DE840479C - Device for supplying engine exhaust gases to the fuel-air mixture - Google Patents

Device for supplying engine exhaust gases to the fuel-air mixture

Info

Publication number
DE840479C
DE840479C DEH6198A DEH0006198A DE840479C DE 840479 C DE840479 C DE 840479C DE H6198 A DEH6198 A DE H6198A DE H0006198 A DEH0006198 A DE H0006198A DE 840479 C DE840479 C DE 840479C
Authority
DE
Germany
Prior art keywords
carburetor
exhaust gases
fuel
air mixture
supply line
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
Application number
DEH6198A
Other languages
German (de)
Inventor
Werner Dipl-Ing Hartenstein
Kurt Dipl-Ing Schif
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.)
HIRTH LANDMASCHINEN und MOTORE
Original Assignee
HIRTH LANDMASCHINEN und MOTORE
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 HIRTH LANDMASCHINEN und MOTORE filed Critical HIRTH LANDMASCHINEN und MOTORE
Priority to DEH6198A priority Critical patent/DE840479C/en
Application granted granted Critical
Publication of DE840479C publication Critical patent/DE840479C/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/52Systems for actuating EGR valves
    • F02M26/63Systems for actuating EGR valves the EGR valve being directly controlled by an operator
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/14Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the exhaust system
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/17Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the intake system
    • F02M26/19Means for improving the mixing of air and recirculated exhaust gases, e.g. venturis or multiple openings to the intake system
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/65Constructional details of EGR valves
    • F02M26/70Flap valves; Rotary valves; Sliding valves; Resilient valves

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of The Air-Fuel Ratio Of Carburetors (AREA)

Description

@ian hat bereits vorgeschlagen, die Klopfneigung eines Kraftstoff-Luftgemisches in Ottomotoren dadurch herabzusetzen, daß man diesem Gemisch \lotorenabgase beimengt. Hierbei hat man jedoch die Tatsache, daß die Abgase eine erhebliche \\"äriiieinenge mitführen, nicht ausgenutzt, im Gegenteil wurden häufiger besondere Vorrichtungen zum Kühlen der Abgase zwischengeschaltet.@ian has already suggested the knock tendency of a fuel-air mixture in gasoline engines by adding engine exhaust gases to this mixture. Here, however, one has the fact that the exhaust gases are of a considerable amount carry along, not used, on the contrary, special devices were more common interposed to cool the exhaust gases.

Die Erfindung geht von der Erkenntnis aus, daß es in sehr vielen Fällen, insbesondere bei Verwendung höher siedender Kraftstoffe in Ottomotoren, z. B. Traktorenkraftstoff, sehr wertvoll sein kann, die von den Abgasen mitgeführte Wärmemenge möglichst weitgehend auszunutzen. Es hat sich ergeben, daß dies besonders wirkungsvoll in der Weise geschehen kann, wenn man gemäß der Erfindung die Zufuhrleitung für die Abgase in den Vergaser einmünden läßt. Hierdurch wird eine Vorwärmung des Vergasers erzielt, die sich bei der Aufbereitung schwer siedender Kraftstoffe günstig auswirkt. Die beste `Virkung erzielt man wohl, wenn man die Zufuhrleitung so in den Vergaser einführt, daß die aus ihr austretenden Abgase unmittelbar die Vergaserdüsen beaufschlagen und dadurch erwärmen.The invention is based on the knowledge that in very many cases, especially when using higher-boiling fuels in gasoline engines, e.g. B. tractor fuel, The amount of heat carried along by the exhaust gases can be very valuable as much as possible to take advantage of. It has been found to be particularly effective in doing this can if, according to the invention, the feed line for the exhaust gases in the carburetor can flow into. This preheating of the carburetor is achieved, which is at the processing of high-boiling fuels has a beneficial effect. The best effect is achieved by introducing the supply line into the carburetor in such a way that the from it exiting exhaust gases directly act on the carburetor nozzles and thereby heat.

In der Zeichnung ist ein Ausführungsbeispiel der Erfindung schematisch dargestellt, und zwar zeigt Fig. i das Schema einer Gesamtanlage eines Ottomotors mit der neuen Einrichtung, Fig. 2 eine Darstellung des in Fig. i erkennbaren Umstellhahns allein, jedoch in anderer Halmstellung, Fig.3 in vergrößerter Darstellung einen Schnitt durch den die Vergaserdüsen enthaltenden Teil, Fig. 4 einen Schnitt längs der Durchflußachse eines Zwischenflansches und Fig. 5 eine Stirnansicht gegen diesen Flansch, von (lern die Zufuhrleitung ausgeht.An exemplary embodiment of the invention is shown schematically in the drawing shown, namely Fig. i shows the scheme of an overall system of a gasoline engine with the new device, FIG. 2 shows a representation of the reversing valve that can be seen in FIG alone, but in a different stalk position, FIG. 3 in an enlarged view Section through the part containing the carburetor nozzles, FIG. 4 is a longitudinal section the flow axis of an intermediate flange and FIG. 5 is an end view against this Flange, from (learn the supply line starts.

Der in der Schemadarstellung nach Fig. i innerhalb des gestrichelten Rahmens i in zwei Teilen dargestellte Vergaser weist in der Brennstoffzuleitung 2 den üblichen Schwimmer 3 mit Schwimmerventil 4 auf. Bei 5 ist ein Brennstoffablaßhahn dargestellt. Die durch das Rohr 6 zutretende Frischluft saugt aus den in Fig. i durch eine einzige Düse 7 nur schematisch angedeuteten Düsen eines Düsensatzes Brennstoff an. Zur Veränderung des Brennstoff-Luftgemisclies ist ein zylindrischer Schieber 8 vorgesehen, der durch das Gestänge 9 willkürlich im Sinne einer Veränderung des Durchlaßquerschnitts des Vergasers verstellt werden kann. Der Schieber ist dabei oberhalb der Enddüse 7 (Fig.3) konzentrisch zu dieser angeordnet. Ein im unteren Schieberteil angebrachter Schlitz 81 sorgt dafür, daß auch bei vollständig abgesenktem Schieber noch ein diesem Schlitz entsprechender Durchlaßquerschnitt verbleibt und die durch ihn strömende Luft aus der letzten Düse 7 den erforderlichen Brennstoff ansaugt. Im übrigen sind die drei Düsen, wie in Fig. 3 gezeigt, in einer Linie hintereinander aufgestellt. Die Zuleitung io für Motorenabgase mündet dabei so in das Vergasergehäuse, daß die aus ihr austretenden Gase auf die Düsen 7 auftreffen und diese entsprechend aufheizen. Vom Vergaser gelangt das Kraftstoff-Luft-Abgasgemisch durch den Ansaugstutzen ii des Motorzylinders 12 in den Motor, dessen Kurbelgehäuse mit 13 bezeichnet ist, während die Bezugszeichen 14 die Pleuelstange, 15 den Kolben und 16 die Zündkerze kennzeichnen. An den Abgasstutzen 17 des Motorzylinders 12 ist ein Zwischenflansch 18 angeschlossen, in den der Anfang der Abgasleitung io windhutzenartig hineinragt. An den Zwischenflansch 18 ist dann der Schalldämpfer i9 für den Auslaß der Abgase angeschlossen.In the schematic representation of FIG. I within the dashed line Frame i shown in two parts carburetor points in the fuel supply line 2 the usual float 3 with float valve 4. At 5 is a fuel drain cock shown. The fresh air entering through the pipe 6 sucks out of the in Fig. I by a single nozzle 7 only schematically indicated nozzles of a nozzle set fuel at. A cylindrical slide is used to change the fuel-air mixture 8 provided, which by the linkage 9 arbitrarily in the sense of a change in the The passage cross section of the carburetor can be adjusted. The slide is there Above the end nozzle 7 (Fig. 3) arranged concentrically to this. One in the lower Slit 81 attached to the slider ensures that even when it is completely lowered Slider still remains a passage cross-section corresponding to this slot and the air flowing through it from the last nozzle 7 provides the required fuel sucks. Incidentally, as shown in Fig. 3, the three nozzles are in a line one behind the other set up. The line io for engine exhaust flows into the carburetor housing, that the gases emerging from it impinge on the nozzles 7 and these accordingly Warm up. The fuel-air-exhaust gas mixture comes from the carburetor through the intake manifold ii of the engine cylinder 12 in the engine, the crankcase of which is denoted by 13, while the reference numerals 14 the connecting rod, 15 the piston and 16 the spark plug mark. There is an intermediate flange on the exhaust port 17 of the engine cylinder 12 18 connected, into which the beginning of the exhaust pipe protrudes like a wind scoop. On the intermediate flange 18 is then the silencer i9 for the outlet of the exhaust gases connected.

In Fig. 4 und 5 ist der Zwischenflansch 18 im Achsschnitt und in Stirnansicht noch einmal deutlich dargestellt, wobei die beiden Stirnscheiben 181 im Bereich der Befestigungslöcher iS2 durch Rohrstücke 183 verbunden sind, welche die Befestigungsschrauben umschließen. Die Stirnscheiben 181 sind dabei von einem gemeinsamen Mantel i84 umgeben. Die beiden Figuren zeigen, wie das gekrümmte Einlaßende der Leitung io so weit in den Zwischenflansch 18 hineinragt, daß das Ende windhutzenartig im Bereich der Durchgangslöcher 185 der Scheiben 181 liegt.In Fig. 4 and 5, the intermediate flange 18 is in axial section and in front view once again clearly shown, with the two end disks 181 in the area the fastening holes iS2 are connected by pipe sections 183 which hold the fastening screws enclose. The end disks 181 are surrounded by a common jacket i84. The two figures show how the curved inlet end of the conduit io so far in the intermediate flange 18 protrudes so that the end like a wind scoop in the area of the through holes 185 of the disks 181 is located.

Die Zuleitung io geht, wie aus Fig. i zu ersehen, über einen Hahn i9, der durch ein Gestänge 2o verstellt werden kann. Bei der in Fig. i dargestellten Hahn- und Gestängestellung ist die Leitung io voll aufgesteuert, so daß die Höchstmenge an Verbrennungsgasen dem Vergaser zugeführt wird. In Fig. 2 ist die andere Endstellung des Hahns zu erkennen, bei der die Leitung io vollständig geschlossen ist. Es ist selbstverständlich auch möglich, ein anderes Organ zum Schließen der Leitung io zu verwenden, das den Durchlaßquerschnitt dieser Leitung nur allmählich drosselt und dadurch die dem Vergaser zugeführte Abgasmenge kontinuierlich zu verändern gestattet.The supply line io goes, as can be seen from Fig. I, via a tap i9, which can be adjusted by a rod 2o. In the one shown in Fig. I The line io is fully opened with the tap and linkage, so that the maximum amount of combustion gases is fed to the carburetor. In Fig. 2 is the other end position of the tap, in which the line io is completely closed. It is Of course, it is also possible to use another organ to close the line io to use, which throttles the passage cross section of this line only gradually and thereby allows the amount of exhaust gas supplied to the carburetor to be continuously changed.

Claims (5)

PATENTANSPRÜCHE: i. Vorrichtung zum Zuführen von Motorenabgasen zum Kraftstoff-Luftgemisch, dadurch gekennzeichnet, daß die Zufuhrleitung für die Abgase in den Vergaser einmündet. PATENT CLAIMS: i. Device for supplying engine exhaust gases to the fuel-air mixture, characterized in that the supply line for the exhaust gases opens into the carburetor. 2. Vorrichtung nach Anspruch i, dadurch gekennzeichnet, daß die Zufuhrleitung so in den Vergaser einmündet, daß die aus ihr austretenden Abgase die Vergaserdüsen beaufschlagen. 2. Device according to claim i, characterized in that that the supply line opens into the carburetor so that the exit from it Exhaust gases pressurize the carburetor nozzles. 3. Vorrichtung nach Anspruch i und 2, dadurch gekennzeichnet, daß die zum Vergaser geführte Abgasmenge regelbar ist. 3. Apparatus according to claim i and 2, characterized characterized in that the amount of exhaust gas fed to the carburetor can be regulated. 4. Vorrichtung nach Anspruch i bis 3, dadurch gekennzeichnet, daß für die Regelung der Abgasmenge ein fernbetätigtes Ventil vorgesehen ist. 4. Device according to claims i to 3, characterized in that for regulating the amount of exhaust gas a remotely operated valve is provided. 5. Vorrichtung nach Anspruch i, dadurch gekennzeichnet, daß der Anfang der Zufuhrleitung windhutzenartig in einen zwischen Abgasstutzen des Motors und anschließende Abgasleitung einschaltbaren Zwischenflansch hineinragt. Angezogene Druckschriften Deutsche Patentschrift Nr. 463 919.5. Apparatus according to claim i, characterized characterized in that the beginning of the supply line in a windshield-like manner in between Exhaust pipe of the engine and subsequent exhaust pipe switchable intermediate flange protrudes. Cited publications German patent specification No. 463 919.
DEH6198A 1950-10-03 1950-10-03 Device for supplying engine exhaust gases to the fuel-air mixture Expired DE840479C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEH6198A DE840479C (en) 1950-10-03 1950-10-03 Device for supplying engine exhaust gases to the fuel-air mixture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH6198A DE840479C (en) 1950-10-03 1950-10-03 Device for supplying engine exhaust gases to the fuel-air mixture

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DE840479C true DE840479C (en) 1952-06-03

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DEH6198A Expired DE840479C (en) 1950-10-03 1950-10-03 Device for supplying engine exhaust gases to the fuel-air mixture

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3309351A1 (en) * 1983-03-16 1983-09-08 Karl Dipl.-Ing. 7000 Stuttgart Huber Emission control device for combustion engines
WO1994016207A1 (en) * 1993-01-04 1994-07-21 Orbital Engine Company (Australia) Pty. Ltd. Exhaust gas recirculation in a two stroke engine
FR2889246A1 (en) * 2005-07-29 2007-02-02 Renault Sas Internal combustion engine for motor vehicle, has exhaust circuit comprising pulse type exhaust gas collector favoring formation of pressure waves generated by exhaust puff and fluid flow of exhaust gas in recirculating circuit
EP1957783A1 (en) * 2005-11-29 2008-08-20 Volvo Lastvagnar AB Exhaust gas recirculation mixer for a turbo-charged internal combustion engine
EP2151569A1 (en) * 2008-08-06 2010-02-10 Wärtsilä Switzerland Ltd. Device for removing a waste gas partial stream and combustion engine with this device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE463919C (en) * 1922-03-02 1928-08-06 William Phillips Deppe Method and device for producing a gas mixture for internal combustion engines

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE463919C (en) * 1922-03-02 1928-08-06 William Phillips Deppe Method and device for producing a gas mixture for internal combustion engines

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3309351A1 (en) * 1983-03-16 1983-09-08 Karl Dipl.-Ing. 7000 Stuttgart Huber Emission control device for combustion engines
WO1994016207A1 (en) * 1993-01-04 1994-07-21 Orbital Engine Company (Australia) Pty. Ltd. Exhaust gas recirculation in a two stroke engine
US5558070A (en) * 1993-01-04 1996-09-24 Orbital Engine Company (Australia) Pty. Limited Exhaust gas recirculation in a two stroke engine
FR2889246A1 (en) * 2005-07-29 2007-02-02 Renault Sas Internal combustion engine for motor vehicle, has exhaust circuit comprising pulse type exhaust gas collector favoring formation of pressure waves generated by exhaust puff and fluid flow of exhaust gas in recirculating circuit
EP1957783A1 (en) * 2005-11-29 2008-08-20 Volvo Lastvagnar AB Exhaust gas recirculation mixer for a turbo-charged internal combustion engine
EP1957783A4 (en) * 2005-11-29 2011-10-12 Volvo Lastvagnar Ab Exhaust gas recirculation mixer for a turbo-charged internal combustion engine
EP2151569A1 (en) * 2008-08-06 2010-02-10 Wärtsilä Switzerland Ltd. Device for removing a waste gas partial stream and combustion engine with this device

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