. In order to reduce the leakage volume flow that flows through the gap between the turbine or turbine wheel and guide wheel or between the guide wheel and pump or pump wheel, the flat outer region of the sheet metal is desired in a separate work step. It can be bent toward the side of. The blade wheel can be connected to the guide wheel boss by, for example, screw connection, rivet connection, welding or other joining techniques.

  FIG. 2 is a partial perspective view of a blade wheel or guide wheel 2 according to the invention. This blade wheel or guide wheel 2 has two, in particular exactly two members 20, 21, which are here blade metal sheets or guide wheel metal sheets 20, 22. In this case, both the members 20, 22 or the blade metal thin plates 20, 22 or the guide wheel metal thin plates 20, 22 are engaged with each other. Both members 20,22 or blade metal sheets 20,22 or guide wheel metal sheets 20,22 (hereinafter simply referred to as blade metal sheets 20,22) are respectively inner ring 24; 26, outer ring 28; 30. And a plurality of blades 32;

  In the configuration of the embodiment shown in FIG. 2, the blade wheel or guide wheel 2 has two or exactly two members with one inner ring 24, 26, outer ring 28, 30 and blade 32, 34, respectively. 20 and 22, but in order to form the blade wheel or guide wheel 2, more than two members may be provided, for example, three members, four members, five members Alternatively, more members may be provided, and this is especially true in the following description.

  The inner rings 24; 26 of the members 20; 22 are formed as follows. That is, in this case, the inner rings 24; 26 can substantially touch or overlap each other, particularly when viewed in the axial direction of the blade wheel or guide wheel 2.

  The members 20, 22 are in contact with each other, particularly in the axial direction, and in particular, the inner rings 24, 26 and the outer rings 28, 30 are each substantially congruent when viewed in the axial direction of the blade wheel or guide wheel 2. It is located overlapping. Both members 20, 22, however, are arranged to be pivoted relative to each other in the central longitudinal axis or the circumferential direction of the rings 24, 26, 28, 30 and are formed by the first member 20. Are positioned at intervals with respect to the blade 34 formed by the second member 22 in the circumferential direction.

  In the embodiment shown in FIG. 2, the number of blades 32 formed by the first member 20 is equal to the number of blades 34 formed by or on the second member 22. In this case, one blade 34 of the second member 22 is provided in the intermediate chamber in the circumferential direction between the two blades 32 adjacent to each other in the circumferential direction of the first member 20. Thus, the blades of the first member 20 and the blades of the second member 22 are alternately positioned in the circumferential direction. Alternatively or alternatively, however, the number of blades 32 formed by the first member 20 may be greater than the number of blades 34 formed by or on the second member 22, or A configuration in which the number of blades 32 formed by one member 20 is smaller than the number of blades 34 formed by or on the second member 22 is also possible.

  The first member is firmly connected to the second member, for example, by welding or brazing or screw connection or the like.

  As shown in FIG. 2, each of the blades 32 and 34 has a main extending direction or a surface extending in the main extending direction so that the blades 32 and 34 are not located on a plane formed by the rings 24, 26, 28, and 30. Have been placed. The blades 32, 34 are particularly twisted against the plane formed by the rings 24, 26, 28, 30.

  The configuration shown in FIG. 2 can be advantageously manufactured according to the direction shown in FIG. 1 and can be formed corresponding to the configuration described for FIG.

  In the configuration shown in FIG. 2, the blade 32 is integrally coupled with the inner ring 24 and the outer ring 28, that is, is manufactured from a unitary member, and the blade 34 is connected to the inner ring 26 and the outer ring 39. They are joined together, i.e. manufactured from one piece.

  The applicant has already produced a prototype of the configuration of the invention shown in the examples. In this case, the blade wheel or guide rail 2 was produced from aluminum by milling. However, in practical use, it is advantageous to form from a sheet metal. Characteristic line measurements show similar characteristics in the prototype as a general purpose guide wheel with eg 27 blades with the same blade angle arrangement, however the meridian length is reduced by about 50%, And the number of blades doubled to 54.

  Particularly in the case of a structure formed from a thin metal plate, two thin metal plate portions each having 27 blades are provided. Both sheet metal sections may be flat, for example, at the outer radius and the inner radius. Although the axial displacement of the blade due to the “lamination” of the two sheet metal parts is advantageously adjusted, it has been experimentally found that such a deviation causes only a slight difference in the characteristic line. Can be omitted.

  In other words, a blade wheel formed from a thin metal plate, especially for the guide wheel of a torque converter, is obtained for saving structural space and costs. Manufacture takes place from a correspondingly pre-processed sheet metal plate (Blechplatine), for example using a bending tool. By using two or more sheet metal pieces that are offset and assembled after deformation, it is also possible to easily realize a guide wheel with blades that are very closely located or overlapped. It is. In this way also very thin or thin guide wheels with a large number of blades can be realized.

  Like the configuration shown in FIG. 2, this makes it possible to realize a very thin guide wheel with a large number of blades, at least according to the configuration of the invention. At least according to the configuration of the present invention, the structural space can be reduced by a thin blade wheel or guide wheel with a large number of blades, and the production cost can be reduced by using a blade wheel or guide wheel formed from sheet metal. Can do.

  FIG. 3 shows a general-purpose blade shape 40 in comparison with the blade shape 42 of a blade wheel or guide wheel formed from a thin metal plate. This blade shape 42 formed from sheet metal is in particular the blade shape that can be obtained, for example, in the arrangement according to the invention shown in FIG. 2 or FIG.

  As can be seen from FIG. 3, the spacing between the inflow edge 44 and the outflow edge 46 in a general blade shape is greater than the distance between the inflow edge 48 and the outflow edge 50 of the blade shape 42 according to the present invention. In this case, the distance between each inflow edge and each outflow edge is particularly preferably an interval measured along each skeleton line. Further, as can be seen from FIG. 3, the general-purpose blade shape 40 has a rounded chamfered configuration, whereas the blade shape according to the present invention can have a substantially constant blade thickness.

  The torque converter device 1 shown in FIG. 4 comprises a guide wheel 2 such as the guide wheel 2 according to the invention shown in FIG.

  The torque converter device 1 has a torque converter 60 including a pump wheel 62, a turbine wheel 64, and a guide wheel 2 configured as in the present invention. Further, the torque converter device 1 has a converter housing 66 and a converter lockup clutch 68. The torque converter device 1 further includes a torsional vibration damper 70. Converter housing 66 may be coupled to a motor shaft or a shaft that is drivingly coupled to the motor shaft. Torque can be transmitted from the converter housing 66 to the driven shaft 72 via the torque converter. This is especially true when the converter lockup clutch 68 is open. By closing the converter lockup clutch 68, torque can be transmitted from the converter housing 66 to the driven shaft by bypassing the torque converter 60 via the converter lockup clutch 68.

In the configuration shown in FIG. 4, the minimum axial blade length b is greater than or equal to 9.5 mm and / or the minimum axial blade length b relative to the outer diameter d of the blade row (Beschaufelung). And / or the ratio of the minimum axial blade length b to the converter width B is less than or equal to 0.18. In the configuration shown in FIG. 4 the blade number N _S of the guide wheel 2 is not less than 40, and / or the blade relative to the number of the outer diameter of the blade rows (N S _{/ d)} is at least 0.2, It is advantageous. By such a value or by increasing the number of braces (which may be increased to a value different from the above value range), in particular it is resistant to degradation of the hydrodynamic properties due to the reduced axial blade length. can do.

  Such a guide wheel can be produced, for example, by die casting, but also by punching or bending a blade wheel from a sheet metal. By matching the components, i.e. the pump or pump hole and the turbine or turbine wheel, in particular with a thin guide wheel, the structural space required for the hydrodynamic circuit can be significantly reduced.

  In the configuration shown in FIG. 4, it is particularly advantageous if a guide wheel or blade wheel 2 having the configuration as shown in FIG. 2 is used. Further, in the configuration shown in FIG. 4, the blade may have a blade shape corresponding to the blade shape 42 shown in FIG.

  It is also advantageous if the guide wheel or blade wheel is produced in the arrangement according to FIG. 4 by the method according to the invention, in particular by the method according to the invention described with reference to FIG.

  FIG. 5 shows a table showing values for the characteristic values that can be used, for example, in the configuration shown in FIG.

  FIG. 6 shows another embodiment of the blade wheel or guide wheel 2 according to the present invention which is a component of the torque converter device 1 according to the present invention.

  As can be seen from FIG. 6, the first member 20 and the second member 22 are provided, and both the members 20 and 22 may each be formed as, for example, a metal thin plate forming member. However, both members 20, 22 may also be manufactured, for example, by aluminum technology.

  The first member 20 is manufactured as an integral member and forms an inner ring 24 and an outer ring 28. The second member 22 is also manufactured from a single piece and forms an inner ring 26 and an outer ring 30.

  A large number of blades 32, 34 are formed between the inner rings 24, 26 and the outer rings 28, 30 in the radial direction. In this case, in particular, the blades 32 are each assigned to the first member 20 and the blades 34 are respectively assigned to the second member 22, or the first member 20 is integrated with the (all) blades 32. The second member 22 is formed integrally with the (all) blades 34.

  Each blade 32; 34 is formed from a unitary member between each inflow edge and each outflow edge, so that each blade 32; 34 is respectively united by one member 20 or 22 of both members. Is formed. Also in the embodiment shown in FIGS. 2 and 4, each blade is formed from an integral member between each inflow edge and each outflow edge, so that each blade is one of both members. One member 20 or 22 is integrally formed.

  In the configuration shown in FIG. 6, the axial spacing between the inner rings 24, 26 is different from the axial spacing between the outer rings 28, 30. In this case, the outer rings 28 and 30 are in direct contact with each other when viewed in the axial direction, and the inner rings 24 and 26 are spaced apart from each other when viewed in the axial direction. An intermediate chamber is formed between 26 in the axial direction. That is, in this case, the expanding portion is formed to increase the axial rigidity.

Fig. 2 schematically shows the steps of the method according to the invention. 1 is a perspective view showing a first embodiment of a blade wheel or a guide wheel according to the present invention having two blade metal sheets engaged with each other. FIG. It is a figure which compares and shows the blade shape of the blade wheel shape | molded from the metal thin plate of the guide wheel by this invention, and a general purpose blade shape. It is sectional drawing which shows the torque converter apparatus by this invention provided with the guide wheel by this invention. It is a table | surface which shows the value in the structure in the Example of illustration, and the value in another structure mentioned as an example. It is a figure which shows another Example of the guide wheel by this invention which is a structural member of the torque converter apparatus by this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Torque converter apparatus, 2 Blade wheel or guide wheel, 10 steps, 12 steps, 14 steps, 20 1st member, 22 2nd member, 24 20 inner ring, 26 22 inner ring, 28 20 outer ring , 30 22 outer ring, 32 20 blade, 34 22 blade, 36 inner ring device, 40 universal blade shape, 42 blade shape according to the invention, 44 40 inflow edge, 46 40 outflow edge, 48 42 out of edge Inflow edge, 5042 Outflow edge, 60 Torque converter, 62 Pump wheel, 64 Turbine wheel, 66 Converter housing, 68 Converter lockup clutch, 70 Torsional vibration damper, 72 Driven shaft

Claims (9)

A guide wheel for a hydrodynamic torque converter (1),
In the type in which the guide wheel (2) has a large number of blades (32, 34),
A plurality of members (20, 22) in which the guide wheel (2) is manufactured separately and has one or more blades (32, 34) of the blades (32, 34) of the guide wheel (2). Have
These members (20, 22) is being rigidly connected to each other, have respective one of the inner ring and (24, 26) and an outer ring (28, 30),
These members (20, 22) are arranged in the following manner, that is, in the circumferential direction in which the blades (32, 34) of the different members extend around the central axis of the guide wheel (2). Arranged to be shifted from each other while forming a given intermediate chamber in the direction,
Each blade (32, 34) is formed of an integral member between the respective inflow edge and outflow edge, and as a result, each blade (32, 34) is each of the plurality of members (20, 20). are integrally formed from one of 22),
The axial distance between the two outer rings (28, 30) adjacent to each other and the axial distance between the inner rings (24, 26) arranged corresponding to the two outer rings (28, 30) increase the rigidity. A guide wheel for a hydrodynamic torque converter (1), characterized in that they differ from each other in order to form an expansion . Guide wheels (2), members having one or more blades (32, 34) (20, 22), and / or blade (32, 34) is made of sheet metal, the 請 Motomeko 1, wherein Guide wheel.   An inner ring device (24, 26) in which the guide wheel (2) is located radially inward when viewed from the central axis of the guide wheel, and an outer ring device (28, 26) that is positioned radially outward from the central axis. 30) and a number of blades (32, 34) extending between the inner ring device (24, 26) and the outer ring device (28, 30) as viewed in the radial direction. Item 3. A guide wheel according to item 1 or 2.   Each member (20, 22) having one or more blades (32, 34) has an inner ring (24; 26) and an outer ring (28; 30). 26) is a component of the inner ring device (24, 26) and the outer ring (28; 30) is a component of the outer ring device (28, 30), and the blade or blades (32, 34) Each of the blades (32, 34) of these members (20, 22) having a joint is integrally coupled with the inner ring (24, 26) of the corresponding member (20, 22), and the corresponding member. 4. The guide wheel according to claim 3, wherein the guide wheel is integrally joined with the outer ring (28, 30) of the (20, 22).   The blades (32, 34) adjacent to each other in the circumferential direction are constituent members of different members (20, 22) each having one or more blades (32, 34). A guide wheel according to claim 1.   6. The guide wheel according to claim 1, wherein the members (20, 22) each having one or a plurality of blades (32, 34) are joined while being shifted from each other in the axial direction.   The members (20, 22), each having one or more blades (32, 34), each have an inner ring (24, 26), an outer ring (28, 30) and the inner ring (24, 26). The guide wheel according to any one of the preceding claims, comprising one or more blades (32, 34) for coupling with the outer ring (28, 30). Guide wheels (2), an inner ring device located radially inward (24, 26) and the outer ring device located radially outwardly and (28, 30), said inner ring device in the radial direction (24, 26) A plurality of blades (32, 34) provided between the outer ring device (28, 30) and the minimum axial blade length (b) is not more than 9.5 mm; and The ratio of the minimum axial blade length (b) to the outer diameter (d) of the blade row (32, 34) is 0.056 or less and / or the minimum axial blade length to the converter width (B) the ratio of (b) is, is 0.18 or less, the number of blades (32, 34) is 40 or more, guide wheel according to any one of claims 1 to 7. A method of manufacturing a guide wheel (2) for a hydrodynamic torque converter (1) comprising the following steps:
Prepare at least one sheet metal or sheet metal piece,
From sheet metal or sheet metal strip, in the coupled together to form the guide wheel (2) blades and the inner and outer rings, and processed by disconnecting,
A flat sheet of metal or a flat sheet of metal sheet is processed by deformation to form a member having at least one blade (32, 34) of the guide wheel (2),
In this deformation process, one or a plurality of blades (32, 34) of the guide wheel (2) to be manufactured are moved or bent, and moved with respect to the plane of the metal thin plate or the plane of the metal thin plate piece.
A method for manufacturing a guide wheel (2) for a hydrodynamic torque converter (1), characterized by the following steps:

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