DE898372C - Fast-running two-stroke engine with charge pump with compression ignition, slot-controlled and with exhaust valve in the cylinder cover - Google Patents

Fast-running two-stroke engine with charge pump with compression ignition, slot-controlled and with exhaust valve in the cylinder cover

Info

Publication number
DE898372C
DE898372C DER7770A DER0007770A DE898372C DE 898372 C DE898372 C DE 898372C DE R7770 A DER7770 A DE R7770A DE R0007770 A DER0007770 A DE R0007770A DE 898372 C DE898372 C DE 898372C
Authority
DE
Germany
Prior art keywords
stroke engine
fast
running
slot
charge pump
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
DER7770A
Other languages
German (de)
Inventor
Max Ruediger
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DER7770A priority Critical patent/DE898372C/en
Application granted granted Critical
Publication of DE898372C publication Critical patent/DE898372C/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B25/00—Engines characterised by using fresh charge for scavenging cylinders
    • F02B25/02—Engines characterised by using fresh charge for scavenging cylinders using unidirectional scavenging
    • F02B25/04—Engines having ports both in cylinder head and in cylinder wall near bottom of piston stroke
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B2720/00—Engines with liquid fuel
    • F02B2720/23—Two stroke engines
    • F02B2720/236—Two stroke engines scavenging or charging channels or openings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D15/00—Varying compression ratio

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Valve Device For Special Equipments (AREA)

Description

Die Erfindung betrifft eine Zweitaktbrennkraftmaschine mit Verdichtungszündung, bei welcher der Einlaßschlitz durch den Kolben und das Auslaßventil im Zylinderdeckel durch Nocken gesteuert werden. Die Maschine arbeitet als Schnelläufer mit Ladepumpe.The invention relates to a two-stroke internal combustion engine with compression ignition, in which the inlet slot through the piston and the outlet valve in the cylinder cover controlled by cams. The machine works as a fast runner with a charge pump.

Damit man ein möglichst großes Auslaßventil erhält und die Gleichstromspülung verbessert wird; ist der Hilfskolben dabei in das große Auslaßventil eingebaut.So that you get the largest possible exhaust valve and the direct current purging is improved; the auxiliary piston is built into the large exhaust valve.

Die Zeichnung zeigt eine Ausführungsform der Brennkraftmaschine. Durch diese Konstruktion erhält man eine höhere Leistung des Motors, weil dieser mit höherer Verdichtung arbeitet und weil der Weg für die Spülluft kürzer ist als bei einer Umkehrspülung, kann der Motor mit höheren Umdrehungen laufen. Der Arbeitszylinder gibt bei tiefstem Stand des Arbeitskolbens A unten die Spülschlitze S frei. Das Gemisch geht durch diese Schlitze in den Zylinderraum.und wird dann beim hochgehen des Kolbens A verdichtet. Im Deckel oben ist das Auslaßventil V, welches sich etwas früher öffnet, als die !Spülschlitze sich öffnen. Dieses Auslaßventil schließt sich jedoch früher, als die Spülschlitze sich schließen.The drawing shows an embodiment of the internal combustion engine. By this construction gives you a higher performance of the motor because it is higher Compression works and because the path for the purge air is shorter than with one Reverse flushing, the motor can run at higher revolutions. The working cylinder releases the flushing slots S at the bottom when working piston A is at its lowest. That Mixture goes through these slots into the cylinder space. And will then go up when of piston A is compressed. In the top of the lid is the outlet valve V, which is slightly opens earlier than the rinsing slots open. This outlet valve closes however, earlier than the purge slots close.

Da der Motor mit einem Lader arbeitet, entsteht eine Vorverdichtung im Zylinderraum und dadurch ein höherer Explosionsdruck. Um diesen hohen Explosionsdruck aufzunehmen, ist die zeitweise Vergrößerung des Explosionsraumes notwendig. Im Anfang der Verdichtung ist im Arbeitszylinder ein viel zu kleiner Explosionsraum vorhanden, erst wenn der Höchstdruck kurz vor dem oberen Totpunkt erreicht wird, entsteht durch die Bewegung des Hilfskolbens ein Kompressionsraum, welcher sich dann durch den Explosionsdruck weiter vergrößert. Bei abfallendem Explosionsdruck verkleinert sich der Explosionsraum wieder auf den Anfangszustand. :Der Druck wird demnach aufgespeichert und nachdem wieder auf den Arbeitskolben abgegeben. Die Explosionsdruckspitze fällt fort, es entsteht eine Art Gleichdruck wie beim Dieselmotor.Since the engine works with a supercharger, there is a pre-compression in the cylinder space and thus a higher explosion pressure. About this high explosion pressure it is necessary to temporarily enlarge the explosion area. In the beginning the compression there is a much too small explosion space in the working cylinder, only when the maximum pressure is reached shortly before top dead center is created by the movement of the auxiliary piston creates a compression space, which then extends through the Explosion pressure further increased. When the explosion pressure drops, it becomes smaller the explosion room back to the initial state. : The pressure is saved accordingly and after being delivered back to the working piston. The explosion pressure peak falls continue, there is a kind of equal pressure like in a diesel engine.

Claims (1)

PATENTANSPRÜCHE: i. Mit Ladepumpe arbeitender, schnell laufender Zweitaktmotor mit Verdichtungszündung, schlitzgesteuert und mit Auslaßventil im Zylinderdeckel, dadurch gekennzeichnet, daß in dem Auslaßventil (h) ein durch den Explosions-,druck sich frei bewegender, abgefederter Hilfskolben (K) sitzt, welcher sich beim Öffnen des Auslaßventils (Spülzeit) gleichzeitig mit diesem gemeinsam und bei geschlossenem Ventil allein bewegt. a. Zweitaktmotor nach Anspruch z, dadurch gekennzeichnet, daß der Hilfskolben zurBegrenzung seines Hubes teilweise mit Öl gefüllt ist. PATENT CLAIMS: i. Fast-running two-stroke engine with compression ignition, working with a charge pump, slot-controlled and with an outlet valve in the cylinder cover, characterized in that a spring-loaded auxiliary piston (K), which moves freely due to the explosion pressure, is located in the outlet valve (h) and which is seated when the Outlet valve (flushing time) moved simultaneously with this jointly and alone when the valve is closed. a. Two-stroke engine according to Claim z, characterized in that the auxiliary piston is partially filled with oil to limit its stroke.
DER7770A 1951-11-30 1951-11-30 Fast-running two-stroke engine with charge pump with compression ignition, slot-controlled and with exhaust valve in the cylinder cover Expired DE898372C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DER7770A DE898372C (en) 1951-11-30 1951-11-30 Fast-running two-stroke engine with charge pump with compression ignition, slot-controlled and with exhaust valve in the cylinder cover

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DER7770A DE898372C (en) 1951-11-30 1951-11-30 Fast-running two-stroke engine with charge pump with compression ignition, slot-controlled and with exhaust valve in the cylinder cover

Publications (1)

Publication Number Publication Date
DE898372C true DE898372C (en) 1953-11-30

Family

ID=7397699

Family Applications (1)

Application Number Title Priority Date Filing Date
DER7770A Expired DE898372C (en) 1951-11-30 1951-11-30 Fast-running two-stroke engine with charge pump with compression ignition, slot-controlled and with exhaust valve in the cylinder cover

Country Status (1)

Country Link
DE (1) DE898372C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19504890A1 (en) * 1995-02-14 1996-08-22 Bayerische Motoren Werke Ag Reciprocating machine with cylinders adjacent in the direction of the crankshaft in a machine housing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19504890A1 (en) * 1995-02-14 1996-08-22 Bayerische Motoren Werke Ag Reciprocating machine with cylinders adjacent in the direction of the crankshaft in a machine housing

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