WO2018195838A1 - Impeller turbine assembly and turbocharger - Google Patents

Impeller turbine assembly and turbocharger Download PDF

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Publication number
WO2018195838A1
WO2018195838A1 PCT/CN2017/082081 CN2017082081W WO2018195838A1 WO 2018195838 A1 WO2018195838 A1 WO 2018195838A1 CN 2017082081 W CN2017082081 W CN 2017082081W WO 2018195838 A1 WO2018195838 A1 WO 2018195838A1
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WO
WIPO (PCT)
Prior art keywords
impeller
rotating shaft
turbine
ring
nut
Prior art date
Application number
PCT/CN2017/082081
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French (fr)
Chinese (zh)
Inventor
刘大
Original Assignee
刘大
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 刘大 filed Critical 刘大
Priority to PCT/CN2017/082081 priority Critical patent/WO2018195838A1/en
Publication of WO2018195838A1 publication Critical patent/WO2018195838A1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • F01D11/02—Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/08—Sealings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/30—Vanes

Definitions

  • the present invention relates to the field of mechanical technology, and more particularly to an impeller turbine assembly and a turbocharger.
  • a turbocharger is actually an air compressor that uses compressed air to increase the amount of intake air. It uses the inertial force of the exhaust gas from the engine to push the turbine in the turbine chamber.
  • the turbine drives the coaxial impeller.
  • the impeller presses the air sent by the air filter pipe to pressurize it into the cylinder.
  • the exhaust gas discharge speed and the turbine speed also increase, the impeller compresses more air into the cylinder, and the pressure and density of the air increase to burn more fuel, correspondingly increase the fuel amount and adjust the engine speed. It is possible to increase the output power of the engine.
  • the present invention provides an impeller turbine assembly and a turbocharger for more stably mounting the impeller on a rotating shaft.
  • An impeller turbine assembly includes a rotating shaft, one end of which is mounted with an impeller, and the other end is mounted with a turbine, the impeller is provided with an impeller through hole that cooperates with a rotating shaft, and the rotating shaft is further provided with a pressure a nut close to the impeller, the nut is close to an end position of the rotating shaft, and the rotating shaft is further provided with an oil retaining ring that is matched with the impeller, a fixed distance bushing that is matched with the oil retaining ring, and a distance
  • the sleeve fits the thrust ring, the oil slinger, the distance sleeve and the thrust ring are all near the middle position of the rotating shaft; and the friction welding point is arranged between the rotating shaft and the turbine.
  • the nut is provided with magnetic steel
  • the impeller is provided with a top end groove
  • the nut is provided with a protruding portion that cooperates with the top end groove.
  • a thrust washer is disposed between the protruding portion and the top end groove.
  • the tail end of the impeller is provided with a converging portion, and the converging portion includes a tail ring groove, and the oil slinger is in close contact with the converging portion.
  • the rotating shaft includes a first shaft portion and a second shaft portion that are connected to each other, the diameter of the first shaft portion is smaller than a diameter of the second shaft portion, and the impeller is mounted on the first shaft Upper portion, the turbine is coupled to the second shaft portion.
  • the oil slinger, the distance bushing and the thrust ring are mounted on the first shaft portion, and the thrust ring is in close contact with the end surface of the second shaft portion.
  • the turbine includes a turbine body and a connecting portion between the rotating shaft and the turbine body.
  • a turbocharger comprising an impeller turbine assembly as described above.
  • the impeller turbine assembly of the present invention includes a rotating shaft, one end of the rotating shaft is mounted with an impeller, and the other end is equipped with a turbine, and the impeller is provided with an impeller through hole that cooperates with the rotating shaft, and the rotating shaft is further provided with a nut for pressing the impeller, the nut is close to an end position of the rotating shaft, and the rotating shaft further has an oil retaining ring attached to the impeller, and a fixed distance bushing that is matched with the oil retaining ring, and The thrust ring is fitted with a thrust ring, and the oil slinger, the fixed distance sleeve and the thrust ring are all near the middle position of the rotating shaft; and the friction welding point is arranged between the rotating shaft and the turbine.
  • the impeller can be fixed from both ends of the impeller by the nut and the oil slinger, the spacer sleeve and the thrust ring, so that the impeller is stably fixed on the rotating shaft, ensuring the safety and running time of the impeller. Stability; and the rotating shaft and the turbine are connected by friction welding, and the friction welding connection strength is high, so that the connection between the turbine and the rotating shaft is stabilized, and the turbine is stably fixed; thus the impeller and the turbine assembly can be fixed and stabilized. , to ensure the normal operation of the supercharger.
  • FIG. 1 is a schematic view of an impeller and a turbine assembly in accordance with an embodiment of the present invention
  • Figure 2 is a cross-sectional view of a nut of an embodiment of the present invention.
  • Figure 3 is a plan view of a nut of an embodiment of the present invention.
  • Figure 4 is a cross-sectional view of the oil slinger of the embodiment of the present invention.
  • Figure 5 is a cross-sectional view of a spacer bushing according to an embodiment of the present invention.
  • Figure 6 is a cross-sectional view of a thrust collar of an embodiment of the present invention.
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining “first” and “second” may include one or more of the features either explicitly or implicitly.
  • a plurality means two or more unless otherwise stated.
  • the term “comprises” and its variations are intended to cover a non-exclusive inclusion.
  • connection In the description of the present invention, it should be noted that the terms “installation”, “connected”, and “connected” are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined. Connected, or integrally connected; can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of the two components.
  • Connected, or integrally connected can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of the two components.
  • the specific meaning of the above terms in the present invention can be understood in a specific case by those skilled in the art.
  • an embodiment of the present invention discloses an impeller turbine assembly including a rotating shaft 3.
  • One end of the rotating shaft 3 is mounted with an impeller 1 and the other end is equipped with a turbine 2, and the impeller 1 is provided.
  • the oil retaining ring 5 is attached to the impeller 1, the fixed distance sleeve 6 is engaged with the oil retaining ring 5, and the thrust ring 7 is attached to the fixed distance sleeve 6.
  • the oil retaining ring 5 and the distance Both the sleeve 6 and the thrust collar 7 are close to the middle position of the rotating shaft 3; a friction welding joint is provided between the rotating shaft 3 and the turbine 2.
  • the impeller turbine assembly of the present invention includes a rotating shaft 3, one end of which is mounted with an impeller 1 and the other end is provided with a turbine 2, and the impeller 1 is provided with an impeller through hole 19 that cooperates with a rotating shaft.
  • the rotating shaft 3 is further provided with a nut 2 for pressing the impeller 1, the nut 2 is close to the end position of the rotating shaft 3, and the rotating shaft 3 is further provided with a slinger 5 attached to the impeller 1 a spacer sleeve 6 that is engaged with the slinger 5, and a thrust ring 7 that is attached to the spacer sleeve 6.
  • the slinger 5, the spacer sleeve 6 and the thrust collar 7 are both close to the rotation axis.
  • the impeller can be fixed from both ends of the impeller 1 through the nut 2 and the slinger 5, the spacer sleeve 6 and the thrust collar 7, so that the impeller 1 is stably fixed on the rotating shaft 3, and the impeller is secured.
  • a magnetic steel 41 is disposed on the nut 2, and the impeller is provided with a top end groove 28, and the nut 2 is provided with a protruding portion 31 that cooperates with the top end groove 18. In this way, the impeller 1 can be pressed and stabilized by the nut 2 Fixed impeller 1.
  • the nut 2 includes a first through hole 21 that cooperates with the rotating shaft 3, and the first through hole 21 includes a threaded hole 22 for mounting on the rotating shaft 3, and a magnetic steel hole for mounting the magnetic steel. 23 and a stepped hole 24 through which the rotating shaft 3 passes.
  • the threaded hole 22 is located between the magnetic steel hole 23 and the stepped hole 24.
  • the diameter of the magnetic steel hole 23 is larger than the inner diameter of the threaded hole 22, and is smaller than The outer diameter of the threaded hole 22.
  • the diameter of the stepped hole 24 is larger than the outer diameter of the threaded hole 22. This makes it easy to mount the rotary shaft 3 into the threaded hole 22 and screw it with the threaded hole 22.
  • the nut 2 includes a base portion 25 and a boss portion 26, and a screwing portion 27 is disposed between the base portion 25 and the boss portion 26, and the magnet steel hole 23 is disposed in the boss portion 26, the step A hole 24 is provided in the base portion 25, and the threaded hole 22 passes through the screwing portion 27 and the base portion 25.
  • the outer side of the twisting portion 27 has a hexagonal nut shape. This makes it easy to install the nut 2.
  • the base portion 25 is provided with a rounded portion 28 at a position adjacent to the twisting portion 27, and the rounded portion 28 is provided with a rounded corner 29. Setting the round 29 makes it easy to install the nut 2; it also reduces the risk of high-speed rotation.
  • the protruding portion 31 is disposed on the base portion 25, and the rounded portion 28 is provided with a ring groove 32 adjacent to the protruding portion 31. This makes it possible to position the impeller 1 by means of the projections 31 which can accommodate the lubricating oil and reduce the wear of the impeller 1.
  • the nut 2 is made of aluminum alloy. The aluminum alloy is strong and has a small seal and is also easy to manufacture.
  • a thrust washer 17 is provided between the protruding portion 31 and the top end groove 18. This can prevent the nut 2 from falling off easily during the working process, and ensure that the nut 2 is stably mounted on the rotating shaft 3, and the impeller 1 is pressed.
  • the end of the impeller 1 is provided with a converging portion 16, and the converging portion 16 includes a tail ring groove 15, and the oil slinger 5 is in close contact with the converging portion 16.
  • the provision of the tail ring groove 15 can reduce the moment of inertia when the impeller 1 rotates, thereby reducing the centrifugal force of the rotation of the impeller 1, and ensuring stable operation of the impeller 1.
  • the rotating shaft 3 includes a first shaft portion 38 and a second shaft portion 39 that are connected to each other, the diameter of the first shaft portion 38 is smaller than the diameter of the second shaft portion 39, and the impeller 1 is mounted on the first
  • the turbine portion is coupled to the second shaft portion 39 on the shaft portion 38.
  • the impeller 1 can be fitted to the first shaft portion 38 to fix the impeller 1 from both ends.
  • the slinger 5, the spacer bushing 6 and the thrust ring 7 are mounted on the first shaft portion 38, and the thrust ring 5 abuts against the end surface of the second shaft portion 39.
  • the use of the slinger 5, the spacer bushing 6 and the thrust collar 7 makes it possible to fix the impeller 1 more stably.
  • the slinger 5 includes a ring body 51.
  • One side of the ring body 51 is provided with a first protrusion 52, and the other side is provided with a second protrusion 53.
  • the first protrusion 52 cooperates with the impeller 1, the ring body
  • the outer edge of 51 is provided with an outer ring portion 54, which includes a first slope portion 55 on the same side as the first protrusion 52 and a second surface on the same side as the second protrusion 53
  • the inclined surface portion 56 is provided with a ring groove 57 on the ring body, and the ring groove 57 is located between the first inclined surface portion 55 and the first protrusion 52.
  • the slinger 5 includes a ring body through hole 58 for cooperating with the rotating shaft 3, the ring body through hole 58 passing through the first protrusion 52 and the second protrusion 53. In this way, the slinger 5 can be mounted on the rotating shaft 3, and the ring through hole 58 and the rotating shaft 3 can be selected as a transition fit.
  • the opening of the ring through hole 58 is chamfered. This facilitates the installation of the oil retaining ring 5.
  • the inclination angle a1 of the first slope portion 55 is larger or smaller than the inclination angle a2 of the second slope portion 56.
  • the inclination angles of the first inclined surface portion 55 and the second inclined surface portion 56 can make the connection between the outer ring portion 54 and the ring body 51 more stable, increasing the connection strength between the outer ring portion 54 and the ring body 51.
  • the inclination angle a1 of the first slope portion 55 is smaller than the inclination angle a2 of the second slope portion 56. This arrangement makes it possible to make the outer diameter of the slinger 5 larger on the one hand, while the connection between the outer ring portion 54 and the ring body 51 is more stable.
  • the height of the first protrusion 52 is higher than the height of the outer ring portion 54. This allows interference between the slinger 5 and the impeller 1 to ensure proper operation of the impeller 1, the slinger 5 and the like.
  • the sleeve sleeve 6 includes a sleeve body 61.
  • the sleeve body 61 is provided with a sleeve through hole 62 that cooperates with the rotating shaft 3.
  • the sleeve body 61 is provided with a first convex ring 63 on the outer surface thereof.
  • the thrust ring 7 includes a ring body 71.
  • the ring body 71 is provided with a ring body through hole 72 which is matched with the rotating shaft.
  • the ring body through hole 72 is provided with a second convex ring 73.
  • the material of the spacer bushing 6 can be made of aluminum alloy or cast iron, and the material of the thrust ring 7 can be made of aluminum alloy or cast iron.
  • a chamfer 74 is provided at the position of the opening of the ring through hole 72. This makes it easy to install the thrust collar 7.
  • the thickness of the first convex ring 63 is 0.85 cm. This thickness allows the first collar 63 to be stably connected to the sleeve body 61 while facilitating production.
  • the second convex ring 73 has a thickness of 1 cm. This thickness allows the second collar 73 to be stably connected to the ring body 71 while facilitating production.
  • the outer diameter of the ring body 71 is larger than the outer diameter of the first convex ring 63.
  • the spacer sleeve 6 is mounted closer to the impeller 1 and the thrust collar 7 is further away from the impeller 1, so that the arrangement makes the impeller 1 more stable to install.
  • the turbine 4 includes a turbine body 49 and a connecting portion 48 that is located between the rotating shaft 3 and the turbine body 49. This makes it possible to facilitate the friction welding of the turbine 4 with the rotating shaft 3, and the connecting portion 48 can be shaft-shaped, thus avoiding the position where the friction welded joint portion is concentrated in stress, thereby making the turbine 4 and the rotating shaft 3 firmly connected.
  • a turbocharger comprising an impeller turbine assembly as described above.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supercharger (AREA)

Abstract

Provided is an impeller turbine assembly, comprising a rotating shaft (3), with one end of the rotating shaft (3) being installed with an impeller (1), and the other end thereof being installed with a turbine (4), wherein the impeller (1) is provided with an impeller through hole (19) matching the rotating shaft (3); the rotating shaft (3) is further provided with a nut (2) compressing the impeller (1), and the nut (2) is close to an end position of the rotating shaft (3); the rotating shaft (3) is further provided with an oil deflector ring (5) fitted with the impeller (1), a distance bush (6) fitted with the oil deflector ring (5), and a thrust ring (7) fitted with the distance bush (6), and the oil deflector ring (5), the distance bush (6) and the thrust ring (7) are all close to a middle position of the rotating shaft (3); and a friction welding point is provided between the rotating shaft (3) and the turbine (4). Firmly fixing the impeller to the rotating shaft ensures the safety of fixation of the impeller and the stability thereof during the operation; and the rotating shaft and the turbine are connected together by means of friction welding, where the friction welding achieves a high strength of connection, thereby achieving a stable connection between the turbine and the rotating shaft, so as to firmly fix the turbine.

Description

叶轮涡轮总成及涡轮增压器Impeller turbine assembly and turbocharger 【技术领域】[Technical Field]
本发明涉及机械技术领域，更具体的说，涉及一种叶轮涡轮总成及涡轮增压器。The present invention relates to the field of mechanical technology, and more particularly to an impeller turbine assembly and a turbocharger.
【背景技术】【Background technique】
涡轮增压器实际上是一种空气压缩机，通过压缩空气来增加进气量。它是利用发动机排出的废气惯性冲力来推动涡轮室内的涡轮，涡轮又带动同轴的叶轮，叶轮压送由空气滤清器管道送来的空气，使之增压进入气缸。当发动机转速增大，废气排出速度与涡轮转速也同步增加，叶轮就压缩更多的空气进入气缸，空气的压力和密度增大可以燃烧更多的燃料，相应增加燃料量和调整发动机的转速，就可以增加发动机的输出功率了。A turbocharger is actually an air compressor that uses compressed air to increase the amount of intake air. It uses the inertial force of the exhaust gas from the engine to push the turbine in the turbine chamber. The turbine drives the coaxial impeller. The impeller presses the air sent by the air filter pipe to pressurize it into the cylinder. When the engine speed increases, the exhaust gas discharge speed and the turbine speed also increase, the impeller compresses more air into the cylinder, and the pressure and density of the air increase to burn more fuel, correspondingly increase the fuel amount and adjust the engine speed. It is possible to increase the output power of the engine.
增压器中叶轮的转速极快，甚至可达到每分钟上万转，因此，如何提供一种将叶轮和涡轮固定稳定的叶轮涡轮总成，成为亟需解决的问题。The speed of the impeller in the supercharger is extremely fast, even reaching tens of thousands of revolutions per minute. Therefore, how to provide an impeller turbine assembly that stabilizes the impeller and the turbine is an urgent problem to be solved.
【发明内容】[Summary of the Invention]
本发明提供了一种叶轮涡轮总成及涡轮增压器，以将叶轮更稳定的安装在旋转轴上。The present invention provides an impeller turbine assembly and a turbocharger for more stably mounting the impeller on a rotating shaft.
本发明的目的是通过以下技术方案来实现的：The object of the present invention is achieved by the following technical solutions:
一种叶轮涡轮总成，包括旋转轴，所述旋转轴的一端安装有叶轮，另一端安装有涡轮，所述叶轮设有与旋转轴配合的叶轮通孔，所述旋转轴上还设有压紧所述叶轮的螺母，所述螺母靠近旋转轴的端部位置，所述旋转轴上还设有与叶轮贴合的挡油环，与挡油环贴合的定距轴套，与定距轴套贴合的止推环，所述挡油环、定距轴套和止推环均靠近旋转轴的中部位置；所述旋转轴与涡轮之间设有摩擦焊接点。 An impeller turbine assembly includes a rotating shaft, one end of which is mounted with an impeller, and the other end is mounted with a turbine, the impeller is provided with an impeller through hole that cooperates with a rotating shaft, and the rotating shaft is further provided with a pressure a nut close to the impeller, the nut is close to an end position of the rotating shaft, and the rotating shaft is further provided with an oil retaining ring that is matched with the impeller, a fixed distance bushing that is matched with the oil retaining ring, and a distance The sleeve fits the thrust ring, the oil slinger, the distance sleeve and the thrust ring are all near the middle position of the rotating shaft; and the friction welding point is arranged between the rotating shaft and the turbine.
优选的，所述螺母上设有磁钢，所述叶轮上设有顶端凹槽，所述螺母上设有与所述顶端凹槽配合的突出部。Preferably, the nut is provided with magnetic steel, the impeller is provided with a top end groove, and the nut is provided with a protruding portion that cooperates with the top end groove.
优选的，所述突出部与所述顶端凹槽之间设有止推垫片。Preferably, a thrust washer is disposed between the protruding portion and the top end groove.
优选的，所述叶轮的尾端设有收束部，所述收束部包括尾部环槽，所述挡油环与所述收束部紧贴。Preferably, the tail end of the impeller is provided with a converging portion, and the converging portion includes a tail ring groove, and the oil slinger is in close contact with the converging portion.
优选的，所述旋转轴包括相互连接的第一轴部和第二轴部，所述第一轴部的直径比所述第二轴部的直径小，所述叶轮安装在所述第一轴部上，所述涡轮与第二轴部连接。Preferably, the rotating shaft includes a first shaft portion and a second shaft portion that are connected to each other, the diameter of the first shaft portion is smaller than a diameter of the second shaft portion, and the impeller is mounted on the first shaft Upper portion, the turbine is coupled to the second shaft portion.
优选的，所述挡油环、定距轴套和止推环安装在所述第一轴部上，所述止推环与所述第二轴部的端面紧贴。Preferably, the oil slinger, the distance bushing and the thrust ring are mounted on the first shaft portion, and the thrust ring is in close contact with the end surface of the second shaft portion.
优选的，所述涡轮包括涡轮主体和连接部，所述连接部位于所述旋转轴和涡轮主体之间。Preferably, the turbine includes a turbine body and a connecting portion between the rotating shaft and the turbine body.
一种涡轮增压器，包括如上述任一一种叶轮涡轮总成。A turbocharger comprising an impeller turbine assembly as described above.
本发明中的叶轮涡轮总成由于包括旋转轴，所述旋转轴的一端安装有叶轮，另一端安装有涡轮，所述叶轮设有与旋转轴配合的叶轮通孔，所述旋转轴上还设有压紧所述叶轮的螺母，所述螺母靠近旋转轴的端部位置，所述旋转轴上还设有与叶轮贴合的挡油环，与挡油环贴合的定距轴套，与定距轴套贴合的止推环，所述挡油环、定距轴套和止推环均靠近旋转轴的中部位置；所述旋转轴与涡轮之间设有摩擦焊接点。采用这种方式就可以通过螺母与挡油环、定距轴套和止推环从叶轮的两端将叶轮固定，从而将叶轮稳定的固定在旋转轴上，保证叶轮固定的安全性和运行时的稳定性；并且旋转轴与涡轮之间采用摩擦焊接连接在一起，摩擦焊接连接强度高，从而让涡轮与旋转轴连接稳定，将涡轮稳定的固定；这样就可以让叶轮和涡轮总成固定稳定，为增压器的正常工作提供保证。The impeller turbine assembly of the present invention includes a rotating shaft, one end of the rotating shaft is mounted with an impeller, and the other end is equipped with a turbine, and the impeller is provided with an impeller through hole that cooperates with the rotating shaft, and the rotating shaft is further provided with a nut for pressing the impeller, the nut is close to an end position of the rotating shaft, and the rotating shaft further has an oil retaining ring attached to the impeller, and a fixed distance bushing that is matched with the oil retaining ring, and The thrust ring is fitted with a thrust ring, and the oil slinger, the fixed distance sleeve and the thrust ring are all near the middle position of the rotating shaft; and the friction welding point is arranged between the rotating shaft and the turbine. In this way, the impeller can be fixed from both ends of the impeller by the nut and the oil slinger, the spacer sleeve and the thrust ring, so that the impeller is stably fixed on the rotating shaft, ensuring the safety and running time of the impeller. Stability; and the rotating shaft and the turbine are connected by friction welding, and the friction welding connection strength is high, so that the connection between the turbine and the rotating shaft is stabilized, and the turbine is stably fixed; thus the impeller and the turbine assembly can be fixed and stabilized. , to ensure the normal operation of the supercharger.
【附图说明】 [Description of the Drawings]
图1是本发明实施例的叶轮和涡轮总成的示意图；1 is a schematic view of an impeller and a turbine assembly in accordance with an embodiment of the present invention;
图2是本发明实施例的螺母的剖视图；Figure 2 is a cross-sectional view of a nut of an embodiment of the present invention;
图3是本发明实施例的螺母的俯视图；Figure 3 is a plan view of a nut of an embodiment of the present invention;
图4是本发明实施例的挡油环的剖视图Figure 4 is a cross-sectional view of the oil slinger of the embodiment of the present invention
图5是本发明实施例的定距轴套的剖视图；Figure 5 is a cross-sectional view of a spacer bushing according to an embodiment of the present invention;
图6是本发明实施例的止推环的剖视图。Figure 6 is a cross-sectional view of a thrust collar of an embodiment of the present invention.
附图标记：Reference mark:
1-叶轮，2-螺母，3-旋转轴，4-涡轮，5-挡油环，6-定距轴套，7-止推环，15-尾部环槽，16-收束部，17-止推垫片，18-顶端凹槽，19-叶轮通孔，21-第一通孔，22-螺纹孔，23-磁钢孔，24-台阶孔，25-基座部，26-凸起部，27-拧动部，28-圆角部，29-倒圆角，31-突出部，32-环槽，41-磁钢，48-连接部，49-涡轮主体，38-第一轴部，39-第二轴部，51-环体，52-第一凸起，53-第二凸起，54-外环部，55-第一斜面部，56-第二斜面部，57-环槽，58-环体通孔，61-轴套主体，62-轴套通孔，63-第一凸环，71-环体，72-环体通孔，73-第二凸环，74-倒角。1-impeller, 2-nut, 3-rotary shaft, 4-turbo, 5-oil slinger, 6-sleeve bushing, 7-thrust ring, 15-tail ring groove, 16-conduit, 17- Thrust washer, 18-top groove, 19-impeller through hole, 21-first through hole, 22-threaded hole, 23-magnet hole, 24-step hole, 25-base portion, 26-bump , 27-screw, 28-round, 29-round, 31-protrusion, 32-ring groove, 41-magnet, 48-joint, 49-turbine body, 38-first shaft Portion, 39-second shaft portion, 51-ring body, 52-first protrusion, 53-second protrusion, 54-outer ring portion, 55-first slope portion, 56-second slope portion, 57- Ring groove, 58-ring through hole, 61-sleeve body, 62-sleeve through hole, 63-first convex ring, 71-ring body, 72-ring body through hole, 73-second convex ring, 74 - chamfering.
【具体实施方式】【detailed description】
在本发明的描述中，需要理解的是，术语“中心”、“横向”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本发明的描述中，除非另有说明，“多个”的含义是两个或两个以上。另外，术语“包括”及其任何变形，意图在于覆盖不排他的包含。 In the description of the present invention, it is to be understood that the terms "center", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", The orientation or positional relationship of the "bottom", "inside", "outside" and the like is based on the orientation or positional relationship shown in the drawings, and is merely for the convenience of describing the present invention and simplifying the description, and does not indicate or imply the indicated device. Or the components must have a particular orientation, are constructed and operated in a particular orientation, and thus are not to be construed as limiting the invention. Moreover, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" and "second" may include one or more of the features either explicitly or implicitly. In the description of the present invention, "a plurality" means two or more unless otherwise stated. In addition, the term "comprises" and its variations are intended to cover a non-exclusive inclusion.
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。In the description of the present invention, it should be noted that the terms "installation", "connected", and "connected" are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined. Connected, or integrally connected; can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of the two components. The specific meaning of the above terms in the present invention can be understood in a specific case by those skilled in the art.
下面结合附图和较佳的实施例对本发明作进一步说明。The invention will now be further described with reference to the drawings and preferred embodiments.
如图1至图3所示，本发明实施例公开一种叶轮涡轮总成，包括旋转轴3，所述旋转轴3的一端安装有叶轮1，另一端安装有涡轮2，所述叶轮1设有与旋转轴配合的叶轮通孔19，所述旋转轴3上还设有压紧所述叶轮1的螺母2，所述螺母2靠近旋转轴3的端部位置，所述旋转轴3上还设有与叶轮1贴合的挡油环5，与挡油环5贴合的定距轴套6，与定距轴套6贴合的止推环7，所述挡油环5、定距轴套6和止推环7均靠近旋转轴3的中部位置；所述旋转轴3与涡轮2之间设有摩擦焊接点。As shown in FIG. 1 to FIG. 3 , an embodiment of the present invention discloses an impeller turbine assembly including a rotating shaft 3. One end of the rotating shaft 3 is mounted with an impeller 1 and the other end is equipped with a turbine 2, and the impeller 1 is provided. There is an impeller through hole 19 which cooperates with a rotating shaft, and the rotating shaft 3 is further provided with a nut 2 for pressing the impeller 1, the nut 2 is close to the end position of the rotating shaft 3, and the rotating shaft 3 is further The oil retaining ring 5 is attached to the impeller 1, the fixed distance sleeve 6 is engaged with the oil retaining ring 5, and the thrust ring 7 is attached to the fixed distance sleeve 6. The oil retaining ring 5 and the distance Both the sleeve 6 and the thrust collar 7 are close to the middle position of the rotating shaft 3; a friction welding joint is provided between the rotating shaft 3 and the turbine 2.
本发明中的叶轮涡轮总成由于包括旋转轴3，所述旋转轴3的一端安装有叶轮1，另一端安装有涡轮2，所述叶轮1设有与旋转轴配合的叶轮通孔19，所述旋转轴3上还设有压紧所述叶轮1的螺母2，所述螺母2靠近旋转轴3的端部位置，所述旋转轴3上还设有与叶轮1贴合的挡油环5，与挡油环5贴合的定距轴套6，与定距轴套6贴合的止推环7，所述挡油环5、定距轴套6和止推环7均靠近旋转轴3的中部位置；所述旋转轴3与涡轮2之间设有摩擦焊接点。采用这种方式就可以通过螺母2与挡油环5、定距轴套6和止推环7从叶轮1的两端将叶轮固定，从而将叶轮1稳定的固定在旋转轴3上，保证叶轮1固定的安全性和运行时的稳定性；并且旋转轴3与涡轮4之间采用摩擦焊接连接在一起，摩擦焊接连接强度高，从而让涡轮4与旋转轴3连接稳定，将涡轮4稳定的固定；这样就可以让叶轮和涡轮总成固定稳定，为增压器的正常工作提供保证。The impeller turbine assembly of the present invention includes a rotating shaft 3, one end of which is mounted with an impeller 1 and the other end is provided with a turbine 2, and the impeller 1 is provided with an impeller through hole 19 that cooperates with a rotating shaft. The rotating shaft 3 is further provided with a nut 2 for pressing the impeller 1, the nut 2 is close to the end position of the rotating shaft 3, and the rotating shaft 3 is further provided with a slinger 5 attached to the impeller 1 a spacer sleeve 6 that is engaged with the slinger 5, and a thrust ring 7 that is attached to the spacer sleeve 6. The slinger 5, the spacer sleeve 6 and the thrust collar 7 are both close to the rotation axis. A middle position of 3; a friction welding joint is provided between the rotating shaft 3 and the turbine 2. In this way, the impeller can be fixed from both ends of the impeller 1 through the nut 2 and the slinger 5, the spacer sleeve 6 and the thrust collar 7, so that the impeller 1 is stably fixed on the rotating shaft 3, and the impeller is secured. 1 fixed safety and stability during operation; and the rotating shaft 3 and the turbine 4 are connected by friction welding, and the friction welding connection strength is high, so that the connection between the turbine 4 and the rotating shaft 3 is stabilized, and the turbine 4 is stabilized. Fixed; this allows the impeller and turbine assembly to be fixed and stable, ensuring the normal operation of the supercharger.
螺母2上设有磁钢41，所述叶轮上设有顶端凹槽28，所述螺母2上设有与所述顶端凹槽18配合的突出部31。这样就可以通过螺母2将叶轮1压紧，稳定 的固定叶轮1。本实施例中，螺母2包括与旋转轴3配合的第一通孔21，所述第一通孔21包括用于安装在旋转轴3上的螺纹孔22、用于安装磁钢的磁钢孔23和供旋转轴3穿过的台阶孔24，所述螺纹孔22位于所述磁钢孔23与台阶孔24之间，所述磁钢孔23的直径大于所述螺纹孔22的内径，小于所述螺纹孔22的外径。A magnetic steel 41 is disposed on the nut 2, and the impeller is provided with a top end groove 28, and the nut 2 is provided with a protruding portion 31 that cooperates with the top end groove 18. In this way, the impeller 1 can be pressed and stabilized by the nut 2 Fixed impeller 1. In the present embodiment, the nut 2 includes a first through hole 21 that cooperates with the rotating shaft 3, and the first through hole 21 includes a threaded hole 22 for mounting on the rotating shaft 3, and a magnetic steel hole for mounting the magnetic steel. 23 and a stepped hole 24 through which the rotating shaft 3 passes. The threaded hole 22 is located between the magnetic steel hole 23 and the stepped hole 24. The diameter of the magnetic steel hole 23 is larger than the inner diameter of the threaded hole 22, and is smaller than The outer diameter of the threaded hole 22.
台阶孔24的直径大于所述螺纹孔22的外径。这样可以方便旋转轴3安装到螺纹孔22中，与螺纹孔22螺纹配合拧紧。The diameter of the stepped hole 24 is larger than the outer diameter of the threaded hole 22. This makes it easy to mount the rotary shaft 3 into the threaded hole 22 and screw it with the threaded hole 22.
螺母2包括基座部25和凸起部26，所述基座部25与凸起部26之间设有拧动部27，所述磁钢孔23设置在凸起部26内，所述台阶孔24设置在所述基座部25内，所述螺纹孔22穿过所述拧动部27和基座部25。这样可以让螺母2结构稳定，方便安装。拧动部27外侧呈六角螺母状。这样方便安装螺母2。基座部25与拧动部27相邻位置处设置圆角部28，所述圆角部28上设有倒圆角29。设置倒圆角29可以方便安装螺母2；而且减少高速旋转时产生的危险。The nut 2 includes a base portion 25 and a boss portion 26, and a screwing portion 27 is disposed between the base portion 25 and the boss portion 26, and the magnet steel hole 23 is disposed in the boss portion 26, the step A hole 24 is provided in the base portion 25, and the threaded hole 22 passes through the screwing portion 27 and the base portion 25. This allows the nut 2 to be structurally stable and easy to install. The outer side of the twisting portion 27 has a hexagonal nut shape. This makes it easy to install the nut 2. The base portion 25 is provided with a rounded portion 28 at a position adjacent to the twisting portion 27, and the rounded portion 28 is provided with a rounded corner 29. Setting the round 29 makes it easy to install the nut 2; it also reduces the risk of high-speed rotation.
突出部31设置在基座部25上，所述圆角部28上设有环槽32，所述环槽32与所述突出部31相邻。这样可以利用突出部31为叶轮1定位，环槽32可以容纳润滑油，减少叶轮1磨损。螺母2的材质为铝合金。铝合金坚固且密封较小，也方便制造。The protruding portion 31 is disposed on the base portion 25, and the rounded portion 28 is provided with a ring groove 32 adjacent to the protruding portion 31. This makes it possible to position the impeller 1 by means of the projections 31 which can accommodate the lubricating oil and reduce the wear of the impeller 1. The nut 2 is made of aluminum alloy. The aluminum alloy is strong and has a small seal and is also easy to manufacture.
突出部31与所述顶端凹槽18之间设有止推垫片17。这样可以防止在工作过程中螺母2轻易的脱落，保证螺母2稳定的安装在旋转轴3上，压紧叶轮1。A thrust washer 17 is provided between the protruding portion 31 and the top end groove 18. This can prevent the nut 2 from falling off easily during the working process, and ensure that the nut 2 is stably mounted on the rotating shaft 3, and the impeller 1 is pressed.
叶轮1的尾端设有收束部16，所述收束部16包括尾部环槽15，所述挡油环5与所述收束部16紧贴。设置尾部环槽15可以减少叶轮1旋转时的转动惯量，从而减少叶轮1转动的离心力，保证叶轮1工作稳定。The end of the impeller 1 is provided with a converging portion 16, and the converging portion 16 includes a tail ring groove 15, and the oil slinger 5 is in close contact with the converging portion 16. The provision of the tail ring groove 15 can reduce the moment of inertia when the impeller 1 rotates, thereby reducing the centrifugal force of the rotation of the impeller 1, and ensuring stable operation of the impeller 1.
旋转轴3包括相互连接的第一轴部38和第二轴部39，所述第一轴部38的直径比所述第二轴部39的直径小，所述叶轮1安装在所述第一轴部38上，所述涡轮与第二轴部39连接。这样就可以将叶轮1套装在第一轴部38，从而从两端将叶轮1固定。 The rotating shaft 3 includes a first shaft portion 38 and a second shaft portion 39 that are connected to each other, the diameter of the first shaft portion 38 is smaller than the diameter of the second shaft portion 39, and the impeller 1 is mounted on the first The turbine portion is coupled to the second shaft portion 39 on the shaft portion 38. Thus, the impeller 1 can be fitted to the first shaft portion 38 to fix the impeller 1 from both ends.
挡油环5、定距轴套6和止推环7安装在所述第一轴部38上，所述止推环5与所述第二轴部39的端面紧贴。使用挡油环5、定距轴套6和止推环7可以将叶轮1固定的更加稳定。The slinger 5, the spacer bushing 6 and the thrust ring 7 are mounted on the first shaft portion 38, and the thrust ring 5 abuts against the end surface of the second shaft portion 39. The use of the slinger 5, the spacer bushing 6 and the thrust collar 7 makes it possible to fix the impeller 1 more stably.
挡油环5包括环体51，所述环体51的一面设有第一凸起52，另一面设有第二凸起53，所述第一凸起52与叶轮1配合，所述环体51的外边缘设有外环部54，所述外环部54包括与所述第一凸起52在同一面的第一斜面部55和与所述第二凸起53在同一面的第二斜面部56，所述环体的上设有环槽57，所述环槽57位于所述第一斜面部55与第一凸起52之间。The slinger 5 includes a ring body 51. One side of the ring body 51 is provided with a first protrusion 52, and the other side is provided with a second protrusion 53. The first protrusion 52 cooperates with the impeller 1, the ring body The outer edge of 51 is provided with an outer ring portion 54, which includes a first slope portion 55 on the same side as the first protrusion 52 and a second surface on the same side as the second protrusion 53 The inclined surface portion 56 is provided with a ring groove 57 on the ring body, and the ring groove 57 is located between the first inclined surface portion 55 and the first protrusion 52.
挡油环5包括用于与旋转轴3配合的环体通孔58，所述环体通孔穿58过所述第一凸起52和第二凸起53。这样可以将挡油环5安装在旋转轴3上，环体通孔58与旋转轴可3选为过渡配合。The slinger 5 includes a ring body through hole 58 for cooperating with the rotating shaft 3, the ring body through hole 58 passing through the first protrusion 52 and the second protrusion 53. In this way, the slinger 5 can be mounted on the rotating shaft 3, and the ring through hole 58 and the rotating shaft 3 can be selected as a transition fit.
环体通孔58的孔口设有倒角。这样可以方便挡油环5的安装。The opening of the ring through hole 58 is chamfered. This facilitates the installation of the oil retaining ring 5.
第一斜面部55的倾斜角度a1比所述第二斜面部56的倾斜角度a2大或小。第一斜面部55和第二斜面部56的倾斜角度可以让外环部54与环体51之间连接更加稳固，增加外环部54与环体51之间的连接强度。The inclination angle a1 of the first slope portion 55 is larger or smaller than the inclination angle a2 of the second slope portion 56. The inclination angles of the first inclined surface portion 55 and the second inclined surface portion 56 can make the connection between the outer ring portion 54 and the ring body 51 more stable, increasing the connection strength between the outer ring portion 54 and the ring body 51.
第一斜面部55的倾斜角度a1比所述第二斜面部56的倾斜角度a2小。这样设置一方面可以让挡油环5的外径更大，而同时外环部54与环体51之间连接的更加稳定。The inclination angle a1 of the first slope portion 55 is smaller than the inclination angle a2 of the second slope portion 56. This arrangement makes it possible to make the outer diameter of the slinger 5 larger on the one hand, while the connection between the outer ring portion 54 and the ring body 51 is more stable.
第一凸起52的高度高于所述外环部54的高度。这样可以让挡油环5与叶轮1之间不会产生干涉，保证叶轮1、挡油环5等部件的正常工作。The height of the first protrusion 52 is higher than the height of the outer ring portion 54. This allows interference between the slinger 5 and the impeller 1 to ensure proper operation of the impeller 1, the slinger 5 and the like.
定距轴套6包括轴套主体61，所述轴套主体61上设有与旋转轴3配合的轴套通孔62，所述轴套主体61的外表面上设有第一凸环63，所述止推环7包括环体71，所述环体71上设有与所述旋转轴配3合的环体通孔72，所述环体通孔72内设有第二凸环73。The sleeve sleeve 6 includes a sleeve body 61. The sleeve body 61 is provided with a sleeve through hole 62 that cooperates with the rotating shaft 3. The sleeve body 61 is provided with a first convex ring 63 on the outer surface thereof. The thrust ring 7 includes a ring body 71. The ring body 71 is provided with a ring body through hole 72 which is matched with the rotating shaft. The ring body through hole 72 is provided with a second convex ring 73.
定距轴套6的材质可以采用铝合金或铸铁等，止推环7材质可以采用铝合金或铸铁等。 The material of the spacer bushing 6 can be made of aluminum alloy or cast iron, and the material of the thrust ring 7 can be made of aluminum alloy or cast iron.
本实施例中，环体通孔72的孔口位置处设有倒角74。这样可以方便安装止推环7。In this embodiment, a chamfer 74 is provided at the position of the opening of the ring through hole 72. This makes it easy to install the thrust collar 7.
第一凸环63的厚度为0.85cm。这种厚度可以让第一凸环63与轴套主体61连接稳定，同时方便生产。The thickness of the first convex ring 63 is 0.85 cm. This thickness allows the first collar 63 to be stably connected to the sleeve body 61 while facilitating production.
第二凸环73的厚度为1cm。这种厚度可以让第二凸环73与环体71连接稳定，同时方便生产。The second convex ring 73 has a thickness of 1 cm. This thickness allows the second collar 73 to be stably connected to the ring body 71 while facilitating production.
环体71的外径大于所述第一凸环63的外径。定距轴套6安装时更加靠近叶轮1，而止推环7较远离叶轮1，因此这样设置可以让叶轮1安装更加稳定。The outer diameter of the ring body 71 is larger than the outer diameter of the first convex ring 63. The spacer sleeve 6 is mounted closer to the impeller 1 and the thrust collar 7 is further away from the impeller 1, so that the arrangement makes the impeller 1 more stable to install.
涡轮4包括涡轮主体49和连接部48，所述连接部48位于所述旋转轴3和涡轮主体49之间。这样就可以方便涡轮4与旋转轴3的摩擦焊接，连接部48可以为轴状，这样避免了摩擦焊接的连接部分在应力集中的位置，从而使涡轮4与旋转轴3连接牢固。The turbine 4 includes a turbine body 49 and a connecting portion 48 that is located between the rotating shaft 3 and the turbine body 49. This makes it possible to facilitate the friction welding of the turbine 4 with the rotating shaft 3, and the connecting portion 48 can be shaft-shaped, thus avoiding the position where the friction welded joint portion is concentrated in stress, thereby making the turbine 4 and the rotating shaft 3 firmly connected.
一种涡轮增压器，包括如上述任一一种叶轮涡轮总成。A turbocharger comprising an impeller turbine assembly as described above.
以上内容是结合具体的优选实施方式对本发明所作的进一步详细说明，不能认定本发明的具体实施只局限于这些说明。对于本发明所属技术领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干简单推演或替换，都应当视为属于本发明的保护范围。 The above is a further detailed description of the present invention in connection with the specific preferred embodiments, and the specific embodiments of the present invention are not limited to the description. It will be apparent to those skilled in the art that the present invention may be made without departing from the spirit and scope of the invention.

Claims (8)

  1. 一种叶轮涡轮总成，其特征在于，包括旋转轴，所述旋转轴的一端安装有叶轮，另一端安装有涡轮，所述叶轮设有与旋转轴配合的叶轮通孔，所述旋转轴上还设有压紧所述叶轮的螺母，所述螺母靠近旋转轴的端部位置，所述旋转轴上还设有与叶轮贴合的挡油环，与挡油环贴合的定距轴套，与定距轴套贴合的止推环，所述挡油环、定距轴套和止推环均靠近旋转轴的中部位置；所述旋转轴与涡轮之间设有摩擦焊接点。An impeller turbine assembly, comprising: a rotating shaft, one end of the rotating shaft is mounted with an impeller, and the other end is mounted with a turbine, and the impeller is provided with an impeller through hole that cooperates with a rotating shaft, the rotating shaft There is also a nut for pressing the impeller, the nut is close to an end position of the rotating shaft, and the rotating shaft is further provided with an oil retaining ring that is matched with the impeller, and a fixed distance bushing that is matched with the oil retaining ring. The thrust ring is matched with the fixed distance sleeve, and the oil retaining ring, the fixed distance sleeve and the thrust ring are all near the middle position of the rotating shaft; and the friction welding point is arranged between the rotating shaft and the turbine.
  2. 根据权利要求1所述的叶轮涡轮总成，其特征在于，所述螺母上设有磁钢，所述叶轮上设有顶端凹槽，所述螺母上设有与所述顶端凹槽配合的突出部。The impeller turbine assembly according to claim 1, wherein the nut is provided with a magnetic steel, the impeller is provided with a top end groove, and the nut is provided with a protrusion that cooperates with the top end groove. unit.
  3. 根据权利要求2所述的叶轮涡轮总成，其特征在于，所述突出部与所述顶端凹槽之间设有止推垫片。The impeller turbine assembly of claim 2 wherein a thrust washer is disposed between the projection and the top end groove.
  4. 根据权利要求2所述的叶轮涡轮总成，其特征在于，所述叶轮的尾端设有收束部，所述收束部包括尾部环槽，所述挡油环与所述收束部紧贴。The impeller turbine assembly according to claim 2, wherein a tail end of the impeller is provided with a converging portion, the converging portion includes a tail ring groove, and the oil retaining ring is tightly coupled to the converging portion paste.
  5. 根据权利要求4所述的叶轮涡轮总成，其特征在于，所述旋转轴包括相互连接的第一轴部和第二轴部，所述第一轴部的直径比所述第二轴部的直径小，所述叶轮安装在所述第一轴部上，所述涡轮与第二轴部连接。The impeller turbine assembly according to claim 4, wherein said rotating shaft comprises a first shaft portion and a second shaft portion connected to each other, said first shaft portion having a diameter larger than said second shaft portion The diameter is small, the impeller is mounted on the first shaft portion, and the turbine is coupled to the second shaft portion.
  6. 根据权利要求5所述的叶轮涡轮总成，其特征在于，所述挡油环、定距轴套和止推环安装在所述第一轴部上，所述止推环与所述第二轴部的端面紧贴。The impeller turbine assembly of claim 5 wherein said slinger, spacer sleeve and thrust collar are mounted on said first shaft portion, said thrust collar and said second The end faces of the shafts are in close contact.
  7. 根据权利要求1所述的叶轮涡轮总成，其特征在于，所述涡轮包括涡轮主体和连接部，所述连接部位于所述旋转轴和涡轮主体之间。The impeller turbine assembly of claim 1 wherein the turbine includes a turbine body and a connection between the rotating shaft and the turbine body.
  8. 一种涡轮增压器，其特征在于，包括如权利要求1至7任一一种叶轮涡轮总成。 A turbocharger comprising an impeller turbine assembly according to any of claims 1-7.
PCT/CN2017/082081 2017-04-26 2017-04-26 Impeller turbine assembly and turbocharger WO2018195838A1 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1400399A (en) * 2002-08-01 2003-03-05 孙敏超 Small-type radial-flow or mixed-flow turbo supercharger
US20060013693A1 (en) * 2004-07-13 2006-01-19 Honeywell International, Inc. Outer diameter nut piloting for improved rotor balance
CN201096013Y (en) * 2007-08-30 2008-08-06 大连经济技术开发区泽通机械有限公司 Large power natural gas engine turbo-charger oil seal device
US20100178132A1 (en) * 2007-06-13 2010-07-15 Continental Automotive Gmbh Magnetized Nut For Fastening a Compressor Wheel of an Exhaust Turbocharger to the Turbo Shaft, and Method for the Production Thereof
CN103306739A (en) * 2013-07-04 2013-09-18 中国航空动力机械研究所 Centripetal impeller for gas turbine engine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1400399A (en) * 2002-08-01 2003-03-05 孙敏超 Small-type radial-flow or mixed-flow turbo supercharger
US20060013693A1 (en) * 2004-07-13 2006-01-19 Honeywell International, Inc. Outer diameter nut piloting for improved rotor balance
US20100178132A1 (en) * 2007-06-13 2010-07-15 Continental Automotive Gmbh Magnetized Nut For Fastening a Compressor Wheel of an Exhaust Turbocharger to the Turbo Shaft, and Method for the Production Thereof
CN201096013Y (en) * 2007-08-30 2008-08-06 大连经济技术开发区泽通机械有限公司 Large power natural gas engine turbo-charger oil seal device
CN103306739A (en) * 2013-07-04 2013-09-18 中国航空动力机械研究所 Centripetal impeller for gas turbine engine

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