CN207499906U - A kind of combined flow turbine shaft assembly - Google Patents
A kind of combined flow turbine shaft assembly Download PDFInfo
- Publication number
- CN207499906U CN207499906U CN201721660298.4U CN201721660298U CN207499906U CN 207499906 U CN207499906 U CN 207499906U CN 201721660298 U CN201721660298 U CN 201721660298U CN 207499906 U CN207499906 U CN 207499906U
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- CN
- China
- Prior art keywords
- impeller disk
- vertical section
- blade
- impeller
- disk
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
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Abstract
The utility model is related to a kind of combined flow turbine shaft assemblies,The combined flow turbine shaft assembly includes the impeller and turbine wheel shaft that are fixedly linked,The impeller includes the blade of the impeller disk and multiple same structures,Each blade includes vertical section and inverted sections,Vertical section is set perpendicular to the end face of the impeller disk and the bottom end of vertical section is connected with the impeller disk,Along the edge of the impeller disk, setting is stretched out in oblique upper to the outer side edges of vertical section outward,Included angle A between the vertical section outer side edges and impeller disk axial direction is 35 °,Along the edge of the impeller disk, setting is stretched out in oblique upper to blade vertical section outward,The maximum outside diameter of the blade assembly of blade composition is more than the diameter of the impeller disk,The outer side edges of blade vertical section are no longer normal to the impeller disk and axially set,So that gas changes in the impeller disk and the flow direction of blade vertical section junction,Compared to the arrangement of radial-flow turbine component,There are guide functions with axial oblique,Improve turbine efficiency.
Description
Technical field
The utility model is related to turbocharger apparatus technical field, particularly a kind of combined flow turbine shaft assembly.
Background technology
Turbocharger is using the high-temp waste gas of engine discharge, drives the turbine rotation acting in turbine, turbine
Axis drives the impeller high speed rotation in coaxial connected compressor, and compressed air, is supplied to engine high pressure, height in eccentric fashion
Density air.So as to which we can spray more fuel oils to engine, reach and improve engine power, torque and reduction discharge etc.
Purpose.
In the traditional structure of the central rotor assembly of turbocharger, turbine is the most important thing in mechanism, without whirlpool
Wheel cannot drive compressor, that entire turbocharging is gone also just without any effect.Turbine is produced by engine in reject end
Then raw exhaust gas high speed rotation is sucked air, is transported to engine by turbine wheel shaft band dynamic pressure impeller again.In existing market
All it is the radial-flow turbine used, design and the specific speed run are high, cause impeller outlet discharge loss in mainstream booster
Huge, impeller internal flow condition is bad so that turbine performance drastically deteriorates.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of efficient combined flow turbine axis groups of operation simple in structure
Part.
In order to solve the above technical problems, combined flow turbine shaft assembly provided by the utility model, including the leaf being fixedly linked
Wheel and turbine wheel shaft, the impeller include the blade of the impeller disk and multiple same structures, the center of the impeller disk side and the turbine
Axis is fixedly linked, and blade is placed in the opposite side of the impeller disk, and each blade includes vertical section and inverted sections, and vertical section is perpendicular to the impeller disk
End face setting and the bottom end of vertical section be connected with the impeller disk, the outer side edges of vertical section are along the edge of impeller disk oblique upper outward
Setting is stretched out, the included angle A between the vertical section outer side edges and impeller disk axial direction is 35 ° so that the outer side edges of blade vertical section are inclined
Tiltedly setting.
Further, the impeller disk is set in truncated cone-shaped, and the turbine wheel shaft and the center of the small head end side of the impeller disk are fixed
It is connected, the blade is placed in the stub end side of the impeller disk.
Further, the junction of the turbine wheel shaft and impeller disk setting taper platform so that be between turbine wheel shaft and the impeller disk
Arc-shaped transition is oriented to conducive to fluid.
The technique effect of utility model：The combined flow turbine shaft assembly of the utility model, relative to the prior art, blade hangs down
Along the edge of the impeller disk, setting is stretched out in oblique upper to straight section outward, and the maximum outside diameter of the blade assembly of blade composition is more than the impeller disk
Diameter, the outer side edges of blade vertical section are no longer normal to the impeller disk and axially set so that gas is vertical with blade in the impeller disk
The flow direction of section junction changes, and compared to the arrangement of radial-flow turbine component, has guide functions with axial oblique, improves
Turbine efficiency；The impeller disk is set in truncated cone-shaped, while in the small head end setting taper platform of the impeller disk so that gas flows through taper
Equally there is guiding role when platform, the impeller disk.
Description of the drawings
The utility model is described in further detail with reference to the accompanying drawings of the specification：
Fig. 1 is the dimensional structure diagram of the combined flow turbine shaft assembly of the utility model；
Fig. 2 is the front view of the combined flow turbine shaft assembly of the utility model；
Fig. 3 is the side view of the combined flow turbine shaft assembly of the utility model.
In figure：Turbine wheel shaft 1, taper platform 11, the impeller disk 2, blade 3, inverted sections 31, vertical section 32, outer side edges 33.
Specific embodiment
Embodiment 1 as shown in Figure 1 to Figure 3, the combined flow turbine shaft assembly of the present embodiment, including the impeller being fixedly linked
With turbine wheel shaft 1, which includes the blade 3 of the impeller disk 2 and 11 same structures, and the impeller disk 2 is set in truncated cone-shaped, turbine wheel shaft 1
It is fixedly linked with the center of 2 small head end side of the impeller disk, the junction setting taper platform 11 of turbine wheel shaft 1 and the impeller disk 2 so that whirlpool
Arc-shaped transition between wheel shaft 1 and the impeller disk 2, each blade 3 are placed in the stub end side of the impeller disk 2；Each blade 3 includes one and casts
Make molding vertical section 32 and inverted sections 31, vertical section 32 set perpendicular to the end face of the impeller disk 2 and the bottom end of vertical section 32 with
The impeller disk 2 is connected, and inverted sections 31 are turned down along the top of vertical section 32 to same direction；The outer side edges 33 of vertical section 32 are along the impeller disk
The oblique upper stretching outward of 2 edge is set, and the included angle A between 2 axial direction of the vertical section outer side edges 33 and the impeller disk is 35 °, is made
The outer side edges 33 for obtaining blade vertical section 32 are obliquely installed.
Obviously, above-described embodiment is only intended to clearly illustrate the utility model example, and is not to this reality
With the restriction of novel embodiment.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.And these
Belong to the spiritual changes and variations that derived from of the utility model still in the scope of protection of the utility model
Among.
Claims (3)
1. a kind of combined flow turbine shaft assembly, which is characterized in that including：The impeller and turbine wheel shaft being fixedly linked, the impeller include
The blade of the impeller disk and multiple same structures, the center of the impeller disk side are fixedly linked with the turbine wheel shaft, and blade is placed in leaf
The opposite side of wheel disc, each blade include vertical section and inverted sections, and vertical section is set perpendicular to the end face of the impeller disk and vertical section
Bottom end is connected with the impeller disk, and the outer side edges of vertical section are set along the oblique upper stretching outward of the edge of the impeller disk, outside the vertical section
Included angle A between side and impeller disk axial direction is 35 ° so that the outer side edges of blade vertical section are obliquely installed.
2. combined flow turbine shaft assembly according to claim 1, which is characterized in that the impeller disk is set in truncated cone-shaped,
The turbine wheel shaft and the center of the small head end side of the impeller disk are fixedly linked, and the blade is placed in the stub end one of the impeller disk
Side.
3. combined flow turbine shaft assembly according to claim 1 or 2, which is characterized in that the turbine wheel shaft and the impeller disk
Junction sets taper platform so that arc-shaped transition between turbine wheel shaft and the impeller disk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721660298.4U CN207499906U (en) | 2017-12-01 | 2017-12-01 | A kind of combined flow turbine shaft assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721660298.4U CN207499906U (en) | 2017-12-01 | 2017-12-01 | A kind of combined flow turbine shaft assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207499906U true CN207499906U (en) | 2018-06-15 |
Family
ID=62508632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721660298.4U Expired - Fee Related CN207499906U (en) | 2017-12-01 | 2017-12-01 | A kind of combined flow turbine shaft assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207499906U (en) |
-
2017
- 2017-12-01 CN CN201721660298.4U patent/CN207499906U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180615 Termination date: 20201201 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |