CN210123036U - Butterfly valve for an exhaust device of a motor vehicle - Google Patents
Butterfly valve for an exhaust device of a motor vehicle Download PDFInfo
- Publication number
- CN210123036U CN210123036U CN201920789700.1U CN201920789700U CN210123036U CN 210123036 U CN210123036 U CN 210123036U CN 201920789700 U CN201920789700 U CN 201920789700U CN 210123036 U CN210123036 U CN 210123036U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- butterfly valve
- exhaust gas
- cylindrical sleeve
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/04—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning exhaust conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
- F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
- F02D9/1035—Details of the valve housing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
- F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
- F02D9/1035—Details of the valve housing
- F02D9/106—Sealing of the valve shaft in the housing, e.g. details of the bearings
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- 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
- F16K1/22—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 crossing the valve member, e.g. butterfly valves
- F16K1/224—Details of bearings for the axis of rotation
- F16K1/225—Details of bearings for the axis of rotation the axis of rotation having only one bearing
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- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0209—Check valves or pivoted valves
- F16K27/0218—Butterfly valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/65—Constructional details of EGR valves
- F02M26/70—Flap valves; Rotary valves; Sliding valves; Resilient valves
Abstract
Butterfly valve for an exhaust device of a motor vehicle. The butterfly valve (10) has a valve body (12) defining an exhaust gas flow channel (14) extending in a longitudinal direction (X), and a valve flap (16) movable about a rotation axis (R) perpendicular to the longitudinal direction (X) between a closed position closing the exhaust gas flow channel (14) and a release position releasing the exhaust gas flow channel (14). The valve body (12) has two identical body parts (12A, 12B) which are arranged symmetrically to one another with respect to the axis of rotation (R), so that the utility model provides a butterfly valve which is simple and economical to manufacture.
Description
Technical Field
The present invention relates to a butterfly valve for an exhaust device, in particular for a motor vehicle.
Background
Such butterfly valves are for example commonly used in exhaust gas recirculation or regulating devices.
Many types of butterfly valves are known in the art. However, these butterfly valves are generally complex and/or expensive to manufacture.
SUMMERY OF THE UTILITY MODEL
The present invention aims in particular to remedy this drawback by providing a butterfly valve that is simple and economical to manufacture.
To this end, the invention relates in particular to a butterfly valve for an exhaust device, in particular of a motor vehicle, having a valve body which defines an exhaust gas flow channel which extends in a longitudinal direction, and a valve flap which is movable about a rotational axis perpendicular to the longitudinal direction between a closed position closing the exhaust gas flow channel and a release position releasing the exhaust gas flow channel, characterized in that the valve body has two identical valve body parts which are arranged symmetrically to one another with respect to the rotational axis.
The same two body parts are manufactured in the same way with the same tools, so that the production of the body of the butterfly valve is greatly simplified.
The butterfly valve according to the invention may also have one or more of the following features, taken alone or according to all technically conceivable combinations:
-the two valve body parts are arranged symmetrically with respect to a symmetry plane having the axis of rotation.
The butterfly valve also has a stem extending along the rotation axis and carrying the flap, the stem being intended to be connected to a flap actuator, and at least one guide guiding the rotation of the stem, for example a sliding bearing or a rolling bearing.
-a guide is carried by the two body portions.
Each valve body part has at least one fixing arm, in particular for fixing to the flap actuator.
-each valve body part is formed by cutting and/or punching a plate.
The valve body has a cylindrical sleeve which at least partially delimits the exhaust gas through-flow channel, the valve flap being arranged in the cylindrical sleeve, the two valve body parts being fitted on the cylindrical sleeve.
The guide is carried by the cylindrical sleeve.
The utility model discloses still relate to a manufacturing method for making aforementioned butterfly valve, include:
-preparing two identical valve body parts,
-assembling a valve body having said two body parts arranged symmetrically to each other with respect to an axis.
Advantageously, the assembly of the two valve body parts comprises a laser penetration welding process.
Drawings
The invention will be better understood from a reading of the following description, given by way of example only and made with reference to the accompanying drawings, in which:
fig. 1 is a perspective view of a butterfly valve according to a first embodiment of the invention;
FIG. 2 is a cross-sectional view of the butterfly valve of FIG. 1;
FIG. 3 is an exploded perspective view of the butterfly valve of FIG. 1;
fig. 4 and 5 are cross-sectional views of butterfly valves according to second and third embodiments of the present invention, respectively.
Detailed Description
The following embodiments are given as non-limiting examples only. Other embodiments are contemplated within the scope of the invention.
Fig. 1 to 3 show a butterfly valve 10 for installation in an exhaust system, in particular of a motor vehicle.
The butterfly valve 10 has a valve body 12 defining an exhaust gas flow channel 14 extending in a longitudinal direction X (shown in fig. 2).
The butterfly valve 10 further has a flap 16 which is movable about a rotation axis R perpendicular to the longitudinal direction X between a closed position closing the exhaust gas flow channel 14 and a release position releasing the exhaust gas flow channel 14, and which can be located in any position between the closed position and the release position.
The flap 16 serves to control the gas flow through the exhaust gas passage 14 depending on its position.
The valve flap 16 is formed, for example, from sheet metal by cutting and/or stamping.
The flap 16 is carried by a stem 18 which extends along the axis of rotation R. In particular, the distal end of the stem 18 carries the flap 16, while the proximal end of the stem is kinematically connected to an actuator (not shown) of a conventional type. The valve flap 16 is attached to the valve stem 18, for example by laser welding.
The valve stem 18 is guided in rotation by a guide 20 carried by the valve body 12. The guide 20 has, for example, a sliding bearing or a rolling bearing.
In particular, the guide 20 is housed in a housing 22 defined by the valve body 12.
First and second sealing gaskets 23a, 23b are also housed in the bowl 22 around the stem 18. In particular, the first sealing gasket 23a has an overall shape of revolution around the stem 18 with a partially truncated-cone-shaped inner wall, and the second sealing gasket 23b has an overall shape of revolution around the stem 18 with a partially spherical outer wall intended to cooperate with the partially truncated-cone-shaped inner wall.
The second sealing gasket 23b is fixed to the stem 18 or overmoulded on the stem 18, while the first sealing gasket 23a is free, but it is in sealing contact with the guide 20 and the second sealing gasket 23 b. Thus, the sealing gaskets 23a and 23b prevent any leakage of the exhaust gas to the outside.
The bowl 22 is closed from above by a cover 24. Advantageously, the cover 24 has a flange that covers the bowl 22 to isolate the bowl 22 from the outside, preventing any contaminants (dust, etc.) from entering the bowl 22.
The valve stem 18 passes through the cap 24 or, preferably, the valve stem 18 is made in two parts, a proximal part and a distal part, each part being fixed on both sides of the cap 24. It is contemplated that any other connecting member may be employed between the proximal and distal portions of valve stem 18, particularly one that thermally isolates the proximal and distal portions from one another.
The valve body 12 also has a fixing arm 26 for fixing to a structural part, for example, to the actuator. In the example described, the valve body 12 has four arms 26, but in a variant, the valve body may have only two arms.
According to the invention, the valve body 12 has two identical valve body parts 12A, 12B, which are arranged symmetrically to one another with respect to the axis of rotation R.
Thus, both valve body portions 12A, 12B can be made in the same manner with the same tool. For example, the two valve body portions 12A, 12B are plates that are cut and/or stamped.
The two valve body parts 12A, 12B are assembled together, for example, by welding to each other. To this end, each valve body part 12A, 12B has a receiving face for receiving a receiving face of the other valve body part.
According to the described example, the two valve body parts 12A, 12B are arranged symmetrically with respect to a symmetry plane having the rotation axis R.
The two valve body parts 12A, 12B are identical and have the same number of securing arms 26, for example two securing arms 26 each.
In addition, each valve body portion 12A, 12B defines half of the bowl 22. The guide 20 is then carried by the two valve body parts 12A, 12B.
In the example depicted, the valve body 12 optionally has a cylindrical sleeve 28, which at least partially delimits the exhaust gas through-flow channel 14, in which the valve flap 16 is arranged. The two valve body parts 12A, 12B are then assembled on the cylindrical sleeve 28, for example welded on the cylindrical sleeve 28. In this case, the two body parts 12A, 12B can also be welded to one another, or in a variant, only to the cylindrical sleeve 28.
It should be noted that in the case of a butterfly valve 10 having such a cylindrical sleeve 28, the guide 20 partially bears against this cylindrical sleeve 28.
The cylindrical sleeve 28 advantageously has a projection 30 which forms an end-of-travel stop for the valve flap 16 in the closed position closing off the exhaust gas flow. These projections 30 also restrict the passage of exhaust gas between the valve flap 16 and the cylindrical sleeve 28 in the closed position.
Such a projection 30 may be disposed on the valve body portions 12A, 12B in the case of a valve 10 without a cylindrical sleeve 28, or in a variation, the valve 10 may lack such a projection 30.
Advantageously, the cylindrical sleeve 28 is made of a metallic material, for example hydroformed.
A valve 10 according to a second embodiment of the invention is shown in fig. 4. In fig. 4, components similar to those of the previous figures are designated with the same reference numerals.
According to this second embodiment, the bowl 22 is defined by a box 32 disposed between the two valve body portions 12A, 12B.
The guide 20 and the first and second sealing gaskets 23a, 23b are housed in the box 32.
The tank 32 is also fixed to the cylindrical sleeve 28, for example by welding.
A valve 10 according to a third embodiment of the invention is shown in fig. 5. In fig. 5, components similar to those of the previous figures are designated with the same reference numerals.
According to this third embodiment, the two valve body parts 12A, 12B are not arranged in contact with each other, but both are attached to both sides of the cylindrical sleeve 28 in the longitudinal direction.
The valve 10 then has a tank 32 similar to that of the second embodiment.
It should be noted that the butterfly valve 10 may be manufactured during the manufacturing method that will now be described.
The manufacturing method includes preparing the same two valve bodies 12A, 12B. For example, the two valve body portions 12A, 12B are made of a metal plate, by cutting and press-molding.
First, according to the embodiment considered, the guide 20 is arranged on the cylindrical sleeve 28, with or without the box 32.
The manufacturing method then comprises assembling a valve body 12 having two body parts 12A, 12B, which are arranged symmetrically to each other with respect to the axis of rotation R.
When the valve 10 has a cylindrical sleeve 28, for example with a press configured for this purpose, the cylindrical sleeve and the two valve body parts 12A, 12B are press-fitted together until the two valve body parts 12A, 12B contact each other.
Preferably, assembly of the two valve body portions 12A, 12B includes a laser penetration welding process. In particular, the two valve body parts 12A, 12B are welded to the cylindrical sleeve 28 and/or to each other.
Welding the two valve body parts 12A, 12B to the cylindrical sleeve 28 ensures, in particular, the sealing between the valve body parts 12A, 12B and the cylindrical sleeve 28, preventing leakage of the gas flowing through the exhaust gas flow channel 14.
It is to be noted that any type of assembly method is conceivable, such as welding, in particular electric welding, or brazing.
The guide 20 is held under pressure between the two valve body parts 12A, 12B and is therefore held in contact with the cylindrical sleeve 28.
The method of manufacture also includes fitting the valve stem 18, in one or two parts, with the cap 24 and the first and second sealing gaskets 23a, 23 b.
Then, the stem 18 provided with the cover 24 is passed through the guide 20, and the stem 18 provided with the cover 24 and the first and second sealing washers 23a and 23b are assembled with the valve body 12.
The valve flap 16 is then attached to the valve stem 18, for example by welding.
It should be noted that the present invention is not limited to the foregoing embodiments, but may have a variety of different modifications.
Claims (9)
1. Butterfly valve (10) for an exhaust device of a motor vehicle, having a valve body (12) defining an exhaust gas flow channel (14) extending in a longitudinal direction (X), and a valve flap (16) movable about a rotation axis (R) perpendicular to the longitudinal direction (X) between a closed position closing the exhaust gas flow channel (14) and a release position releasing the exhaust gas flow channel (14), characterized in that the valve body (12) has two identical body portions (12A, 12B) arranged symmetrically to each other with respect to the rotation axis (R).
2. Butterfly valve (10) according to claim 1, characterized in that said two body portions (12A, 12B) are arranged symmetrically with respect to a symmetry plane having said rotation axis (R).
3. The butterfly valve (10) of claim 1 or 2, further comprising:
-a valve stem (18) extending along the axis of rotation (R) and carrying the flap (16), the valve stem (18) being intended to be connected to a flap actuator, and
-at least one guide (20) guiding the rotation of the valve stem (18).
4. Butterfly valve (10) according to claim 3, characterized in that a guide (20) is carried by said two body portions (12A, 12B).
5. Butterfly valve (10) according to claim 1 or 2, characterized in that each valve body part (12A, 12B) has at least one fixing arm (26) for fixing to the flap actuator.
6. Butterfly valve (10) according to claim 1 or 2, characterized in that each valve body part (12A, 12B) is formed by cutting and/or punching a plate.
7. Butterfly valve (10) according to claim 1 or 2, characterised in that the valve body (12) has a cylindrical sleeve (28) which at least partially delimits the exhaust gas flow channel, in which the flap (16) is arranged, the two valve body parts (12A, 12B) being fitted on the cylindrical sleeve (28).
8. Butterfly valve (10) according to claim 3, characterised in that the valve body (12) has a cylindrical sleeve (28) which at least partially delimits the exhaust gas flow channel, in which the flap (16) is arranged, the two valve body parts (12A, 12B) being fitted on the cylindrical sleeve (28); and, the guide (20) is carried by a cylindrical sleeve (28).
9. Butterfly valve (10) according to claim 3, characterized in that the guide is a sliding bearing or a rolling bearing.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1854568A FR3081935B1 (en) | 2018-05-29 | 2018-05-29 | BUTTERFLY VALVE FOR AN EXHAUST DEVICE, IN PARTICULAR FOR A MOTOR VEHICLE |
| FR1854568 | 2018-05-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210123036U true CN210123036U (en) | 2020-03-03 |
Family
ID=62816826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920789700.1U Active CN210123036U (en) | 2018-05-29 | 2019-05-29 | Butterfly valve for an exhaust device of a motor vehicle |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN210123036U (en) |
| DE (1) | DE102019114306A1 (en) |
| FR (1) | FR3081935B1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3080427B1 (en) * | 2018-04-24 | 2020-04-03 | Faurecia Systemes D'echappement | VALVE FOR AN EXHAUST LINE |
| FR3080428B1 (en) * | 2018-04-24 | 2020-04-03 | Faurecia Systemes D'echappement | PILOT VALVE FOR EXHAUST LINE AND MANUFACTURING METHOD THEREOF |
| FR3125574A1 (en) * | 2021-07-21 | 2023-01-27 | Faurecia Systemes D'echappement | Exhaust valve |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3529493B2 (en) * | 1995-05-24 | 2004-05-24 | 本田技研工業株式会社 | Manufacturing method of butterfly valve |
| IL136370A0 (en) * | 2000-05-25 | 2001-06-14 | Twitoplast Ltd | Split damper housing |
| KR20100058962A (en) * | 2008-11-25 | 2010-06-04 | 현대자동차주식회사 | Exhaust gas control device of vehicle |
| DE102011107088C5 (en) * | 2011-07-11 | 2019-10-02 | Friedrich Boysen Gmbh & Co. Kg | Valve device |
| DE102011107024B4 (en) * | 2011-07-14 | 2019-02-07 | Friedrich Boysen Gmbh & Co. Kg | CONTROL DEVICE and method of making the same |
-
2018
- 2018-05-29 FR FR1854568A patent/FR3081935B1/en not_active Expired - Fee Related
-
2019
- 2019-05-28 DE DE102019114306.3A patent/DE102019114306A1/en not_active Withdrawn
- 2019-05-29 CN CN201920789700.1U patent/CN210123036U/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| FR3081935B1 (en) | 2022-08-12 |
| DE102019114306A1 (en) | 2019-12-05 |
| FR3081935A1 (en) | 2019-12-06 |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |