TW201819751A - Two-sided compressor wheel of fluid compression device and manufacturing method thereof - Google Patents

Two-sided compressor wheel of fluid compression device and manufacturing method thereof Download PDF

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Publication number
TW201819751A
TW201819751A TW105138290A TW105138290A TW201819751A TW 201819751 A TW201819751 A TW 201819751A TW 105138290 A TW105138290 A TW 105138290A TW 105138290 A TW105138290 A TW 105138290A TW 201819751 A TW201819751 A TW 201819751A
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Taiwan
Prior art keywords
wheel portion
double
sided compression
compression impeller
wheel
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TW105138290A
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Chinese (zh)
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TWI608160B (en
Inventor
詹畯能
林輝鴻
洪國凱
邱馨瑩
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峰安車業股份有限公司
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Priority to TW105138290A priority Critical patent/TWI608160B/en
Priority to US15/393,210 priority patent/US20180142697A1/en
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Publication of TWI608160B publication Critical patent/TWI608160B/en
Publication of TW201819751A publication Critical patent/TW201819751A/en

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    • 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
    • F04D29/284—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for compressors
    • F04D29/285—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for compressors the compressor wheel comprising a pair of rotatable bladed hub portions axially aligned and clamped together
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08—Centrifugal pumps
    • F04D17/10—Centrifugal pumps for compressing or evacuating
    • F04D17/105—Centrifugal pumps for compressing or evacuating with double suction
    • 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
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2220/00—Application
    • F05D2220/40—Application in turbochargers

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Supercharger (AREA)

Abstract

A two-sided compressor wheel of fluid compression device includes a first wheel part and a second wheel part. The first wheel part has a plurality of first blades. A first through hole is formed on the first wheel part along a rotation axis, and a first cavity is formed at a bottom of the first wheel part. The second wheel part has a plurality of second blades. A second through hole is formed on the second wheel part along the rotation axis, and communicated with the first through hole. Wherein, the bottom of the first wheel part is connected to the bottom of the second wheel part.

Description

流體壓縮裝置的雙面壓縮葉輪及其製造方法Double-sided compression impeller of fluid compression device and manufacturing method thereof

本發明係相關於一種流體壓縮裝置的雙面壓縮葉輪，尤指一種可增加壓縮效率的流體壓縮裝置的雙面壓縮葉輪。The present invention relates to a double-sided compression impeller of a fluid compression device, and more particularly to a double-sided compression impeller of a fluid compression device that increases compression efficiency.

一般而言，渦輪增壓器是利用內燃機的排放氣體帶動渦輪增壓器的渦輪轉子轉動，而渦輪轉子會進一步對內燃機的進氣通道中的氣體增壓，以提高內燃機的功率。渦輪增壓器的渦輪轉子主要包含一渦輪葉輪(turbine wheel)、一壓縮葉輪(compressor wheel)以及一轉子軸連接於渦輪葉輪及壓縮葉輪。渦輪葉輪是用以被內燃機排氣通道中的氣體帶動旋轉，以進一步驅動壓縮葉輪轉動。壓縮葉輪再將內燃機進氣通道中的氣體壓縮以提高內燃機的功率。為了增加壓縮效率，先前技術提供一種兩面皆具有葉片的雙面壓縮葉輪。然而，雙面壓縮葉輪的重量較重，渦輪轉子需要較長的時間達到所需的轉速。因此，習知渦輪增壓器的雙面壓縮葉輪會增加渦輪延遲時間。In general, the turbocharger utilizes the exhaust gas of the internal combustion engine to drive the turbine rotor of the turbocharger to rotate, and the turbine rotor further pressurizes the gas in the intake passage of the internal combustion engine to increase the power of the internal combustion engine. The turbine rotor of the turbocharger mainly comprises a turbine wheel, a compressor wheel and a rotor shaft connected to the turbine wheel and the compression wheel. The turbine wheel is used to be rotated by the gas in the exhaust passage of the internal combustion engine to further drive the compression impeller rotation. The compression impeller compresses the gas in the intake passage of the internal combustion engine to increase the power of the internal combustion engine. In order to increase compression efficiency, the prior art provides a double-sided compression impeller having blades on both sides. However, the double-sided compression impeller is heavier and the turbine rotor takes longer to reach the required speed. Therefore, conventional double-sided compression impellers of turbochargers increase turbine delay time.

本發明之目的在於提供一種可增加壓縮效率的流體壓縮裝置的雙面壓縮葉輪及其製造方法，以解決先前技術的問題。SUMMARY OF THE INVENTION An object of the present invention is to provide a double-sided compression impeller of a fluid compression device which can increase compression efficiency and a method of manufacturing the same to solve the problems of the prior art.

本發明流體壓縮裝置的雙面壓縮葉輪包含一第一輪部以及一第二輪部。該第一輪部具有複數個第一葉片。該第一輪部沿一旋轉軸線形成有一第一通孔，且該第一輪部的底部形成有一第一凹陷部。該第二輪部具有複數個第二葉片。該第二輪部沿該旋轉軸線形成有一第二通孔連通於該第一通孔。其中該第一輪部的底部連接於該第二輪部的底部。The double-sided compression impeller of the fluid compression device of the present invention comprises a first wheel portion and a second wheel portion. The first wheel portion has a plurality of first blades. The first wheel portion is formed with a first through hole along an axis of rotation, and a bottom portion of the first wheel portion is formed with a first recessed portion. The second wheel portion has a plurality of second blades. The second wheel portion is formed with a second through hole communicating with the first through hole along the rotation axis. The bottom of the first wheel portion is connected to the bottom of the second wheel portion.

本發明流體壓縮裝置的雙面壓縮葉輪的製造方法，包含提供一第一輪部，該第一輪部具有複數個第一葉片，該第一輪部沿一旋轉軸線形成有一第一通孔，該第一輪部的底部形成有一第一凹陷部；提供一第二輪部，該第二輪部具有複數個第二葉片，該第二輪部沿該旋轉軸線形成有一第二通孔連通於該第一通孔；以及連接該第一輪部的底部至該第二輪部的底部。A method for manufacturing a double-sided compression impeller of a fluid compression device according to the present invention includes providing a first wheel portion having a plurality of first blades, the first wheel portion having a first through hole formed along an axis of rotation, a bottom portion of the first wheel portion is formed with a first recessed portion; a second wheel portion is provided, the second wheel portion has a plurality of second blades, and the second wheel portion is formed with a second through hole along the rotation axis The first through hole; and a bottom connecting the bottom of the first wheel portion to a bottom portion of the second wheel portion.

相較於先前技術，本發明流體壓縮裝置的雙面壓縮葉輪內形成有一中空結構，使得雙面壓縮葉輪的重量減少，進而進一步增加流體壓縮裝置的壓縮效率。再者，由於雙面壓縮葉輪的重量減少，當本發明雙面壓縮葉輪應用於渦輪增壓器的渦輪轉子時，渦輪轉子可以在較短時間內達到所需的轉速，進而減少渦輪延遲時間。Compared with the prior art, a hollow structure is formed in the double-sided compression impeller of the fluid compression device of the present invention, so that the weight of the double-sided compression impeller is reduced, thereby further increasing the compression efficiency of the fluid compression device. Moreover, due to the reduced weight of the double-sided compression impeller, when the double-sided compression impeller of the present invention is applied to the turbine rotor of the turbocharger, the turbine rotor can reach the required rotational speed in a shorter time, thereby reducing the turbine delay time.

請同時參考第1圖及第2圖。第1圖是本發明流體壓縮裝置的雙面壓縮葉輪的第一實施例的示意圖。第2圖是第1圖雙面壓縮葉輪的剖面圖。如圖所示，本發明流體壓縮裝置的雙面壓縮葉輪100包含一第一輪部110以及一第二輪部120。第一輪部110具有複數個第一葉片112。第一葉片112用以於雙面壓縮葉輪100轉動時對氣體進行壓縮。第一輪部110沿雙面壓縮葉輪100的旋轉軸線R形成有一第一通孔114，且第一輪部110的底部形成有一第一凹陷部116連通於第一通孔114。第一凹陷部116的徑向尺寸大於第一通孔114的徑向尺寸。第二輪部120具有複數個第二葉片122。第二葉片122用以於雙面壓縮葉輪100轉動時對氣體進行壓縮。第二輪部120沿雙面壓縮葉輪100的旋轉軸線R形成有一第二通孔124，且第二輪部120的底部形成有一第二凹陷部126連通於第二通孔124。第二凹陷部126的徑向尺寸大於第二通孔124的徑向尺寸。另外，第一葉片112和第二葉片122是面向相反方向。第一通孔114是連通於第二通孔124，以允許一轉軸穿過雙面壓縮葉輪100。Please refer to both Figure 1 and Figure 2. Fig. 1 is a schematic view showing a first embodiment of a double-sided compression impeller of the fluid compression device of the present invention. Fig. 2 is a cross-sectional view of the double-sided compression impeller of Fig. 1. As shown, the double-sided compression impeller 100 of the fluid compression device of the present invention includes a first wheel portion 110 and a second wheel portion 120. The first wheel portion 110 has a plurality of first blades 112. The first vane 112 is used to compress the gas as the double-sided compression impeller 100 rotates. The first wheel portion 110 is formed with a first through hole 114 along the rotation axis R of the double-sided compression impeller 100, and a first recess portion 116 is formed at the bottom of the first wheel portion 110 to communicate with the first through hole 114. The radial dimension of the first recess 116 is greater than the radial dimension of the first through hole 114. The second wheel portion 120 has a plurality of second blades 122. The second vane 122 is used to compress the gas as the double-sided compression impeller 100 rotates. The second wheel portion 120 is formed with a second through hole 124 along the rotation axis R of the double-sided compression impeller 100, and a second recess portion 126 is formed at the bottom of the second wheel portion 120 to communicate with the second through hole 124. The radial dimension of the second recess 126 is greater than the radial dimension of the second via 124. In addition, the first blade 112 and the second blade 122 face in opposite directions. The first through hole 114 is in communication with the second through hole 124 to allow a rotating shaft to pass through the double-sided compression impeller 100.

請參考第3圖。第3圖是本發明流體壓縮裝置的雙面壓縮葉輪的組合示意圖。如第3圖所示，本發明雙面壓縮葉輪100是將第一輪部110的底部連接於第二輪部120的底部所形成。舉例來說，第一輪部110的底部是以焊接方式(例如摩擦焊接或電子束焊接)直接連接至第二輪部120的底部以形成本發明雙面壓縮葉輪100。當以電子束焊接方式將第一輪部110的底部焊接至第二輪部120的底部時，可以將電子束集中於第一輪部110和第二輪部120的底部之間的介面以進行焊接。Please refer to Figure 3. Figure 3 is a schematic view showing the combination of the double-sided compression impeller of the fluid compression device of the present invention. As shown in FIG. 3, the double-sided compression impeller 100 of the present invention is formed by connecting the bottom of the first wheel portion 110 to the bottom of the second wheel portion 120. For example, the bottom of the first wheel portion 110 is directly joined to the bottom of the second wheel portion 120 by welding (eg, friction welding or electron beam welding) to form the double-sided compression impeller 100 of the present invention. When the bottom of the first wheel portion 110 is welded to the bottom of the second wheel portion 120 by electron beam welding, the electron beam may be concentrated on the interface between the first wheel portion 110 and the bottom portion of the second wheel portion 120 to perform welding.

另一方面，第一輪部110的底部亦可以經由一焊接材料焊接至第二輪部120的底部以形成本發明雙面壓縮葉輪100。請參考第4圖。第4圖是本發明雙面壓縮葉輪利用焊接材料焊接第一輪部及第二輪部的示意圖。如第4圖所示，本發明雙面壓縮葉輪100可另包含一焊接材料層130形成於第一輪部110的第二端及第二輪部120的底部之間，如此，第一輪部110的底部可以經由焊接材料層130焊接至第二輪部120的底部以形成本發明雙面壓縮葉輪100。Alternatively, the bottom of the first wheel portion 110 can be welded to the bottom of the second wheel portion 120 via a solder material to form the double-sided compression impeller 100 of the present invention. Please refer to Figure 4. Fig. 4 is a schematic view showing the welding of the first wheel portion and the second wheel portion by the welding material of the double-sided compression impeller of the present invention. As shown in FIG. 4, the double-sided compression impeller 100 of the present invention may further comprise a solder material layer 130 formed between the second end of the first wheel portion 110 and the bottom of the second wheel portion 120, such that the first wheel portion The bottom of the 110 may be welded to the bottom of the second wheel portion 120 via a layer of solder material 130 to form the double-sided compression impeller 100 of the present invention.

請參考第5圖。第5圖是本發明雙面壓縮葉輪應用於渦輪增壓器的渦輪轉子的示意圖。如第5圖所示，本發明渦輪轉子10包含一渦輪葉輪(turbine wheel)20、一雙面壓縮葉輪(compressor wheel)100以及一轉子軸30連接於渦輪葉輪20及雙面壓縮葉輪100之間。渦輪葉輪20是用以被內燃機排氣通道中的氣體帶動旋轉，以進一步驅動雙面壓縮葉輪100轉動。雙面壓縮葉輪100再將內燃機進氣通道中的氣體壓縮以提高內燃機的功率。由於雙面壓縮葉輪100的兩面分別形成有第一葉片112及第二葉片122，因此內燃機進氣通道中氣體的壓縮效率可以提升。另一方面，除了第一通孔114及第二通孔124之外，第一凹陷部116及第二凹陷部126在雙面壓縮葉輪100內形成一中空結構，使得雙面壓縮葉輪100的重量減少。雙面壓縮葉輪100可以用較小的力量驅動，進而進一步增加內燃機進氣通道中氣體的壓縮效率。再者，由於雙面壓縮葉輪100的重量減少，渦輪轉子10可以在較短時間內達到所需的轉速，進而減少渦輪延遲時間。Please refer to Figure 5. Figure 5 is a schematic illustration of a double-sided compression impeller of the present invention applied to a turbine rotor of a turbocharger. As shown in FIG. 5, the turbine rotor 10 of the present invention includes a turbine wheel 20, a double-sided compression impeller 100, and a rotor shaft 30 coupled between the turbine wheel 20 and the double-sided compression impeller 100. . The turbine wheel 20 is for being rotated by the gas in the exhaust passage of the internal combustion engine to further drive the rotation of the double-sided compression impeller 100. The double-sided compression impeller 100 then compresses the gas in the intake passage of the internal combustion engine to increase the power of the internal combustion engine. Since the first vane 112 and the second vane 122 are respectively formed on both sides of the double-sided compression impeller 100, the compression efficiency of the gas in the intake passage of the internal combustion engine can be improved. On the other hand, in addition to the first through hole 114 and the second through hole 124, the first recessed portion 116 and the second recessed portion 126 form a hollow structure in the double-sided compression impeller 100, so that the weight of the double-sided compression impeller 100 cut back. The double-sided compression impeller 100 can be driven with less force, thereby further increasing the compression efficiency of the gas in the intake passage of the internal combustion engine. Moreover, due to the reduced weight of the double-sided compression impeller 100, the turbine rotor 10 can achieve the required rotational speed in a relatively short period of time, thereby reducing the turbine delay time.

另一方面，本發明雙面壓縮葉輪100亦可以應用於其他流體壓縮裝置，例如吸塵器、吹風機等。本發明雙面壓縮葉輪100可以經由一轉軸連接於一動力源(例如一馬達)，以於旋轉時壓縮氣體。On the other hand, the double-sided compression impeller 100 of the present invention can also be applied to other fluid compression devices such as vacuum cleaners, hair dryers and the like. The double-sided compression impeller 100 of the present invention can be coupled to a power source (e.g., a motor) via a rotating shaft to compress the gas during rotation.

請同時參考第6圖及第7圖。第6圖是本發明流體壓縮裝置的雙面壓縮葉輪的第二實施例的示意圖。第7圖是第6圖雙面壓縮葉輪沿A-A線的剖面圖。如圖所示，在本發明雙面壓縮葉輪的第二實施例200中，第一輪部210的底部形成有複數個(或至少一)第一定位結構218，且第二輪部220的底部形成有複數個(或至少一)第二定位結構228。第二定位結構228的形狀是對應於第一定位結構218形狀，且第二定位結構228用以卡接於第一定位結構218。第一定位結構218和第二定位結構228可以避免在焊接製程中第一輪部210相對第二輪部220移動或轉動，以避免第一輪部210和第二輪部220之間有錯位，並提高焊接效率。Please also refer to Figures 6 and 7. Figure 6 is a schematic view of a second embodiment of a double-sided compression impeller of the fluid compression device of the present invention. Figure 7 is a cross-sectional view of the double-sided compression impeller of Figure 6 taken along line A-A. As shown, in the second embodiment 200 of the double-sided compression impeller of the present invention, the bottom of the first wheel portion 210 is formed with a plurality (or at least one) of the first positioning structure 218, and the bottom of the second wheel portion 220. A plurality (or at least one) of second positioning structures 228 are formed. The shape of the second positioning structure 228 is corresponding to the shape of the first positioning structure 218 , and the second positioning structure 228 is used for the first positioning structure 218 . The first positioning structure 218 and the second positioning structure 228 can prevent the first wheel portion 210 from moving or rotating relative to the second wheel portion 220 during the welding process to avoid misalignment between the first wheel portion 210 and the second wheel portion 220. And improve welding efficiency.

另外，本發明第一定位結構218和第二定位結構228的數目並不限於上述實施例，本發明雙面壓縮葉輪200包含至少一第一定位結構218和至少一第二定位結構228即可達成上述目的。In addition, the number of the first positioning structure 218 and the second positioning structure 228 of the present invention is not limited to the above embodiment, and the double-sided compression impeller 200 of the present invention includes at least one first positioning structure 218 and at least one second positioning structure 228. The above purpose.

再者，在上述實施例中，第一定位結構218是凸出於第一輪部210的底部，而第二定位結構228是從第二輪部220的底部凹陷，以使第一輪部210的第一定位結構218可以和第二輪部220的的第二定位結構228相互卡合，但本發明不以此為限。在本發明其他實施例中，第一定位結構可以是從第一輪部210的底部凹陷，而第二定位結構可以是凸出於第二輪部220的底部；或者第一定位結構可以同時具有凸起結構及凹陷結構，且第二定位結構亦可以同時具有凸起結構及凹陷結構。Moreover, in the above embodiment, the first positioning structure 218 protrudes from the bottom of the first wheel portion 210, and the second positioning structure 228 is recessed from the bottom of the second wheel portion 220, so that the first wheel portion 210 The first positioning structure 218 can be engaged with the second positioning structure 228 of the second wheel portion 220, but the invention is not limited thereto. In other embodiments of the present invention, the first positioning structure may be recessed from the bottom of the first wheel portion 210, and the second positioning structure may be protruded from the bottom of the second wheel portion 220; or the first positioning structure may have both The convex structure and the concave structure, and the second positioning structure can also have a convex structure and a concave structure at the same time.

相似地，第一輪部210的底部可以是以焊接方式(例如摩擦焊接或電子束焊接)直接連接至第二輪部220的底部以形成本發明雙面壓縮葉輪200。或者，本發明雙面壓縮葉輪200可另包含一焊接材料層(圖未示)形成於第一輪部210的底部及第二輪部220的底部之間，如此，第一輪部210的底部可以經由焊接材料層焊接至第二輪部220的底部以形成本發明雙面壓縮葉輪200。Similarly, the bottom of the first wheel portion 210 may be directly joined to the bottom of the second wheel portion 220 by welding (eg, friction welding or electron beam welding) to form the double-sided compression impeller 200 of the present invention. Alternatively, the double-sided compression impeller 200 of the present invention may further comprise a layer of solder material (not shown) formed between the bottom of the first wheel portion 210 and the bottom of the second wheel portion 220, such that the bottom of the first wheel portion 210 The double-sided compression impeller 200 of the present invention may be formed by welding a layer of solder material to the bottom of the second wheel portion 220.

請同時參考第8圖及第9圖。第8圖是本發明流體壓縮裝置的雙面壓縮葉輪的第三實施例的示意圖。第9圖是第8圖雙面壓縮葉輪沿A-A線的剖面圖。如圖所示，在本發明雙面壓縮葉輪的第三實施例300中，第一輪部310的底部形成有複數個第一凹陷部316，且第二輪部320的底部形成有複數個第二凹陷部326。第一凹陷部316不連通於第一通孔314。第二凹陷部326不連通於第二通孔324。Please also refer to Figures 8 and 9. Figure 8 is a schematic view of a third embodiment of a double-sided compression impeller of the fluid compression device of the present invention. Figure 9 is a cross-sectional view of the double-sided compression impeller of Figure 8 taken along line A-A. As shown in the figure, in the third embodiment 300 of the double-sided compression impeller of the present invention, a plurality of first recessed portions 316 are formed at the bottom of the first wheel portion 310, and a plurality of first portions are formed at the bottom of the second wheel portion 320. Two recessed portions 326. The first recessed portion 316 is not in communication with the first through hole 314. The second recessed portion 326 does not communicate with the second through hole 324.

另外，本發明第一凹陷部316和第二凹陷部326的數目並不限於上述實施例。本發明雙面壓縮葉輪300亦可包含一環形的第一凹陷部圍繞第一通孔314以及一環形的第二凹陷部圍繞第二通孔324。再者，雙面壓縮葉輪300的第一輪部310和第二輪部320亦可以另包含相對應的定位結構相互卡合。In addition, the number of the first depressed portion 316 and the second depressed portion 326 of the present invention is not limited to the above embodiment. The double-sided compression impeller 300 of the present invention may further include an annular first recess surrounding the first through hole 314 and an annular second recess surrounding the second through hole 324. Furthermore, the first wheel portion 310 and the second wheel portion 320 of the double-sided compression impeller 300 may further comprise corresponding positioning structures that are engaged with each other.

相似地，第一輪部310的底部可以是以焊接方式(例如摩擦焊接或電子束焊接)直接連接至第二輪部320的底部以形成本發明雙面壓縮葉輪300。或者，本發明雙面壓縮葉輪300可另包含一焊接材料層(圖未示)形成於第一輪部310的底部及第二輪部320的底部之間，如此，第一輪部310的底部可以經由焊接材料層焊接至第二輪部320的底部以形成本發明雙面壓縮葉輪300。Similarly, the bottom of the first wheel portion 310 may be directly joined to the bottom of the second wheel portion 320 by welding (eg, friction welding or electron beam welding) to form the double-sided compression impeller 300 of the present invention. Alternatively, the double-sided compression impeller 300 of the present invention may further comprise a layer of solder material (not shown) formed between the bottom of the first wheel portion 310 and the bottom of the second wheel portion 320, such that the bottom of the first wheel portion 310 The double-sided compression impeller 300 of the present invention may be formed by welding a layer of solder material to the bottom of the second wheel portion 320.

另一方面，在上述實施例中，本發明雙面壓縮葉輪100、200、300的第一輪部110、210、310及第二輪部120、220、320不一定要對稱。舉例來說，本發明雙面壓縮葉輪100、200、300亦可以只在單一輪部形成有凹陷部。或者，當第一輪部110、210、310及第二輪部120、220、320皆形成有凹陷部時，第一凹陷部及第二凹陷部的形狀、位置及數目可以相異。另外，第一通孔114、214、314及第二通孔124、224、324的尺寸可以相異，且第一葉片112、212、312及第二葉片122、222、322的形狀輪廓亦可以相異。On the other hand, in the above embodiment, the first wheel portions 110, 210, 310 and the second wheel portions 120, 220, 320 of the double-sided compression impellers 100, 200, 300 of the present invention are not necessarily symmetrical. For example, the double-sided compression impeller 100, 200, 300 of the present invention may be formed with a recess only in a single wheel portion. Alternatively, when the first wheel portions 110, 210, 310 and the second wheel portions 120, 220, and 320 are all formed with recessed portions, the shapes, positions, and numbers of the first recessed portions and the second recessed portions may be different. In addition, the sizes of the first through holes 114, 214, 314 and the second through holes 124, 224, 324 may be different, and the shape contours of the first blades 112, 212, 312 and the second blades 122, 222, 322 may also be Different.

再者，本發明雙面壓縮葉輪100、200、300可以是由金屬製成，但本發明不以此為限。第一輪部110、210、310及第二輪部120、220、320的連接方式不限於焊接，第一輪部110、210、310及第二輪部120、220、320亦可以使用黏著材料相連接。Furthermore, the double-sided compression impeller 100, 200, 300 of the present invention may be made of metal, but the invention is not limited thereto. The connection manner of the first wheel portions 110, 210, 310 and the second wheel portions 120, 220, 320 is not limited to welding, and the first wheel portions 110, 210, 310 and the second wheel portions 120, 220, 320 may also use an adhesive material. Connected.

請參考第10圖。第10圖為本發明渦輪增壓器的雙面壓縮葉輪的製造方法的流程圖400。本發明渦輪增壓器的雙面壓縮葉輪的製造方法的製造方法的流程如下列步驟：Please refer to Figure 10. Figure 10 is a flow chart 400 of a method of manufacturing a double-sided compression impeller of a turbocharger of the present invention. The flow of the manufacturing method of the method for manufacturing the double-sided compression impeller of the turbocharger of the present invention is as follows:

步驟410：提供一第一輪部，該第一輪部具有複數個第一葉片，該第一輪部沿一旋轉軸線形成有一第一通孔，該第一輪部的底部形成有一第一凹陷部；Step 410: providing a first wheel portion having a plurality of first blades, the first wheel portion is formed with a first through hole along an axis of rotation, and a first recess is formed at a bottom portion of the first wheel portion unit;

步驟420：提供一第二輪部，該第二輪部具有複數個第二葉片，該第二輪部沿該旋轉軸線形成有一第二通孔連通於該第一通孔；以及Step 420: providing a second wheel portion having a plurality of second blades, the second wheel portion forming a second through hole communicating with the first through hole along the rotation axis;

步驟430：連接該第一輪部的底部至該第二輪部的底部。Step 430: connecting the bottom of the first wheel portion to the bottom of the second wheel portion.

另外，本發明雙面壓縮葉輪的製造方法並不一定要依照以上順序，且其他步驟也可以介於上述步驟之間。In addition, the manufacturing method of the double-sided compression impeller of the present invention is not necessarily in accordance with the above order, and other steps may be interposed between the above steps.

相較於先前技術，本發明流體壓縮裝置的雙面壓縮葉輪內形成有一中空結構，使得雙面壓縮葉輪的重量減少，進而進一步增加流體壓縮裝置的壓縮效率。再者，由於雙面壓縮葉輪的重量減少，當本發明雙面壓縮葉輪應用於渦輪增壓器的渦輪轉子時，渦輪轉子可以在較短時間內達到所需的轉速，進而減少渦輪延遲時間。 以上所述僅為本發明之較佳實施例，凡依本發明申請專利範圍所做之均等變化與修飾，皆應屬本發明之涵蓋範圍。Compared with the prior art, a hollow structure is formed in the double-sided compression impeller of the fluid compression device of the present invention, so that the weight of the double-sided compression impeller is reduced, thereby further increasing the compression efficiency of the fluid compression device. Moreover, due to the reduced weight of the double-sided compression impeller, when the double-sided compression impeller of the present invention is applied to the turbine rotor of the turbocharger, the turbine rotor can reach the required rotational speed in a shorter time, thereby reducing the turbine delay time. The above are only the preferred embodiments of the present invention, and all changes and modifications made to the scope of the present invention should be within the scope of the present invention.

10‧‧‧渦輪轉子
20‧‧‧渦輪葉輪
30‧‧‧轉子軸
100、200、300‧‧‧雙面壓縮葉輪
110、210、310‧‧‧第一輪部
112、212、312‧‧‧第一葉片
114、214、314‧‧‧第一通孔
116、216、316‧‧‧第一凹陷部
120、220、320‧‧‧第二輪部
122、222、322‧‧‧第二葉片
124、224、324‧‧‧第二通孔
126、226、326‧‧‧第二凹陷部
130‧‧‧焊接材料層
218‧‧‧第一定位結構
228‧‧‧第二定位結構
400‧‧‧流程圖
410至430‧‧‧步驟
R‧‧‧旋轉軸線10‧‧‧ turbine rotor
20‧‧‧ turbine impeller
30‧‧‧Rotor shaft
100, 200, 300‧‧‧ double-sided compression impeller
110, 210, 310‧‧‧ first round
112, 212, 312‧‧‧ first blade
114, 214, 314‧‧‧ first through hole
116, 216, 316‧‧‧ first depression
120, 220, 320‧‧‧ second round
122, 222, 322‧‧‧ second blade
124, 224, 324‧‧‧ second through hole
126, 226, 326‧‧‧ second depression
130‧‧‧Welding material layer
218‧‧‧First positioning structure
228‧‧‧Second positioning structure
400‧‧‧ Flowchart
410 to 430‧‧ steps
R‧‧‧Rotation axis

第1圖是本發明流體壓縮裝置的雙面壓縮葉輪的第一實施例的爆炸圖。 第2圖是第1圖雙面壓縮葉輪的剖面圖。 第3圖是本發明流體壓縮裝置的雙面壓縮葉輪的組合示意圖。 第4圖是本發明雙面壓縮葉輪利用焊接材料焊接第一輪部及第二輪部的示意圖。 第5圖是本發明雙面壓縮葉輪應用於渦輪增壓器的渦輪轉子的示意圖。 第6圖是本發明流體壓縮裝置的雙面壓縮葉輪的第二實施例的示意圖。 第7圖是第6圖雙面壓縮葉輪沿A-A線的剖面圖。 第8圖是本發明流體壓縮裝置的雙面壓縮葉輪的第三實施例的示意圖。 第9圖是第8圖雙面壓縮葉輪沿A-A線的剖面圖。 第10圖是本發明渦輪轉子的製造方法的流程圖。Figure 1 is an exploded view of a first embodiment of a double-sided compression impeller of a fluid compression device of the present invention. Fig. 2 is a cross-sectional view of the double-sided compression impeller of Fig. 1. Figure 3 is a schematic view showing the combination of the double-sided compression impeller of the fluid compression device of the present invention. Fig. 4 is a schematic view showing the welding of the first wheel portion and the second wheel portion by the welding material of the double-sided compression impeller of the present invention. Figure 5 is a schematic illustration of a double-sided compression impeller of the present invention applied to a turbine rotor of a turbocharger. Figure 6 is a schematic view of a second embodiment of a double-sided compression impeller of the fluid compression device of the present invention. Figure 7 is a cross-sectional view of the double-sided compression impeller of Figure 6 taken along line A-A. Figure 8 is a schematic view of a third embodiment of a double-sided compression impeller of the fluid compression device of the present invention. Figure 9 is a cross-sectional view of the double-sided compression impeller of Figure 8 taken along line A-A. Figure 10 is a flow chart showing a method of manufacturing the turbine rotor of the present invention.

Claims (14)

一種流體壓縮裝置的雙面壓縮葉輪，包含： 一第一輪部，具有複數個第一葉片，該第一輪部沿一旋轉軸線形成有一第一通孔，且該第一輪部的底部形成有一第一凹陷部；以及 一第二輪部，具有複數個第二葉片，該第二輪部沿該旋轉軸線形成有一第二通孔連通於該第一通孔； 其中該第一輪部的底部連接於該第二輪部的底部。A double-sided compression impeller of a fluid compression device, comprising: a first wheel portion having a plurality of first blades, the first wheel portion forming a first through hole along an axis of rotation, and a bottom portion of the first wheel portion is formed a first recessed portion; and a second wheel portion having a plurality of second vanes, the second wheel portion is formed with a second through hole communicating with the first through hole along the rotation axis; wherein the first wheel portion The bottom is connected to the bottom of the second wheel portion. 如請求項1所述的雙面壓縮葉輪，其中該第一凹陷部連通於該第一通孔，且該第一凹陷部的徑向尺寸大於該第一通孔的徑向尺寸。The double-sided compression impeller according to claim 1, wherein the first recess portion communicates with the first through hole, and a radial dimension of the first recess portion is larger than a radial dimension of the first through hole. 如請求項1所述的雙面壓縮葉輪，其中該第一凹陷部不連通於該第一通孔。The double-sided compression impeller of claim 1, wherein the first recess is not in communication with the first through hole. 如請求項1所述的雙面壓縮葉輪，其中該第二輪部的底部形成有一第二凹陷部。The double-sided compression impeller according to claim 1, wherein a bottom portion of the second wheel portion is formed with a second recess. 如請求項4所述的雙面壓縮葉輪，其中該第二凹陷部連通於該第二通孔，且該第二凹陷部的徑向尺寸大於該第二通孔的徑向尺寸。The double-sided compression impeller according to claim 4, wherein the second recess portion communicates with the second through hole, and a radial dimension of the second recess portion is larger than a radial dimension of the second through hole. 如請求項4所述的雙面壓縮葉輪，其中該第二凹陷部不連通於該第二通孔。The double-sided compression impeller of claim 4, wherein the second recess does not communicate with the second through hole. 如請求項1所述的雙面壓縮葉輪，其中該第一輪部的底部形成有至少一第一定位結構，該第二輪部的底部形成有至少一第二定位結構對應於該至少一第一定位結構，該至少一第二定位結構卡接於該該至少一第一定位結構。The double-sided compression impeller according to claim 1, wherein the bottom of the first wheel portion is formed with at least one first positioning structure, and the bottom of the second wheel portion is formed with at least one second positioning structure corresponding to the at least one a positioning structure, the at least one second positioning structure is engaged with the at least one first positioning structure. 如請求項7所述的雙面壓縮葉輪，其中該至少一第一定位結構是凸出於該第一輪部的第二端。The double-sided compression impeller of claim 7, wherein the at least one first positioning structure protrudes from the second end of the first wheel portion. 如請求項7所述的雙面壓縮葉輪，其中該至少一第一定位結構是從該第一輪部的第二端凹陷。The double-sided compression impeller of claim 7, wherein the at least one first positioning structure is recessed from the second end of the first wheel portion. 如請求項1所述的雙面壓縮葉輪，另包含一焊接材料層連接於該第一輪部的第二端及該第二輪部的第二端之間。The double-sided compression impeller of claim 1, further comprising a layer of solder material connected between the second end of the first wheel portion and the second end of the second wheel portion. 一種流體壓縮裝置的雙面壓縮葉輪的製造方法，包含： 提供一第一輪部，該第一輪部具有複數個第一葉片，該第一輪部沿一旋轉軸線形成有一第一通孔，該第一輪部的底部形成有至少一凹陷部； 提供一第二輪部，該第二輪部具有複數個第二葉片，該第二輪部沿該旋轉軸線形成有一第二通孔連通於該第一通孔；以及 連接該第一輪部的底部至該第二輪部的底部。A method for manufacturing a double-sided compression impeller of a fluid compression device, comprising: providing a first wheel portion having a plurality of first blades, the first wheel portion forming a first through hole along an axis of rotation, The bottom of the first wheel portion is formed with at least one recessed portion; a second wheel portion is provided, the second wheel portion has a plurality of second blades, and the second wheel portion is formed with a second through hole along the rotation axis The first through hole; and a bottom connecting the bottom of the first wheel portion to a bottom portion of the second wheel portion. 如請求項11所述的製造方法，其中該第一輪部的底部形成有一第一定位結構，該第二輪部的底部形成有一第二定位結構對應於該第一定位結構，該製造方法另包含將該第二定位結構卡接於該第一定位結構。The manufacturing method of claim 11, wherein a bottom portion of the first wheel portion is formed with a first positioning structure, and a bottom portion of the second wheel portion is formed with a second positioning structure corresponding to the first positioning structure, and the manufacturing method is further The second positioning structure is coupled to the first positioning structure. 如請求項11所述的製造方法，其中該第一輪部的底部是直接焊接至該第二輪部的底部。The manufacturing method of claim 11, wherein the bottom of the first wheel portion is directly welded to the bottom of the second wheel portion. 如請求項11所述的製造方法，其中該第一輪部的底部是經由一焊接材料焊接至該第二輪部的底部。The manufacturing method of claim 11, wherein the bottom of the first wheel portion is welded to the bottom of the second wheel portion via a solder material.
TW105138290A 2016-11-22 2016-11-22 Two-sided compressor wheel of fluid compression device and manufacturing method thereof TWI608160B (en)

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