AT64672B - Fuel injection device for internal combustion engines that work with fuel that is difficult to ignite. - Google Patents

Fuel injection device for internal combustion engines that work with fuel that is difficult to ignite.

Info

Publication number
AT64672B
AT64672B AT64672DA AT64672B AT 64672 B AT64672 B AT 64672B AT 64672D A AT64672D A AT 64672DA AT 64672 B AT64672 B AT 64672B
Authority
AT
Austria
Prior art keywords
fuel
cam
injection device
ignite
difficult
Prior art date
Application number
Other languages
German (de)
Inventor
Carl Grunwald
Original Assignee
Carl Grunwald
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 Carl Grunwald filed Critical Carl Grunwald
Application granted granted Critical
Publication of AT64672B publication Critical patent/AT64672B/en

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  • Fuel-Injection Apparatus (AREA)

Description

  

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   Eine derartige Anordnung der beiden Nocken   n'und 112   auf der Nockenscheibe   N   zeigt Fig. 2. Wie aus dieser Figur zu ersehen ist, ist der Hauptbrennstoffnocken n1 ungefähr doppelt so breit wie der Hilfsnocken n2. Ausserdem besitzt der Hilfsnocken n2 zwei verschieden hohe Laufflächen, die untereinander bzw. mit der   Umfäche   der Nockenscheibe durch    schräge Auflauf-   flächen verbunden sind. Die Nockenscheibe N ist in an sich bekannter Weise auf der Steuerwelle Rdurch Nut und Feder verschiebbar angeordnet und kann von Hand durch einen Stell- 
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   stehen müssen.   Die Nockenscheibe nimmt dann zum Hebel P die aus Fig. 2 ersichtliche Lage ein, bei der die Steuerrolle p1 lediglich mit dem Brennstoffnocken n1 zusammenarbeitet.

   Sinkt die Belastung der Maschine unter halbe Last. so muss der Stellhebel in die Mittellage 11 übergeführt werden. Hiedurch wird bewirkt, dass der niedrige Teil der Hilfsnockens n2 in die Bahn der Steuer-   welle gelangt. Es findet dann eine geringe Voröffnung des Brennstofventils vor dem Einspritzen des Brennstoffes statt. Bei Leerlauf endlich würde der Stellhebel/3 in Stellung Ill zu bringen   sein. wobei dann der hohe Teil des Hilfsnockens n2 wirksam wird und eine grössere Voröffnung des Brennstoffventils herbeiführt. Die Einstellung der Nockenscheibe A entsprechend den verschiedenen Belastungen kann natürlich auch vom Geschwindigkeitsregler aus erfolgen. 



   Die Stelle der Nockenscheibe   Y, an   der der Hilfsnocken n2 zweckmässig anzuordnen ist,   muss   durch Versuche festgestellt werden. 



   Die in Fig. 3 und 4 dargestellte Ausführungsform unterscheidet sich von der zuerst be-   schriebenen   im wesentlichen dadurch, dass die Verbindung des Ringraumes G mit dem Arbeitszylinder nicht durch die Brennstoffdüsenöffnung, sondern durch einen besonders gesteuerten   Cmführungskanal K erfolgt.   Das Öffnen und Schliessen dieses Kanals wird hiebei durch ein Hilfsnadelventil L bewirkt. das unter Vermittlung eines zweiten. mit Bezug auf den   Steuerhebel l"   etwas mehr nach vorn liegenden Steuerhebels T ebenfalls von der   Nockenscheibe. v aus gesteuert   wird. Zu diesem Zwecke ist wiederum ausser dem normalen   Brennstoffnocken nl auf   der Nocken- 
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   Such an arrangement of the two cams n 'and 112 on the cam disk N is shown in FIG. 2. As can be seen from this figure, the main fuel cam n1 is approximately twice as wide as the auxiliary cam n2. In addition, the auxiliary cam n2 has two running surfaces of different heights, which are connected to one another or to the surface of the cam disk by inclined contact surfaces. The cam disk N is arranged in a manner known per se on the control shaft R by means of a tongue and groove and can be adjusted by hand using an adjusting
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   have to stand. The cam disk then assumes the position shown in FIG. 2 relative to the lever P, in which the control roller p1 only works together with the fuel cam n1.

   If the load on the machine drops below half load. so the control lever must be moved to the central position 11. This causes the lower part of the auxiliary cam n2 to get into the path of the control shaft. There is then a slight pre-opening of the fuel valve before the fuel is injected. Finally, when idling, the control lever / 3 would have to be brought into position III. the high part of the auxiliary cam n2 then takes effect and brings about a larger pre-opening of the fuel valve. The setting of the cam disk A according to the different loads can of course also be done from the speed controller.



   The position of the cam disk Y at which the auxiliary cam n2 is to be appropriately positioned must be determined through tests.



   The embodiment shown in FIGS. 3 and 4 differs from the first described essentially in that the connection of the annular space G to the working cylinder is not made through the fuel nozzle opening, but rather through a specially controlled channel K. The opening and closing of this channel is brought about by an auxiliary needle valve L. that with the mediation of a second. With reference to the control lever l "a little more forward control lever T is also controlled by the cam disk. v. For this purpose, in addition to the normal fuel cam nl on the cam-
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Claims (1)

kurzes Voröffnen des Brennstoflventils bewirkt wird. brief pre-opening of the fuel valve is effected. 3. Ausführungsform der Brennstoffeinspritzvorrichtung nach Anspruch 2, dadurch ge- kennzeichnet. dass auf der Nockenscheibe (N). die zur Steuerung des Brennstoffventils dient. ausser dem Brennstoffnocken (n1) ein diesem im Drehsinne vorgelagerter Hilfsnocken (n2) vorgesehen ist, der das Voröffnen des Brennstoffventils bewirkt. 3. Embodiment of the fuel injection device according to claim 2, characterized. that on the cam (N). which is used to control the fuel valve. In addition to the fuel cam (n1), an auxiliary cam (n2) is provided upstream of the latter in the direction of rotation and which causes the fuel valve to pre-open. 4 Ausführungsform der Brennstoffeinspritzvorrichtung nach Anspruch 3, dadurch ge- EMI2.3 dem Anheben des Brennstoffventils durch einen besonderen gesteuerten Umführungskanal (K) erfolgt. 4 embodiment of the fuel injection device according to claim 3, characterized EMI2.3 the lifting of the fuel valve takes place through a special controlled bypass channel (K).
AT64672D 1911-10-31 1912-07-15 Fuel injection device for internal combustion engines that work with fuel that is difficult to ignite. AT64672B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE64672X 1911-10-31

Publications (1)

Publication Number Publication Date
AT64672B true AT64672B (en) 1914-05-11

Family

ID=5632501

Family Applications (1)

Application Number Title Priority Date Filing Date
AT64672D AT64672B (en) 1911-10-31 1912-07-15 Fuel injection device for internal combustion engines that work with fuel that is difficult to ignite.

Country Status (1)

Country Link
AT (1) AT64672B (en)

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