KR101666079B1 - Waste gate valve - Google Patents

Waste gate valve Download PDF

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Publication number
KR101666079B1
KR101666079B1 KR1020150165497A KR20150165497A KR101666079B1 KR 101666079 B1 KR101666079 B1 KR 101666079B1 KR 1020150165497 A KR1020150165497 A KR 1020150165497A KR 20150165497 A KR20150165497 A KR 20150165497A KR 101666079 B1 KR101666079 B1 KR 101666079B1
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KR
South Korea
Prior art keywords
rotation guide
rotation
guide body
arm
delete delete
Prior art date
Application number
KR1020150165497A
Other languages
Korean (ko)
Inventor
김태한
Original Assignee
삼위정공 주식회사
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Priority to KR1020150165497A priority Critical patent/KR101666079B1/en
Application granted granted Critical
Publication of KR101666079B1 publication Critical patent/KR101666079B1/en

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    • 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
    • F02B37/18—Control of the pumps by bypassing exhaust from the inlet to the outlet of turbine or to the atmosphere
    • F02B37/183—Arrangements of bypass valves or actuators therefor
    • 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
    • F02B37/18—Control of the pumps by bypassing exhaust from the inlet to the outlet of turbine or to the atmosphere
    • F02B37/183—Arrangements of bypass valves or actuators therefor
    • F02B37/186—Arrangements of actuators or linkage for bypass valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/20—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation arranged externally of valve member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/36—Valve members
    • Y02T10/144—

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Supercharger (AREA)

Abstract

The present invention provides a wastegate valve for a turbocharger system. The wastegate valve for a turbocharger system includes a poppet portion having a rotation guide portion, a arm portion connected to be rotated by the rotation guide portion, And a washer portion disposed at an upper end of the poppet portion and guiding rotation of the arm portion.

Description

Wasted gate valve for turbocharger system {WASTE GATE VALVE}

The present invention relates to a wastegate valve for a turbocharger system, and more particularly, to a wastegate valve for a turbocharger system capable of reducing noise due to vibration during valve operation.

A small exhaust turbo supercharger usually includes a waste gate valve for opening and closing an exhaust bypass passage through the exhaust passage to the exhaust turbine driven by the exhaust gas and bypassing the exhaust turbine to the exhaust gas outlet passage .

When the amount of exhaust gas of the engine is excessive, the waste gate valve is opened so that a part of the exhaust gas is controlled to be relieved to the exhaust gas outlet passage by bypassing the exhaust turbine to maintain the exhaust gas flow rate at a proper flow rate Thereby increasing the operating point of the flow rate of the exhaust gas of the low load, thereby achieving high output of the engine.

FIGS. 1A and 1B are views showing an example of a structure around a waste gate valve in an exhaust turbine of a conventional exhaust turbo supercharger.

Reference numeral 2000 denotes an exhaust turbine, constructed as follows.

Reference numeral 1 denotes a turbine casing, and a turbine (the content is not shown) 2 is provided therein.

Reference numeral 1000 denotes a wastegate valve for exhausting the exhaust gas supplied from the engine (not shown) to the turbine 2 via the exhaust gas passage 11 from the exhaust gas passage 11 upstream of the turbine 2 , The turbine (2) is bypassed and flows into the exhaust bypass passage (5) to communicate with the exhaust outlet passage (18s). Reference numeral 4 denotes an exhaust gas inlet flange from the engine.

The valve body 01 of the wastegate valve 1000 reciprocates to open and close the valve seat portion 12 of the exhaust bypass passage 5 and to discharge the exhaust gas from the exhaust gas passage 11, The exhaust gas (bypass) of the bypass passage 5 flows into the exhaust outlet passage 18s as shown by an arrow.

An end portion 8b of the L-shaped support shaft 8 is fixed to the valve body 01 of the wastegate valve 1000 by a rivet 8c.

The rotating portion of the support shaft 8 is rotatably fitted to the bush 7 fixed to the turbine casing 1. [

Reference numeral 9 denotes an arm fixed to the shaft end of the support shaft 8 by welding 9a or the like. One end of the arm 9 is provided with a connecting portion 13 to an actuator (not shown).

Therefore, the support shaft 8 is rotated around the shaft center 8a by the reciprocating movement of the connection portion 13 by the actuator, and the rotation about the shaft center 8a of the support shaft 8 The valve body 01 is opened and closed with the valve body 01 attached to and detached from the valve seat portion 12. [

In such a structure, conventionally, it is prescribed to maintain a constant interval in order to observe the adhesion of the bypass hole and the valve, and there is a problem that noise may be generated due to the above-mentioned interval.

Variable flow waste gate (Patent Application No. 10-2011-7008736)

SUMMARY OF THE INVENTION An object of the present invention is to provide a wastegate valve for a turbocharger system capable of reducing noise due to vibration during valve operation.

In a preferred embodiment, the present invention provides a wastegate valve for a turbocharger system.

The wastegate valve for a turbocharger system includes a poppet portion having a rotation guide portion, a arm portion connected to be rotated by the rotation guide portion, And a washer portion disposed at an upper end of the poppet portion and guiding rotation of the arm portion.

It is preferable that the rotation guide includes a rotation guide body formed in a spherical shape.

It is preferable that the arm portion is formed with a rotation guide hole that is curvedly contacted with the rotation guide body to guide rotation.

Preferably, the arm portion includes an arm body, and a rotating body extending from the arm body, wherein the rotation guide hole is formed.

The rotation guide hole may be formed to surround the spherical rotation guide body.

The inner circumference of the lower end of the rotation guide hole may be formed to be spaced apart from the circumference of the rotation guide body.

The thickness of the rotation guide body is preferably smaller than the thickness of the arm body.

Preferably, the rotation guide portion is formed with a mounting portion on which the washer portion is provided.

It is preferable that the washer portion is fitted and fixed to the mounting portion and is curvedly contacted with the outer periphery of the rotation guide body.

It is preferable that the washer portion has the same curvature as that of the rotating body and contacts the outer surface of the rotating body.

In the present invention, by forming the shape of the arm end of the valve and the rotation guide portion of the poppet portion in a spherical shape, it is possible to secure the gap between the top and bottom faces to be kept to a minimum and, at the same time, In addition, it has an effect of improving the adhesion with the exhaust bypass passage.

FIGS. 1A and 1B are views showing an example of a structure around a waste gate valve in an exhaust turbine of a conventional exhaust turbo supercharger.
2 is a sectional view showing an example of a wastegate valve for a turbocharger system according to the present invention.
3 is a cross-sectional view showing the state in which the waste gate valve of FIG. 2 is opened.
4 is a cross-sectional view showing another example of a wastegate valve for a turbocharger system according to the present invention.
FIG. 5 is a cross-sectional view showing the state in which the waste gate valve of FIG. 4 is opened.

Hereinafter, the construction and operation of a wastegate valve for a turbocharger system will be described with reference to the accompanying drawings.

FIG. 2 is a cross-sectional view showing an example of a wastegate valve for a turbocharger system according to the present invention, and FIG. 3 is a sectional view showing a state in which the wastegate valve of FIG. 2 is opened.

First, a configuration of an example of a wastegate valve for a turbocharger system according to the present invention will be described.

2 to 3, a wastegate valve for a turbocharger system according to the present invention includes a poppet portion 100, an arm portion 200, and a washer portion 300.

The fodder part (100)

The poppet portion (100) has a rotation guide portion.

The rotation guide unit includes a rotation guide body 110 formed in a spherical shape to form a certain curvature.

An open / close plate 120 for opening / closing the flow path is formed at a lower end of the rotation guide body 110.

An installation part 130 having a protruding shape is formed at an upper end of the rotation guide body 110 so that a washer 300 will be described later.

Particularly, the rotation guide body 100 has a predetermined curvature and may have a convex curvature between the mounting part 130 and the upper end of the opening / closing plate 120.

In the arm portion 200,

The arm portion 200 according to the present invention is connected to the poppet portion 100.

The arm part 200 includes a female body 210 and a rotating body 220 extending from the female body 210 and having the rotation guide hole 221 formed therein.

A rotating end 211 is formed at an end of the arm body 210.

The rotation body 220 has a rotation guide hole 221 formed in a curved contact with the rotation guide body 110 to guide the rotation.

The rotation guide groove 221 may be formed as a groove having a shape corresponding to the outer surface of the rotation guide body as a whole.

That is, the inner circumference of the lower end of the rotation guide hole 221 may be formed so as to form a predetermined gap from the circumference of the rotation guide body 110.

Therefore, the rotation guide hole 221 is fitted in the rotation guide body 110, and the lower end of the rotation guide hole 221 is caught by the lower end of the rotation guide body 110 and can not be detached outwardly.

That is, the rotation guide hole 221 may be formed to surround the spherical rotation guide body 110.

The thickness of the rotation guide body 110 may be smaller than the thickness of the arm body 210.

A neck portion is formed between the rotation guide body 110 and the mounting portion 130. The rotation guide body 110 is provided with an installation portion to which the washer portion 300 is inserted.

In this case, the rotation body 220 of the arm part 200 is formed with auxiliary guide holes 222 through which the neck body 111 is pierced upward from the rotation guide hole 221.

In the washer portion 300,

The washer portion 300 according to the present invention is disposed at the upper end of the poppet portion 100 and serves to guide the rotation of the arm portion 200.

As described above, at the upper end of the rotation guide body 110, an installation part 130 where the washer part 300 is installed is formed.

The washer portion 300 is fitted and fixed to the mounting portion 130 and curvedly contacts the outer periphery of the rotation guide body 110.

In the washer 300, a fitting hole 310 to be fitted in the fitting portion 130 is formed.

The lower end of the washer portion 300 is in contact with the upper end surface of the rotating body 220 of the arm portion 200.

Here, the upper end of the rotating body 220 forms a convex curvature upward.

Accordingly, the lower end of the washer 300 may also be formed in a convex shape so as to be in close contact with the upper end of the rotating body 220 and be in close contact therewith.

That is, the washer 300 may have the same curvature as that of the rotating body 220 and may contact the outer surface of the rotating body 220.

The reference numeral 'B' in FIGS. 3 and 5 is an exhaust bypass passage.

4 is a cross-sectional view showing another example of a wastegate valve for a turbocharger system of the present invention, and Fig. 5 is a sectional view showing the wastegate valve of Fig. 4 opened.

4 and 5, another example of the wastegate valve of the present invention will be described. Description of the same components as those of the above-described waste gate valve will be omitted.

The fodder part (100)

The poppet portion 100 'has a rotation guide portion.

The rotation guide part includes a rotation guide body 110 'formed in a spherical shape to form a certain curvature.

The rotation guide body 110 'is formed in a shape in which an upper end is cut.

At the lower end of the rotation guide body 110 ', an open / close plate 120 for opening and closing the flow passage is formed.

In particular, the rotation guide body 110 'has a predetermined curvature and may have a convex curvature between the mounting portion 130 and the upper end of the opening / closing plate 120.

In the arm portion 200,

The arm portion according to the present invention is connected to the fop port part 100 '.

The arm part 200 comprises a female body 210 and a rotating body 220 'extending from the female body 210 and forming the rotation guide hole 221'.

The upper end of the rotating body 220 'is substantially co-linear with the incised portion of the rotation guide body 110'.

A rotating end 211 is formed at an end of the arm body 210.

The rotation body 220 'is formed with a rotation guide hole 221' that is curvedly contacted with the rotation guide body 110 'to guide rotation.

The rotation guide hole 221 'may be formed as a groove having a shape corresponding to the outer surface of the rotation guide body as a whole.

That is, the inner circumference of the lower end of the rotation guide hole 221 'may be formed so as to form a predetermined gap from the circumference of the rotation guide body 110'.

Accordingly, the rotation guide hole 221 'is fitted in the rotation guide body 110', and the lower end of the rotation guide hole 221 'is caught by the lower end of the rotation guide body 110' and is not separated outwardly.

That is, the rotation guide hole 221 'may be formed to surround the spherical rotation guide body 110'.

According to the structure and the operation according to the present invention, in the present invention, the rotating body of the arm portion is curved so as to be in contact with the rotating body of the arm portion, so that the structural shape can be assembled and the interval of the end play can be minimized.

Further, by forming a curved shape as in the present invention, it is possible to minimize the gap between the upper and lower sides, and the side action capable of contacting the poppet portion on the contact surface of the assembly portion can be flexibly operated to secure the adhesion.

Accordingly, the present invention is effective in that the shape of the end portion of the valve and the rotation guide portion of the poppet portion are formed in a spherical shape so that the gap between the top and bottom faces is kept to be minimum, There is an advantage to be able to.

Further, the present invention has the effect of improving the adhesion with the exhaust bypass passage.

As described above, the wastegate valve for a turbocharger system according to the present invention has been described in detail. However, it is apparent that various modifications are possible within the scope of the present invention.

Therefore, the scope of the present invention should not be limited to the above-described embodiments, but should be determined by the scope of the appended claims and equivalents thereof.

It is to be understood that the foregoing embodiments are illustrative and not restrictive in all respects and that the scope of the present invention is indicated by the appended claims rather than the foregoing description, It is intended that all changes and modifications derived from the equivalent concept be included within the scope of the present invention.

100:
110, 110 ': rotation guide body
200:
300: washer portion

Claims (8)

A poppet portion having a rotation guide portion;
A arm portion connected to be rotated by the rotation guide portion;
And a washer portion disposed at an upper end of the poppet portion and guiding rotation of the arm portion,
Wherein the rotation guide portion includes a rotation guide body formed in a spherical shape,
Wherein the arm portion has a rotation guide hole formed in a curved contact with the rotation guide body to guide rotation of the rotation guide body,
Wherein the arm portion includes a female body and a rotating body extending from the female body and formed with the rotation guide hole,
The rotation guide hole is formed to surround the spherical rotation guide body,
Wherein the rotation guide hole is fitted to the rotation guide body and the lower end of the rotation guide hole is engaged with the lower end of the rotation guide body and is not separated outwardly,
The inner circumference of the lower end of the rotation guide hole gradually forms a gap extending downward from the lower end of the rotation guide body,
The thickness of the rotation guide body is formed to be thinner than the thickness of the arm body,
A plate-shaped opening / closing plate extending to both sides of the lower end of the rotation guide body for opening / closing the flow passage is formed at a lower end of the rotation guide body,
A groove having a concave curvature is formed between a lower end of the rotation guide body and an upper end of the opening / closing plate,
Wherein an installation portion having the washer portion is formed at an upper end of the rotation guide portion, a neck body is formed between the rotation guide body and the installation portion,
The rotation body of the arm portion is formed with auxiliary guide holes that are pierced upward from the rotation guide holes and through which the neck body passes,
Wherein the rotation guide body has a curvature having a convex shape between the mounting portion and the upper end of the opening and closing plate,
The washer portion
The wastegate valve is fitted and fixed to the mounting portion and is curvedly contacted with the outer periphery of the rotating guide body and is brought into contact with the outer surface of the rotating body with the same curvature as that of the rotating body. delete delete delete delete delete delete delete
KR1020150165497A 2015-11-25 2015-11-25 Waste gate valve KR101666079B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109944890A (en) * 2017-12-21 2019-06-28 东亚工业株式会社 Spring washer for turbocharger
DE102018205815A1 (en) * 2018-04-17 2019-10-17 BMTS Technology GmbH & Co. KG Valve

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0719065A (en) * 1993-07-01 1995-01-20 Mitsubishi Heavy Ind Ltd Waist gate valve for exhaust turbocharger
KR20110060934A (en) 2008-10-01 2011-06-08 보르그워너 인코퍼레이티드 Variable flow wastegate
JP2013519813A (en) * 2010-02-11 2013-05-30 アイ・エイチ・アイ チャージング システムズ インターナショナル ゲーエムベーハー Actuation mechanism for valve mechanisms such as waste gate valves of exhaust gas turbochargers

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0719065A (en) * 1993-07-01 1995-01-20 Mitsubishi Heavy Ind Ltd Waist gate valve for exhaust turbocharger
KR20110060934A (en) 2008-10-01 2011-06-08 보르그워너 인코퍼레이티드 Variable flow wastegate
JP2013519813A (en) * 2010-02-11 2013-05-30 アイ・エイチ・アイ チャージング システムズ インターナショナル ゲーエムベーハー Actuation mechanism for valve mechanisms such as waste gate valves of exhaust gas turbochargers

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109944890A (en) * 2017-12-21 2019-06-28 东亚工业株式会社 Spring washer for turbocharger
KR20190075279A (en) * 2017-12-21 2019-07-01 동아공업 주식회사 spring washer of turbo charger
KR102066563B1 (en) * 2017-12-21 2020-01-15 동아공업 주식회사 spring washer of turbo charger
DE102018205815A1 (en) * 2018-04-17 2019-10-17 BMTS Technology GmbH & Co. KG Valve

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