EP1167740A2 - Device for separating fluids - Google Patents

Device for separating fluids Download PDF

Info

Publication number
EP1167740A2
EP1167740A2 EP01112655A EP01112655A EP1167740A2 EP 1167740 A2 EP1167740 A2 EP 1167740A2 EP 01112655 A EP01112655 A EP 01112655A EP 01112655 A EP01112655 A EP 01112655A EP 1167740 A2 EP1167740 A2 EP 1167740A2
Authority
EP
European Patent Office
Prior art keywords
exhaust gas
air intake
flow guide
intake duct
guide body
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
Application number
EP01112655A
Other languages
German (de)
French (fr)
Other versions
EP1167740A3 (en
EP1167740B1 (en
Inventor
Andreas Trawinski
Osman Sari
Franz Bender
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
Publication of EP1167740A2 publication Critical patent/EP1167740A2/en
Publication of EP1167740A3 publication Critical patent/EP1167740A3/en
Application granted granted Critical
Publication of EP1167740B1 publication Critical patent/EP1167740B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/17—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the intake system
    • F02M26/18—Thermal insulation or heat protection
    • 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
    • F02M26/12—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems characterised by means for attaching parts of an EGR system to each other or to engine parts
    • 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
    • F02M26/17—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the intake system
    • F02M26/19—Means for improving the mixing of air and recirculated exhaust gases, e.g. venturis or multiple openings to the intake system
    • 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

Definitions

  • the invention relates to a media separation arrangement for use in a Exhaust gas recirculation device.
  • Exhaust gas recirculation devices are well known. It is in one Air intake duct an exhaust outlet opening that can be closed by a valve body an exhaust gas duct arranged such that generated by the internal combustion engine Exhaust gas in the air intake duct and thus to the intake tracts of the individual Cylinder of the internal combustion engine to reduce the amount of nitrogen oxide Internal combustion engine can be recycled.
  • a direct impact of the hot Exhaust gas from the exhaust duct to the fresh air in the air intake duct can in Connection with that deposited on the duct walls of the air intake duct Liquid such as B. (blowby, condensate, etc.) for the deposition of Pollution particles such as B. Soot on the duct walls of the air intake duct or lead on the valve closing body, which in turn the function of Exhaust gas recirculation device can impair.
  • the invention is therefore based on the object above to avoid the disadvantage mentioned.
  • the flow guide body is an essentially rectangular, bent sheet metal part with molded locking means, which as locking lugs and as Ring insert are formed. This ensures that the Media separation arrangement in the simplest way in the exhaust gas recirculation mixing housing can be used, the flow guide body ensuring that mixing of the Both media exhaust gas and fresh air only take place far behind the valve closing element.
  • FIG. 1 shows a media separation arrangement 1 according to the invention in one perspective view.
  • the media separation arrangement 1 consists essentially of a rectangular, bent sheet metal part 2 and locking lugs 3 and one Ring insert 4, which acts as a latching means in wall areas 5 of an air intake duct 6 (see Fig. 2) until the media separation assembly 1 rotates and is arranged securely in the air intake duct 6.
  • FIG. 2 shows an exhaust gas recirculation device 7 with the media separation arrangement 1 is inserted in the air intake duct by means of the locking means 3, 4 such that the Flow guide body 2 in the region of an outlet opening 8 of an exhaust gas duct is arranged.

Abstract

The media flow separator has a flow guide body (2) and ratchet locks (3,4) to secure it in the wall of the motor intake channel. The flow guide body is a bent and rectangular plate section, with shaped ratchet locks as projecting tabs and a locking ring. The unit is located near the outlet opening of the exhaust gas channel.

Description

Die Erfindung betrifft eine Medientrennanordnung zur Verwendung in einer Abgasrückführeinrichtung.The invention relates to a media separation arrangement for use in a Exhaust gas recirculation device.

Abgasrückführeinrichtungen sind hinlänglich bekannt. Dabei ist in einem Luftansaugkanal eine durch einen Ventilkörper verschließbare Abgasaustrittsöffnung eines Abgaskanals derart angeordnet, dass von der Brennkraftmaschine erzeugtes Abgas in den Luftansaugkanal und damit zu den Ansaugtrakten der einzelnen Zylinder der Brennkraftmaschine zur Verminderung der Stickoxidmenge der Brennkraftmaschine rückgeführt werden kann. Ein direktes Auftreffen des heißen Abgases aus dem Abgaskanal auf die Frischluft im Luftansaugkanal kann in Verbindung mit der an den Kanalwänden des Luftansaugkanals abgesetzten Flüssigkeit wie z. B. (Blowby, Kondensat etc.) zur Ablagerung von Verschmutzungspartikeln wie z. B. Ruß an den Kanalwänden des Luftansaugkanals oder am Ventilschließkörper führen, was wiederum die Funktion der Abgasrückführeinrichtung beeinträchtigen kann.Exhaust gas recirculation devices are well known. It is in one Air intake duct an exhaust outlet opening that can be closed by a valve body an exhaust gas duct arranged such that generated by the internal combustion engine Exhaust gas in the air intake duct and thus to the intake tracts of the individual Cylinder of the internal combustion engine to reduce the amount of nitrogen oxide Internal combustion engine can be recycled. A direct impact of the hot Exhaust gas from the exhaust duct to the fresh air in the air intake duct can in Connection with that deposited on the duct walls of the air intake duct Liquid such as B. (blowby, condensate, etc.) for the deposition of Pollution particles such as B. Soot on the duct walls of the air intake duct or lead on the valve closing body, which in turn the function of Exhaust gas recirculation device can impair.

Hiervon ausgehend liegt der Erfindung daher die Aufgabe zugrunde den oben genannten Nachteil zu vermeiden.Proceeding from this, the invention is therefore based on the object above to avoid the disadvantage mentioned.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass eine Medientrennanordnung zum Einleiten von Abgas in einen Luftansaugkanal mit einem Strömungsleitkörper und mit Rastmitteln, die im Wandbereich des Luftansaugkanals einrastbar sind, vorgesehen sind.This object is achieved in that a Media separation arrangement for introducing exhaust gas into an air intake duct with a Flow guide and with locking means in the wall area of the air intake duct are clickable, are provided.

Auf diese Weise wird eine Trennung von Abgas und Frischluft in verschmutzungskritischen Bereichen des Abgasrückführmischgehäuses erreicht. Die Funktion der mechanischen Bauteile sowie die Abgas- und Frischluftströmungsquerschnitte sind über eine lange Lebensdauer gewährleistet. Dabei ist der Strömungsleitkörper ein im wesentlichen rechteckförmiges, abgebogenes Blechteil mit angeformten Rastmitteln, die als Rastnasen und als Ringeinsatz ausgebildet sind. Auf diese Weise wird gewährleistet, dass die Medientrennanordnung auf einfachste Weise in das Abgasrückführmischgehäuse einsetzbar ist, wobei der Strömungsleitkörper dafür sorgt, dass eine Vermischung der beiden Medien Abgas und Frischluft erst weit hinter dem Ventilschließglied erfolgt.In this way, a separation of exhaust gas and fresh air is in dirt-critical areas of the exhaust gas recirculation mixer housing reached. The Function of the mechanical components as well as the exhaust and Fresh air flow cross sections are guaranteed over a long service life. The flow guide body is an essentially rectangular, bent sheet metal part with molded locking means, which as locking lugs and as Ring insert are formed. This ensures that the Media separation arrangement in the simplest way in the exhaust gas recirculation mixing housing can be used, the flow guide body ensuring that mixing of the Both media exhaust gas and fresh air only take place far behind the valve closing element.

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:

Diese zeigt:

Fig. 1
eine erfindungsgemäße Medientrennanordnung in einer perspektivischen Ansicht,
Fig. 2
eine teilweise geschnittene Abgasrückführeinrichtung mit eingesetzter Medientrennanordnung in einer perspektivischen Ansicht.
This shows:
Fig. 1
a media separation arrangement according to the invention in a perspective view,
Fig. 2
a partially sectioned exhaust gas recirculation device with inserted media separation arrangement in a perspective view.

Figur 1 zeigt eine erfindungsgemäße Medientrennanordnung 1 in einer perspektivischen Ansicht. Die Medientrennanordnung 1 besteht im wesentlichen aus einem rechteckförmigen, abgebogenen Blechteil 2 sowie Rastnasen 3 und einem Ringeinsatz 4, die als Rastmittel derart in Wandbereiche 5 eines Luftansaugkanals 6 (siehe Fig. 2) einrasten, bis die Medientrennanordnung 1 verdreh- und verschiebsicher im Luftansaugkanal 6 angeordnet ist.FIG. 1 shows a media separation arrangement 1 according to the invention in one perspective view. The media separation arrangement 1 consists essentially of a rectangular, bent sheet metal part 2 and locking lugs 3 and one Ring insert 4, which acts as a latching means in wall areas 5 of an air intake duct 6 (see Fig. 2) until the media separation assembly 1 rotates and is arranged securely in the air intake duct 6.

Figur 2 zeigt eine Abgasrückführeinrichtung 7 mit der Medientrennanordnung 1 die mittels der Rastmittel 3,4 derart im Luftansaugkanal eingesetzt ist, dass der Strömungsleitkörper 2 im Bereich einer Austrittsöffnung 8 eines Abgaskanals angeordnet ist. Auf diese Weise wird gewährleistet, dass aus dem Abgaskanal bei geöffnetem Ventilschließglied 9 ausströmendes Abgas nicht direkt mit der im Luftansaugkanal strömenden Frischluft in Kontakt kommt, was zur Verschmutzung von kritischen Teilen wie dem Abgasrückführventil 10 oder dem Querschnitt des Luftansaugkanals 6 führen könnte.FIG. 2 shows an exhaust gas recirculation device 7 with the media separation arrangement 1 is inserted in the air intake duct by means of the locking means 3, 4 such that the Flow guide body 2 in the region of an outlet opening 8 of an exhaust gas duct is arranged. This ensures that from the exhaust duct at open valve closing member 9 not flowing exhaust gas directly with the Air intake duct flowing fresh air comes into contact, causing pollution of critical parts such as the exhaust gas recirculation valve 10 or the cross section of the Air intake duct 6 could lead.

Claims (3)

Medientrennanordnung zur Verwendung in einer Abgasrückführeinrichtung (7) zum Einleiten von Abgas in einen Luftansaugkanal (6) mit einem Strömungsleitkörper (2) und mit Rastmitteln (3,4), die im Wandbereich (5) des Luftansaugkanals (6) einrastbar sind.Media separation arrangement for use in an exhaust gas recirculation device (7) for Introducing exhaust gas into an air intake duct (6) with a flow guide body (2) and with locking means (3, 4) which are located in the wall area (5) of the air intake duct (6) can be snapped into place. Medientrennanordnung nach Anspruch 1, dadurch gekennzeichnet, dass der Strömungsleitkörper (2) ein im wesentlichen rechteckförmiges, abgebogenes Blechteil ist mit angeformten Rastmitteln, die als Rastnasen (3) und als Ringeinsatz (4) ausgebildet sind.Media separation arrangement according to claim 1, characterized in that the flow guide body (2) is a substantially rectangular, bent sheet metal part with molded locking means which are designed as locking lugs (3) and as a ring insert (4). Abgasrückführeinrichtung mit einer Medientrennanordnung nach Anspruch 1 oder 2, die im Luftansaugkanal (6) mittels Rastmitteln (3,4) derart eingesetzt ist, dass der Strömungsleitkörper (2) im Bereich einer Austrittsöffnung (8) eines Abgaskanals angeordnet ist.Exhaust gas recirculation device with a media separation arrangement according to claim 1 or 2, which is inserted in the air intake duct (6) by means of locking means (3, 4) such that the Flow guide body (2) in the area of an outlet opening (8) of an exhaust gas duct is arranged.
EP01112655A 2000-07-01 2001-05-25 Device for separating fluids Expired - Lifetime EP1167740B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10032149A DE10032149A1 (en) 2000-07-01 2000-07-01 Media separation assembly
DE10032149 2000-07-01

Publications (3)

Publication Number Publication Date
EP1167740A2 true EP1167740A2 (en) 2002-01-02
EP1167740A3 EP1167740A3 (en) 2002-12-18
EP1167740B1 EP1167740B1 (en) 2006-07-19

Family

ID=7647518

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01112655A Expired - Lifetime EP1167740B1 (en) 2000-07-01 2001-05-25 Device for separating fluids

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EP (1) EP1167740B1 (en)
DE (2) DE10032149A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4659119A (en) * 1983-12-29 1987-04-21 Dril-Quip, Inc. Latching connector
EP0736683A2 (en) * 1995-04-06 1996-10-09 Robert Bosch Gmbh Device for connecting an exhaust gas recirculation system with an intake system of a combustion engine
US5967121A (en) * 1996-05-25 1999-10-19 Robert Bosch Gmbh Unit and snap-action device therefor

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000161161A (en) * 1998-12-01 2000-06-13 Mitsubishi Engineering Plastics Corp Intake manifold

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4659119A (en) * 1983-12-29 1987-04-21 Dril-Quip, Inc. Latching connector
EP0736683A2 (en) * 1995-04-06 1996-10-09 Robert Bosch Gmbh Device for connecting an exhaust gas recirculation system with an intake system of a combustion engine
US5967121A (en) * 1996-05-25 1999-10-19 Robert Bosch Gmbh Unit and snap-action device therefor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 09, 13. Oktober 2000 (2000-10-13) & JP 2000 161161 A (MITSUBISHI ENGINEERING PLASTICS CORP), 13. Juni 2000 (2000-06-13) *

Also Published As

Publication number Publication date
DE10032149A1 (en) 2002-01-10
EP1167740A3 (en) 2002-12-18
EP1167740B1 (en) 2006-07-19
DE50110483D1 (en) 2006-08-31

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