WO2004025089A1 - Kombiventil - Google Patents
Kombiventil Download PDFInfo
- Publication number
- WO2004025089A1 WO2004025089A1 PCT/EP2003/008921 EP0308921W WO2004025089A1 WO 2004025089 A1 WO2004025089 A1 WO 2004025089A1 EP 0308921 W EP0308921 W EP 0308921W WO 2004025089 A1 WO2004025089 A1 WO 2004025089A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- valve
- outlet
- check valve
- opening
- baffle plate
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/22—Control of additional air supply only, e.g. using by-passes or variable air pump drives
- F01N3/227—Control of additional air supply only, e.g. using by-passes or variable air pump drives using pneumatically operated valves, e.g. membrane valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/22—Control of additional air supply only, e.g. using by-passes or variable air pump drives
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/6851—With casing, support, protector or static constructional installations
- Y10T137/6855—Vehicle
- Y10T137/6881—Automotive
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/87917—Flow path with serial valves and/or closures
- Y10T137/88054—Direct response normally closed valve limits direction of flow
Definitions
- the invention relates to a combination valve according to the preamble of claim 1.
- secondary air is supplied to the exhaust gas for aftertreatment of exhaust gases from an internal combustion engine, as a result of which, as a result of further exothermic reactions in the exhaust gas system, the pollutants in the exhaust gas are reduced and, in addition, any catalyst present is heated.
- a secondary air pump is used, which has a secondary air switching valve on the outlet side. is connected to the exhaust duct.
- the secondary air switching valve is combined with a non-return valve and prevents exhaust gas from entering the secondary air duct in operating phases in which the pressure of the secondary air pump is lower than the exhaust gas pressure or when the secondary air pump is not in operation.
- a combination valve is also known, especially for secondary air blowers in internal combustion engines with a regulated three-way catalytic converter. It shows one with one Valve inlet and valve outlet. provided valve housing in which a pneumatically operated shut-off valve and a check valve downstream of this are integrated.
- This type of combination valve is referred to below as "pneumatic combination valve”.
- New combination valves are currently being developed which consist of an electrically operated shut-off valve and also a check valve following this in the direction of flow. This type of combination valve is hereinafter referred to as "electric combination valve”.
- the housing of the pneumatic or electric combination valve is divided in the area of the check valve plate into an upper housing part and a lower housing part, the non-return valve plate being held between the two housing parts.
- the outlet of the combination valve is arranged axially parallel or at an angle to the passage openings in the check valve plate, with a channel piece widening in a funnel shape towards the passage openings.
- the exhaust gas temperature and the exhaust gas pressure can be so high that with the known secondary air switching valves. Combi valves the specified specifications may no longer be adhered to.
- the invention is based on the object of additionally improving the service life of a generic combination valve with respect to higher exhaust gas pressures and / or exhaust gas temperatures and in the case of the electrical combination valve with regard to the electrical design, or generally enabling its use at the intended location. It is solved according to the invention by the features of claim 1. Further advantageous embodiments result from the subclaims.
- devices are provided between the check valve and the valve outlet of the combination valve deflect an exhaust gas flow entering from the outlet at least once at least 90 °.
- the non-return valve and the switching valve of the combination valve are not acted upon directly by the hot exhaust gases, but only after the exhaust gases have passed the lower valve housing over relatively long flow paths after a single or multiple deflection and / or reflection for the purpose of reducing energy and then when they hit these have a lower pressure and / or a lower temperature.
- Devices of this type expediently comprise a baffle plate, which is arranged parallel or at an angle to the check valve, and separates an antechamber facing the check valve from a deflection chamber connected to the valve outlet.
- the baffle plate is displaced to the valve opening of the check valve arranged a passage opening, so that the exhaust gases can not flow directly through the passage opening for Ventil ⁇ réelle but are deflected.
- the baffle plate can be used to save space in the lower part of the housing of the combination valve, whereby an antechamber is formed towards the check valve, which is separated by the baffle plate from a deflection chamber which is connected to the valve outlet.
- the outlet is expediently arranged as far as possible from the passage opening and offset from it, so that an effective multiple deflection and reflection of the exhaust gases takes place within the lower housing part in a small installation space.
- a further deflection of the exhaust gases in the lower part of the housing can be achieved in that the shortest connection between the passage opening in the baffle plate and the outlet or a duct section adjoining the passage opening is blocked by a baffle wall adapted to the spatial conditions. This extends across the baffle plate. Exhaust gases caused by exhaust let it penetrate into the lower part of the housing, first hit the baffle and / or valve housing wall, which is delimited at the top by the baffle plate, and have to flow around it, only then to get through the opening of the baffle plate from the deflection chamber into the anteroom of the combination valve.
- the exhaust gas emits a large amount of heat to the housing wall, the baffle plate and the baffle wall.
- the lower housing part it is expedient for the lower housing part to have cooling fins on the outside, which emit the heat to the ambient air.
- Fig. 1 shows a partial longitudinal section through an inventive combination valve
- FIG. 2 shows a view into a lower housing part without a baffle plate of a combination valve according to the invention.
- the combination valve 10 has a housing which is divided into an upper housing part 11 and a lower housing part 28.
- the upper housing part 11 comprises an air connection 12 and a switching valve, the closing body 15 of which closes a valve opening 14.
- the closing body 15 is actuated in a known manner via a valve rod 16 by an actuating device 17 by means of negative pressure.
- a vacuum connection of the actuating device 17 is identified by 18.
- a check valve plate 21 of a check valve 20 is inserted after the closing body 15 into the upper housing part 11 and is held between the upper housing part 11 and the lower housing part 28.
- the check valve 20 of the valve under consideration here consists of a check valve plate 21, which is inserted into the valve housing and has a plurality of valve openings 23 distributed over the circumference, and a diaphragm spring 22, which is attached as a closing body on one side to the valve opening on the side of the passage opening, and a stopper plate 25 to limit the spring travel of the diaphragm spring and to protect it from direct exposure to exhaust gas
- valve opening 14 Between the valve opening 14 and the check valve plate 21 there is a valve chamber 13 into which the closing body 15 is immersed when the valve opening 14 is open (FIG. 1).
- the check valve plate 21 has a central valve opening 23 which is attached to the check valve plate 21 on the outflow side, offset radially to the valve opening 14.
- a baffle plate 24 is provided in the lower housing part 28, which in the present case runs parallel to the check valve plate 21 and thus transversely to the valve opening 23 of the check valve 20. Apart from a passage opening 30 (FIG. 2), it separates an anteroom 35 (FIG. 1) from a deflection chamber 26 (FIG. 2). The center line of the passage opening 30 is denoted by 34 and shows the position of the passage opening in FIG. 1.
- the passage opening 30 is offset with respect to the valve opening of the check valve 20 to the same side on which the diaphragm spring 22 and the stopper plate 25 is also fastened to the check valve plate 21, so that exhaust gas flowing into the antechamber 35 through the passage opening 30 on the stopper plate 25 and the diaphragm spring 22 is deflected before it through the valve opening 23 can flow if the diaphragm spring 22 does not close completely tight.
- the outlet 19 is located as far as possible from the passage opening 30 on the other side of the lower housing part 28.
- the exhaust gas entering through the outlet 19 first opens into the opening 33 Opening 33 connects to the passage opening 30 towards a duct piece 31 which opens into the deflection chamber 26 (FIG. 2).
- the center line 32 of the opening 33 is also shown in FIG. 1, while the passage opening 30 with its center line 34 is shown in broken lines in FIG. 2.
- a baffle wall 27 runs in the deflection chamber 26 between the passage opening 30 and the opening 33 of the duct piece, so that a direct flow of the exhaust gas from the opening 33 to the passage opening 30 is prevented and the exhaust gas has to flow around the baffle wall 27.
- the exhaust gas flow first experiences a sharp deflection and reflection when it emerges from the opening 33, then at the free end of the baffle wall 27, then at the passage opening 30 and finally at the check valve plate 21, as a result of which the exhaust gas pressure and the exhaust gas temperature are brought to values which the Specification for air injection switching valves correspond.
- the lower housing part 28 has cooling ribs 29 on the outside, which enlarge the heat-emitting surface of the valve housing and thus contribute to cooling the exhaust gas.
- the separation between the upper housing part 11 and the lower housing part 28 advantageously takes place in the region of the check valve plate 21.
- the check valve 20 can be installed without great effort
- the baffle plate 24 can be inserted into the ' from the parting plane
- Lower housing part 28 are used.
- the lower housing part 28 with the channel piece 31 and the baffle 27 can be produced relatively easily in the die casting process.
- the passage opening 30 through the baffle plate 24 should expediently preferably be positioned below the stop plate 25.
- the diaphragm spring 22 is optimally protected against vibration-stimulating exhaust gas pulsations, against pressure and temperature loads, and against contamination, e.g. B. by soot deposits. This ' effect can be increased by a closed shape of the stopper plate 25.
- the exhaust gases are forced to flow around a long path in the case of a diaphragm spring 22 which does not close quite tightly.
- a desired throttling effect can additionally be achieved by a corresponding choice of the diameter of the passage opening 30 if necessary.
- This enables the characteristic curve of the secondary air mass supplied to the engine to be changed and to a certain extent adapted to the need.
- the throttling can achieve a better uniform distribution of the secondary air masses supplied to the individual cylinder banks.
- the throttling function thus achieved enables the same air pump to be used for more applications.
- the heat dissipation can be intensified by an appropriate design of the cooling fins 29 with regard to the position with respect to the inflow direction which is caused by the airstream and / or cooler. generated cooling air and the fact that the valve housing also has cooling fins on the outside where the baffle plate 24 and baffle wall 27 are from the inside.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03788693A EP1534937A1 (de) | 2002-08-31 | 2003-08-12 | Kombiventil |
JP2004535081A JP4127694B2 (ja) | 2002-08-31 | 2003-08-12 | 多目的弁 |
US10/805,641 US7024852B2 (en) | 2002-08-31 | 2004-03-20 | Multi-purpose valve |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10240265.5 | 2002-08-31 | ||
DE2002140265 DE10240265B4 (de) | 2002-08-31 | 2002-08-31 | Kombiventil |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/805,641 Continuation-In-Part US7024852B2 (en) | 2002-08-31 | 2004-03-20 | Multi-purpose valve |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004025089A1 true WO2004025089A1 (de) | 2004-03-25 |
Family
ID=31502220
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2003/008921 WO2004025089A1 (de) | 2002-08-31 | 2003-08-12 | Kombiventil |
Country Status (5)
Country | Link |
---|---|
US (1) | US7024852B2 (de) |
EP (1) | EP1534937A1 (de) |
JP (1) | JP4127694B2 (de) |
DE (1) | DE10240265B4 (de) |
WO (1) | WO2004025089A1 (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4360303B2 (ja) * | 2004-08-20 | 2009-11-11 | 株式会社デンソー | 空気制御弁 |
JP4064396B2 (ja) * | 2004-10-28 | 2008-03-19 | 日産ディーゼル工業株式会社 | 還元剤容器の構造 |
US8429896B2 (en) * | 2006-04-18 | 2013-04-30 | Kohler Co. | Engine exhaust systems with secondary air injection systems |
JP5540802B2 (ja) * | 2010-03-22 | 2014-07-02 | 株式会社デンソー | 二次空気制御弁 |
US8485313B2 (en) | 2010-06-18 | 2013-07-16 | Briggs & Stratton Corporation | Muffler and engine system |
DE102014104578B4 (de) | 2014-04-01 | 2020-02-06 | Pierburg Gmbh | Klappenvorrichtung für eine Verbrennungskraftmaschine |
DE102014104579B4 (de) | 2014-04-01 | 2017-05-11 | Pierburg Gmbh | Klappenvorrichtung für eine Verbrennungskraftmaschine |
DE102014104577B4 (de) * | 2014-04-01 | 2020-02-06 | Pierburg Gmbh | Abgasklappenvorrichtung für eine Verbrennungskraftmaschine |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0367383A2 (de) * | 1988-11-04 | 1990-05-09 | Nok Corporation | Lamellenventilvorrichtung mit Luftregelungsventil |
US5699664A (en) * | 1994-11-17 | 1997-12-23 | Sagem Sa | Shut-off valve unit for a circuit for injecting air in the exhaust system of an internal combustion engine |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4191013A (en) * | 1976-06-02 | 1980-03-04 | Nippon Soken, Inc. | Device for purifying exhaust gases from internal combustion engine |
JPS54121323A (en) * | 1978-03-13 | 1979-09-20 | Toyota Motor Corp | Exhaust gas control actuator |
JPS5712165Y2 (de) * | 1978-07-21 | 1982-03-10 | ||
FR2667649B1 (fr) * | 1990-10-09 | 1993-01-22 | Peugeot | Dispositif d'insufflation d'air dans le circuit d'echappement. |
US5203872A (en) * | 1991-03-21 | 1993-04-20 | Borg-Warner Automotive Electronic & Mechanical Systems Corporation | Secondary air control and check valves |
DE4204415A1 (de) * | 1992-02-14 | 1993-08-19 | Bosch Gmbh Robert | Kombiventil |
US5421366A (en) * | 1994-06-06 | 1995-06-06 | Borg-Warner Automotive, Inc. | Solenoid operated air control and check valve |
DE19731622B4 (de) * | 1997-07-23 | 2006-08-24 | Volkswagen Ag | Abgasnachbehandlungsvorrichtung und Sekundärluftschaltventil für eine Brennkraftmaschine mit einem Sekundärluftzuführ-System |
US6453667B1 (en) * | 2000-09-01 | 2002-09-24 | Siemens Automotive Inc. | Air control valve and method for engine exhaust gas treatment |
-
2002
- 2002-08-31 DE DE2002140265 patent/DE10240265B4/de not_active Expired - Fee Related
-
2003
- 2003-08-12 JP JP2004535081A patent/JP4127694B2/ja not_active Expired - Fee Related
- 2003-08-12 EP EP03788693A patent/EP1534937A1/de not_active Withdrawn
- 2003-08-12 WO PCT/EP2003/008921 patent/WO2004025089A1/de not_active Application Discontinuation
-
2004
- 2004-03-20 US US10/805,641 patent/US7024852B2/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0367383A2 (de) * | 1988-11-04 | 1990-05-09 | Nok Corporation | Lamellenventilvorrichtung mit Luftregelungsventil |
US5699664A (en) * | 1994-11-17 | 1997-12-23 | Sagem Sa | Shut-off valve unit for a circuit for injecting air in the exhaust system of an internal combustion engine |
Also Published As
Publication number | Publication date |
---|---|
US20040177608A1 (en) | 2004-09-16 |
JP2005520097A (ja) | 2005-07-07 |
DE10240265B4 (de) | 2005-09-01 |
US7024852B2 (en) | 2006-04-11 |
DE10240265A1 (de) | 2004-03-11 |
JP4127694B2 (ja) | 2008-07-30 |
EP1534937A1 (de) | 2005-06-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1030050B2 (de) | Abgasrückführsystem | |
DE19524603C1 (de) | Verbrennungsmotor, insbesondere Verbrennungsmotor für ein Kraftfahrzeug, mit einer Abgasrückführung | |
AT510236B1 (de) | Verfahren zur motorbremsung | |
DE102006007843B4 (de) | Auspuffkrümmeranordnung | |
DE2738929B2 (de) | Druckgesteuertes Abgas-Bypaßventil für abgasturbogeladene Brennkraftmaschinen | |
DE102014202447A1 (de) | Abgaswärmeübertrager | |
DE3237425A1 (de) | Rueckschlagventil | |
DE102007053847A1 (de) | Abgasrückführungssystem für einen Verbrennungsmotor | |
DE10258022A1 (de) | Brennkraftmaschine mit einem Abgasturbolader | |
DE10240265B4 (de) | Kombiventil | |
DE102015223740A1 (de) | Wastegate-Baugruppe für einen Turbolader | |
DE102020213993A1 (de) | Ventil und Vorrichtung zum Erhitzen von Öl mittels Abgaswärme | |
DE4218523C1 (en) | Catalyst appts. allowing easy operation of temp. - includes main exhaust gas line, thin by=pass line, exhaust gas line and control unit | |
EP3548721B1 (de) | Brennkraftmaschine mit einem zylinderkopf sowie mit einem sekundärluftsystem | |
DE19821130B4 (de) | Brennkraftmaschine mit einer Motorstaubremse | |
DE102015008803A1 (de) | Auslasssystem mit entfernt angeordneter Auslasssteuervorrichtung mit mehreren Ventilen | |
DE102016214784A1 (de) | Ventileinrichtung einer Brennkraftmaschine | |
DE102018214922A1 (de) | Abgasanlage | |
DE102014203015A1 (de) | Verfahren und Vorrichtung zum Führen eines Abgasstroms eines Verbrennungsmotors mit einem lastabhängigen Wärmeübergangskoeffizienten | |
DE102005005487B4 (de) | Schalldämpfer für eine Abgasanlage einer Brennkraftmaschine | |
DE102019202380A1 (de) | Brennkraftmaschine mit einem Abgaskrümmer und einem Abgasturbolader | |
WO2020043222A1 (de) | System der zusatzkühlung des abgaskrümmers | |
DE102012008990A1 (de) | System zur Sekundärlufteinblasung für eine Brennkraftmaschine | |
DE102013215417B4 (de) | System zur Sekundärlufteinblasung für eine Brennkraftmaschine | |
DE10232910B4 (de) | Wassergekühlte mehrzylindrige Brennkraftmaschine |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 2003788693 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2004535081 Country of ref document: JP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 10805641 Country of ref document: US |
|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): JP US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWP | Wipo information: published in national office |
Ref document number: 2003788693 Country of ref document: EP |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 2003788693 Country of ref document: EP |