KR101669000B1 - Structure of vane to reduce side clearance loss and improving stability of flow, vane cartridge and turbocharger - Google Patents

Structure of vane to reduce side clearance loss and improving stability of flow, vane cartridge and turbocharger Download PDF

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Publication number
KR101669000B1
KR101669000B1 KR1020150092871A KR20150092871A KR101669000B1 KR 101669000 B1 KR101669000 B1 KR 101669000B1 KR 1020150092871 A KR1020150092871 A KR 1020150092871A KR 20150092871 A KR20150092871 A KR 20150092871A KR 101669000 B1 KR101669000 B1 KR 101669000B1
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KR
South Korea
Prior art keywords
vane
cartridge device
turbocharger
side portion
turbine wheel
Prior art date
Application number
KR1020150092871A
Other languages
Korean (ko)
Inventor
이건창
Original Assignee
현대위아 주식회사
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Publication date
Application filed by 현대위아 주식회사 filed Critical 현대위아 주식회사
Priority to KR1020150092871A priority Critical patent/KR101669000B1/en
Application granted granted Critical
Publication of KR101669000B1 publication Critical patent/KR101669000B1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F02B37/12—Control of the pumps
    • F02B37/24—Control of the pumps by using pumps or turbines with adjustable guide vanes
    • 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
    • F01D17/00—Regulating or controlling by varying flow
    • F01D17/10—Final actuators
    • F01D17/12—Final actuators arranged in stator parts
    • F01D17/14—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits
    • F01D17/16—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of nozzle vanes
    • F01D17/165—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of nozzle vanes for radial flow, i.e. the vanes turning around axes which are essentially parallel to the rotor centre line
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas- turbine plants for special use
    • F02C6/04—Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output
    • F02C6/10—Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output supplying working fluid to a user, e.g. a chemical process, which returns working fluid to a turbine of the plant
    • F02C6/12—Turbochargers, i.e. plants for augmenting mechanical power output of internal-combustion piston engines by increase of charge pressure
    • 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
    • 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
    • F05D2240/00—Components
    • F05D2240/10—Stators
    • F05D2240/12—Fluid guiding means, e.g. vanes
    • Y02T10/144—

Abstract

The present invention relates to a vane, a vane cartridge device, and a turbocharger, and more particularly, to a vane, a vane cartridge device, and a turbocharger capable of reducing loss of side clearance loss and mixing loss, To a vane, a vane cartridge device and a turbocharger having a structure capable of improving flow stability.

Description

Technical Field The present invention relates to a vane, vane cartridge, and turbocharger having a structure for reducing lateral gap loss and improving flow stability,

The present invention relates to a vane, a vane cartridge device, and a turbocharger, and more particularly, to a vane, a vane cartridge device, and a turbocharger capable of reducing loss of side clearance loss and mixing loss, To a vane, a vane cartridge device and a turbocharger having a structure capable of improving flow stability.

The turbocharger is an engine supercharger driven by exhaust gas, which is a combination of a supercharger and a turbine that drives it.

In addition, the turbocharger functions to recover the energy of the exhaust gas by changing the rotational force of the turbine and to increase the charging efficiency of the mixed gas by the compressor provided on the intake side, and to improve the output and the fuel cost.

1 is a view showing a turbine housing side structure 10 of a general turbocharger.

Referring to FIG. 1, a conventional turbocharger housing structure 10 includes a turbine housing 11, a turbine wheel 12 accommodated to rotate inside the turbine housing 11, And a vane cartridge device 13 for transmitting the rotation to the turbine wheel 12 to cause the turbine wheel 12 to rotate.

Although not shown, the turbocharger includes a compressor housing connected to the turbine housing 11, a compressor housing accommodated in the compressor housing, connected to the turbine wheel 12 to rotate, And a compressor wheel.

2, a conventional vane cartridge apparatus 13 includes a vane base ring 13a serving as a hub, a vane base ring 13a serving as a hub, A plurality of vane coverings 13b connected to the vane base ring 13a and the vane coverings 13b at predetermined distances from the vane base ring 13a and serving as a shroud, And includes a radially positioned vane 13c.

2 may be a variable geometry type cartridge device capable of adjusting the amount of exhaust gas supplied to the turbine wheel 12, and the vane 13c may be a variable geometry type, Can be rotated while the position is fixed on the vane base ring 13a, and the opening amount of the exhaust gas to be inputted can be adjusted.

Further, the vane 13 rotates to the control ring 13d, and the control ring 13d rotates to an actuator (not shown).

FIG. 3 is a view for explaining the vane opening amount of a conventional turbo charger. FIG. 3 (a) is a view showing a state in which the vane 13 is open, (b) is a view showing a state of a collar FIG.

The open state is a state for lowering the speed of the exhaust gas f by increasing the amount of opening of the vane 13c in the high flow rate backlash and preventing the force transmission from being too large to the turbine wheel 12, Thereby preventing a boost from occurring.

Further, the closed state increases the force transmission to the turbine wheel 12 in a state of accelerating the flow rate of the exhaust gas f by reducing the amount of opening of the vane 13c in the low flow rate region, Pressure is also increased.

Since the vane cartridge 13 operates at a high temperature of at least 800 degrees Celsius, thermal expansion must be taken into consideration. As shown in FIG. 2, the vane cartridge 13 may be disposed between the vane 13c and the vane covering 13b, A predetermined clearance (about 0.1 mm) exists between the vane base ring 13a and the vane base ring 13a, and this gap is referred to as a side clearance c.

4 (a) is a sectional view showing a direction (t) perpendicular to the direction in which the exhaust gas (f) flows into the vane 13c, and FIG. 4 (B) shows the flow of the exhaust gas (f) along the side clearance.

4A, the vane 13c includes a hub side portion H directed toward the vane base ring 13a, a shroud side portion S facing the vane covering 13b, And a mid portion (M) connecting the portion (M) and the shroud side portion (S).

The hub side portion (H), the shroud side portion (S), and the mid portion (M) have the same width.

That is, the vertical cross section of the conventional vane 13c has a rectangular shape, and a fluid flow is generated in which the exhaust gas f flowing out flows toward the side gap c.

FIG. 5 is a graph showing fluid flow when 20% is opened to explain a fluid flow of a conventional vane, and FIG. 6 is a graph showing the fluid flow of FIG. 5 as Entropy.

5 and 6, a leakage flow occurs in the upper surface 13cc of the shroud side portion S of the vane 13c, so that a side gap loss exists. At the outlet of the vane 13c, It can be seen that mixing flow occurs when wake flow occurs.

Further, it can be seen that the entropy at the outlet of the vane 13c is high and the fluid flow is not uniform, which causes the performance degradation of the turbine wheel 12 to occur.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a vane capable of reducing side clearance loss and mixing loss of an exhaust gas and improving flow stability of the exhaust gas. , A vane cartridge device, and a turbocharger.

The objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood by those skilled in the art from the following description.

In order to accomplish the above object, the present invention provides a vane cartridge comprising a plurality of vane base rings, which are hubs of vane cartridge devices, and vane coverings, which are shrouds, Wherein the vane has a mid portion between the hub side portion, the shroud side portion, the hub side portion, and the shroud side portion integrally, and the vane is integrally formed in a direction perpendicular to the input direction of the input fluid And the width of the mid portion is smaller than that of the hub side portion and the shroud side portion when the vertical section is viewed.

In a preferred embodiment, both side edges of the vertical section are configured to be concave curves inward of the mid section.

The present invention also relates to a vane base ring; A vane cover ring connected to the vane base ring at a predetermined distance; And a plurality of vanes spaced apart from each other by a predetermined distance in a radial direction between the vane base ring and the vane cover ring.

In a preferred embodiment, each of the vanes is provided to be rotatable on the vane base ring, and the vane cartridge device further comprises a control ring capable of rotating the vanes on the vane base ring at a predetermined angle, Each vane is driven by a variable geometry type.

The present invention also relates to the vane cartridge device; A turbine wheel provided inside the vane cartridge device; A turbine housing for receiving the vane cartridge device and the turbine wheel therein and for introducing exhaust gas of the engine into the vane cartridge device vane to rotate the turbine wheel; A compressor wheel rotated by the turbine wheel; And a compressor housing accommodating the compressor wheel therein, and compressing the intake air by the compressor wheel and supplying the compressed air to the engine. [5] The turbocharger according to claim 1,

The present invention further provides a vehicle having the turbocharger.

The present invention has the following excellent effects.

According to the vane, vane cartridge device, and turbocharger of the present invention, the exhaust gas flowing into the vane is collected at the shroud side portion and the hub side portion into the mid portion and does not leak into the side clearance, so that side clearance loss and mixing loss mixing loss can be reduced and the flow stability of the exhaust gas can be improved. Therefore, the efficiency of the turbine wheel can be improved.

1 is a view showing a turbine housing side structure of a general turbocharger,
2 is a view showing a vane cartridge apparatus of a conventional turbocharger,
3 is a view for explaining a vane opening amount of a conventional turbocharger,
4 is a view for explaining a vane of a conventional turbocharger,
5 is a view for explaining fluid flow of a conventional vane,
FIG. 6 is a diagram showing the fluid flow of FIG. 5 in entropy,
Figure 7 illustrates a vane according to one embodiment of the present invention,
8 is a front and rear view of a vane according to one embodiment of the present invention,
Figure 9 is a plan view and side view of a vane according to one embodiment of the present invention.

Although the terms used in the present invention have been selected as general terms that are widely used at present, there are some terms selected arbitrarily by the applicant in a specific case. In this case, the meaning described or used in the detailed description part of the invention The meaning must be grasped.

Hereinafter, the technical structure of the present invention will be described in detail with reference to preferred embodiments shown in the accompanying drawings.

However, the present invention is not limited to the embodiments described herein but may be embodied in other forms. Like reference numerals designate like elements throughout the specification.

FIG. 7 is a view showing a vane according to an embodiment of the present invention. FIG. 8 (a) is a front view of a vane according to an embodiment of the present invention, FIG. (a) is a view showing a plane of a vane according to an embodiment of the present invention, and (b) is a view showing a side view.

7 to 9, the vane 100 according to an embodiment of the present invention is an apparatus for controlling the direction and the flow rate of the input fluid f.

In addition, the vane 100 of the present invention may be provided as one vane cartridge apparatus together with a vane base ring as a hub, and a vane cover ring which is separated from the vane base ring by a predetermined distance.

In addition, the vane cartridge apparatus is provided with a plurality of vanes 100, and the vanes 100 are positioned radially with respect to the center axis of the vane base ring and the vane covering.

In addition, each of the vanes 100 may be a variable geometry type that rotates at a predetermined angle on the vane base ring and can change the direction and flow rate of the fluid f.

In this case, the vane cartridge device may function as a variable geometry vane cartridge device, and the variable geometry vane cartridge device may further include a control ring to enable the vanes 100 to rotate on the vane base ring .

In addition, the vane cartridge device may be provided as a turbocharger with a turbine housing, a turbine wheel, a compressor housing and a compressor wheel, and when the vane cartridge device is a variable geometry vane cartridge device, the turbocharger may include a variable geometry turbocharger It is provided as a charger.

Also, the turbocharger may be provided on a vehicle.

The vane cartridge apparatus and the turbocharger of the present invention are configured such that the components other than the vane 100 are substantially the same as those of the conventional vane cartridge apparatus 13 and the conventional turbocharger 10, ) Will not be described in detail.

The vane 100 is integrally formed with the head 140, the body 150 and the tail 160 from the direction in which the fluid f flows, and the body 140 150), and has a streamlined shape gradually tapered from the body part (150) to the tail part (160).

9 (a), the vane 100 has the largest width of the body portion 150 when viewed from the top, and the width of the head portion 140, the tail portion 160, Width is small in order.

Referring to FIG. 9 (b), the vane 100 has a shape of a square shape in which the length of the side is longer than the length of the vertical side when viewed from the side.

The vane 100 may be divided into three portions, that is, an upper portion, a middle portion, and a lower portion in a direction perpendicular to the flow of the fluid f. The upper portion may include a shroud side portion 120, And the lower portion is defined as the hub side portion 110 as the vane base ring side portion and the middle portion is defined as the mid portion 130 between the hub side portion 110 and the shroud side portion 110, .

That is, when the same direction as the flow of the fluid f is referred to as a horizontal direction, the vane 100 is configured such that the head 140, the body 150, and the tail 160 are integrally formed And the shroud side portion 120, the mid portion 130, and the hub side portion 110 are integrally formed in this order in the vertical direction.

10 (a) shows a vertical section t1 in which the vane 100 is cut in the vertical direction, and FIG. 10 (b) shows a flow of the fluid f.

The width w1 of the meander 130 is greater than the width w3 of the shroud side 120 when the vane 100 has a vertical section t1. And the width (w2) of the hub side portion (110).

In addition, both side edges (v) of the vertical section (t1) are formed into a curved shape in which the mid portion 130 is recessed inward.

That is, the side surface of the vane 100 has a shape in which the intermediate portion is depressed inward along the flow direction of the fluid f.

10 (b), the inflow fluid f is collected at the mid portion 130 at the shroud side portion 120 and the hub side portion 110, Since the fluid f is not leaked, the side gap loss is reduced.

In addition, leakage flow does not occur in the side clearance, so that no mixing loss occurs at the outlet of the vane 13c, that is, at the tail portion 160. [

Therefore, according to the vane 100 of the present invention, side clearance loss and mixing loss do not occur, and thus the flow stability of the fluid f can be improved, thereby preventing performance deterioration of the turbine wheel .

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation in the present invention. Various changes and modifications will be possible.

100: Vane 110: hub side
120: shroud side part 130:
140: head part 150: body part
160: tail

Claims (8)

delete A plurality of vanes between a vane base ring which is a hub of a vane cartridge device and a vane covering which is a shroud and which is a vane for changing a flow rate and a flow rate of an input fluid,
Wherein the vane has a mid portion integrally formed between the hub side portion, the shroud side portion, the hub side portion, and the shroud side portion,
When viewed in a vertical section perpendicular to the input direction of the input fluid, the width of the mid portion is smaller than the width of the hub side portion and the shroud side portion,
And both side edges of the vertical cross-section are respectively curved inwardly of the mid portion.
Vane base ring;
A vane cover ring connected to the vane base ring at a predetermined distance; And
And a plurality of vanes spaced from each other by a predetermined distance in a radial direction between the vane base ring and the vane covering.
The method of claim 3,
Each of the vanes being rotatable on the vane base ring,
Wherein the vane cartridge device further comprises a control ring capable of rotating each vane on the vane base ring at a predetermined angle such that each vane is driven in a variable geometry type.
A vane cartridge device according to claim 3;
A turbine wheel provided inside the vane cartridge device;
A turbine housing for receiving the vane cartridge device and the turbine wheel therein and for introducing exhaust gas of the engine into the vane cartridge device vane to rotate the turbine wheel;
A compressor wheel rotated by the turbine wheel; And
And a compressor housing for accommodating the compressor wheel therein and compressing the intake air by the compressor wheel and supplying the compressed air to the engine.
A vane cartridge apparatus according to claim 4;
A turbine wheel provided inside the vane cartridge device;
A turbine housing for receiving the vane cartridge device and the turbine wheel therein and for introducing exhaust gas of the engine into the vane cartridge device vane to rotate the turbine wheel;
A compressor wheel rotated by the turbine wheel; And
And a compressor housing that houses the compressor wheel therein and compresses the intake air by the compressor wheel and supplies the compressed air to the engine.
A vehicle having the turbocharger of claim 5.
A vehicle having the turbocharger of claim 6.

KR1020150092871A 2015-06-30 2015-06-30 Structure of vane to reduce side clearance loss and improving stability of flow, vane cartridge and turbocharger KR101669000B1 (en)

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KR1020150092871A KR101669000B1 (en) 2015-06-30 2015-06-30 Structure of vane to reduce side clearance loss and improving stability of flow, vane cartridge and turbocharger

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KR1020150092871A KR101669000B1 (en) 2015-06-30 2015-06-30 Structure of vane to reduce side clearance loss and improving stability of flow, vane cartridge and turbocharger

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200031379A (en) * 2018-09-14 2020-03-24 현대위아 주식회사 Cartridge of vane

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005351241A (en) * 2004-06-14 2005-12-22 Toyota Motor Corp Vane for variable nozzle provided with bulge turning fluid aside
JP2009215990A (en) * 2008-03-11 2009-09-24 Ihi Corp Vane shape of variable nozzle and variable capacity supercharger

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005351241A (en) * 2004-06-14 2005-12-22 Toyota Motor Corp Vane for variable nozzle provided with bulge turning fluid aside
JP2009215990A (en) * 2008-03-11 2009-09-24 Ihi Corp Vane shape of variable nozzle and variable capacity supercharger

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200031379A (en) * 2018-09-14 2020-03-24 현대위아 주식회사 Cartridge of vane
KR102116904B1 (en) * 2018-09-14 2020-06-02 현대위아 주식회사 Cartridge of vane

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