EP1934459A1 - Dispositif de repartition des gaz recircules, et refroidisseur de gaz recircules comportant un tel dispositif - Google Patents
Dispositif de repartition des gaz recircules, et refroidisseur de gaz recircules comportant un tel dispositifInfo
- Publication number
- EP1934459A1 EP1934459A1 EP06831260A EP06831260A EP1934459A1 EP 1934459 A1 EP1934459 A1 EP 1934459A1 EP 06831260 A EP06831260 A EP 06831260A EP 06831260 A EP06831260 A EP 06831260A EP 1934459 A1 EP1934459 A1 EP 1934459A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gas
- cylindrical part
- inlet
- lights
- outlet
- 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.)
- Granted
Links
- 239000007789 gas Substances 0.000 title claims description 67
- 238000001816 cooling Methods 0.000 title description 3
- 230000004087 circulation Effects 0.000 claims abstract description 14
- 238000004140 cleaning Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001537 neural effect Effects 0.000 description 1
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
- F02M26/65—Constructional details of EGR valves
- F02M26/71—Multi-way valves
-
- 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
- F02M26/13—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
- F02M26/29—Constructional details of the coolers, e.g. pipes, plates, ribs, insulation or materials
- F02M26/30—Connections of coolers to other devices, e.g. to valves, heaters, compressors or filters; Coolers characterised by their location on the engine
-
- 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
- F02M26/51—EGR valves combined with other devices, e.g. with intake valves or compressors
-
- 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
Definitions
- the present invention relates to exhaust gas recirculation devices, called recirculated gas, EGR gas, or EGR gas (for exhaust gas recirculation), and EGR gas coolers that include such devices.
- the invention aims to solve the problem of fouling EGR coolers.
- the invention proposes for this purpose an EGR gas distribution device, from a motor vehicle engine to a component which defines an inlet orifice and a gas outlet opening opening on the same first plane, an inlet orifice and an outlet orifice towards the component opening on the same second plane parallel to the first plane, and rotating means arranged between the first and second planes, to allow a flow of gas in one direction, and in the opposite direction.
- the rotary means may also be provided to allow the flow rate of the EGR gas to be recirculated to the inlet
- the rotary means may comprise a cylindrical piece rotating around its axis of revolution, whose two end faces are facing the first and second planes, the cylindrical part defining on its two faces ports of communication ports arranged to allow, according to the rotation angle of the cylinder part , a circu lation of the flow of gas in one direction, a flow of gas in the opposite direction.
- the cylindrical piece can define two pairs of lights, the lights of the first pair being straight, and the lights of the second pair being crossed, the rotating means can also be provided to pass the component, for example the cylindrical piece can define a cavity on the face facing the foreground to allow the flow of gas flow from the inlet directly to the outlet, the cylindrical part can have two lights and in both lights, the input and output of the inlet and outlet ports may be of elongate shape and may be arranged so as to allow, according to the angle of rotation of the cylindrical part, a circulation of the flow of gas in one direction, a circulation of gas in the opposite direction, and a bypass of the component.
- the component may be a heat exchanger.
- the invention also relates to an EG R gas cooler which comprises such a device.
- the cooler may be of the type having a U-shaped heat exchanger.
- FIGS. 1a, 1b, 1 c, 1 d and 1 e are diagrams of a distribution device according to a first embodiment
- FIG. 2 shows the position of the cylindrical part in bypass mode
- FIG. 3 represents the position of the cylindrical part.
- FIG. 4 represents the position of the cylindrical part in reverse flow mode
- FIG. 5 represents an EGR cooler provided with a device according to a second embodiment
- FIG. 6 represents the cylinder part according to FIG. the second embodiment
- FIG. 7 represents the position of the cylindrical part in normal flow mode
- FIG. 8 represents the position of the cylindrical part in reverse flow mode
- FIG. 10 represents the position of the cylindrical part in bypass mode.
- the distribution device is intended to direct the flow of recirculated gas from a motor vehicle engine to a component, for example to a heat exchanger.
- This distribution device may be part of a recirculated gas cooler, for example a gas cooler EG R which comprises a heat exchanger U.
- the device defines an inlet orifice e1 and an outlet orifice if gas opening on a same first plane, an inlet orifice e2 and an outlet orifice s2 to the component 2 opening on the same second plane parallel to the first plane, and rotary means, arranged between the first and second planes, to allow u no gas circulation in one direction, and in the opposite direction.
- the rotary means for reversing the flow comprise a cylindrical piece 3 all around its axis of revolution, whose two end faces are facing the first and second planes.
- the cylindrical part 3 defines the openings of communication openings (e1, si, e2, s2) arranged to allow, according to the angle of rotation of the cylinder part 3, a circu lation of the flow of gas in one direction and a gas flow in the opposite direction.
- the cylindrical part 3 can be actuated by any means known to those skilled in the art. An electronic latch will control this neural action.
- the cylindrical part 3 defines two pairs of lights; the lights (4,5) of the first pair are called “straight” ( Figure 1a), and the lights (6,7) of the second pair are called “crossed” ( Figure 1 e).
- the inlet orifice e1 of gas and the inlet orifice e2 of the exchanger face each other. It is the same for the outlets si and s2.
- the lights (4,5) of the first pair are said to be straight because they communicate the orifices facing each other.
- the light 4 communicates the inlet ports e1 and e2
- the light 5 communicates the outlet ports si and s2 (see Figures 1a, 1d and 3).
- FIG. 1 e shows a non-limiting embodiment, in which the lights (4 to 7) have a radius of curvature of way to follow a circle 9 of diameter smaller than the diameter of the cylindrical part 3.
- the rotary means may also be provided to allow the dosing of the EGR gas flow which is intended to recirculate on admission.
- the advantage is to be able to control the flow of EGR gas, as will a conventional EGR valve.
- the actuating means of the cylindrical part 3 can be of the proportional type, that is to say that they can rotate the cylindrical part 3 at intermediate rotational angles between the main positions (position of normal flow, reverse flow position). These actuating means thus make it possible to vary the overlap surface between the light and the orifices (e1, e2, s1, s2).
- a light of each pair can define a section of declining profile.
- the lights 6 and 5 have this section with a degressive profile, that is to say that the upper arch of the profile joins the lower arch, at one end of section of the light. It is this degressive profile which according to the angle of rotation of the cylindrical part, varies the overlap surface with the orifices (e1, e2, s1, s2).
- the rotary means may also be provided for passing the exchanger 2; in a nonlimiting manner, a cavity 8 may be defined on the face facing the first plane to allow the flow of gas flow from the inlet e1 directly to the outlet if (see FIG. 2).
- This cavity 8 may be for example a circular longitudinal groove which follows the curve of the circle 9, and which is of a length for communicating the inlet port e1 with the outlet orifice if.
- the groove and the two pairs of lights are arranged in the same circle 9.
- FIGS. 5 to 10 A second embodiment is illustrated in FIGS. 5 to 10.
- the cylindrical part 11 defines two slots 12 and 13. This cylindrical part 11 is located in a cooler (1) EGR which comprises a heat exchanger 2 arranged in a U-shape (FIG. 5).
- EGR which comprises a heat exchanger 2 arranged in a U-shape (FIG. 5).
- FIG. 9 which represents a geometrical view of all the orifices (e1, si, e2, s2) and of the slots (12, 13) when the cylindrical part 11 is in the closed position (that is to say that it there is no gas flow to the exchanger 2)
- the two lights 12 and 13 the inlet e1 and the gas outlet if the inlet port e2 and exit s2 are of elongated rectilinear shape and, are arranged so as to allow, according to the angle of rotation of the cylindrical part 11, a flow of gas flow in one direction ( Figure 7), a flow of gas in the opposite direction ( Figure 8 ), and a bypass of the exchanger 2 ( Figure 10).
- the overlap surface can be varied between the two slots (12, 13) and the inlet and outlet ports (e1, e2, si and s2), This makes it possible to dose the flow of EGR gas which passes through the exchanger and which is intended to recirculate at the intake.
- the inlet orifices e1 and outlet si of the cooler 1 are parallel to each other.
- the inlet openings e2 and outlet s2 of the exchanger 2 are parallel to each other.
- the inlet orifices e1 and outlet si of the cooler 1 are inclined by 90 degrees relative to the inlet orifices e2 and outlet s2 of the exchanger 2.
- the lights 12 and 13 are parallel to each other and offset a distance at least equal to the overall width of the inlet and outlet ports (e1, e2, si and s2) of the cooler 1 or the exchanger 2.
- the lights 12 and 13 are offset by a distance d corresponding to the width of the two inlet openings e2 and outlet s2 of the exchanger 2.
- the lights 12 and 13 made on the cylindrical part 11 are not not limiting. We can very well envisage to realize a piercing positioned at each end of each lumen (12, 13). It can thus be found with a light and two holes, or with 4 holes alone (see references 14, 15, 16, 17 of Figure 6).
- the geometrical drawings of FIGS. 7 to 10 represent the different modes of the distribution device of the exchanger. The circulation of the flow can be done only by the common areas shared by the lights and the orifices. These areas represent the overlapping surfaces. As illustrated in FIG.
- the lumen 12 of the cylindrical part 1 1 puts the inlet orifice e1 of the cooler and the inlet orifice e2 of the heat exchanger 2 into communication.
- the light 13, for its part, communicates the outlet orifice s2 of the heat exchanger 2 with the outlet orifice si of the cooler 1. The flow is then said in the normal direction, and small rotations of the cylindrical part 1 1 can vary the gas flow.
- FIG. 7 the flow direction of the EGR gas flow is reversed with respect to that of FIG. 7.
- the lumen 12 of the cylindrical part 1 1 communicates the inlet orifice e 1 of the cooler and the orifice
- the flow is then said in the opposite direction, and small rotations of the cylindrical part 1 1 can vary the gas flow.
- none of the lights 12 and 13 relate the orifices (e1, e2, s1, s2).
- the cylindrical part 1 1 is in a so-called closed position. There is no EGR gas circulation.
- Figure 10 shows the cylindrical part 1 1 in bypass position.
- the lights 12 and 13 connect all the orifices (e1, e2, s1, s2) between them.
- the flow of EGR gas then passes through the lumens 12 and 13, but does not pass through the heat exchanger 2, because the flow of gas is redirected within the inlet orifices e2 and outlet s2 of the heat exchanger 2.
- One of the advantages is that the distribution device according to the invention performs three functions. The first is to reverse the flow of EGR gas flowing through the exchanger to remedy the problem of fouling.
- the second is to measure the flow of EGR gas. This function is normally performed by an EGR valve.
- the third is to be able to pass the heat exchanger of the cooler. This function is normally performed by a parallel bypass circuit.
- the present invention therefore has the advantage of removing components of the EGR line.
- An additional advantage of the second embodiment is that it is possible to make controlled cooling of the EGR gas flow when its flow rate is at most: between the bypass position and the normal direction of the cylindrical part 1 1, keeps the same flow of EGR gas. The difference lies in the proportion of EGR gas that will be passed over that which will pass through the heat exchanger 2. Thus, by controlling the actuating means proportionally, one can play on the temperature of the EGR gas which will recirculate to admission. The same controlled cooling can be achieved between the bypass position and the reverse position of the cylindrical part 1 1.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust-Gas Circulating Devices (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0552971A FR2891591A1 (fr) | 2005-09-30 | 2005-09-30 | Dispositif de repartition des gaz recircules, et refroidisseur de gaz recircules comportant un tel dispositif |
| PCT/FR2006/050974 WO2007039701A1 (fr) | 2005-09-30 | 2006-10-02 | Dispositif de repartition des gaz recircules, et refroidisseur de gaz recircules comportant un tel dispositif |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1934459A1 true EP1934459A1 (fr) | 2008-06-25 |
| EP1934459B1 EP1934459B1 (fr) | 2009-12-23 |
Family
ID=36579198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP06831260A Not-in-force EP1934459B1 (fr) | 2005-09-30 | 2006-10-02 | Dispositif de repartition des gaz recircules, et refroidisseur de gaz recircules comportant un tel dispositif |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US7770563B2 (fr) |
| EP (1) | EP1934459B1 (fr) |
| JP (1) | JP4949402B2 (fr) |
| AT (1) | ATE453046T1 (fr) |
| DE (1) | DE602006011349D1 (fr) |
| FR (1) | FR2891591A1 (fr) |
| WO (1) | WO2007039701A1 (fr) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2891590B1 (fr) * | 2005-09-30 | 2010-09-17 | Renault Sas | Dispositif de repartition des gaz recircules, refroidisseur de gaz recircules et procede de recirculation de gaz d'echappement. |
| DE102007038882A1 (de) | 2007-08-17 | 2009-02-19 | Pierburg Gmbh | Abgaskühlvorrichtung für eine Verbrennungskraftmaschine |
| DE102009032681A1 (de) * | 2008-07-10 | 2010-01-28 | Hirschmann Automotive Gmbh | AGR-Ventil-System |
| JP5009270B2 (ja) * | 2008-11-24 | 2012-08-22 | 愛三工業株式会社 | Egrクーラの切替バルブ |
| JP5584068B2 (ja) * | 2010-09-16 | 2014-09-03 | 愛三工業株式会社 | Egrクーラバイパスバルブ及びegrシステム |
| US8763394B2 (en) | 2010-10-25 | 2014-07-01 | General Electric Company | System and method for operating a turbocharged system |
| GB2537829A (en) | 2015-04-23 | 2016-11-02 | Gm Global Tech Operations Llc | EGR Valve Assembly |
| JP6865154B2 (ja) * | 2017-12-18 | 2021-04-28 | ヤンマーパワーテクノロジー株式会社 | エンジン |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3211217A (en) * | 1963-07-12 | 1965-10-12 | Westinghouse Electric Corp | Fluid reversing valve structure |
| US4323116A (en) * | 1979-12-17 | 1982-04-06 | Carrier Corporation | Flow control apparatus |
| JPS63297877A (ja) * | 1987-05-28 | 1988-12-05 | Meidensha Electric Mfg Co Ltd | 流体の多方向切換コック装置 |
| DE3727467A1 (de) * | 1987-08-18 | 1989-03-02 | Mesroc Gmbh | 4-wege-armatur zum umlenken der stroemungsrichtung von in rohrleitungs-systemen gefuehrten, fluessigen oder gasfoermigen medien |
| DE19524603C1 (de) * | 1995-07-06 | 1996-08-22 | Daimler Benz Ag | Verbrennungsmotor, insbesondere Verbrennungsmotor für ein Kraftfahrzeug, mit einer Abgasrückführung |
| JP3733707B2 (ja) * | 1997-09-19 | 2006-01-11 | いすゞ自動車株式会社 | Egrクーラー付きegr装置 |
| JP3358554B2 (ja) * | 1998-08-19 | 2002-12-24 | トヨタ自動車株式会社 | 内燃機関 |
| DE19841927A1 (de) * | 1998-09-14 | 2000-03-16 | Wahler Gmbh & Co Gustav | Einrichtung zur Rückführung eines Abgasstromes zum Saugrohr einer Brennkraftmaschine |
| JP2001004052A (ja) * | 1999-06-21 | 2001-01-09 | Pacific Ind Co Ltd | 電磁パイロット式四方弁 |
| JP2001152515A (ja) * | 1999-11-29 | 2001-06-05 | Toto Ltd | 摺動バルブおよび局部洗浄装置 |
| JP3578102B2 (ja) * | 2000-03-27 | 2004-10-20 | トヨタ自動車株式会社 | 内燃機関の排気浄化装置 |
| JP3801012B2 (ja) * | 2001-06-05 | 2006-07-26 | トヨタ自動車株式会社 | 流路切換弁 |
| FR2833653B1 (fr) * | 2001-12-14 | 2004-07-09 | Peugeot Citroen Automobiles Sa | Systeme de recyclage des gaz d'echappement pour moteur diesel de vehicule automobile |
| SE520124C2 (sv) * | 2002-07-31 | 2003-05-27 | Marinnovation Hb | Backspolningsventil med genomströmmat ventilhus |
| US6904898B1 (en) * | 2003-09-09 | 2005-06-14 | Volvo Lastyagnar Ab | Method and arrangement for reducing particulate load in an EGR cooler |
| JP4323333B2 (ja) * | 2004-01-19 | 2009-09-02 | 株式会社マーレ フィルターシステムズ | 内燃機関の排気還流装置 |
-
2005
- 2005-09-30 FR FR0552971A patent/FR2891591A1/fr active Pending
-
2006
- 2006-10-02 EP EP06831260A patent/EP1934459B1/fr not_active Not-in-force
- 2006-10-02 WO PCT/FR2006/050974 patent/WO2007039701A1/fr not_active Ceased
- 2006-10-02 AT AT06831260T patent/ATE453046T1/de not_active IP Right Cessation
- 2006-10-02 JP JP2008532846A patent/JP4949402B2/ja not_active Expired - Fee Related
- 2006-10-02 US US12/088,442 patent/US7770563B2/en not_active Expired - Fee Related
- 2006-10-02 DE DE602006011349T patent/DE602006011349D1/de active Active
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2007039701A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2007039701A1 (fr) | 2007-04-12 |
| JP2009510319A (ja) | 2009-03-12 |
| US7770563B2 (en) | 2010-08-10 |
| ATE453046T1 (de) | 2010-01-15 |
| DE602006011349D1 (de) | 2010-02-04 |
| EP1934459B1 (fr) | 2009-12-23 |
| US20080216802A1 (en) | 2008-09-11 |
| JP4949402B2 (ja) | 2012-06-06 |
| FR2891591A1 (fr) | 2007-04-06 |
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