DE4106499C1 - IC engine with exhaust gas analysis - draws of gas through line used for air injection - Google Patents

IC engine with exhaust gas analysis - draws of gas through line used for air injection

Info

Publication number
DE4106499C1
DE4106499C1 DE4106499A DE4106499A DE4106499C1 DE 4106499 C1 DE4106499 C1 DE 4106499C1 DE 4106499 A DE4106499 A DE 4106499A DE 4106499 A DE4106499 A DE 4106499A DE 4106499 C1 DE4106499 C1 DE 4106499C1
Authority
DE
Germany
Prior art keywords
line
exhaust gas
exhaust
air injection
connection
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.)
Expired - Lifetime
Application number
DE4106499A
Other languages
German (de)
Inventor
Hans Dieter 8000 Muenchen De Wacker
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke AG
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 Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Priority to DE4106499A priority Critical patent/DE4106499C1/en
Application granted granted Critical
Publication of DE4106499C1 publication Critical patent/DE4106499C1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
    • F02F1/4264—Shape or arrangement of intake or exhaust channels in cylinder heads of exhaust channels
    • 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
    • F01N3/24—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 constructional aspects of converting apparatus
    • F01N3/30—Arrangements for supply of additional air
    • F01N3/34—Arrangements for supply of additional air using air conduits or jet air pumps, e.g. near the engine exhaust port
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F2001/244—Arrangement of valve stems in cylinder heads
    • F02F2001/247—Arrangement of valve stems in cylinder heads the valve stems being orientated in parallel with the cylinder axis
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Testing Of Engines (AREA)
  • Exhaust Silencers (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

The cylinder head exhaust duct incorporates a line used to control air injection into the exhaust. With air feed off, the line (3, 4) should form an exhaust line leading to a special connection (5) used for exhaust gas analysis. Pref. a T-piece (6) to be joined to the line (4 or 3) contains the measuring connection (5) and air blower connection (7). USE/ADVANTAGE - IC engine. Exhaust gas analysis involves fewer connections by using air injection line when air is off.

Description

Die Erfindung betrifft ein Brennkraftmaschinen­ gehäuse mit den im Oberbegriff des Patentanspruchs 1 angegebenen Merkmalen.The invention relates to an internal combustion engine Housing with the in the preamble of claim 1 specified features.

Die DE-PS 22 18 819 zeigt und beschreibt für eine Brenn­ kraftmaschine einen Zylinderkopf mit einem integrierten Luftkanal, der über eine gesondert angeordnete Leitung bzw. Düse mit dem jeweiligen Auspuffkanal zur Luftein­ blasung in Verbindung steht. Weiter ist aus der DE-OS 22 22 015 durch die Fig. 23 und der zugehörigen Beschreibung bekannt, den im Zylinderkopf integrierten Luftkanal mit den jeweiligen Auspuffkanälen über im Zylinderkopf als Stichkanäle vorgesehene Leitungen zu verbinden.DE-PS 22 18 819 shows and describes for an internal combustion engine a cylinder head with an integrated air duct, which is connected via a separately arranged line or nozzle to the respective exhaust duct for blowing air. Furthermore, it is known from DE-OS 22 22 015 from FIG. 23 and the associated description to connect the air duct integrated in the cylinder head to the respective exhaust ducts via lines provided in the cylinder head as branch ducts.

Auch ist es bei Brennkraftmaschinen mit in den End­ bereichen der Abgasanlagen angeordneten Abgasnachbehand­ lungseinrichtungen bekannt, stromauf dieser Einrichtungen die Abgasleitungen mit Meß-Anschlüssen auszurüsten, um mittels anschließbarer Meßeinrichtungen die Abgasqualität der Brennkraftmaschine überprüfen zu können. Die Meß- Anschlüsse sind entweder unmittelbar an den Abgasleitun­ gen angeordnet oder an den freien Enden fest mit den Abgasleitungen verbundener Rohrleitungen. Nachteilig hierbei ist der bauliche Aufwand sowie insbesondere die durch Verzunderung gegebene schwierige Handhabung der für die Meß-Anschlüsse vorgesehenen Verschlußvorrichtungen. Bei stark verzunderten Verschlußvorrichtungen kann der Austausch eines Abgasleitungsteils erforderlich werden.It is also in the end with internal combustion engines areas of the exhaust systems arranged exhaust aftertreatment lungseinrichtung known, upstream of these facilities equip the exhaust pipes with measuring connections in order to the exhaust gas quality by means of connectable measuring devices to be able to check the internal combustion engine. The measuring Connections are either directly to the exhaust pipe arranged or fixed at the free ends with the Exhaust pipes of connected pipes. Disadvantageous  here is the structural effort and in particular the difficult handling due to scaling the measuring connections provided locking devices. With strongly scaled closure devices, the Replacement of an exhaust pipe part may be necessary.

Der Erfindung liegt die Aufgabe zugrunde, mit geringstem Bauaufwand die Anzahl der Meß-Anschlüsse zu reduzieren und eine die Handhabung eines Meß-Anschlusses erleichternde Anordnung aufzuzeigen.The invention has for its object with minimal construction to reduce the number of measuring connections and one the Arrangement facilitating handling of a measuring connection to show.

Diese Aufgabe wird erfindungsgemäß bei einem nach dem Oberbegriff des Patentanspruchs 1 gestalteten Brennkraftmaschinengehäuse dadurch gelöst, daß die Leitung bei abgesteuerter Luft­ förderung als Abgaszuführ-Leitung zu einem gesonderten Anschluß für eine Abgasmeßeinrichtung dient.This object is achieved according to the preamble of Claim 1 designed internal combustion engine housing solved in that the line with the air turned off promotion as an exhaust gas supply line to a separate Connection for an exhaust gas measuring device is used.

Bei einer bevorzugten Ausgestaltung gemäß Anspruch 2 weist ein mit der Leitung ver­ bindbares T-Stück einen Meßanschluß und einen Lufteinblase-Anschluß auf.In a preferred embodiment according to claim 2, a ver with the line bindable T-piece a measuring connection and one Air inlet connection.

Mit der erfindungsgemäßen Mehrfachnutzung einer gegebenen Einrichtung wird die Anzahl der Meß-Anschlüsse mit geringstem Bauaufwand reduziert, wobei mit der Verwendung einer Lufteinblase-Leitung als Abgaszuführ-Leitung zu einem gesonderten Meß-Anschluß im Bereich eines Lufteinblase-Anschlusses die Handhabung der für den Meß- Anschluß vorgesehenen Verschlußeinrichtung mangels Beauf­ schlagung durch hohe Abgastemperaturen problemfrei ist.With the multiple use of a given The number of measuring connections is set up with reduced construction costs, with the use an air injection line as an exhaust gas supply line a separate measuring connection in the area of a Air inlet connection the handling of the for the Connection provided locking device due to lack of Beauf impact through high exhaust gas temperatures is problem-free.

Ein bevorzugtes Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt.A preferred embodiment of the invention is in shown in the drawing.

Ein lediglich abschnittsweise und geschnitten darge­ stellter Zylinderkopf 1 einer nicht gezeigten mehrzylind­ rigen Brennkraftmaschine weist Auspuffkanäle 2 auf. In die Auspuffkanäle 2 ist jeweils eine Leitung 3 gerichtet, wobei die Leitungen 3 mit einer im Zylinderkopf 1 inte­ grierten Verteil-Leitung 4 in Verbindung stehen. Die Leitungen 4 und 3 dienen der gesteuerten Lufteinblasung in das Abgas der Auspuffkanäle 2.A section and cut Darge presented cylinder head 1 of a multi-cylinder internal combustion engine, not shown, has exhaust ports 2 . In each of the exhaust ducts 2 , a line 3 is directed, the lines 3 being connected to an integrated distribution line 4 in the cylinder head 1 . Lines 4 and 3 are used for the controlled air injection into the exhaust gas of the exhaust ducts 2 .

Die Lufteinblas-Leitungen 3 und 4 dienen bei abgesteuer­ ter, d. h. unterbrochener Luftförderung als Abgaszuführ- Leitungen zu einem gesonderten Anschluß 5 für eine (nicht gezeigte) Abgasmeßeinrichtung.The air injection lines 3 and 4 serve at abteuer ter, ie interrupted air delivery as exhaust gas supply lines to a separate connection 5 for an (not shown) exhaust gas measuring device.

Eine baulich einfache Ausgestaltung ist mit einem mit den Leitungen 3 und 4 verbindbaren T-Stück 6 erzielt, das sowohl den Meß-Anschluß 5 als auch einen Lufteinblase- Anschluß 7 aufweist. Das im Zylinderkopf 1 fixierte T-Stück 6 kann lufteinblaseseitig mit einem Rückschlag­ ventil 8 ausgerüstet sein. Der Meß-Anschluß 5 ist mittels eines Schraubbolzens 9 unter Zwischenlage einer Ringdich­ tung 10 verschließbar.A structurally simple configuration is achieved with a T-piece 6 which can be connected to the lines 3 and 4 and which has both the measuring connection 5 and an air injection connection 7 . The T-piece 6 fixed in the cylinder head 1 can be equipped with a non-return valve 8 on the air injection side. The measuring connection 5 can be closed by means of a screw bolt 9 with the interposition of a ring seal 10 .

Claims (2)

1. Brennkraftmaschinengehäuse, insbesondere Zylinder­ kopf, mit einer in einem Auspuffkanal (2) gerichteten Leitung (3 und 4) zur gesteuerten Lufteinblasung in das Abgas, dadurch gekennzeichnet, daß die Leitung (3 und 4) bei abgesteuerter Luft­ förderung als Abgaszuführ-Leitung zu einem gesonder­ ten Anschluß (5) für eine Abgasmeßeinrichtung dient.1. Internal combustion engine housing, in particular cylinder head, with an in an exhaust duct ( 2 ) directed line ( 3 and 4 ) for controlled air injection into the exhaust gas, characterized in that the line ( 3 and 4 ) promotion with exhausted air as an exhaust gas supply line a special th connection ( 5 ) is used for an exhaust gas measuring device. 2. Brennkraftmaschinengehäuse nach Anspruch 1, dadurch gekennzeichnet, daß ein mit der Leitung (3 und 4) verbindbares T-Stück (6) den Meß-Anschluß (5) und einen Lufteinblase-Anschluß (7) aufweist.2. Internal combustion engine housing according to claim 1, characterized in that a with the line ( 3 and 4 ) connectable T-piece ( 6 ) has the measuring connection ( 5 ) and an air injection connection ( 7 ).
DE4106499A 1991-03-01 1991-03-01 IC engine with exhaust gas analysis - draws of gas through line used for air injection Expired - Lifetime DE4106499C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE4106499A DE4106499C1 (en) 1991-03-01 1991-03-01 IC engine with exhaust gas analysis - draws of gas through line used for air injection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4106499A DE4106499C1 (en) 1991-03-01 1991-03-01 IC engine with exhaust gas analysis - draws of gas through line used for air injection

Publications (1)

Publication Number Publication Date
DE4106499C1 true DE4106499C1 (en) 1992-03-19

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2738288A1 (en) * 1995-08-30 1997-03-07 Daimler Benz Ag CYLINDER HEAD FOR AN INTERNAL COMBUSTION ENGINE COOLED BY LIQUID AND HAVING MULTIPLE CYLINDERS
EP1101921A3 (en) * 1999-11-17 2002-05-02 Bayerische Motoren Werke Aktiengesellschaft Cylinder head for a multi-cylinder in-line combustion engine having a secondary air supply system
DE102007020927A1 (en) * 2007-05-04 2008-11-06 GM Global Technology Operations, Inc., Detroit Cylinder head and manufacturing process for a cylinder head

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2222015A1 (en) * 1972-04-13 1973-10-31 Questor Corp SYSTEM AND DEVICE FOR PROCESSING AND TREATMENT OF EXHAUST GASES

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2222015A1 (en) * 1972-04-13 1973-10-31 Questor Corp SYSTEM AND DEVICE FOR PROCESSING AND TREATMENT OF EXHAUST GASES

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2738288A1 (en) * 1995-08-30 1997-03-07 Daimler Benz Ag CYLINDER HEAD FOR AN INTERNAL COMBUSTION ENGINE COOLED BY LIQUID AND HAVING MULTIPLE CYLINDERS
EP1101921A3 (en) * 1999-11-17 2002-05-02 Bayerische Motoren Werke Aktiengesellschaft Cylinder head for a multi-cylinder in-line combustion engine having a secondary air supply system
DE102007020927A1 (en) * 2007-05-04 2008-11-06 GM Global Technology Operations, Inc., Detroit Cylinder head and manufacturing process for a cylinder head
CN101333974B (en) * 2007-05-04 2013-11-06 Gm全球科技运作股份有限公司 Cylinder head and production method for a cylinder head

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Legal Events

Date Code Title Description
8100 Publication of the examined application without publication of unexamined application
D1 Grant (no unexamined application published) patent law 81
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee