EP2984376A1 - Fluid switching device for a valve having at least three ports - Google Patents
Fluid switching device for a valve having at least three portsInfo
- Publication number
- EP2984376A1 EP2984376A1 EP14710041.6A EP14710041A EP2984376A1 EP 2984376 A1 EP2984376 A1 EP 2984376A1 EP 14710041 A EP14710041 A EP 14710041A EP 2984376 A1 EP2984376 A1 EP 2984376A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- flap
- piece
- actuating member
- interface piece
- interface
- 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.)
- Withdrawn
Links
Classifications
-
- 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
- F02M26/52—Systems for actuating EGR valves
-
- 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
- F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
- F02B29/04—Cooling of air intake supply
- F02B29/0406—Layout of the intake air cooling or coolant circuit
- F02B29/0418—Layout of the intake air cooling or coolant circuit the intake air cooler having a bypass or multiple flow paths within the heat exchanger to vary the effective heat transfer surface
-
- 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
- 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
-
- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/52—Mechanical actuating means with crank, eccentric, or cam
- F16K31/528—Mechanical actuating means with crank, eccentric, or cam with pin and slot
- F16K31/5282—Mechanical actuating means with crank, eccentric, or cam with pin and slot comprising a pivoted disc or flap
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Definitions
- the invention relates to a device for switching a fluid for a three-way valve, in particular for an engine control valve.
- the invention applies in particular when the heat engine is used for the propulsion of a vehicle, for example a motor vehicle. It can be an engine whose fuel is gasoline or diesel.
- the valve can be integrated in the air circuit of the engine.
- thermal engine air circuit designates the circuit between the intake inlet and the exhaust outlet of the engine.
- the valve can be arranged in the intake circuit, the exhaust circuit, or a recirculation loop through which the exhaust gases fed back to the inlet (EGR in English) pass.
- the invention aims to meet this need.
- a device for switching a fluid for a valve having at least three channels comprising:
- a shutter pivotable between a first shutter position of a first track and a second shutter position of a second track
- an actuating member of the flap adapted to move the flap from one to the other of the closed positions
- the device comprising an interface piece capable of interacting with the actuating member, the device being configured in such a way that this interaction selectively allows the movement of the flap by the actuating member and selectively the holding in position of the shutter.
- the actuator can move the flap through a guide path in the interface piece.
- a displacement of the actuating member can thus be transmitted to the flap via the interface piece.
- This displacement of the actuating member may be caused by an external actuator, for example a pneumatic, hydraulic or electrical actuator.
- This external actuator can already have the function of moving a flap of another valve.
- this external actuator is dedicated to driving the actuating member.
- the shutter is in the sense of the present application a shutter, which means that the shutter will close one way to favor another gas flow path, and it is not a priori not intended to regulate a flow of gas in a lane.
- the shutter and the interface piece may be separate parts rigidly coupled together.
- the shutter and the interface piece are for example separated by a seal allowing the fluid, in particular the gas, in contact with which the flap is located can not reach the interface piece and the actuating member.
- two parts are rigidly coupled together when there is no degree of freedom between them.
- the actuating member and the interface piece may comprise complementary surfaces, so that the contact between these complementary surfaces maintains the position of the interface piece during a displacement of the actuating member.
- the actuating member may then form a stop at the surface cooperating with the interface piece to hold the latter in position.
- the actuating member above can thus play alone two functions to fully control the movement of the flap.
- the actuating member may allow the movement of the flap.
- the actuating member may, in cooperation with the interface piece, allow the flap to remain in position when the latter has reached a desired position, in particular a closed position.
- a displacement of the actuating member can selectively be transmitted to the flap to move the latter and selectively not be transmitted to the flap, so that the latter is held in position. It is thus not necessary to stop in a more or less violent manner the displacement of the actuating member once the flap in the desired position. The latter can continue to move without this pursuit has any impact on the position of the component.
- Said complementary surfaces are, for example, circular arcs of substantially the same radius.
- the guide path may be formed by a blind groove in the interface piece.
- the groove may extend in all or part along a rectilinear axis intersecting the axis of rotation of the flap.
- the complementary surface of a surface of the actuating member may be formed in the interface piece by two parts of the periphery of the interface piece, these two parts of the each circumference being arranged on one side of the groove.
- the distance between each of said periphery portions and the groove may increase as one moves in the groove toward the blind end.
- Each of said parts of the periphery may be an arc of substantially the same radius.
- the complementary surface of a surface of the actuating member may be formed in the interface piece by at least a portion of the periphery of the interface piece.
- the actuating member may comprise a rotatable piece, a holding piece of the interface piece and a guide piece of the interface piece, said holding piece and said guide piece being integral with the piece. mobile in rotation.
- the axis of rotation of the moving part may be parallel to that of the flap.
- the guide piece can rest in the groove when the flap is in an intermediate position in which the first and second lanes are open.
- the guide piece may exert a thrust on the interface piece to move the flap when said guide piece moves along the groove from the position corresponding to the intermediate position of the flap, due to a rotation of the piece mobile.
- the holding member may include a recess providing clearance for receiving a portion of the interface piece when the flap is in the intermediate position in which the first and second channels are open.
- the complementary surface of a surface of the interface piece may be formed in the actuating member by a portion of the outer periphery of the holding member.
- the moving part in rotation is a wheel
- the holding part is a fraction of a wheel coaxial with the moving part and having a radius smaller than that of the wheel forming the part mobile.
- the wheel forming the moving part is for example integrated with a gear coupled to an actuator.
- the guide piece may be a pin or a pin attached to the wheel forming the moving part or a ball bearing mounted on the pin.
- the guide piece may be angularly disposed in the space released by the recess in the retaining piece.
- the cooperation between said complementary surfaces can be done as soon as the guide piece comes out of the groove of the interface piece.
- the device may or may not include one or more springs involved in maintaining the flap in position.
- the invention further relates, in another of its aspects, an engine control valve comprising a switching device as defined above.
- the valve may include an input channel and two output channels, the flap being pivotable to move from a closed position of an output channel to a closed position of the other output channel.
- valve may comprise two input channels and one output channel, the flap being able to pivot to move from one shutter position of an input channel to a shutter position of the other entrance way.
- the shutter of the track by the shutter can be either complete and therefore be made with a total seal, or be partial by tolerating a residual leakage passage of fluid, especially gas
- the valve may for example be a valve disposed in an EGR loop.
- a valve above has the advantage among others to implement a flap switching device that is simple due in particular to the small number of parts involved and is therefore compact.
- it may have the advantage of having an actuating member, in particular a wheel forming a moving part, which can continue its movement after the flap has reached a closed position, allowing said actuating member to fill an additional hold function during this additional run.
- FIG. 1 is a schematic view of an engine control valve comprising a switching device according to the invention
- FIG. 2A is a schematic view of a device for actuating a valve according to the invention, the flap being in an intermediate open position of the two channels
- FIG. 2B is a schematic view of the actuating device of FIG. FIG. 2A, the shutter being in a closed position of a track
- FIG. 2C is a schematic view of the actuating device of FIG. 2A, the flap being in a closed position of the other path,
- valve 30 which is here an engine control valve in which can be integrated a switching device 1 according to the invention.
- the engine control valve 30 is an EGR valve placed in an EGR loop 31 of a heat engine.
- the EGR loop 31 comprises the valve 30, a cooler 32 of the EGR gas and a bypass channel 33 of said gases originating upstream of said cooler 32 and opening into the EGR loop 2 downstream of the cooler 32.
- the valve 30 comprises a shutter 10 plane and movable in rotation, between a first shutter position of the bypass channel 9 and a second shutter position of a passage 11 access to the cooler 8.
- the shutter 10 making it possible to close off the access passage 9 to the bypass channel 33 or the access passage 11 to the cooler 32, is rotated by means of a mechanism of the type "Maltese cross", the principle of which is based on a discontinuous rotation of a malt cross-shaped object by means of a continuous rotation of a driving piece interacting with said object.
- the object in the form of a Maltese cross is an interface piece 12, which has been secured to the flap 10.
- This interface piece 12 comprises two parallel arms 13 forming a groove 14 between them defining a guide path, as will be seen later, and two lateral protuberances 15, each of said protrusions 15 being placed on each side of the longitudinal axis of the groove 14
- the groove extends in this example along a rectilinear longitudinal axis X.
- each arm 13 and a protrusion 15 placed on the same side with respect to the longitudinal axis of the groove 14 are connected to each other by an arcuate surface.
- the interface piece 12 has a base 17 aligned on the longitudinal axis of the groove 14, the axis connecting the two protrusions 15 separating said base 17 and the two arms 13.
- each arm 13 has a end implanted in the base 17, and another end which is free.
- the flap 10 has an axis of rotation Y enabling it to move between the two closure positions of the two lanes 9, 11, the interface piece 12 being rigidly fixed at one end. the flap 10 by means of said base 17.
- the interface piece 12 is fixed to the flap 10 so that the base 17 of the interface piece 12 is traversed by the axis of rotation
- the rotation of the interface piece 10 simultaneously causes the flap 10 to rotate about its axis of rotation Y with the same angle.
- the switching device 1 comprises an actuating member 2 of the flap 10.
- This actuating member 2 comprises a piece 19 movable in rotation, here a wheel 19, and can be driven by a actuator not shown.
- the actuating member 2 further comprises a guide piece 20, here a lug attached to the wheel 19.
- the lug 20 is for example cylindrical and placed on the periphery and emerges from the plane of the wheel 19 in a perpendicular direction.
- the actuating member 2 further comprises a holding member 21 which is here a fraction of another wheel coaxial with the wheel 19, and integral therewith.
- This other wheel 21 is disposed in the central zone of the wheel 19.
- the other wheel 21 emerges from the plane of the wheel 19 in a perpendicular direction, and thus creates an extra thickness.
- the cross section of the other wheel 21, which is perpendicular to its axis of rotation, has a circular contour 7 over more than half of its circumference, and a recess 24 delimited by a curved section connecting the partial circular contour to close said section.
- This portion of the other wheel 21 thus forms a stop 7 helping to maintain the flap 10 in a closed position of the access passage 11 to the cooler 32 bearing against said surface 16 in an arc of the interface piece 12.
- the actuator can be activated to cause rotation of the wheel 19 in the opposite direction, as indicated by the arrow 24 placed under said wheel 19, so as to bring the flap 10 into a position of shutting off the bypass channel 33 so that the gases pass through the access passage 11 to the cooler 32, as shown by the upper arrow 25 in the figure.
- the flap 10 then returns to the intermediate position of FIG. 2A to momentarily open simultaneously the bypass channel 33 and the access passage 11 to the cooler 32, before continuing its rotation to close the bypass channel 33.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Multiple-Way Valves (AREA)
- Mechanically-Actuated Valves (AREA)
- Lift Valve (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1352230A FR3003326B1 (en) | 2013-03-13 | 2013-03-13 | DEVICE FOR NEEDLEING A FLUID FOR A VALVE HAVING AT LEAST THREE WAYS |
PCT/FR2014/050429 WO2014140447A1 (en) | 2013-03-13 | 2014-02-27 | Fluid switching device for a valve having at least three ports |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2984376A1 true EP2984376A1 (en) | 2016-02-17 |
Family
ID=48570324
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14710041.6A Withdrawn EP2984376A1 (en) | 2013-03-13 | 2014-02-27 | Fluid switching device for a valve having at least three ports |
Country Status (4)
Country | Link |
---|---|
US (1) | US20160017846A1 (en) |
EP (1) | EP2984376A1 (en) |
FR (1) | FR3003326B1 (en) |
WO (1) | WO2014140447A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3022968B1 (en) * | 2014-06-30 | 2016-07-29 | Valeo Systemes De Controle Moteur | FLUID VALVE REGULATING ASSEMBLY |
DE102017208070B4 (en) * | 2017-05-12 | 2020-06-25 | Ford Global Technologies, Llc | Supercharged internal combustion engine with low-pressure exhaust gas recirculation and swiveling flap |
CN108457775B (en) * | 2018-03-29 | 2020-06-02 | 潍柴动力股份有限公司 | Check valve for engine exhaust gas recirculation system |
TWI836756B (en) * | 2021-11-29 | 2024-03-21 | 德商聖高拜塑膠製品L+S股份有限公司 | Valve and method of making and using the same |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3207111A (en) * | 1964-01-31 | 1965-09-21 | James V Giliberty | Valve operating means |
US3777591A (en) * | 1971-03-15 | 1973-12-11 | Lowell Corp | Rotation limiting device |
DE2941543C2 (en) * | 1979-10-13 | 1983-05-05 | Paul Isphording Metallwerke GmbH & Co KG, 5952 Attendorn | Device for controlling the gas supply |
FR2475677A1 (en) * | 1980-02-13 | 1981-08-14 | Cit Alcatel | THREE-WAY VALVE |
FR2609518B1 (en) * | 1987-01-12 | 1990-12-28 | Abx Sa | SINGLE-MEMBRANE SWITCHING MICROELECTROVALVE |
EP0525521A1 (en) * | 1991-08-01 | 1993-02-03 | Mitsubishi Jukogyo Kabushiki Kaisha | Gas separator system |
JPH07332119A (en) * | 1994-06-10 | 1995-12-22 | Nippondenso Co Ltd | Variable cylinder device |
US6209404B1 (en) * | 1999-10-25 | 2001-04-03 | Trw Inc. | Intermittent geneva actuated mechanism |
DE10148931A1 (en) * | 2001-10-04 | 2003-04-24 | Eugster Frismag Ag Romanshorn | Espresso machine with a rotary, ceramic disc valve as a selective water / steam distributor |
US6791289B1 (en) * | 2003-04-09 | 2004-09-14 | Spx Corporation | Intermittent driving mechanism |
DE102008057128A1 (en) * | 2008-11-13 | 2010-05-20 | Gustav Wahler Gmbh U. Co. Kg | Valve device for controlling an exhaust gas flow recirculated and supplied by an internal combustion engine |
JP4793454B2 (en) * | 2009-02-06 | 2011-10-12 | 株式会社デンソー | High pressure EGR device |
-
2013
- 2013-03-13 FR FR1352230A patent/FR3003326B1/en active Active
-
2014
- 2014-02-27 WO PCT/FR2014/050429 patent/WO2014140447A1/en active Application Filing
- 2014-02-27 EP EP14710041.6A patent/EP2984376A1/en not_active Withdrawn
- 2014-02-27 US US14/773,517 patent/US20160017846A1/en not_active Abandoned
Non-Patent Citations (2)
Title |
---|
None * |
See also references of WO2014140447A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2014140447A1 (en) | 2014-09-18 |
FR3003326A1 (en) | 2014-09-19 |
FR3003326B1 (en) | 2015-08-21 |
US20160017846A1 (en) | 2016-01-21 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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17P | Request for examination filed |
Effective date: 20150803 |
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AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
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AX | Request for extension of the european patent |
Extension state: BA ME |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: HODEBOURG, GREGORY Inventor name: MARTIN, NICOLAS |
|
DAX | Request for extension of the european patent (deleted) | ||
17Q | First examination report despatched |
Effective date: 20161205 |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 20180222 |