DE394983C - Starting device for internal combustion engines with decompression valve - Google Patents

Starting device for internal combustion engines with decompression valve

Info

Publication number
DE394983C
DE394983C DEM82247D DEM0082247D DE394983C DE 394983 C DE394983 C DE 394983C DE M82247 D DEM82247 D DE M82247D DE M0082247 D DEM0082247 D DE M0082247D DE 394983 C DE394983 C DE 394983C
Authority
DE
Germany
Prior art keywords
valve
starting
internal combustion
combustion engines
decompression valve
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
DEM82247D
Other languages
German (de)
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.)
RUDOLF MUELLER DR ING
Original Assignee
RUDOLF MUELLER DR ING
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 RUDOLF MUELLER DR ING filed Critical RUDOLF MUELLER DR ING
Priority to DEM82247D priority Critical patent/DE394983C/en
Application granted granted Critical
Publication of DE394983C publication Critical patent/DE394983C/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L13/00Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/08Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for decompression, e.g. during starting; for changing compression ratio

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Valve Device For Special Equipments (AREA)

Description

Anlaßvorrichtung für Verbrennungskraftmaschinen mit Dekompressionsventil. Es ist bekannt, die Kompression von Motoren durch Öffnen eines Ventils während eines Teiles des Verdichtungshubes so herabzusetzen, daß ein Anwerfen von Hand möglich ist. Diese Ventile werden durch eine unveränderliche. Nockensteuerung angehoben. Eine Änderung der Verdichtungshöhe ist ohne bauliche Änderung an der Steuerung nicht zu erreichen.Starting device for internal combustion engines with decompression valve. It is known to reduce the compression of engines by opening a valve during a Reduce part of the compression stroke so that starting by hand is possible is. These valves are immutable. Cam control raised. A change in the compaction height is not possible without a structural change to the control to reach.

Nach der Erfindung wird die Stärke der Kompressionsverminderung nicht durch Hub oder Öffnungsdauer eines mechanisch gesteuerten Ventils, sondern durch Anordnung eines veränderlichen Drosselquerschnitts erreicht. Der Verbindungskanal vom Brennraum zur Drosselstelle wird nach der Erfindung durch ein von Hand zu bedienendes bzw. feststellbares Ventil freigegeben. Beim ersten Andrehen des Motors ist die Luftgeschwindigkeit in der -Drosselstelle infolge der noch langsamen Bewegung des Kolbens gering, der Drosselwiderstand ist also klein. Es entweicht daher eine erhebliche Luftmenge, die Kompression bleibt niedrig, der Motor läßt sich leicht drehen. Bekommt der Motor Zündungen, und beginnt er dadurch allmählich schneller zu laufen, so wachsen die Widerstände an der Drosselstelle bedeutend stärker als die Drehzahlen; die Kompression wird daher höher und höher und nähert sich den für normalen Betrieb gewünschten Drücken. Durch Probieren ist die Stärke der Drosselung durch Wahl der Bohrungen so abzustimmen, daß sich der Motor noch genügend leicht andrehen läßt, gleichzeitig aber die Verdichtungsdrücke doch schon zu Zündungen führen.According to the invention, the strength of the compression reduction is not by stroke or opening time of a mechanically controlled valve, but by Arrangement of a variable throttle cross-section achieved. The connecting channel from the combustion chamber to the throttle point is operated by hand according to the invention or lockable valve released. When the engine is started for the first time, the Air speed in the throttle point as a result of the still slow movement of the Piston low, so the throttle resistance is low. It therefore escapes a considerable amount Air volume, the compression remains low, the motor can be turned easily. Receives the engine ignites, and thereby gradually begins to run faster, so grow the resistances at the throttle point are significantly stronger than the speeds; the compression therefore gets higher and higher and approaches those desired for normal operation To press. By trial and error, the strength of the throttling is determined by the choice of the holes to be tuned so that the engine can still be turned on easily enough, at the same time but the compression pressures already lead to ignitions.

Die Anwendung einer Drosselscheibe, die mit beliebigen Löchern versehen werden kann, ermöglicht eine bequemere und empfindlichere Einstellung des Drosselquerschnitts, als dies mit dem Ventil allein möglich wäre.The application of a throttle disc, which can be provided with any holes allows a more convenient and sensitive setting of the throttle cross-section, than would be possible with the valve alone.

Häufig ist es nicht vorher zu sagen, ob ein Motor an seinem Aufstellungsort von Hand oder mit Druckluft angelassen werden soll. Es ist aber wesentlich für die billige Herstellung der Maschine, daß ohne große Änderungen es möglich ist, den Motor entweder für Hand oder für Druckluftanlassen liefern zu können. Die Erfindung gestattet eine solche Anpassung an die Betriebsverhältnisse, indem an Stelle der Drosselvorrichtung die Anschlußleitung für die Anlaßluft tritt. Das erwähnte Ventil dient im letzten Fall als Anlaßventil und wird im Motortakt in bekannter Weise bewegt.Often it is not possible to say in advance whether an engine will be in its place of installation should be started by hand or with compressed air. But it is essential for them cheap production of the machine that it is possible without major changes to the To be able to deliver motor either for manual or for compressed air starting. The invention allows such an adaptation to the operating conditions by replacing the Throttle device enters the connecting line for the starting air. That valve mentioned in the latter case serves as a starter valve and is moved in a known manner with the engine cycle.

Die Abbildung stellt ein Ausführungsbeispiel der Erfindung dar.The figure shows an embodiment of the invention.

z ist das Zylindergußstück, 2 der Zylinderkopf, 3 der Brennraum des Motors. Durch die vermittels Ventil ¢ verschließbare Öffnung 5 und den in den Zylinderkopf eingegossenen Luftweg 6 steht der Brennraum mit der Außenluft bzw. mit dem Anlaßgefäß in Verbindung. 7 ist die durch Mutter 8 befestigte Drosselscheibe, welche durch das Mundstück der Anlaßleitung ersetzt werden kann. Die Betätigung des Ventils 4 geschieht durch Handhebel 9, welcher durch Stützhebel io 1n der Öffnungsstellung des Ventils festgehalten werden kann.z is the cylinder casting, 2 the cylinder head, 3 the combustion chamber of the engine. The combustion chamber is connected to the outside air or to the starting vessel through the opening 5, which can be closed by means of the valve ¢, and the air path 6 cast into the cylinder head. 7 is the throttle washer fastened by nut 8, which can be replaced by the mouthpiece of the starting line. The operation of the valve 4 is done by hand lever 9, which can be held in place by support lever io 1n the open position of the valve.

Claims (1)

PATENTANSPRÜCHE: i. Anlaßvorrichtung für Verbrennungskraftmaschinen mit Dekompressionsventil, gekennzeichnet durch eine in die Luftleitung (6), zwischen Dekompressionsventil (q.) und Außenluft eingebaute, leicht auswechselbare Drosselscheibe (7), durch deren Durchströmquerschnitt für das Anlassen von Hand die Menge der entweichenden Luft eingestellt werden kann. s. Vorrichtung nach Anspruch i, dadurch gekennzeichnet, daß beim Anlassen durch Druckluft an Stelle der Drosselscheibe eine Druckluftleitung angeschlossen ist, so daß das Ventil (q) ohne weitere bauliche Veränderung wahlweise au`h als Druckluftanlaßventil dient. PATENT CLAIMS: i. Starting device for internal combustion engines with a decompression valve, characterized by an easily replaceable throttle disc (7) built into the air line (6) between the decompression valve (q.) And the outside air, through whose flow cross-section the amount of escaping air can be set by hand for starting. See device according to claim 1, characterized in that when starting with compressed air, a compressed air line is connected in place of the throttle disk, so that the valve (q) can also be used as a compressed air inlet valve without any further structural changes.
DEM82247D 1923-08-07 1923-08-07 Starting device for internal combustion engines with decompression valve Expired DE394983C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEM82247D DE394983C (en) 1923-08-07 1923-08-07 Starting device for internal combustion engines with decompression valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM82247D DE394983C (en) 1923-08-07 1923-08-07 Starting device for internal combustion engines with decompression valve

Publications (1)

Publication Number Publication Date
DE394983C true DE394983C (en) 1924-05-02

Family

ID=7319262

Family Applications (1)

Application Number Title Priority Date Filing Date
DEM82247D Expired DE394983C (en) 1923-08-07 1923-08-07 Starting device for internal combustion engines with decompression valve

Country Status (1)

Country Link
DE (1) DE394983C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2734021A1 (en) * 1995-05-09 1996-11-15 Chatelain Michel Francois Cons Decompression valve for Internal combustion engines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2734021A1 (en) * 1995-05-09 1996-11-15 Chatelain Michel Francois Cons Decompression valve for Internal combustion engines

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