WO2011136701A1 - Two flow passage valve - Google Patents
Two flow passage valve Download PDFInfo
- Publication number
- WO2011136701A1 WO2011136701A1 PCT/SE2010/000113 SE2010000113W WO2011136701A1 WO 2011136701 A1 WO2011136701 A1 WO 2011136701A1 SE 2010000113 W SE2010000113 W SE 2010000113W WO 2011136701 A1 WO2011136701 A1 WO 2011136701A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- flow
- valve
- rotating part
- valve device
- passage
- Prior art date
Links
Classifications
-
- 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
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/04—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves
- F16K11/052—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves with pivoted closure members, e.g. butterfly valves
- F16K11/0525—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves with pivoted closure members, e.g. butterfly valves the closure members being pivoted around an essentially central axis
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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
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
- F02M26/23—Layout, e.g. schematics
- F02M26/25—Layout, e.g. schematics with coolers having bypasses
- F02M26/26—Layout, e.g. schematics with coolers having bypasses characterised by details of the bypass valve
-
- 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
-
- 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
- F16K1/221—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 specially adapted operating means therefor
-
- 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
- F16K1/223—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 with a plurality of valve members
Abstract
The invention relates to a valve device (100) for regulating a first flow of fluid in a first passage (120) and a second flow of a fluid in a second passage (130), said valve device (100) comprising a single shaft (105), a first valve (144) comprising a first rotating part (102) and a first fixed part (140), a second valve (155) comprising a second rotating part (104) and a second fixed part (150), said first and second rotating parts (102, 104) are attached to said shaft (105), characterized in that, said first rotating part (102) is rotatable between a first and second position for regulating said first flow of fluid between a first and second value while said second valve (155) is closed for said second flow of fluid.
Description
D E S C R I P T I O N Two flow passage valve
TECHNICAL FIELD
The invention relates to a two flow passage valve according to the preamble of the independent claim.
BACKGROUND OF THE INVENTION
Present regulatory conditions in the automotive market have led to an increasing demand to improve fuel economy and reduce emissions in present vehicles.
These regulatory conditions must be balanced with the demands of a consumer for high performance and quick response for a vehicle.
In order to control NOx emissions from a diesel powered internal combustion engine, techniques such as exhaust gas recirculation and NOx catalysts provided in an exhaust gas after treatment system may be used.
The exhaust gas after treatment system usually is efficient within a predetermined temperature range. In an EGR flow there is usually provided an EGR cooler for cooling the recirculated exhaust gases. At certain times, for example during engine start up or low load, it is preferable to stop the exhaust gases from being cooled. This is done in order to speed up the heating of the exhaust gas after treatment system to come within said predetermined temperature range and thereby start to reduce NOx emissions quicker. It is known to bypass said EGR cooler with a valve arrangement having main flow and a bypass flow. In the main flow said EGR cooler is provided and in said bypass flow said EGR cooler is bypassed. For different reasons there is a need to direct the flow of the EGR gases independently of each other, i.e., regulating the main flow independently of the bypass flow. This has been solved according to the state of the art by relatively complicated valve arrangements which design adds cost and is relatively space consuming.
SUMMARY OF THE INVENTION
It is an object of the invention to provide a two flow passage valve which is smaller and less complicated than known two flow passage valves.
The objects are achieved by the features of the independent claims. The other claims and the description disclose advantageous embodiments of the invention. In a first aspect of the invention it is provided a valve device for regulating a first flow of fluid in a first passage and a second flow of a fluid in a second passage, said valve device comprising a single shaft, a first valve comprising a first rotating part and a first fixed part, a second valve comprising a second rotating part and a second fixed part. Said first and second rotating parts are attached to said shaft. Said first rotating part is rotatable between a first and second position for regulating said first flow of fluid between a first and second value while said second valve is closed for said second flow of fluid.
An advantage of the present example embodiment of the invention is that the main flow and bypass flow may be regulated with a single actuator.
Another advantage is that the main flow or bypass flow can be regulated between fully open and fully closed while the bypass flow or main flow respectively is maintained closed.
BRIEF DESCRIPTION OF THE DRAWINGS
The present invention together with the above-mentioned and other objects and advantages may best be understood from the following detailed description of the embodiment(s), but not restricted to the embodiments, wherein is shown schematically:
Fig. 1 illustrates a cross sectional view along A-A in figure 3 of a two flow passage valve according to an example embodiment of the present invention.
Fig. 2 illustrates a first side view of a two flow passage valve according to an example embodiment of the present invention. Fig. 3 illustrates a second side view of a two flow passage valve according to an example embodiment of the present invention.
DETAILED DESCRIPTION OF EXAMPLE EMBODIMENTS OF THE INVENTION
In the drawings, equal or similar elements are referred to by equal reference numerals. The drawings are merely schematic representations, not intended to portray specific parameters of the invention. Moreover, the drawings are intended to depict only typical embodiments of the invention and therefore should not be considered as limiting the scope of the invention.
Fig. 1 depicts schematically a valve device 100 for regulating a first flow of fluid in a first passage 120 and a second flow of a fluid in a second passage 130. Said valve device 100 comprising a single shaft 105, a first valve 144 comprising a first rotating part 102 and a first fixed part 140, a second valve 155 comprising a second rotating part 104 and a second fixed part 150, said first and second rotating parts 102, 104 are attached to said shaft 105. Said first rotating part 102 is rotatable between a first and second position for regulating said first flow of fluid between a first and second value while said second valve 155 is closed for said second flow of fluid.
In figure 1 the first and second passages 120, 130 merge upstream said first and second valves 144, 155 into a main passage 110. The valve device 100 may be provided in an exhaust system connectable to an internal combustion engine for regulating exhaust gas recirculation (EGR) flow. The main passage 110 may be the connecting pipe between the exhaust side and the intake side of the internal combustion engine for directing part of the exhaust gases from the internal combustion engine back to the intake system of the same
internal combustion engine. An EGR circuit may comprise said connecting pipe between said exhaust side and intake side of the internal combustion engine, said valve device 100 and at least one EGR cooler. In order to control the temperature of the exhaust gases, said EGR cooler may be provided in one of said first and second passages 120, 130. In figure 1 the first passage 120 has been illustrated to have a smaller diameter than the second passage 130. By providing an EGR cooler in the second passage 130 a flow (main flow) of fluid in said second passage will be somewhat restricted due to said EGR cooler. In order to have essentially equal flow of exhaust gases in the second passage with said EGR cooler and a first passage without said EGR cooler, said first passage 120 is made with a smaller diameter for compensating the absence of an EGR cooler in said first passage 120. The first passage 120 can be seen as a bypass flow for the EGR cooler provided in the second passage 130. The first and second passages 120, 130 may merge downstream said first and second valves 102, 104 and said EGR cooler. In another example embodiment said first and second passages 120, 130 will end up on the intake manifold as two separate connections.
By provision of the valve device 100 according to figure 1, said second rotating part 104 is adapted to be regulated between a first and second position for regulating said second flow of fluid between a first and second value while said first valve is closed for said first flow of fluid. In the example of EGR this means that the first passage 120 (bypass flow) is closed during the regulation of flow in the second passage 130 (main flow) which may contain one or more EGR coolers. This may be performed by rotating said single shaft 105. An actuator, for example an electric motor, may be attached to said single shaft, which in turn may be operated by an engine control unit.
By provision of the valve device 100 according to figure 1 , said first rotating part 102 is adapted to be regulated between a first and second position for regulating said first flow of fluid between a first and second value while said second valve 155 is closed for said second flow of fluid. In the example of EGR, this means that the second passage 130 (main flow) is closed during the regulation of flow of EGR in the first passage 120 (bypass flow). In figure 1 said second passage 130 may be connected upstream an EGR cooler. Said first passage 120 may in that case
be used to bypass the EGR cooler. The flow of EGR gases in this embodiment goes in the direction from the left to the right in figure 1 , i.e., the valve 155 is located upstream said EGR cooler. This means that the rotating part 104 is arranged upstream the EGR cooler.
The flow direction of EGR gases may also flow from the right to the left in figure 1. In this case the EGR cooler is located upstream the valve device 100, i.e., said EGR cooler is arranged to the right of the valve 100 in figure 1. This means that the rotating part 104 is arranged downstream the EGR cooler. The first passage 120 is arranged to bypass the EGR cooler.
Fig. 2 illustrates a cross sectional side view the valve device 100 as shown in figure 1. The first and second rotating parts 102, 104, which are provided in the first and second fixed parts 140, 150, are forming the first and second valves 144 and 155 respectively. The fixed part 140, 150 is forming a valve seat for the rotating part 102, 104. A complete edge of the rotating part 102, 104 may be in close contact with the fixed part 140, 150 for achieving a tight valve 144, 155 when in closed position. In figure 1-3, the rotating part 102, 104 has a shape of a circular flap. The fixed part 140, 150 is formed like a sphere with two opposite positioned opened parts. The size and shape of the fixed part is adapted to the size and shape of the rotating part. When part of the edge of the rotating part 102, 104 is positioned in the open part of the fixed part 140, 150, said valve 144, 155 is in an open position. Other shapes of the rotating part than circular may be used, for instance elliptical. According to what is disclosed above, said fixed part is adapted to the size and shape of the rotating part.
Imagine that the rotating part in figure 2 is rotating in a clockwise direction. If the valve is positioned as in figure 2, both first passage 120 and second passage 130 are closed. By starting to rotate the rotating parts 102, 104, by rotating the single shaft 105, in a clockwise direction, said first passage will remain closed to start with and said second passage will start to open. In figure 2 said second rotating part 104 is positioned 90 degrees ahead of said first rotating part 102 if said first and second parts 102, 104 is rotated in a clockwise direction. The open parts of the spherical shaped fixed parts 140, 150 are designed so that both valves can
simultaneously be in a closed position, a possibility to regulate any one of the valves between 0-100% open while the other one is closed. However, the open parts of the spherical shaped fixed parts 140, 150 are designed so that said first and second valves cannot be opened simultaneously. In figure 1-3, said open parts of said spherical shaped fixed part 140, 150 have the same diameter as the first and second passage 120, 130 respectively.
In a first example embodiment said first value for said first flow is 0% and said second value for said first flow is 100%. In another example embodiment said first value for said second flow is 0% and said second value for said second flow is 100%. In still another example embodiment said first value for said first flow is between 0-100%. In yet another example embodiment said second value for said first flow is between 0-100%. In still another example embodiment said first value for said second flow is between 0-100%. In still another example embodiment said second value for said second flow is between 0-100%.
The second rotating part 104 may be rotatable in a closed position while said first rotating part 102 is rotatable between said first and second position. The first rotating part 102 may be rotatable in a closed position while said second rotating part 104 is rotatable between said first and second position.
The first and second rotating parts 102, 104 are illustrated in figures 1-3 as a butterfly flap, however, said first and/or second rotating part may also be formed as a part of a ball or sphere and thereby forming a ball valve 144, 155.
Fig. 3 illustrates a second side view of a two flow passage valve according to an example embodiment of the present invention. In figure 3 said first passage 120 is fully open and said second passage 130 is fully closed. The internal combustion engine may comprise said EGR circuit comprising said valve device 100, which internal combustion engine may be provided in a vehicle. Said vehicle may be a car, truck or bus.
A computer program may comprise program code means for performing at least the open loop experiment when said program is run on a computer.
A computer program product may comprise program code means stored on a computer readable medium for performing at least the open loop experiment when said program product is run on a computer.
The invention should not be deemed to be limited to the embodiments described above, but rather a number of further variants and modifications are conceivable within the scope of the following patent claims.
Claims
C L A I M S
A valve device for regulating a first flow of fluid in a first passage and a second flow of a fluid in a second passage, said valve device comprising a. a single shaft,
b. a first valve comprising a first rotating part and a first fixed part c. a second valve comprising a second rotating part and a second fixed part,
d. said first and second rotating parts are attached to said shaft,
characterized in that,
e. said first rotating part is rotatable between a first and second position for regulating said first flow of fluid between a first and second value while said second valve is closed for said second flow of fluid.
The valve device according to claim 1, wherein said second rotating part is adapted to be regulated between a first and second position for regulating said second flow of fluid between a first and second value while said first valve is closed for said first flow of fluid.
The valve device according to claim 1 or 2, wherein said first valve is adapted to close said first flow of fluid while said second valve means is adapted to close said second flow of fluid.
The valve device according to claim 1 , wherein said first value for said first flow is 0% and said second value for said first flow is 100%.
The valve device according to claim 2, wherein said first value for said second flow is 0% and said second value for said second flow is 100%.
The valve device according to claim 1 , wherein said first value for said first flow is between 0-100%.
7. The valve device according to claim 1 , wherein said second value for said first flow is between 0-100%.
8. The valve device according to claim 2, wherein said first value for said
second flow is between 0-100%.
9. The valve device according to claim 2, wherein said second value for said second flow is between 0-100%. 10. The valve according to claim 1 , wherein said second rotating part is
rotatable in a closed position while said first rotating part is rotatable between said first and second position.
11. The valve according to claim 2, wherein said first rotating part is rotatable in a closed position while said second rotating part is rotatable between said first and second position.
12. The valve according to any one of claims 1-3, wherein said first and/or
second rotating part together with said first and/or second fixed parts are forming a butterfly valve.
13. The valve according to any one of claims 1-3, wherein said first and/or
second rotating part together with said first and/or second fixed parts are forming a ball valve. .
14. The valve device according to any one of claim 1-5, wherein said first flow passage has a smaller cross sectional area than said second flow passage.
15. The valve device according to any one of claim 1-6, wherein said first and second flow passages merge upstream said first and second valves.
16. The valve device according to any one of claim 1-7, wherein said first and second flow passages merge downstream said first and second valves.
An internal combustion engine comprising an exhaust gas recirculation (EGR) circuit, characterized in that a valve device according to any one of claims 1-16 is provided in said EGR circuit.
A vehicle comprising an internal combustion engine according to claim 17
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/SE2010/000113 WO2011136701A1 (en) | 2010-04-30 | 2010-04-30 | Two flow passage valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/SE2010/000113 WO2011136701A1 (en) | 2010-04-30 | 2010-04-30 | Two flow passage valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2011136701A1 true WO2011136701A1 (en) | 2011-11-03 |
Family
ID=44861763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/SE2010/000113 WO2011136701A1 (en) | 2010-04-30 | 2010-04-30 | Two flow passage valve |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2011136701A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016107933A1 (en) | 2015-05-05 | 2016-11-10 | Borgwarner Ludwigsburg Gmbh | Valve for an exhaust line of an internal combustion engine and method for controlling two exhaust gas streams |
| CN109268150A (en) * | 2018-09-18 | 2019-01-25 | 潍柴动力股份有限公司 | A kind of engine intake and exhaust system and its control valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3635245A (en) * | 1969-10-06 | 1972-01-18 | John L Canfield | Air control device |
| EP0987427A1 (en) * | 1998-09-14 | 2000-03-22 | Modine Manufacturing Company | Device for recirculating an exhaust gas stream to the intake conduit of an engine |
| EP1273786A2 (en) * | 2001-07-07 | 2003-01-08 | Pierburg GmbH | Switching device for exhaust gas recirculation in an internal combustion engine |
| JP2007321708A (en) * | 2006-06-02 | 2007-12-13 | Toyota Motor Corp | Exhaust gas recirculation system |
| WO2009059999A1 (en) * | 2007-11-05 | 2009-05-14 | Dayco Ensa, S.L. | Valve arrangement |
| EP2211048A1 (en) * | 2009-01-23 | 2010-07-28 | Pierburg GmbH | Exhaust gas flap device and exhaust gas heat recovery system of a combustion engine |
-
2010
- 2010-04-30 WO PCT/SE2010/000113 patent/WO2011136701A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3635245A (en) * | 1969-10-06 | 1972-01-18 | John L Canfield | Air control device |
| EP0987427A1 (en) * | 1998-09-14 | 2000-03-22 | Modine Manufacturing Company | Device for recirculating an exhaust gas stream to the intake conduit of an engine |
| EP1273786A2 (en) * | 2001-07-07 | 2003-01-08 | Pierburg GmbH | Switching device for exhaust gas recirculation in an internal combustion engine |
| JP2007321708A (en) * | 2006-06-02 | 2007-12-13 | Toyota Motor Corp | Exhaust gas recirculation system |
| WO2009059999A1 (en) * | 2007-11-05 | 2009-05-14 | Dayco Ensa, S.L. | Valve arrangement |
| EP2211048A1 (en) * | 2009-01-23 | 2010-07-28 | Pierburg GmbH | Exhaust gas flap device and exhaust gas heat recovery system of a combustion engine |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016107933A1 (en) | 2015-05-05 | 2016-11-10 | Borgwarner Ludwigsburg Gmbh | Valve for an exhaust line of an internal combustion engine and method for controlling two exhaust gas streams |
| DE102016107933B4 (en) | 2015-05-05 | 2022-08-18 | Borgwarner Ludwigsburg Gmbh | Valve for an exhaust system of an internal combustion engine and method for controlling two exhaust gas flows |
| CN109268150A (en) * | 2018-09-18 | 2019-01-25 | 潍柴动力股份有限公司 | A kind of engine intake and exhaust system and its control valve |
| CN109268150B (en) * | 2018-09-18 | 2021-08-20 | 潍柴动力股份有限公司 | Engine air intake and exhaust system and control valve thereof |
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