EP0289701A2 - Multicylinder turbo-compressed engine with external ignition - Google Patents

Multicylinder turbo-compressed engine with external ignition Download PDF

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Publication number
EP0289701A2
EP0289701A2 EP88101458A EP88101458A EP0289701A2 EP 0289701 A2 EP0289701 A2 EP 0289701A2 EP 88101458 A EP88101458 A EP 88101458A EP 88101458 A EP88101458 A EP 88101458A EP 0289701 A2 EP0289701 A2 EP 0289701A2
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EP
European Patent Office
Prior art keywords
charge air
combustion engine
internal combustion
distributor
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.)
Granted
Application number
EP88101458A
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German (de)
French (fr)
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EP0289701A3 (en
EP0289701B1 (en
Inventor
Staas Dipl.-Ing. Gietzen
Michael Beer
Klaus Dipl.-Ing. Hain
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Dr Ing HCF Porsche AG
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Dr Ing HCF Porsche AG
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Publication of EP0289701A2 publication Critical patent/EP0289701A2/en
Publication of EP0289701A3 publication Critical patent/EP0289701A3/en
Application granted granted Critical
Publication of EP0289701B1 publication Critical patent/EP0289701B1/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
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P7/00—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices
    • F02P7/02—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices of distributors
    • F02P7/04—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices of distributors having distributors with air-tight casing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P7/00—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices
    • F02P7/02—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices of distributors
    • F02P7/021—Mechanical distributors

Definitions

  • the invention relates to a spark-ignited multi-cylinder internal combustion engine with turbocharger according to the preamble of claim 1.
  • the inlet pressure to the distributor housing is already above sea level at sea level. This pressure difference ensures that a good flow through the ignition distributor is ensured.
  • the distributor housing is arranged in a bypass line to the charge air cooler in such a way that the charge air branched off in front of the charge air cooler flows back into the charge air line after flowing through the distributor housing behind the charge air cooler.
  • the pressure difference at the charge air cooler is available for the flow. If the charge pressure is kept constant regardless of the geodetic height in order to ensure constant performance of the internal combustion engine at all flight altitudes, the air density in the distributor housing also has a constantly high value; Arcing from one contact point to another can be avoided in this way.
  • An exhaust pipe 2 leads from the cylinder head 1 of an internal combustion engine to the turbine 3 of an exhaust gas turbocharger 4 and from there, after flowing through it, to the outside via a silencer 5.
  • Parallel to the turbine 3 is a bypass line 6, into which a bypass valve 7 is inserted, via which, depending on its position, more or less exhaust gas gets into the muffler 5 without acting on the turbine 3.
  • the turbine 3 drives a compressor 8, with which air is sucked in from an air filter 9 and conveyed into a charge air line 10 while increasing the pressure.
  • the charge air line 10 leads via a charge air cooler 11 to an air quantity meter 12 controlling an injection system and from there to the cylinder head 1 of the internal combustion engine.
  • a ventilation line 13 branches off from the charge air line 10 in front of the charge air cooler 11 and is divided into lines 14 and 15 that are parallel in terms of flow and is then continued in a common line 16.
  • the line 16 opens in the flow direction behind the charge air cooler 11 into the charge air line 10 and forms a bypass line to the charge air cooler 11 together with the ventilation line 13 housing 19 of a second distributor 20 used.
  • Two ignition distributors are required if double ignition is used, as prescribed for aircraft engines.
  • the design of an ignition distributor 18 is shown schematically in FIG. 2.
  • the horizontal distributor housing 17 installed with a horizontal axis is closed by a flange-mounted distributor cap 21.
  • the ignition distributor 18 for a 6-cylinder internal combustion engine contains six Zind electrodes 22 and a center electrode 23 in the bottom of the distributor flap 21, which contacts an electrode 25 attached to the distributor shaft 24.
  • the distributor shaft 24 is driven by the internal combustion engine via a gearwheel 26 and, via the rotating electrode 25, outputs the high voltage generated by the ignition coil (not shown) in the rhythm of the firing order of the cylinders via the ignition electrodes 22 to the spark plugs of the cylinders.
  • the ozone that arises when the high-voltage current is interrupted by sparking is removed from the distributor housing 17 by introducing charge air.
  • the line 14 is screwed to the underside 27 of the distributor housing 17 with a nut 28 and goes off at the top 29 of the distributor housing.
  • the distributor housing 17 is rinsed through, the water that collects on the underside 27 is also entrained and removed from the distributor housing 17.
  • the lubricating oil system consists of a supply line 30 through which lubricating oil is conveyed from a container 32 to the crankcase 33 of the internal combustion engine and distributed to its lubrication points by means of an oil pump 31, and a first return line 35 containing an oil cooler 34 from the crankcase 33 to the container 32.
  • a second return line 36 also leads from the cylinder head 1 via a throttle 37 and an auxiliary oil pump 38 to the tank 32.
  • a pressure line 38 to the bypass valve 7 is connected to this second return line 36 before the throttle 37.
  • a return line 39 leading from the bypass valve 7 opens into the first return line 35 and is controlled by a pressure regulator 40 inserted therein, which in turn is pneumatically controlled by the pressure difference prevailing at the throttle valve 41.

Abstract

Im Zündverteiler einer Brennkraftmaschine entstehen beim Unterbrechen des Hochspannungsstromes Funken, die zur Bildung von Ozon führen. Um dieses starke Oxidation und Korrosion verursachende Ozon rasch aus dem Zündverteiler zu entfernen, ist das Verteilergehäuse an die vom Turbolader zum Zylinderkopf der Brennkraftmaschine führende Ladeluftleitung angeschlossen und von Ladeluft durchspült.When the high-voltage current is interrupted, sparks are generated in the ignition distributor of an internal combustion engine and lead to the formation of ozone. In order to quickly remove this strong oxidation and corrosion-causing ozone from the ignition distributor, the distributor housing is connected to the charge air line leading from the turbocharger to the cylinder head of the internal combustion engine and flushed with charge air.

Description

Die Erfindung betrifft eine fremdgezündete Mehrzylinder-Brennkraftmaschine mit Turbolader nach dem Oberbegriff des Anspruchs 1.The invention relates to a spark-ignited multi-cylinder internal combustion engine with turbocharger according to the preamble of claim 1.

Im Zündverteiler einer Brennkraftmaschine entstehen beim Unterbrechen des Hochspannungstromes Funken, die zur Bildung von Ozon und Stickoxid führen. Das Ozon hat eine starke Oxidationswirkung und verursacht bei längerer Einwirkung Korrosionen an den elektrischen Kontakten und sonstigen Metall­teilen des Zündverteilers. Auch die Alterung des Schmierfetts an den Lagerstellen des Zündverteilers wird durch Ozoneinwirkung in unerwünschter Weise beschleunigt. Man ist deshalb bestrebt, das sich bildende Ozon so rasch wie möglich aus dem Gehäuse des Zündverteilers zu entfernen. Nach DE-OS 33 22 545 geschieht das dadurch, daß auf der Verteilerwelle ein Schaufelrad befestigt ist, das Gase aus dem Zündverteiler durch Öffnungen im Verteilergehäuse hindurch an die Umgebung abführt. Während bei normalem Umgebungsdruck in Meeresniveau diese Schutzmaßnahme ausreicht, besteht bei größeren geodätischen Höhen wegen des geringeren Drucks der Umgebungs­luft und der geringeren Luftdichte im Verteilergehäuse eine erhöhte Ge­fahr eines Funkenüberschlags und damit von Fehlzündungen in der Brenn­kraftmaschine.When the high-voltage current is interrupted, sparks are generated in the ignition distributor of an internal combustion engine, which lead to the formation of ozone and nitrogen oxide. The ozone has a strong oxidizing effect and causes corrosion on the electrical contacts and other metal parts of the ignition distributor if it is left for a long time. The aging of the grease at the bearings of the ignition distributor is accelerated in an undesirable manner by the action of ozone. Efforts are therefore made to remove the ozone which forms from the housing of the distributor as quickly as possible. According to DE-OS 33 22 545 this is done in that a paddle wheel is attached to the distributor shaft, which discharges gases from the distributor through openings in the distributor housing to the environment. While this protective measure is sufficient at normal ambient pressure at sea level, at higher geodetic heights there is an increased risk of arcing and thus misfiring in the internal combustion engine due to the lower pressure of the ambient air and the lower air density in the distributor housing.

Es ist die Aufgabe der Erfindung, bei einer fremdgezündeten, mit einem Turbolader aufgeladenen Brennkraftmaschine, die als Antriebsaggregat für Flugzeuge in größeren Höhen besonders gut geeignet ist, eine noch wirksamere Luftdurchströmung des Zündverteilers zu ermöglichen.It is the object of the invention to enable an even more effective air flow through the ignition distributor in a spark-ignition internal combustion engine charged with a turbocharger, which is particularly well suited as a drive unit for aircraft at higher altitudes.

Wenn zur Lösung dieser Aufgabe am Verteilergehäuse des Zündverteilers die vom Turbolader zum Zylinderkopf führende Ladeluftleitung ange­schlossen ist, liegt der Eintrittsdruck zum Verteilergehäuse schon bei Meeresniveau über dem Umgebungsdruck. Diese Druckdifferenz sorgt dafür, daß eine gute Durchströmung des Zündverteilers sichergestellt ist.If the charge air line leading from the turbocharger to the cylinder head is connected to the distributor housing of the ignition distributor to solve this task, the inlet pressure to the distributor housing is already above sea level at sea level. This pressure difference ensures that a good flow through the ignition distributor is ensured.

Um einen Verlust an Ladeluft zu vermeiden, wird in einer vorteil­haften Ausgestaltung der Erfindung das Verteilergehäuse in einer Bypaßleitung zum Ladeluftkühler so angeordnet, daß die vor dem Lade­luftkühler abgezweigte Ladeluft nach Durchströmen des Verteilergehäuses wieder hinter dem Ladeluftkühler in die Ladeluftleitung einmündet. Für die Durchströmung steht die am Ladeluftkühler sich ergebende Druck­differenz zur Verfügung. Wenn der Ladedurck unabhängig von der geodäti­schen Höhe konstant gehalten wird, um eine gleichbleibende Leistung der Brennkraftmaschmine bei allen Flughöhen zu gewährleisten, hat auch die Luftdichte im Verteilergehäuse einen konstant hohen Wert; Funkenüberschläge von der einen zur anderen Kontaktstelle können auf diese Weise vermieden werden.In order to avoid a loss of charge air, in an advantageous embodiment of the invention the distributor housing is arranged in a bypass line to the charge air cooler in such a way that the charge air branched off in front of the charge air cooler flows back into the charge air line after flowing through the distributor housing behind the charge air cooler. The pressure difference at the charge air cooler is available for the flow. If the charge pressure is kept constant regardless of the geodetic height in order to ensure constant performance of the internal combustion engine at all flight altitudes, the air density in the distributor housing also has a constantly high value; Arcing from one contact point to another can be avoided in this way.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird nachfolgend erläutert.An embodiment of the invention is shown in the drawing and is explained below.

Vom Zylinderkopf 1 einer Brennkraftmaschine führt eine Abgasleitung 2 zur Turbine 3 eines Abgasturboladers 4 und von dort nach dessen Durch­strömen über einen Schalldämpfer 5 ins Freie. Parallel zur Turbine 3 liegt eine Bypaßleitung 6, in die ein Bypaßventil 7 eingesetzt ist, über das je nach seiner Stellung mehr oder weniger Abgas in den Schall­dämpfer 5 gelangt, ohne die Turbine 3 zu beaufschlagen.An exhaust pipe 2 leads from the cylinder head 1 of an internal combustion engine to the turbine 3 of an exhaust gas turbocharger 4 and from there, after flowing through it, to the outside via a silencer 5. Parallel to the turbine 3 is a bypass line 6, into which a bypass valve 7 is inserted, via which, depending on its position, more or less exhaust gas gets into the muffler 5 without acting on the turbine 3.

Die Turbine 3 treibt einen Verdichter 8 an, mit dem Luft aus einem Luftfilter 9 angesaugt und unter Druckerhöhung in eine Ladeluftleitung 10 gefördert wird. Die Ladeluftleitung 10 führt über einen Ladeluftkühler 11 zu einem eine Einspritzanlage steuernden Luftmengenmesser 12 und von dort zum Zylinderkopf 1 der Brennkraftmaschine. Von der Ladeluftleitung 10 zweigt vor dem Ladeluftkühler 11 eine Belüftungsleitung 13 ab, die sich in strömungsmäßig parallele Leitungen 14 und 15 aufteilt und dann in einer gemeinsamen Leitung 16 weitergeführt ist. Die Leitung 16 mündet in Strömungsrichtung gesehen hinter dem Ladeluftkühler 11 in die Lade­luftleitung 10 ein und bildet zusammen mit der Belüftungsleitung 13 eine Bypaßleitung zum Ladeluftkühler 11. In die Leitung 14 ist das Ver­teilergehäuse 17 eines Zündverteilers 18, in die Leitung 15 das Verteilerge­ häuse 19 eines zweiten Zündverteilers 20 eingesetzt. Zwei Zündverteiler sind nötig, wenn, wie es für Flugmotoren vorgeschrieben ist, mit Doppel­zündung gearbeitet wird.The turbine 3 drives a compressor 8, with which air is sucked in from an air filter 9 and conveyed into a charge air line 10 while increasing the pressure. The charge air line 10 leads via a charge air cooler 11 to an air quantity meter 12 controlling an injection system and from there to the cylinder head 1 of the internal combustion engine. A ventilation line 13 branches off from the charge air line 10 in front of the charge air cooler 11 and is divided into lines 14 and 15 that are parallel in terms of flow and is then continued in a common line 16. The line 16 opens in the flow direction behind the charge air cooler 11 into the charge air line 10 and forms a bypass line to the charge air cooler 11 together with the ventilation line 13 housing 19 of a second distributor 20 used. Two ignition distributors are required if double ignition is used, as prescribed for aircraft engines.

Die konstruktive Ausbildung eines Zündverteilers 18 ist schematisch in Fig. 2 dargestellt. Das liegend, mit horizontaler Achse eingebaute Verteilergehäuse 17 ist durch eine angeflanschte Verteilerkappe 21 ver­schlossen. Der Zündverteiler 18 für eine 6-Zylinder-Brennkraftmaschine enthält im Boden der Verteilerklappe 21 sechs Zindelektroden 22 und eine Mittenelektrode 23, die eine auf der Verteilerwelle 24 angebrachte Elektrode 25 kontaktiert. Die Verteilerwelle 24 ist über ein Zahnrad 26 von der Brennkraftmaschine angetrieben und gibt über die umlaufende Elektrode 25 die von der nicht dargestellten Zündspule erzeugte Hoch­spannung im Rythmus der Zündfolge der Zylinder über die Zündelektroden 22 auf die Zündkerzen der Zylinder. Das beim Unterbrechen des Hochspannungs­stromes durch Funkenbildung entstehende Ozon wird aus dem Verteilerge­häuse17 durch Einleiten von Ladeluft entfernt. Hierzu ist die Leitung 14 an die Unterseite 27 des Verteilergehäuses 17 mit einer Mutter 28 angeschraubt und geht an der Oberseite 29 des Verteilergehäuses ab. Mit dem Durchspülen des Verteilergehäuses 17 wird zugleich das sich an der Unterseite 27 ansammelnde Wasser mitgerissen und aus dem Ver­teilergehäuse 17 entfernt.The design of an ignition distributor 18 is shown schematically in FIG. 2. The horizontal distributor housing 17 installed with a horizontal axis is closed by a flange-mounted distributor cap 21. The ignition distributor 18 for a 6-cylinder internal combustion engine contains six Zind electrodes 22 and a center electrode 23 in the bottom of the distributor flap 21, which contacts an electrode 25 attached to the distributor shaft 24. The distributor shaft 24 is driven by the internal combustion engine via a gearwheel 26 and, via the rotating electrode 25, outputs the high voltage generated by the ignition coil (not shown) in the rhythm of the firing order of the cylinders via the ignition electrodes 22 to the spark plugs of the cylinders. The ozone that arises when the high-voltage current is interrupted by sparking is removed from the distributor housing 17 by introducing charge air. For this purpose, the line 14 is screwed to the underside 27 of the distributor housing 17 with a nut 28 and goes off at the top 29 of the distributor housing. When the distributor housing 17 is rinsed through, the water that collects on the underside 27 is also entrained and removed from the distributor housing 17.

Zur Steuerung des hydraulisch betätigbaren Bypaßventils 7 ist es an das Schmierölsystem der mit Trockensumpfschmierung ausgestatteten Brennkraftmaschine angeschlossen. Das Schmierölsystem besteht aus einer Zuführleitung 30, durch die mittels einer in sie eingesetzten Ölpumpe 31 Schmieröl von einem Behäler 32 zum Kurbelgehäuse 33 der Brennkraft­maschine gefördert und auf deren Schmierstellen verteilt wird, sowie aus einer einen Ölkühler 34 enthaltenden ersten Rückleitung 35 vom Kurbelgehäuse 33 zum Behälter 32. Eine zweite Rückleitung 36 führt aus dem Zylinderkopf 1 über eine Drossel 37 und eine Zusatzölpumpe 38 ebenfalls zum Behälter 32. An diese zweite Rückleitung 36 ist vor der Drossel 37 eine Druckleitung 38 zum Bypaßventil 7 angeschlossen. Eine vom Bypaßventil 7 abgehende Rückleitung 39 mündet in die erste Rück­leitung 35 ein und ist durch einen in sie eingesetzten Druckregler 40 gesteuert, der seinerseits von der an der Drosselklappe 41 herrschenden Druckdifferenz pneumatisch gesteuert ist.To control the hydraulically actuated bypass valve 7, it is connected to the lubricating oil system of the internal combustion engine equipped with dry sump lubrication. The lubricating oil system consists of a supply line 30 through which lubricating oil is conveyed from a container 32 to the crankcase 33 of the internal combustion engine and distributed to its lubrication points by means of an oil pump 31, and a first return line 35 containing an oil cooler 34 from the crankcase 33 to the container 32. A second return line 36 also leads from the cylinder head 1 via a throttle 37 and an auxiliary oil pump 38 to the tank 32. A pressure line 38 to the bypass valve 7 is connected to this second return line 36 before the throttle 37. A return line 39 leading from the bypass valve 7 opens into the first return line 35 and is controlled by a pressure regulator 40 inserted therein, which in turn is pneumatically controlled by the pressure difference prevailing at the throttle valve 41.

Claims (5)

1. Fremdgezündete Mehrzylinder-Brennkraftmaschine, die mit einem Turbolader aufgeladen ist, wobei die Ladeluft in einem Ladeluftkühler vor Eintritt in den Zylinderkopf der Brennkraftmaschine gekühlt wird und wobei ein Zündverteiler vorgesehen ist, dessen ihn umschließendes Verteilergehäuse mit Luft zwangsdurchströmt ist, dadurch gekennzeichnet, daß das Verteilergehäuse (17) an die vom Verdichter (8) des Turboladers (4) zum Zylinderkopf (1) führende Ladeluftleitung (10) angeschlossen ist und von Ladeluft durchströmt ist.1. spark-ignited multi-cylinder internal combustion engine, which is charged with a turbocharger, wherein the charge air is cooled in a charge air cooler before entering the cylinder head of the internal combustion engine and an ignition distributor is provided, the surrounding distributor housing of which is forced to flow with air, characterized in that Distributor housing (17) to which the charge air line (10) leading from the compressor (8) of the turbocharger (4) to the cylinder head (1) is connected and through which charge air flows. 2. Brennkraftmaschine nach Anspruch 1, dadurch gekennzeichnet, daß das Verteilergehäuse (17) in eine Bypaßleitung (13, 16) eingesetzt ist, die an der Ladeluftleitung (10) vor dem Ladeluftkühler (11) abzweigt und hinter ihm in die Ladeluftleitung (10) einmündet.2. Internal combustion engine according to claim 1, characterized in that the distributor housing (17) is inserted into a bypass line (13, 16) which branches off on the charge air line (10) in front of the charge air cooler (11) and behind it in the charge air line (10) flows into. 3. Brennkraftmaschine nach Anspruch 2, dadurch gekennzeichnet, daß in die Bypaßleitung (13, 16) zwei Verteilergehäuse (17, 19) eingesetzt sind, die zueinander parallel geschaltet von Ladeluft durchströmt sind.3. Internal combustion engine according to claim 2, characterized in that in the bypass line (13, 16) two distributor housings (17, 19) are used, which are connected in parallel to each other through which charge air flows. 4. Brennkraftmaschine nach Anspruch 1, dadurch gekennzeichnet, daß der Druck der Ladeluft unabhängig von der geodätischen Höhe, in der sich die Brennkraftmaschine befindet, konstant gehalten wird.4. Internal combustion engine according to claim 1, characterized in that the pressure of the charge air is kept constant regardless of the geodetic height at which the internal combustion engine is located. 5. Brennkraftmaschine nach Anspruch 5, dadurch gekennzeichnet, daß ein Bypaßventil (7), das in eine die Turbine (3) des Turboladers (4) umgehende Bypaßleitung (6) eingesetzt ist, mit zunehmender geodätischer Höhe entsprechend geschlossen wird.5. Internal combustion engine according to claim 5, characterized in that a bypass valve (7), which is inserted into a bypass line (6) bypassing the turbine (3) of the turbocharger (4), is correspondingly closed with increasing geodetic height.
EP88101458A 1987-05-06 1988-02-02 Multicylinder turbo-compressed engine with external ignition Expired - Lifetime EP0289701B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3715062 1987-05-06
DE19873715062 DE3715062A1 (en) 1987-05-06 1987-05-06 MULTI-CYLINDER INTERNAL COMBUSTION ENGINE WITH TURBOCHARGER

Publications (3)

Publication Number Publication Date
EP0289701A2 true EP0289701A2 (en) 1988-11-09
EP0289701A3 EP0289701A3 (en) 1989-06-14
EP0289701B1 EP0289701B1 (en) 1992-08-12

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Application Number Title Priority Date Filing Date
EP88101458A Expired - Lifetime EP0289701B1 (en) 1987-05-06 1988-02-02 Multicylinder turbo-compressed engine with external ignition

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US (1) US4841926A (en)
EP (1) EP0289701B1 (en)
DE (2) DE3715062A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR900002242A (en) * 1988-07-14 1990-02-28 나가이 아쯔시 Magnetic disk cartridge
US7556157B2 (en) * 2007-02-02 2009-07-07 Earle Schaller Density current baffle for a clarifier tank
US8857552B2 (en) * 2011-04-01 2014-10-14 Jeffrey David Oltmans Turbocharger for motorcycle

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2195825A (en) * 1937-05-11 1940-04-02 Universal Engine And Propeller Fuel system for engines
US2207368A (en) * 1939-05-17 1940-07-09 Gen Motors Corp Ignition distributor
US2257781A (en) * 1938-10-27 1941-10-07 Bendix Aviat Corp Distributor
US2310575A (en) * 1940-05-17 1943-02-09 Shell Dev Ignition system for internal combustion engines
US2323792A (en) * 1940-05-17 1943-07-06 Shell Dev Spark plug
FR2464379A1 (en) * 1979-09-01 1981-03-06 Bosch Gmbh Robert HV distributor for IC engine ignition - uses two four-cylinder distributors driven from one shaft and coupled by toothed belt to provide eight cylinder ignition

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2798109A (en) * 1954-05-25 1957-07-02 Robert H Voigt Dehumidifier for an automotive distributor
JPS55144855U (en) * 1979-04-03 1980-10-17
JPS566955U (en) * 1979-06-27 1981-01-21
US4302638A (en) * 1979-12-14 1981-11-24 Ford Motor Company Venting system for an internal combustion engine ignition distributor
FR2499626B1 (en) * 1981-02-06 1989-06-02 Honda Motor Co Ltd INTERNAL COMBUSTION ENGINE HAVING A BOOSTER DEVICE PROVIDED WITH A ONE WAY VALVE IN THE INTAKE DUCT
US4445493A (en) * 1981-12-03 1984-05-01 Ford Motor Company Distributor with reduced radio frequency interference
US4505340A (en) * 1982-06-03 1985-03-19 Yantsen Ivan A Hydropneumatic percussive tool
US4666383A (en) * 1982-08-26 1987-05-19 Mendler Edward Charles Iii Rotary machine
US4512296A (en) * 1984-06-04 1985-04-23 Herrington Allen G Distributor moisture guard
JPS62243969A (en) * 1986-04-15 1987-10-24 Honda Motor Co Ltd Distributor

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2195825A (en) * 1937-05-11 1940-04-02 Universal Engine And Propeller Fuel system for engines
US2257781A (en) * 1938-10-27 1941-10-07 Bendix Aviat Corp Distributor
US2207368A (en) * 1939-05-17 1940-07-09 Gen Motors Corp Ignition distributor
US2310575A (en) * 1940-05-17 1943-02-09 Shell Dev Ignition system for internal combustion engines
US2323792A (en) * 1940-05-17 1943-07-06 Shell Dev Spark plug
FR2464379A1 (en) * 1979-09-01 1981-03-06 Bosch Gmbh Robert HV distributor for IC engine ignition - uses two four-cylinder distributors driven from one shaft and coupled by toothed belt to provide eight cylinder ignition

Also Published As

Publication number Publication date
EP0289701A3 (en) 1989-06-14
EP0289701B1 (en) 1992-08-12
US4841926A (en) 1989-06-27
DE3715062A1 (en) 1988-11-17
DE3873595D1 (en) 1992-09-17

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