Manufacturing method of constitutional members for variable volume turbine and structure of said con

专利摘要:
SUMMARY OF THE INVENTION An object of the present invention is to simplify the structure and manufacturing work of a variable nozzle mechanism member, thereby reducing the number of manufacturing steps and manufacturing costs of the variable nozzle mechanism, while reducing the number of parts and reducing the weight of the variable capacity turbine component. The manufacturing method and the structure of a nozzle drive member are provided. A lady configured to rotationally drive the turbine rotor by flowing a working gas radially from the swirl scroll formed in the turbine casing to the turbine rotor via a plurality of nozzle vanes with variable blade angles by means of a variable nozzle mechanism. In manufacturing a structural member in an ear-type variable capacity turbine, the cylindrical pin portion is partially protruded from the side surface of the plate member by compression molding by compression, precision casting integral with the plate shape, or the like. It is characterized by forming integrally.
公开号:KR20020076129A
申请号:KR1020020015938
申请日:2002-03-25
公开日:2002-10-09
发明作者:진나이야스아끼；마쯔모또고오지；사까모또다로
申请人:미츠비시 쥬고교 가부시키가이샤；
IPC主号:

专利说明:

MANUFACTURING METHOD OF CONSTITUTIONAL MEMBERS FOR VARIABLE VOLUME TURBINE AND STRUCTURE OF SAID CONSTITUTIONAL MEMBERS}
[38] INDUSTRIAL APPLICABILITY The present invention is used in a supercharger (exhaust turbocharger) of an internal combustion engine and the like, and the working gas flows radially to a turbine rotor via a plurality of nozzle vanes having variable blade angles from a spiral scroll formed in a turbine casing. Manufacturing method of a constituent member of a variable displacement turbine configured to rotationally drive the turbine rotor, in particular a method of manufacturing a nozzle drive member for a variable nozzle mechanism and a connecting member connecting the nozzle drive member and the nozzle vane and the constituent member It's about structure.
[39] In an internal combustion engine with a supercharger, in order to match the flow rate of the exhaust gas from the engine with the gas flow rate that is the optimum operating condition of the supercharger, the exhaust gas flow rate transferred from the spiral scroll to the turbine rotor is operated. The supercharger provided with the variable capacity turbine which makes it variable according to this is used recently.
[40] One example of the prior art of the variable nozzle mechanism applied to such a variable displacement turbine is shown in Figs.
[41] Fig. 7 is a sectional view of an essential part (CC sectional view in Fig. 8) of the linkage assembly and the lever plate in the variable nozzle mechanism, and Fig. 8 is a D arrow view in Fig. 7, and in Figs. The link assembly 10 of the nozzle mechanism is fixed to the disk-shaped link plate 3 by fixing the engaging pin portion 03a separately produced from the link plate 3 by press-fitting, welding, or the like in the circumferential direction. Then, the variable nozzle mechanism fixes one end side of the lever plate 1 to the nozzle shaft 02 of each nozzle vane, and as shown in Fig. 7, substantially radial direction to the other end side of the lever plate 1. The coupling pin portion 03a of the link assembly 10 is formed in the groove portion 1c formed to be coupled with a small gap so as to hold the normal operation of the nozzle vane (not shown).
[42] However, in the prior art, a coupling pin portion 03a for coupling the disk-shaped link plate 3 and the lever plate 1 disposed in the circumferential direction thereof is manufactured separately from the link plate 3, and the link plate Since the link assembly 10 is manufactured by fixing it by means of press-fitting and welding, etc., the plurality of coupling pin parts 03a are fixed by the said means along the circumferential direction of the link plate 3. The number of processing steps for the production of the coupling pin portion 3a, and the number of steps for assembling the coupling pin portion 03a to the link plate 3 are required. The number of manufacturing processes and production costs increase.
[43] In addition, since the coupling pin portion 03a is manufactured separately from the link plate 3, the number of parts increases and the weight of the link assembly 10 also increases.
[44] SUMMARY OF THE INVENTION In view of the problems of the prior art, the present invention simplifies the structure and manufacturing work of the variable nozzle mechanism constituting members, thereby reducing the number of manufacturing steps and manufacturing costs of the variable nozzle mechanism, while reducing the number of parts and reducing the weight. It is an object to provide a method of manufacturing a variable capacity turbine component and a structure of a nozzle drive member.
[45] SUMMARY OF THE INVENTION The present invention solves this problem, and the working gas flows radially from the swirl scroll formed in the turbine casing to the turbine rotor via a plurality of nozzle vanes whose blade angle is variable by the variable nozzle mechanism. In the method of manufacturing a constituent member in a radial displacement variable capacity turbine configured to rotationally drive a turbine rotor, it is fitted to fitting portions such as grooves, holes, etc. formed in the mating member among the constituent members of the variable nozzle mechanism. In manufacturing a pin portion for transmitting a driving force to the mating member and a plate member fitted to the pin portion, a part of the surface of the plate member is protruded in a cylindrical shape to integrally form the pin portion.
[46] In this invention, preferably, in the integral formation of the pin portion and the plate-shaped member, one surface of the plate-shaped member is pressed by male hand toward the other surface side to extrude and concave the one surface to form a recess. And a cylindrical pin portion is compression molded by abutting a female mold against the other surface side corresponding to the recessed portion and protruding the other surface side of the sheet material into the female mold.
[47] Also preferably, the cylindrical pin portion is manufactured by precision casting integral with the plate member.
[48] In addition, the present invention is rotatably supported in the nozzle mount fixed to the turbine casing from the spiral scroll formed in the turbine casing, a plurality of the working gas is arranged in the circumferential direction of the turbine and the blade angle is variable by the variable nozzle mechanism And radially flows into the turbine rotor via a plurality of nozzle vanes to drive rotation of the turbine rotor, wherein the variable nozzle mechanism is rotatable around a turbine axis by an actuator to drive the nozzle vanes. A disk-shaped nozzle drive member and one end side are fixed to the nozzle shaft portions of the plurality of nozzle vanes, and the other end side is the same number as the nozzle vanes connected by engaging a coupling pin portion to the nozzle drive member by a groove or a hole. Structural members in a variable displacement turbine comprising a connecting member In the manufacturing method of the, wherein the nozzle driving member or the connecting member is formed of a plate-like member, the surface of the plate-like member is projected in a cylindrical shape by extrusion molding or precision casting by compression, the coupling pin The part is formed integrally with the plate member.
[49] In addition, the present invention, the working gas is rotatably supported by a nozzle mount fixed to the turbine casing from a spiral scroll formed in the turbine casing, a plurality of arranged along the circumferential direction of the turbine and variable blade angle by a variable nozzle mechanism And radially flows into the turbine rotor via a plurality of nozzle vanes to rotate the turbine rotor, and the variable nozzle mechanism is rotatable around the turbine shaft center by an actuator to drive the nozzle vanes. And the nozzle vane having a disc-shaped nozzle drive member and one end side fixed to the nozzle shaft portions of the plurality of nozzle vanes, respectively, and the other end side thereof being connected to the nozzle drive member by engaging a coupling pin portion with a groove or a hole. Constituent members in a variable displacement turbine comprising a connecting member In the structure of any one of the nozzle drive member or the connecting member is configured as a plate-like member, the coupling pin portion is formed integrally with the plate-like member by partially protruding the surface of the plate-like member in a cylindrical shape It is characterized by.
[50] According to the present invention, a pin portion for fitting a groove, a hole, etc. formed in the mating member among the constituent members of the variable nozzle mechanism to transmit a driving force to the mating member, and a plate member coupled to the pin portion are manufactured. A method of integrally forming the pin portion by projecting a portion of the surface of the plate member in a cylindrical shape, that is, pressing one surface of the plate member by extrusion toward the other surface side and extruding the surface to concave the surface Forming a portion at the same time as the female mold against the other surface side corresponding to the recess and protruding the other surface side of the plate member into the female mold to compress the cylindrical pin portion, or the cylindrical pin portion to the plate member And nozzle driving member and the nozzle driving member and nozzle by a method of manufacturing by precision casting integrated with Since a variable nozzle constituent member including a connecting member for connection with a phosphorus is produced, the cylindrical pin portion is produced by compression molding or precision casting on the constituent member, particularly provided along the circumferential direction of the nozzle drive member. Formation of a plurality of coupling pin portions can be formed by pressing work or precision casting of the first process.
[51] This eliminates the need for the number of machining steps for producing a coupling pin portion separate from the nozzle driving member (link plate) as in the prior art, and also eliminates the number of steps for assembling the coupling pin portion to the nozzle driving member. The coupling pin portion or the coupling member and the coupling pin portion are integrated, so that the number of manufacturing steps and the manufacturing cost of the variable capacity turbine constituent member including the nozzle driving member and the coupling member are significantly reduced than in the prior art.
[52] In addition, by integrating the nozzle drive member and the coupling pin portion or the connection member and the coupling pin portion, they become a single part, and at the same time the number of parts is reduced compared to the prior art in which the coupling pin portion is manufactured separately from the nozzle driving member (link plate). The variable capacity turbine component is lighter.
[53] Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the drawings. However, the dimensions, materials, shapes, relative arrangements, and the like of the component parts described in this embodiment are not meant to limit the scope of the present invention to only those examples, unless specifically stated otherwise. Do not.
[1] 1 is an enlarged cross-sectional view corresponding to portion Z of FIG. 3 showing a coupling portion between a link assembly and a lever plate of the variable nozzle mechanism according to the first embodiment of the present invention;
[2] Fig. 2 is a sectional view of the essential parts showing a manufacturing method of a coupling pin section in the first embodiment.
[3] Fig. 3A is a sectional view (BB line sectional view of Fig. 4) along the turbine rotation axis of the variable nozzle mechanism in the first embodiment, and Fig. 3B is a view showing the second embodiment ( Sectional view of the main part corresponding to A).
[4] Fig. 4 is a view of the arrow A in Fig. 3A.
[5] 5 is a perspective view of the engaging portion of the nozzle vane and the lever plate.
[6] 6 is a cross-sectional view along a rotation axis of the turbocharger with a variable capacity turbine to which the present invention is applied.
[7] Fig. 7 is a cross sectional view of an essential part of a connection portion of a linkage assembly and a lever plate in the prior art (C-C sectional view in Fig. 8).
[8] Fig. 8 is a view of the arrow D in Fig. 7;
[9] <Explanation of symbols for the main parts of the drawings>
[10] 1: lever plate
[11] 1b: coupling hole
[12] 1c: groove
[13] 01d: Coupling Pin
[14] 2: nozzle vane
[15] 02: nozzle shaft
[16] 3: link plate
[17] 3a: coupling pin part
[18] 3b: extrusion hole
[19] 3c: inner side
[20] 3d: outer side
[21] 03c: groove
[22] 4: nozzle mount
[23] 10: link assembly
[24] 12: nozzle plate
[25] 30: turbine casing
[26] 31: compressor casing
[27] 33: turbine rotor
[28] 34: turbine wheel
[29] 35: compressor wheel
[30] 36: bearing housing
[31] 38: scroll
[32] 40: Actuator Rod
[33] 040: Actuator
[34] 41: drive lever
[35] 51: male
[36] 52: female
[37] 100: variable nozzle mechanism
[54] 1 is an enlarged cross-sectional view corresponding to portion Z of FIG. 6 showing a coupling portion between a link assembly and a lever plate of the variable nozzle mechanism according to the first embodiment of the present invention. Fig. 2 is a sectional view of principal parts showing a method for manufacturing a coupling pin portion in the first embodiment. Fig. 3A is a sectional view (BB line sectional view of Fig. 4) along the turbine rotation axis of the variable nozzle mechanism in the first embodiment, and Fig. 3B is the Fig. 3 showing the second embodiment. It is sectional drawing of the principal part corresponding to 3 (A). Fig. 4 is a view of the arrow A in Fig. 3A. 5 is a perspective view of the engaging portion of the nozzle vane and the lever plate. 6 is a cross-sectional view along a rotation axis of a turbocharger with a variable capacity turbine to which the present invention is applied.
[55] In Fig. 6 showing the overall structure of the variable capacity turbine-mounted turbocharger to which the present invention is applied, reference numeral 30 denotes a turbine casing, and reference numeral 38 denotes a scroll formed in a spiral shape on an outer circumference of the turbine casing 30. Reference numeral 34 denotes a turbine wheel, reference numeral 35 denotes a compressor wheel, reference numeral 033 denotes a rotor shaft connecting the turbine wheel 34 and the compressor wheel 35 to constitute the turbine rotor 33.
[56] Reference numeral 08 denotes an exhaust gas outlet for sending out the exhaust gas which has been expanded by the turbine rotor 12 out of the apparatus. Reference numeral 31 denotes a compressor casing, and reference numeral 36 denotes a bearing housing connecting the compressor casing 31 and the turbine casing 30 to each other. Reference numeral 37 is a bearing attached to the bearing housing 36 to support the turbine rotor 33.
[57] Numeral 2 denotes a nozzle vane, and a plurality of nozzle shafts (02) integrally formed therein are arranged on the nozzle mount (4) fixed to the turbine casing (30) while being disposed in the circumferential direction of the turbine on the inner circumferential side of the scroll (38). It is rotatably supported and the blade angle is changed.
[58] Reference numeral 40 denotes an actuator rod which is an output end of the actuator 040 for driving the nozzle vane 2, and the reciprocating movement of the actuator rod 40 is a rotary motion via a known link mechanism including a drive lever 41. It is converted and transmitted to the link plate 3 of the variable nozzle mechanism 100 mentioned later.
[59] In the supercharger with a variable capacity turbine having such a configuration, exhaust gas from a heat-resistant engine (not shown) enters the scroll 38 and flows into the nozzle vane 2 while circulating along the vortex of the scroll 38. . The exhaust gas flows between the blades of the nozzle vanes 2 from the outer circumferential side to the turbine rotor wheel 34 and flows radially toward the center side to expand the turbine rotor 33. After that, it flows out in the axial direction and is sent out of the apparatus from the exhaust gas outlet 08.
[60] Reference numeral 100 denotes a variable nozzle mechanism, which drives rotation from the actuator 040 through a link mechanism including the actuator rod 40 and the drive lever 41 to rotate around the rotation axis 8 of the turbine rotor 33. The nozzle vane 1 is rotated by the link plate 3 through the coupling pin portion 3a and the lever plate 1 to change the blade angle.
[61] The present invention is a pin member that is fitted to a fitting portion such as a groove, a hole, and the like formed in the mating member among the constituent members of the variable nozzle mechanism 100 to transfer a driving force to the mating member, and a plate-shaped member that is coupled to the pin portion. The method of manufacturing a link plate 3 constituting the nozzle drive member, the lever plate 1 constituting the connecting member and the coupling pin portion 3a connecting the link plate 3 and the lever plate 1 and The structure of the variable nozzle mechanism 100 manufactured by this is related.
[62] 1, 2, 4, 5, and 3 (A) showing the first embodiment of the present invention, reference numeral 10 denotes a link assembly, which is described later in the disc shaped link plate 3. The coupling pin portion 3a is formed integrally in the circumferential direction.
[63] That is, as shown in Fig. 1, the inner side surface 3c of the link plate 3 (nozzle drive member) formed in a disc shape partially protrudes the inner side surface 3c into a cylindrical shape to form a link plate 3. Coupling pin portion 3a integral with the formed portion is formed. Reference numeral 3b denotes an extrusion hole formed in the outer surface 3d of the link plate 3 by extrusion molding the coupling pin portion 3a by the method described below.
[64] Reference numeral 1 denotes a lever plate, which is disposed between the nozzle mount 4 and the link plate 3 in the axial direction of the turbine, and the nozzle shaft 02 on the link plate 3 and each nozzle vane 2 side. The same number as that of the said nozzle vane 2 is connected, and the one end part side is being fixed to the nozzle shaft 02 of the said nozzle vane 2 by the means mentioned later.
[65] On the other hand, as shown in Figs. 4 and 5, the other end side of each lever plate 1 is formed with a groove portion 1c in a substantially radial direction, and the groove portion 1c is a lever plate of the link plate 3. On the side of the side (1), the same number of coupling pin portions 3a as the lever plate 1 protruded toward the lever plate 1 side are engaged as described above.
[66] 3A, reference numeral 4 denotes an annular nozzle mount fixed to the turbine casing 30. As shown in FIG. A reference numeral 12 denotes an annular nozzle plate, and a reference numeral 7 denotes a plurality of nozzle mounts 4 and the nozzle plate 12 along the circumferential direction to fix the nozzle mount 4 and the nozzle plate 12 to a fixed nozzle support ( 7), the nozzle plate 12 side engaging portion of the nozzle support 7 is fixed to the nozzle plate 12 by caulking the shaft end of the nozzle support 7 through a washer.
[67] On the other hand, the nozzle vane 2 is disposed at an inner circumferential side portion of the nozzle support 7 between the nozzle mount 4 and the nozzle plate 12, and is integral with (or nozzle vane 2) limited thereto. IN] The nozzle shaft 02 is rotatably supported by the nozzle mount 4.
[68] In Fig. 5 showing the engagement portion between the lever plate 1, the nozzle vane 2, and the nozzle shaft 02, an engagement hole to the nozzle shaft 02 is formed at one end side of the lever plate 1 ( 1b) is provided therethrough, and the coupling hole 1b is formed in a coin shape having a hole-side locking surface 1d parallel to two opposite surfaces, while the nozzle shaft 02 of the nozzle vane 2 is formed. The shaft end portion of the coupling shaft portion (02a) to be fitted to the coupling hole (1b) is formed. The coupling shaft portion 02a is formed in a coin shape having the same shape as the coupling hole 1b to which the coupling shaft portion is fitted, and the relationship between the blade angle of the nozzle vane 2 and the rotation angle of the link plate 3 is required. After setting geometrically so that the shaft side engaging surface 02b contacts the hole side engaging surface 1d, the lever plate 1, the nozzle vane 2 and the nozzle shaft 02 cannot be rotated relatively. The fitting is prevented by caulking the distal end of the coupling shaft portion 02a.
[69] Next, the manufacturing method of the link plate 3 which comprises the said nozzle drive member, the lever plate 1 which comprises a connection member, and the coupling pin part 3a which connects the said link plate 3 and the lever plate 1 is carried out. This will be described with reference to FIGS. 1, 2 and 3.
[70] In the first embodiment shown in Figs. 1, 2 and 3A, the coupling pin portion 3a is integrally formed on the link plate 3 by compression molding.
[71] That is, as shown in Fig. 2, in integrally molding the coupling pin portion 3a by compression molding, the male 51 having the outer diameter d1 having the same diameter as the outer diameter d of the coupling pin portion 3a is formed. Abuts against one side surface of the link plate 3 (ie, the outer surface 3d in FIG. 1), and at the other side side corresponding to the male 51 (i.e., the inner surface 3c in FIG. 1). )] Against the female mold 52 having the inner diameter d2 having the same diameter as the outer diameter d of the coupling pin portion 3a, pressurizing the male 51 with a pressing force F by hydraulic compression or the like and By concave the side surface to form the pressing hole 3b (concave portion), one side surface of the link plate 3 is extruded into the hole 53 of the female mold 52, and the cylindrical shape becomes the outer diameter d. The coupling pin portion (3a) of the form.
[72] In this compression molding operation, the male 51 and the female 52 are placed at a fixed position of the coupling pin portion 3a along the circumferential direction of the link plate 3 to perform a pressing operation.
[73] According to this embodiment, the male portion 51 (outer side 3d in FIG. 1) of the disc-shaped link plate 3 is directed toward the other side side (inner side 3c in FIG. 1). Press to extrude and concave said one side to form an extrusion hole 3b (concave), and the link plate in the female mold 52 opposite to the other side side corresponding to the extrusion hole 3b. The male 51 and the female 52 are projected at the fixed position of the coupling pin 3a in the circumferential direction of the link plate 3 by compressing the cylindrical pin portion by protruding the other side of (3). ), A plurality of coupling pin portions 3a can be formed by the pressing operation of the first step.
[74] As a result, a plurality of coupling pin portions 3a provided along the circumferential direction of the link plate 3 can be formed by the pressing operation of the first step, and each coupling pin portion is different from the link plate 3 as in the prior art. The number of working steps for the production of the 03d becomes unnecessary, and the number of working steps for the assembling pin portion 03a to the link plate 3 also becomes unnecessary, and the link constituted by the link plate 3 and the engaging pin portion 3a The granulated product 10 is integrated, and the number of manufacturing steps and the production cost of the link granulated product 10 are significantly reduced than in the prior art.
[75] In addition, the link assembly 10 becomes a single part by integrating the link plate 3 and the coupling pin portion 3a, and the components are compared with the prior art in which the coupling pin portion 03a is manufactured separately from the link plate 3. While the number decreases, the linkage assembly 10 becomes lightweight.
[76] In the second embodiment shown in Fig. 3B, the coupling pin portion 01d is integrally formed on the lever plate 1, and the coupling portion 3c is coupled to the groove portion 03c formed on the link plate 3 side. Consists of.
[77] In the case of integrally molding the coupling pin portion 01d by compression molding, the male 51 having the outer diameter d1 having the same diameter as the outer diameter d of the coupling pin portion 01d similar to the first embodiment is formed. The female mold 52 having the inner diameter d2 formed at the same diameter as the outer diameter d of the coupling pin portion 01d on the other side side of the lever plate 1 at the same time as the one side of the lever plate 1. To press the male mold 51 with a pressing force (F) by hydraulic compression or the like, and concave the one side to form an extrusion hole (concave portion), thereby forming the lever in the hole 53 of the female mold 52. One side of the plate 1 is extruded to form a cylindrical coupling pin portion 01d having an outer diameter d.
[78] This compression molding operation is performed continuously for each of the plurality of lever plates 1.
[79] In addition, it is also possible to integrate the coupling pin portion 3a with the link plate 3 by precision casting, or to integrate the lever plate 1 with the coupling pin portion 1d.
[80] In this case as well, the lever plate assembly in which the link assembly 10 or the lever plate 1 and the coupling pin portion 1d are integrated together with the first step can be produced.
[81] As described above, according to the present invention, a method of integrally protruding a side surface of a plate to form a cylindrical pin portion, that is, compressing and molding a cylindrical pin portion by pressing and extruding one side of the plate toward the other side side A variable capacity turbine component comprising a nozzle drive member and a connection member for connecting the nozzle drive member and the nozzle vane by a method or a method of manufacturing the cylindrical fin by integral casting with the plate. As a result, the work of manufacturing the cylindrical pin portion by compression molding or precision casting on the structural member, in particular, the formation of a plurality of coupling pin portions provided along the circumferential direction of the nozzle drive member, is pressed in the first step. It can be formed by work or precision casting work.
[82] As a result, the number of processing steps for manufacturing the respective coupling pin portions with the nozzle driving member or the connecting member becomes unnecessary, and the number of the operation steps for assembling the coupling pin portion to the nozzle driving member is also unnecessary. The coupling member and the coupling pin portion are integrated, so that the number of manufacturing steps and the manufacturing cost of the variable capacity turbine constituent member including the nozzle driving member and the coupling member can be significantly reduced than in the prior art.
[83] In addition, by integrating the nozzle drive member and the coupling pin portion or the connection member and the coupling pin portion, they become a single component, and at the same time reduce the number of parts compared to the prior art in which the coupling pin portion is manufactured separately from the nozzle driving member, The variable capacity turbine component can be reduced in weight.

权利要求:
Claims (5)
[1" claim-type="Currently amended] A lady configured to rotationally drive the turbine rotor by flowing a working gas radially from the swirl scroll formed in the turbine casing to the turbine rotor via a plurality of nozzle vanes with variable blade angles by means of a variable nozzle mechanism. In the manufacturing method of the structural member in an ear type variable capacity turbine,
In the manufacturing of the constituent member of the variable nozzle mechanism, a pin portion which is fitted to a fitting portion such as a groove or a hole formed in the mating member and transmits a driving force to the mating member, and a plate member joined to the pin portion, wherein the plate member is A method of manufacturing a variable capacity turbine component member characterized in that a part of the surface of the protruding cylindrical to form the pin portion integrally.
[2" claim-type="Currently amended] The method of claim 1, wherein in the integral formation of the pin portion and the plate-shaped member, one surface of the plate-shaped member is pressed by a male hand toward the other surface side and extruded to concave the one surface to form a recess. A method of manufacturing a variable capacity turbine component, characterized by compressing a cylindrical pin portion by abutting a female mold against the other surface side corresponding to the recess and protruding the other surface side of the plate member in the female mold.
[3" claim-type="Currently amended] The method of manufacturing a variable capacity turbine structural member according to claim 1, wherein the cylindrical pin portion is manufactured by precision casting integral with the plate member.
[4" claim-type="Currently amended] A plurality of nozzles rotatably supported by a nozzle mount fixed to the turbine casing from a vortex scroll formed on the turbine casing and arranged in a plurality of nozzles along the circumferential direction of the turbine and varying the blade angle by a variable nozzle mechanism. A disk-shaped nozzle configured to radially flow to the turbine rotor via vanes to drive the turbine rotor to rotate, and the variable nozzle mechanism is rotatable around the turbine axis by an actuator to drive the nozzle vane. And a driving member and the same number of connecting members as the nozzle vanes, one end of which is respectively fixed to the nozzle shaft portions of the plurality of nozzle vanes, and the other end of the nozzle vane is connected to the nozzle driving member by engaging a coupling pin with a groove or a hole. In the manufacturing method of the structural member in the variable displacement turbine In
Either the nozzle drive member or the connecting member is formed as a plate member, and the surface of the plate member is partially protruded into a cylindrical shape by extrusion or precision casting by compression to integrate the coupling pin portion with the plate member. Forming a variable capacity turbine component.
[5" claim-type="Currently amended] A plurality of nozzles rotatably supported by a nozzle mount fixed to the turbine casing from a vortex scroll formed on the turbine casing and arranged in a plurality of nozzles along the circumferential direction of the turbine and varying the blade angle by a variable nozzle mechanism. A disk-shaped nozzle configured to radially flow with the turbine rotor via vanes to drive the turbine rotor for rotation, and wherein the variable nozzle mechanism is rotatable around the turbine axis by an actuator to drive the nozzle vane. And a driving member and the same number of connecting members as the nozzle vanes, one end of which is respectively fixed to the nozzle shaft portion of the plurality of nozzle vanes and the other end of the nozzle vane is connected to the nozzle driving member by engaging a coupling pin portion with a groove or a hole. In the structure of the structural member in the variable displacement turbine ,
And the coupling pin portion is formed integrally with the plate-shaped member by partially protruding the surface of the plate-shaped member into a cylindrical member while forming either one of the nozzle driving member or the connecting member as a plate-shaped member. The structure of a capacitive turbine component.

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BR0200948B1|2010-11-16|

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引用文献:

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公开号 | 申请日 | 公开日 | 申请人 | 专利标题

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法律状态:
2001-03-26|Priority to JP2001088569A

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2001-03-26|Priority to JPJP-P-2001-00088569

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2002-03-25|Application filed by 미츠비시 쥬고교 가부시키가이샤

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2002-10-09|Publication of KR20020076129A

优先权:

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申请号 | 申请日 | 专利标题

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JP2001088569A|JP3776740B2|2001-03-26|2001-03-26|Manufacturing method of variable capacity turbine component and structure of component|

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JPJP-P-2001-00088569|2001-03-26|