DE10011916A1 - Exhaust gas feed-back valve body has housing in which valve rod is displaceably arranged, on which at least one valve head is fitted - Google Patents
Exhaust gas feed-back valve body has housing in which valve rod is displaceably arranged, on which at least one valve head is fittedInfo
- Publication number
- DE10011916A1 DE10011916A1 DE10011916A DE10011916A DE10011916A1 DE 10011916 A1 DE10011916 A1 DE 10011916A1 DE 10011916 A DE10011916 A DE 10011916A DE 10011916 A DE10011916 A DE 10011916A DE 10011916 A1 DE10011916 A1 DE 10011916A1
- Authority
- DE
- Germany
- Prior art keywords
- valve
- exhaust gas
- housing
- head
- rod
- 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- Withdrawn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
- F02M26/65—Constructional details of EGR valves
- F02M26/66—Lift valves, e.g. poppet valves
- F02M26/68—Closing members; Valve seats; Flow passages
-
- 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
- F02M26/11—Manufacture or assembly of EGR systems; Materials or coatings specially adapted for EGR systems
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lift Valve (AREA)
- Exhaust-Gas Circulating Devices (AREA)
Abstract
Description
Die Erfindung betrifft einen Abgasrückführventilkörper mit einem Gehäuse in dem eine Ventilstange verschiebbar angeordnet ist, wobei auf der Ventilstange zumindest ein Ventilkopf angeordnet ist.The invention relates to an exhaust gas recirculation valve body with a housing in the a valve rod is slidably arranged, at least on the valve rod a valve head is arranged.
Derartige Abgasrückführventilkörper sind hinlänglich bekannt. Sie regeln den Durchsatz des zurückzuführenden Abgases zur Brennkraftmaschine. Zur Optimierung der Durchsatzkennlinie des Abgases ist es bekannt dem Ventilkopf eine strömungsoptimierte Form zu geben. Der Ventilkopf besteht dabei aus Vollmaterial wodurch das dynamische Verhalten der kompletten Stelleinheit nachteilig beeinflußt wird. Desweiteren kann sich die gerade im Abgaskanal hohe Wärmeaufnahme und Wärmeeinleitung in den Abgasrückführventilkörper negativ auswirken.Such exhaust gas recirculation valve bodies are well known. You take care of it Throughput of the exhaust gas to be returned to the internal combustion engine. For Optimization of the throughput characteristic of the exhaust gas is known to the valve head to give flow-optimized shape. The valve head consists of solid material which adversely affects the dynamic behavior of the complete actuator becomes. Furthermore, the high heat absorption and especially in the exhaust duct Heat introduction into the exhaust gas recirculation valve body has a negative impact.
Hiervon ausgehend liegt der Erfindung daher die Aufgabe zugrunde, einen Abgasrückführventilkörper derart auszuführen, daß die oben genannten Nachteile vermieden werden.Proceeding from this, the invention is therefore based on the object Exhaust gas recirculation valve body to perform such that the disadvantages mentioned above be avoided.
Diese Aufgabe wird dadurch gelöst, daß der Ventilkopf ein aus Vollmaterial bestehendes Ventilschließteil und eine hohles Ventilleitelement aufweist.This object is achieved in that the valve head is made of solid material existing valve closing part and a hollow valve guide.
Dabei übernimmt das Ventilleitelement die Strömungsführung und damit die Beeinflussung der Durchsatzkennlinie, das Ventilschließteil bewirkt den dichten Verschluß des Abgasrückführventilkörpers. Durch diese Ausführungsform ist eine gewichtsarme und kostengünstige Konstruktion gewährleistet, die gleichzeitig eine geringe Wärmeleitung durch die geringe Kontaktfläche zwischen Ventilleitelement und Ventilschließteil gewährleistet. Durch die Reduzierung der bewegten Masse verbessert sich zusätzlich das dynamische Verhalten des Abgasrückführventilkörpers. Als besonders vorteilhaft hat es sich erwiesen, das Ventilleitelement als ein kegelstumpfförmiges Blechtiefziehteil auszuführen. Das Ventilleitelement wird vorteilhafter Weise auf die Ventilstange aufgepreßt und zusätzlich mit dieser verschweißt.The valve guide element takes over the flow guidance and thus the Influencing the throughput characteristic, the valve closing part causes the tight Closure of the exhaust gas recirculation valve body. By this embodiment is a low-weight and low-cost construction ensures that at the same time a Low heat conduction due to the small contact area between the valve guide element and valve closing part guaranteed. By reducing the moving mass the dynamic behavior of the Exhaust gas recirculation valve body. It has proven to be particularly advantageous that Valve guide element as a truncated cone-shaped sheet metal part. The Valve guide element is advantageously pressed onto the valve rod and additionally welded to this.
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird nachfolgend beschrieben.An embodiment of the invention is shown in the drawing and will described below.
Ein Abgasrückführventilkörper 1 weist ein Gehäuse 2 auf, in dem eine Ventilstange 3 verschiebbar gelagert ist. Auf der Ventilstange 3 ist ein Ventilkopf 4 zum Öffnen und Verschließen eines Abgasrückführkanales 5 angeordnet. Der Ventilkopf 4 weist erfindungsgemäß ein aus Vollmaterial bestehendes Ventilschließteil 6, sowie ein hohles Ventilleitelement 7 auf. Das Ventilleitelement 7 ist im vorliegendem Fall als kegelstumpfförmiges Blechtiefziehteil ausgeführt und auf die Ventilstange 3 aufgepreßt und zusätzlich mit ihr verschweißt.An exhaust gas recirculation valve body 1 has a housing 2 in which a valve rod 3 is slidably mounted. A valve head 4 for opening and closing an exhaust gas recirculation channel 5 is arranged on the valve rod 3 . According to the invention, the valve head 4 has a valve closing part 6 made of solid material, as well as a hollow valve guide element 7 . In the present case, the valve guide element 7 is designed as a truncated-cone sheet-metal deep-drawn part and is pressed onto the valve rod 3 and additionally welded to it.
Es sollte deutlich sein, daß für das Ventilleitelement auch andere für die Durchsatzoptimierung des zurückzuführenden Abgases mögliche Formen anwendbar sind.It should be clear that others for the valve guide Throughput optimization of the exhaust gas to be recycled possible forms are applicable.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10011916A DE10011916A1 (en) | 2000-03-11 | 2000-03-11 | Exhaust gas feed-back valve body has housing in which valve rod is displaceably arranged, on which at least one valve head is fitted |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10011916A DE10011916A1 (en) | 2000-03-11 | 2000-03-11 | Exhaust gas feed-back valve body has housing in which valve rod is displaceably arranged, on which at least one valve head is fitted |
Publications (1)
Publication Number | Publication Date |
---|---|
DE10011916A1 true DE10011916A1 (en) | 2001-09-13 |
Family
ID=7634363
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE10011916A Withdrawn DE10011916A1 (en) | 2000-03-11 | 2000-03-11 | Exhaust gas feed-back valve body has housing in which valve rod is displaceably arranged, on which at least one valve head is fitted |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE10011916A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015182248A1 (en) * | 2014-05-30 | 2015-12-03 | Toyota Jidosha Kabushiki Kaisha | Supercharged internal combustion engine |
CN110230558A (en) * | 2019-06-29 | 2019-09-13 | 无锡同益汽车动力技术有限公司 | A kind of double spool hot end EGR valve valve seat construction |
-
2000
- 2000-03-11 DE DE10011916A patent/DE10011916A1/en not_active Withdrawn
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015182248A1 (en) * | 2014-05-30 | 2015-12-03 | Toyota Jidosha Kabushiki Kaisha | Supercharged internal combustion engine |
JP2015227626A (en) * | 2014-05-30 | 2015-12-17 | トヨタ自動車株式会社 | Internal combustion engine with turbocharger |
CN106414984A (en) * | 2014-05-30 | 2017-02-15 | 丰田自动车株式会社 | Supercharged internal combustion engine |
CN106414984B (en) * | 2014-05-30 | 2018-09-28 | 丰田自动车株式会社 | Booster-type internal combustion engine |
US10253732B2 (en) | 2014-05-30 | 2019-04-09 | Toyota Jidosha Kabushiki Kaisha | Supercharged internal combustion engine |
DE112015002552B4 (en) | 2014-05-30 | 2022-10-06 | Toyota Jidosha Kabushiki Kaisha | Supercharged internal combustion engine |
CN110230558A (en) * | 2019-06-29 | 2019-09-13 | 无锡同益汽车动力技术有限公司 | A kind of double spool hot end EGR valve valve seat construction |
CN110230558B (en) * | 2019-06-29 | 2024-05-07 | 无锡同益汽车动力技术有限公司 | Valve seat structure of double-valve-core hot-end EGR valve |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8127 | New person/name/address of the applicant |
Owner name: PIERBURG GMBH, 41460 NEUSS, DE |
|
8110 | Request for examination paragraph 44 | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20111001 |