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DE2717370A1 - IC engine with main and auxiliary combustion chambers - has hydraulic damper to control peak pressure in auxiliary chamber - Google Patents

IC engine with main and auxiliary combustion chambers - has hydraulic damper to control peak pressure in auxiliary chamber

Info

Publication number
DE2717370A1
DE2717370A1 DE19772717370 DE2717370A DE2717370A1 DE 2717370 A1 DE2717370 A1 DE 2717370A1 DE 19772717370 DE19772717370 DE 19772717370 DE 2717370 A DE2717370 A DE 2717370A DE 2717370 A1 DE2717370 A1 DE 2717370A1
Authority
DE
Germany
Prior art keywords
piston
main
spring
cylinder
auxiliary
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.)
Ceased
Application number
DE19772717370
Other languages
German (de)
Inventor
Martin Schmidt
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 DE19772717370 priority Critical patent/DE2717370A1/en
Publication of DE2717370A1 publication Critical patent/DE2717370A1/en
Ceased legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B19/00Engines characterised by precombustion chambers
    • F02B19/10Engines characterised by precombustion chambers with fuel introduced partly into pre-combustion chamber, and partly into cylinder
    • F02B19/1019Engines characterised by precombustion chambers with fuel introduced partly into pre-combustion chamber, and partly into cylinder with only one pre-combustion chamber
    • F02B19/109Engines characterised by precombustion chambers with fuel introduced partly into pre-combustion chamber, and partly into cylinder with only one pre-combustion chamber with injection of a fuel-air mixture into the pre-combustion chamber by means of a pump, e.g. two-cycle engines
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B19/00Engines characterised by precombustion chambers
    • F02B19/06Engines characterised by precombustion chambers with auxiliary piston in chamber for transferring ignited charge to cylinder space
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/12Improving ICE efficiencies

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)

Abstract

The internal combustion engine of the main patents, has a weak mixture fed to the main combustion chamber, ignited by a flame resulting from a rich mixture ignited in the auxiliary combustion chamber. The auxiliary chamber peak pressure can be regulated by a piston (6) working in a cylinder connected to the auxiliary chamber. The piston is connected by a push rod (1) to a shaft (1) or the helical gearwheel turned by it. The shaft is in mesh with a rack (15) which is sprung at one end and subject to hydraulic pressure from a piston (16) at the opposite end. The helical gearwheel can be turned manually by a worm drive (21).

Description

Beschreibung der Zusatzpatent-Anmeldung vom 15. April 1977 zur Hauptpatent-Anmeldung P 24 01 509.6 und der Zusatzpatent-Anmeldung P 24 41 087.5 mit der Bezeichnung: Brennluftmaschine mit Hauptkammer und Vorkammer Die Hauptpatentanmeldung P 24 01 509.6 und Zusatzpatent-Anmeldung P 24 41 087.5 betreffen eine Brennkraftmaschine mit Gemischansaugung und Zeitpunkt-Fremdzündung, bei welcher der Brennraum eine teilweise vom Arbeitskolben begrenzte Hauptkammer und ine mit einer Zündkcrze versehene Vorkammer sowie einen die Kammern verbindenden Bereich aufweist, die Hauptkammer über ein Einlaßventil mit einem mageren Kraftstoff-Luft-Gemisch und die Vorkammer über ein Hilfseinlaventil mit einem fetten Kraftstoff-Luft-Gemisch beschickbar ist und der verbindende Bereich so gestaltet ist, daß das über ihn austretende aktive Verbrennungsgas eine Drallbewegung oder Turbulenz der Ladung verursacht, desweiteren die Flammen- und Durchbrenngeschwindigkeit weitestgehend gesteuert wird.Description of the additional patent application dated April 15, 1977 for the main patent application P 24 01 509.6 and the additional patent application P 24 41 087.5 with the designation: Combustion air machine with main chamber and antechamber The main patent application P 24 01 509.6 and additional patent application P 24 41 087.5 relate to an internal combustion engine with mixture intake and timing external ignition at which the combustion chamber has a The main chamber is partially delimited by the working piston and provided with a spark plug Has antechamber and an area connecting the chambers, the main chamber via an inlet valve with a lean fuel-air mixture and the prechamber Can be charged with a rich fuel-air mixture via an auxiliary inlet valve and the connecting area is designed so that the active exiting through it Combustion gas causes a swirl movement or turbulence of the charge, furthermore the flame and burn rate is controlled as far as possible.

Hierbei tritt aber das Problem auf, daß unkontrolierbar auf.Here, however, the problem arises that it is uncontrollable.

tretende Druckspitzen im Brennraum a unbillige Triebwerksschäden der Brennkraftmaschine verursachen können.occurring pressure peaks in the combustion chamber a unreasonable engine damage the Internal combustion engine can cause.

Der Erfindung liegt die Aufgabe zugrunde, zur zwangsläufigen (Hand- oder Nußhebel abhängigen) mechanischen oder elektronischen Steuerung des Kolbens c im Vorkammerzylinder d (innerhalb des Eintauch- bzw. Kolbenhubbereiches von C in d ) eine zusätzliche Steuerung zu schaffen, durch welche alle unkontrolierbar auftretende Druckapitzen (z.B. durch fehlerhafte Zünd- oder Kraftstoff-Lutt- Gemischzustände usw.) im Brennraum a@@@@@ Brennkr@@@maschine, die über @@n von der Ladung her bedingter Expansion liegen kondensiert @@@-en.The invention is based on the task of inevitable (manual or nut lever dependent) mechanical or electronic control of the piston c in the prechamber cylinder d (within the immersion or piston stroke range of C in d) to create an additional control, through which all uncontrollable Occurring pressure peaks (e.g. due to incorrect ignition or fuel-lutt mixture states etc.) in the combustion chamber a @@@@@ Brennkr @@@ machine, which can be accessed via @@ n from the Charges from conditioned expansion are condensed @@@ - en.

Die Lösung dieses Probleme besteht darin, da@ die @ub @hrl@@-@elle i 2 der Hubscheibe bzw. Hubzapfer k koaxial und drehbar in die Achswelle i von k oder des Schraubenrades (oder Körpers) i 7 des Getriebes z 1 eingelagert ist, und i 2 mittels des Zahnrades i 4über die Zahnstange i 5 an den Sto@dämpfer- und Begrenzungskolben i 6 im Zylinder i 7 an i 3 , andererseits durch Zahnstanhe i 5 über die Feder i 8 druckbelastet an i 3 derart angelenkt ist, daß bei der nur von der Ladung her bedingten Expansion auf den Kolbenbocen n des Kolben c durch entsprechende Federkraft (Druck) der Feder i 8 auf den kolben i 5 im Zylinder i 7 ein Verschluß der Überströmungskanäl 1 durch i 6 zu Raum i 10 hin erfolgt, wodurch der binechluß der D."fmpferflüssigkeit im Zylinderraum i 11 und so die Festpunktstellung von i 2 in i bewirkt wird, welche letztlich für die Hand- oder Fußhebel abhängigen Steuerungen von o in d erforderlich ist, dagegen wird bei auf-tretenden Druckspitzen aie mit auf n des Kolbens c wirken und der sich aus dem Überdruck heraus resultierenden Bewegung des Kolbens c in d über 1 , k, i 2 und 1 5 auf i 8 die Verkürzung des Federvleg)es i 12 der Feder i i 8 unter gleichzeitiger, druckabhängiger Erweiterung des Volumen des Brennraums a durch den Kolben c in d (bei jeder gebteuerten Kolbenstellung des Kolbens c im Zylinder d ) bewirkt, die nur bei der Tctpunktstellung (00) der Hubscheibe k von i 2 in i begrenzt wird, dadurch werden alle Druckspitzen im Brennraum a die über der von der Ladung her bedingten Expansion liegen durch druckbedingte Erveiterung des Volumen von a kompensiert.The solution to this problem is because @ the @ub @hrl @@ - @ elle i 2 of the cam disk or crank pin k coaxially and rotatably in the axle shaft i of k or of the helical gear (or body) i 7 of the gearbox z 1 is embedded, and i 2 by means of the gear wheel i 4 via the rack i 5 to the shock absorber and limiting piston i 6 in the cylinder i 7 at i 3, on the other hand through the rack i 5 via the spring i 8 pressure loaded on i 3 is articulated in such a way that only from the charge conditional expansion on the piston pin n of the piston c by appropriate spring force (Pressure) of the spring i 8 on the piston i 5 in the cylinder i 7 a closure of the overflow channels 1 takes place through i 6 to room i 10, whereby the binary closure of the D. in the cylinder space i 11 and thus the fixed point position of i 2 in i is effected, which ultimately required for the hand or foot lever-dependent controls from o to d on the other hand, when pressure peaks occur, aie will also act on n of piston c and the movement of the piston c in d resulting from the overpressure over 1, k, i 2 and 1 5 on i 8 the shortening of the spring mat) it i 12 of the spring i i 8 with simultaneous, pressure-dependent expansion of the volume of the combustion chamber a through piston c in d (for each controlled piston position of piston c in Cylinder d) causes the only in the Tctpunktstellung (00) of the lifting disc k of i 2 is limited in i, thereby all pressure peaks in the combustion chamber a are over the expansion caused by the charge are due to pressure-related expansion compensated for the volume of a.

Ein weiterer Vorteil besteht darin, daß durch die auf den Kolbenboden von c wirkende Expansion (einschließlich inkonstanter Druckspitzen)und der dadurch über die Hubstange 1 auf den Kurbelradius der Hubscheibe k im Kreissektor von z.B. 90° nach 0° hin veränderlich wirkende tangentiale Drehkraft, nur die Federkraft der Feder i 8 im FederqeF. 1 1 in gesamten Leerlauf und Lastbereich der Brennkraftmaschine erforderlich macht.Another advantage is that due to the on the piston head expansion acting on c (including inconstant pressure peaks) and the resulting via the lifting rod 1 to the crank radius of the lifting disc k in the circular sector of e.g. 90 ° to 0 ° changing acting tangentials Torque, only the spring force of the spring i 8 in the FederqeF. 1 1 in the entire idle and load range the internal combustion engine makes necessary.

Die Zeichnung zeigt die druckabhängige Steuerung des Kolbens c im Vorkammerzylinder der Brennkraftmaschine schematisch.The drawing shows the pressure-dependent control of the piston c im Prechamber cylinder of the internal combustion engine schematically.

Es bezeichnet a den Brennraum, b die Vorkammer, c den Kolben im Vorkammerzylinder, d Vorkammerzylinder, i Achswelle, k Jubscheibe, 1 Hubstange,(an c und k angelenkt) i 2 Hubscheibenwelle, i 3 Schraubenrad des Getriebes z 1 , i 4 Zahnrad, i 5 Zahnstange, 16 Blegrennungskolben, i 7 Zylinder, i 8 Peder, i 9, Überströmungskanäle, i 10 Raum bzw. Reservoir, i 11 Zylinderraum, i 12 Federweg, i 13 Stand der Dämpferflüssigkeit (maximal), i 14 Verschluß- und Entlüftungs-Element .It denotes a the combustion chamber, b the prechamber, c the piston in the prechamber cylinder, d pre-chamber cylinder, i axle shaft, k jubber disc, 1 lifting rod, (hinged to c and k) i 2 cam disk shaft, i 3 helical gear of the gearbox z 1, i 4 toothed wheel, i 5 toothed rack, 16 lead separation pistons, i 7 cylinders, i 8 peder, i 9, overflow channels, i 10 space or reservoir, i 11 cylinder space, i 12 spring travel, i 13 level of the damper fluid (maximum), i 14 closure and ventilation element.

Claims (1)

Patentansprucn: 0 Brennkraftmaschine mit Hauptkammer und Werkkammern Hauptpatentanmeldung P 24 01 509.6 und Zusatzpatent Anmeldung P 24 41 087.5 dadurch gekennzeichnet, d@@ die Hubscheibenwelle (i 2) Qer Hubscheibe bzv-o zapfen ( k ) koaxial und drehbar in die oder auf Sie Achswelle ( i ) von ( k ) oder des Schraubenrades (i 3 ) des Getriebes (z 1) eingelagert ist, unJ (i 2) mittels des Zahnrades (i 4) über die Zahnstange (i 5) an den Stoßdämpfer- und Begrenzungskolben (i 6) in Zylinder (i 7) an (i 3), anderseits durch Zahnstarge (i 5) über die Feder (i ) druckbelastet an (i ,) derart angelenkt ist, daß bei der nur von der Ladung her bedingten Expansion auf den Kolbenboden ( 11) dez Kolbens ( c ) durch entsprethende Federkraft der leder (i 8) auf den Kolben (i 6) im Zylinder (i 7) ein Verschluß der Überströmungskanäle (i 9) durch (i 6) zu Raum (i 10) hin erfolgt, wodurch der Einschluß der Dampferflüssigkeit im Zylinderraum (i 11) und so die Festpunktstellung von (i 2) in ( i ) bewirkt wird, dagegen wird bei auftretenden Druckspitzen die*auf ( n des Kolbens ( c ) wirken und der sich aus dem Überdruck heraus reaultierenden Bewegung des Kolben ( c ) in ( d ) über Hubstange ( 1 ), ( k ), (i 2) und (i 5) auf (i 8), die Verkürzung des Federweges (i 12) der Feder (i 8) unter gleichzeitiger, druckabhängiger Erweiterung des Volumen des Brennraums ( a ) durch den Kolben ( c) in ( d ) bewirkt, die n#r bei der Totpunktstellung (00) der Hubsch b./ k n (i 2) in ( 1 ) begrenzt wird.(* mit)Claims: 0 internal combustion engine with main chamber and work chambers Main patent application P 24 01 509.6 and additional patent application P 24 41 087.5 thereby marked, d @@ the lifting disc shaft (i 2) Qer lifting disc bzv-o pin (k) coaxial and rotatable in or on you axle shaft (i) of (k) or the helical gear (i 3) of the gearbox (z 1) is stored, unJ (i 2) by means of the gear (i 4) Via the rack (i 5) to the shock absorber and limiting piston (i 6) in the cylinder (i 7) at (i 3), on the other hand pressure-loaded by toothed rack (i 5) via spring (i) at (i,) is articulated in such a way that in the case of the expansion caused only by the charge on the piston crown (11) of the piston (c) by the spring force of the leather (i 8) on the piston (i 6) in the cylinder (i 7) a closure of the overflow channels (i 9) takes place through (i 6) to space (i 10), whereby the inclusion of the vapor liquid in the cylinder space (i 11) and thus the fixed point position of (i 2) in (i) is effected, on the other hand, when pressure peaks occur, the * will act on (n of piston (c) and the movement of the piston (c) in (d) via lifting rod (1), (k), (i 2) and (i 5) to (i 8), the shortening of the Spring travel (i 12) of the spring (i 8) with simultaneous, pressure-dependent expansion of the volume of the combustion chamber (a) caused by the piston (c) in (d), the n # r at the dead center position (00) the stroke b. / k n (i 2) is limited in (1). (* with)
DE19772717370 1977-04-20 1977-04-20 IC engine with main and auxiliary combustion chambers - has hydraulic damper to control peak pressure in auxiliary chamber Ceased DE2717370A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19772717370 DE2717370A1 (en) 1977-04-20 1977-04-20 IC engine with main and auxiliary combustion chambers - has hydraulic damper to control peak pressure in auxiliary chamber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772717370 DE2717370A1 (en) 1977-04-20 1977-04-20 IC engine with main and auxiliary combustion chambers - has hydraulic damper to control peak pressure in auxiliary chamber

Publications (1)

Publication Number Publication Date
DE2717370A1 true DE2717370A1 (en) 1978-10-26

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4827882A (en) * 1985-07-16 1989-05-09 Paul Marius A Internal regenerative combustion engines with thermal integrated optimized system
EP0541291A1 (en) * 1991-11-02 1993-05-12 Merritt, Dan, Dr. Internal combustion engine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4827882A (en) * 1985-07-16 1989-05-09 Paul Marius A Internal regenerative combustion engines with thermal integrated optimized system
EP0541291A1 (en) * 1991-11-02 1993-05-12 Merritt, Dan, Dr. Internal combustion engine
WO1993009337A1 (en) * 1991-11-02 1993-05-13 Coventry University An internal combustion engine

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