EP1247974A1 - Abgasrückführventil - Google Patents
Abgasrückführventil Download PDFInfo
- Publication number
- EP1247974A1 EP1247974A1 EP02005592A EP02005592A EP1247974A1 EP 1247974 A1 EP1247974 A1 EP 1247974A1 EP 02005592 A EP02005592 A EP 02005592A EP 02005592 A EP02005592 A EP 02005592A EP 1247974 A1 EP1247974 A1 EP 1247974A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- exhaust gas
- chamber
- gas recirculation
- recirculation valve
- 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
Images
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
- F02M26/66—Lift valves, e.g. poppet valves
- F02M26/67—Pintles; Spindles; Springs; Bearings; Sealings; Connections to actuators
-
- 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
- F02M26/53—Systems for actuating EGR valves using electric actuators, e.g. solenoids
-
- 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
- F02M26/50—Arrangements or methods for preventing or reducing deposits, corrosion or wear caused by impurities
-
- 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
- F02M26/55—Systems for actuating EGR valves using vacuum actuators
-
- 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
- F02M26/74—Protection from damage, e.g. shielding means
Definitions
- the invention relates to an exhaust gas recirculation valve according to the preamble of the claim 1.
- exhaust gas recirculation valves are, for example, from DE 198 31 140 A 1 are known and are used in internal combustion engines to reduce exhaust gas pollutants and to reduce fuel consumption in use. They consist of a valve part and an actuating part, these parts being connected to one another.
- the valve part has an exhaust gas inlet connected to the exhaust line and one connected to the intake manifold exhaust port. Between exhaust gas entry and the exhaust outlet duct is controlled by a closing body Valve seat. This closing body is actuated via a valve rod which is guided with radial play in the control element. The one facing away from the valve closing body Side of the valve stem is in an area of the valve that is the atmosphere is freely accessible.
- the Air Since the area of the valve part in which the exhaust gas outlet channel is arranged, the Air is subjected to pressure pulsations from the intake manifold the atmosphere to the intake manifold along the bearing of the valve stem in the Valve part. This air flow is deliberate and should prevent that between Fix the valve rod and valve part in the area of the passage particles of the exhaust gas; at the same time the air flow cools the valve stem.
- the above object is achieved by the features of claim 1 solved. Due to the gas-tight connection of the actuator with the Valve part ensures that no escape to the atmosphere when the Internal combustion engine can be done. However, this measure is not enough to to ensure a permanently safe function of the exhaust gas recirculation valve. It there is namely once the risk that the omitted from the prior art known air flow particles of the exhaust gas deposit on the actuator and its affect mechanical functions or that the actuator while running Motor is overheated. It is therefore also provided that the valve closing body opposite side of the valve rod from an atmospheric ventilated Chamber is enclosed.
- the chamber is in operation Internal combustion engine connected to the atmosphere and thus allows more advantageous Way the air flow described above while at a standstill the internal combustion engine ensures that the chamber has no connection has more to the atmosphere and thus the escape of hydrocarbons prevented through the exhaust gas recirculation valve to the atmosphere.
- FIG. 1 which represents the state of the art, is an adjusting part 1 connected to a valve part 2.
- the valve part 2 has an exhaust gas inlet 3 and an exhaust gas outlet duct 4.
- a valve seat 5 is located between them is controlled by a valve closing body 6, which is closed by a valve rod 7 is actuate that in a bore or bearing bush in the valve part 2 with radial Game is led.
- the valve rod is actuated by actuator 1.
- the area of Valve rod 7, which faces away from the valve closing body 6, is freely accessible to the atmosphere. The direction of flow is shown by the arrows in the figures of exhaust gas or air with the internal combustion engine running.
- the control part 1 has the valve part 2 gas-tight by means of a component manufactured as a deep-drawn part 11 is connected, the sheet metal deep-drawn part screwed to the valve part 2 on the one hand and on the other hand is crimped to the control part 1. That way forms the component 11 is a chamber 9 which encloses the area of the valve rod 7, the the valve closing body 6 is facing away. There is a flow connection via a channel 12 the chamber 9 to a check valve 10, which here as an integral Part of the actuator 1 is formed.
- check valves are generally known and need not be described in detail.
- the illustrated Valve has an elastic mushroom as a valve element. However, it can also be a other valve shape can be used.
- the check valve 10 can of course be arranged directly on the component 11 his. Furthermore, it is possible to use the chamber 10 indirectly or directly by means of a to connect electro-switchable valve with the atmosphere, provided is that when energized, the valve opens when the internal combustion engine is running and connects to the atmosphere and that the valve is shut down Internal combustion engine is closed under spring force. It is also straightforward recognizable that the chamber 9 does not necessarily have to be arranged in the component 11, but it can also be part of the control part 1 or the valve part 2.
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)
- Lift Valve (AREA)
Abstract
Description
- Figur 1
- ein Abgasrückführventil nach dem Stand der Technik und
- Figur 2
- ein erfindungsgemäßes Abgasrückführventil.
Claims (6)
- Abgasrückführventil mit einem Stellteil (1) und einem Ventilteil (2) mit einem zwischen einem Abgaseintritt (3) und einem Abgasauslaßkanal (4) des Ventilteils (2) befindlichen Ventilsitz (5), der von einem Schließkörper (6) beherrscht wird, der mittels einer in den Abgasauslaßkanal (4) hineintauchenden Ventilstange (7) von einem Antrieb des Stellteils (1) betätigt wird, die mit radialem Spiel im Stellteil in einer Bohrung oder Lagerbuchse (8) geführt ist, dadurch gekennzeichnet, daß das Stellteil (1) mit dem Ventilteil (2) gasdicht verbunden ist und daß die dem Ventilschließkörper (6) abgewandte Seite der Ventilstange (7) außerhalb der Bohrung von einer atmosphärisch belüftbaren Kammer (9) umschlossen ist.
- Abgasrückführventil nach Anspruch 1, dadurch gekennzeichnet, daß die Kammer (9) über ein Rückschlagventil (10) mit der Atmosphäre verbindbar ist.
- Abgasrückführventil nach Anspruch 1, dadurch gekennzeichnet, daß die Kammer (9) über ein elektrisch geschaltetes Ventil mit der Atmosphäre verbindbar ist.
- Abgasrückführventil nach Anspruch 1, dadurch gekennzeichnet, daß die Kammer (9) durch ein das Stellteil (1) und das Ventilteil (2) gasdicht verbindendes Bauteil (11) gebildet ist.
- Abgasrückführventil nach Anspruch 4, dadurch gekennzeichnet, daß das Bauteil (11) ein Blechtiefziehteil ist, das einerseits mit dem Ventilteil (2) verschraubt und andererseits mit dem Stellteil (1) verbördelt ist.
- Abgasrückführventil nach Anspruch 2, dadurch gekennzeichnet, daß Rückschlagventil (10) integraler Bestandteil des Stellteils (1) ist und mittels eines in diesem befindlichen Kanal (12) mit der Kammer (9) in Verbindung steht.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10117413 | 2001-04-06 | ||
DE10117413A DE10117413A1 (de) | 2001-04-06 | 2001-04-06 | Abgasrückführventil |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1247974A1 true EP1247974A1 (de) | 2002-10-09 |
EP1247974B1 EP1247974B1 (de) | 2004-04-28 |
Family
ID=7680782
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02005592A Expired - Fee Related EP1247974B1 (de) | 2001-04-06 | 2002-03-12 | Abgasrückführventil |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1247974B1 (de) |
DE (2) | DE10117413A1 (de) |
ES (1) | ES2215945T3 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3047271A1 (fr) * | 2016-01-28 | 2017-08-04 | Peugeot Citroen Automobiles Sa | Moteur a combustion interne a actionneur electromagnetique refroidi |
IT201800003099A1 (it) * | 2018-02-27 | 2019-08-27 | Magneti Marelli Spa | Corpo farfallato o attuatore, in particolare per alimentazione di gas ad alta pressione, munito di sfiato |
WO2021259485A1 (de) * | 2020-06-25 | 2021-12-30 | Pierburg Gmbh | Abgasrückführvorrichtung für eine verbrennungskraftmaschine |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10332915B4 (de) * | 2003-07-19 | 2005-06-16 | Pierburg Gmbh | Abgasrückführsystem für eine selbstzündende Verbrennungskraftmaschine mit einem Turbolader |
DE102008016727A1 (de) * | 2008-04-01 | 2009-10-15 | Pierburg Gmbh | Ventil, insbesondere zur Steuerung von Abgasen bei Brennkraftmaschinen |
DE102016214784A1 (de) | 2016-08-09 | 2018-02-15 | Mahle International Gmbh | Ventileinrichtung einer Brennkraftmaschine |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4378777A (en) * | 1980-08-27 | 1983-04-05 | Toyo Kogyo Co., Ltd. | Internal combustion engine having exhaust gas recirculation system |
US5494255A (en) * | 1994-01-12 | 1996-02-27 | Robertshaw Controls Company | Solenoid activated exhaust gas recirculation valve |
US5911401A (en) * | 1995-08-29 | 1999-06-15 | Siemens Electric Limited | Electric actuated exhaust gas recirculation valve |
US6073617A (en) * | 1997-07-08 | 2000-06-13 | Siemens Canada Ltd. | Manifold-mounted emission control valve |
EP1035319A2 (de) * | 1999-03-11 | 2000-09-13 | BorgWarner Inc. | Elektromagnetisch betätigtes Abgasrückführungsventil |
EP1091112A2 (de) * | 1999-10-05 | 2001-04-11 | Pierburg Aktiengesellschaft | Ventileinheit, Brennluftansaugkanalabschnitt sowie Abgasrückführeinheit für Brennkraftmaschinen |
-
2001
- 2001-04-06 DE DE10117413A patent/DE10117413A1/de not_active Withdrawn
-
2002
- 2002-03-12 ES ES02005592T patent/ES2215945T3/es not_active Expired - Lifetime
- 2002-03-12 EP EP02005592A patent/EP1247974B1/de not_active Expired - Fee Related
- 2002-03-12 DE DE50200381T patent/DE50200381D1/de not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4378777A (en) * | 1980-08-27 | 1983-04-05 | Toyo Kogyo Co., Ltd. | Internal combustion engine having exhaust gas recirculation system |
US5494255A (en) * | 1994-01-12 | 1996-02-27 | Robertshaw Controls Company | Solenoid activated exhaust gas recirculation valve |
US5911401A (en) * | 1995-08-29 | 1999-06-15 | Siemens Electric Limited | Electric actuated exhaust gas recirculation valve |
US6073617A (en) * | 1997-07-08 | 2000-06-13 | Siemens Canada Ltd. | Manifold-mounted emission control valve |
EP1035319A2 (de) * | 1999-03-11 | 2000-09-13 | BorgWarner Inc. | Elektromagnetisch betätigtes Abgasrückführungsventil |
EP1091112A2 (de) * | 1999-10-05 | 2001-04-11 | Pierburg Aktiengesellschaft | Ventileinheit, Brennluftansaugkanalabschnitt sowie Abgasrückführeinheit für Brennkraftmaschinen |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3047271A1 (fr) * | 2016-01-28 | 2017-08-04 | Peugeot Citroen Automobiles Sa | Moteur a combustion interne a actionneur electromagnetique refroidi |
IT201800003099A1 (it) * | 2018-02-27 | 2019-08-27 | Magneti Marelli Spa | Corpo farfallato o attuatore, in particolare per alimentazione di gas ad alta pressione, munito di sfiato |
EP3533981A1 (de) * | 2018-02-27 | 2019-09-04 | Magneti Marelli S.p.A. | Mit entlüftung ausgestattete drosselklappe oder -aktuator, insbesondere zur zuführung von gas |
US10900571B2 (en) | 2018-02-27 | 2021-01-26 | Magneti Marelli S.P.A | Throttle body or actuator, in particular for supplying high pressure gas, provided with vent |
WO2021259485A1 (de) * | 2020-06-25 | 2021-12-30 | Pierburg Gmbh | Abgasrückführvorrichtung für eine verbrennungskraftmaschine |
Also Published As
Publication number | Publication date |
---|---|
ES2215945T3 (es) | 2004-10-16 |
EP1247974B1 (de) | 2004-04-28 |
DE50200381D1 (de) | 2004-06-03 |
DE10117413A1 (de) | 2002-10-17 |
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