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 fitted

Info

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Withdrawn
Application number
DE10011916A
Other languages
German (de)
Inventor
Guido Barabasch
Andreas Koester
Heinrich Dismon
Matthias Hullmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pierburg GmbH
Original Assignee
Pierburg GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Pierburg GmbH filed Critical Pierburg GmbH
Priority to DE10011916A priority Critical patent/DE10011916A1/en
Publication of DE10011916A1 publication Critical patent/DE10011916A1/en
Withdrawn legal-status Critical Current

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

Abstract

The exhaust gas feed-back body has a housing in which a valve rod is displaceably arranged, on which at least one valve head is fitted. The valve head (4) has a solid material valve closure part (6), and a hollow valve guide component (7). The valve guide component is a blunt conical plate deep drawn part. It is pressed onto the valve rod (3) and additionally is welded to it.

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)

1. Abgasrückführventilkörper mit einem Gehäuse, in dem eine Ventilstange verschiebbar angeordnet ist, wobei auf der Ventilstange zumindest ein Ventilkopf angeordnet ist, dadurch gekennzeichnet, daß der Ventilkopf 4 ein aus Vollmaterial bestehendes Ventilschließteil 6 und ein hohles Ventilleitelement 7 aufweist.1. Exhaust gas recirculation valve body with a housing in which a valve rod is arranged displaceably, at least one valve head being arranged on the valve rod, characterized in that the valve head 4 has a valve closing part 6 made of solid material and a hollow valve guide element 7 . 2. Abgasrückführventilkörper nach Anspruch 1, dadurch gekennzeichnet, daß das Ventilleitelement 7 ein kegelstumpfförmiges Blechtiefziehteil ist.2. Exhaust gas recirculation valve body according to claim 1, characterized in that the valve guide element 7 is a frustoconical sheet metal deep-drawn part. 3. Abgasrückführventilkörper nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Ventilleitelement 7 auf die Ventilstange 3 aufgepreßt ist und zusätzlich mit dieser verschweißt ist.3. Exhaust gas recirculation valve body according to claim 1 or 2, characterized in that the valve guide element 7 is pressed onto the valve rod 3 and is additionally welded to it.
DE10011916A 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 Withdrawn DE10011916A1 (en)

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 (3)

* Cited by examiner, † Cited by third party
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
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

Cited By (8)

* Cited by examiner, † Cited by third party
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