DE485862C - Internal combustion engine with airless fuel injection - Google Patents

Internal combustion engine with airless fuel injection

Info

Publication number
DE485862C
DE485862C DES80426D DES0080426D DE485862C DE 485862 C DE485862 C DE 485862C DE S80426 D DES80426 D DE S80426D DE S0080426 D DES0080426 D DE S0080426D DE 485862 C DE485862 C DE 485862C
Authority
DE
Germany
Prior art keywords
combustion engine
internal combustion
injection
fuel
piston
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
DES80426D
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.)
Sulzer AG
Original Assignee
Sulzer AG
Gebrueder Sulzer AG
Publication date
Priority to DES80426D priority Critical patent/DE485862C/en
Application granted granted Critical
Publication of DE485862C publication Critical patent/DE485862C/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
    • F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
    • F02B23/0642—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston the depth of the combustion space being much smaller than the diameter of the piston, e.g. the depth being in the order of one tenth of the diameter
    • 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
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
    • F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
    • F02B23/0633—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston the combustion space being almost completely enclosed in the piston, i.e. having a small inlet in comparison to its volume
    • 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
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
    • F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
    • F02B23/0645—Details related to the fuel injector or the fuel spray
    • F02B23/0669—Details related to the fuel injector or the fuel spray having multiple fuel spray jets per injector nozzle
    • 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
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
    • F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
    • F02B23/0675—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston the combustion space being substantially spherical, hemispherical, ellipsoid or parabolic
    • 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
    • F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/14—Direct injection into combustion chamber
    • 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
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
    • F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
    • F02B23/0678—Unconventional, complex or non-rotationally symmetrical shapes of the combustion space, e.g. flower like, having special shapes related to the orientation of the fuel spray jets
    • F02B23/0687—Multiple bowls in the piston, e.g. one bowl per fuel spray jet
    • 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
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)

Description

Verbrennungskraftmaschine mit luftloser Einspritzung des Brennstoffes Die Erfindung betrifft eine Verbrennungskraftmaschine mit luftloser Einspritzung des Brennstoffes, bei der die Brennstoffladung zum Teil durch den Zylinderraum hindurch in mindestens eine im Kolbenboden angeordnete Kammer eingespritzt wird, und besteht darin, daß der übrige Teil der Brennstoffladung durch besondere Spritzöffnungen in annähernd radialer Richtung an der Kolbenkammermündung vorbei unmittelbar in den Zylinderraum eingespritzt wird und daß dieser durch Verkleinerung des lichten Abstandes zwischen Zylinderdeckel und Kolbenstirnfläche in der Zylinderachse ringförmig ausgebildet ist. Dadurch wird gegenüber bisher bekannten Maschinen verwandter Art der Fortschritt erzielt, daß der radial in den Zylinderraum eingespritzte Brennstoff von den im Querstrom dazu aus der Kolbenkammer in den Ringraum übertretenden Druckgasen im Ringraum selbst gut zerstäubt wird. Am besten wird in der Weise verfahren, daß die unmittelbare Einspritzung in den Ringraum der Einspritzung in die Kolbenkammer um so viel nacheilt, als erforderlich, um ein Maximum von Zerstäubung zu bewirken.Internal combustion engine with airless fuel injection The invention relates to an internal combustion engine with airless injection of the fuel, in which the fuel charge partially passes through the cylinder space is injected into at least one chamber arranged in the piston crown, and consists in that the remaining part of the fuel load through special spray openings in an approximately radial direction past the piston chamber mouth directly in the cylinder space is injected and that this by reducing the clear The distance between the cylinder cover and the piston face in the cylinder axis is ring-shaped is trained. As a result, compared to previously known machines of a related type the progress achieved that the fuel injected radially into the cylinder space of the pressurized gases that cross the flow from the piston chamber into the annular space is well atomized in the annulus itself. It is best to proceed in such a way that the direct injection into the annular space of the injection into the piston chamber lags as much as necessary to effect maximum atomization.

Ein Ausführungsbeispiel des Erfindungsgegenstandes ist auf der Zeichnung im Schnitt zur Darstellung gebracht.An embodiment of the subject matter of the invention is shown in the drawing shown in section.

a ist der Zylinder, b der Kolben und c das Einspritzorgan einer Einspritzverbrennungskraftmaschine mit luftloser Einspritzung des Brennstoffes. d ist eine im Kolbenboden angeordnete, vom Kolbenkühlraum e umgebene Kammer, die durch die Öffnung f in ständiger Verbindung mit dem Zylinderraum steht. g ist eine auf die Öffnung f gerichtete axiale Einspritzdüse, von der ein Teil des Brennstoffes durch den Zylinderraum hindurch in die Kammer d eingespritzt wird. Um die Düse g herum sind noch eine Anzahl von weiteren Einspritzdüsen h angeordnet, die den andern Teil des Brennstoffes in. schräg radialer Richtung an der Öffnung' f vorbei unmittelbar in den Zylinderraum einspritzen..a is the cylinder, b the piston and c the injector of an internal combustion engine with airless injection of fuel. d is arranged in the piston crown, the chamber surrounded by the piston cooling chamber e, which is in constant communication through the opening f with the cylinder space. g is an axial injection nozzle directed towards opening f, from which part of the fuel passes through the cylinder space into the chamber d is injected. Around the nozzle g are a number of further injection nozzles h arranged, the other part of the fuel in. obliquely radial direction inject directly past the opening 'f into the cylinder chamber.

Durch die Einspritzung in die Kolbenkammer werden in der letzteren beiße Druckgase erzeugt, die nicht nur dem zentralen Brennstoffstrahl entgegen, sondern auch so in den Zylinderraum geschleudert werden, daß sie die schräg radialen Brennstoffstrahlen kreuzen. Von der nicht weiter gezeichneten Brennstoffördervorrichtung wird der Brennstoff so zu den Düsen -gefördert, daß die Einspritzung durch die Düse g derjenigen ,durch die übrigen Düsen voreilt, und zwar um so viel, als erforderlich ist, um die aus der Kolbenkammer austretenden heißen Druckgase mit dem schräg radial eingespritzten Brennstoff zusammentreffen zu lassen, wodurch eine vorzügliche Zerstäubung dieses die Hauptmenge der Brennstoffladung bildenden Brennstoffes erreicht wird.As a result of the injection into the piston chamber, the latter produces biting pressurized gases that not only counteract the central fuel jet, but are also thrown into the cylinder space in such a way that they are obliquely radial Cross fuel jets. From the fuel delivery device, not shown any further the fuel is fed to the nozzles in such a way that the injection is through the nozzle g that which leads through the remaining nozzles by as much as is necessary is to the exiting from the piston chamber hot compressed gases with the obliquely radial injected fuel to meet, creating excellent atomization this fuel, which forms the bulk of the fuel charge, is achieved.

Claims (2)

PATENTANSPRÜCHE: z. Verbrennungskraftmaschine mit luftloser Einspritzung des Brennstoffes, bei der die Brennstoffladung zum Teil durch den Zylinderraum hindurch in mindestens eine im Kolbenboden angeordnete Kammer eingespritzt wird, dadurch gekennzeichnet, daß der übrige Teil der Brennstoffladung durch besondere Spritzöffnungen (h) in annähernd radialer Richtung an der Kolbenkammermündung vorbei unmittelbar in den Zylinderraum eingespritzt wird und daß dieser durch Verkleinerung des lichten Abstandes zwischen Zylinderdeckel und Kolbenstirnfläche in der Zylinderachse ringförmig ausgebildet ist. PATENT CLAIMS: e.g. Internal combustion engine with airless injection of fuel, in which the fuel charge is partly injected through the cylinder space into at least one chamber arranged in the piston head, characterized in that the remaining part of the fuel charge passes through special injection openings (h) in an approximately radial direction past the piston chamber mouth is injected directly into the cylinder space and that this is made ring-shaped by reducing the clearance between the cylinder cover and the piston face in the cylinder axis. 2. Verbrennungskraftmaschine nach Anspruch x, dadurch gekennzeichnet, daß die unmittelbare Einspritzung in den ringförmigen Zylinderraum der Einspritzung in die Kolbenkammer nacheilt.2. Internal combustion engine according to claim x, characterized characterized in that the direct injection into the annular cylinder space lags behind the injection into the piston chamber.
DES80426D Internal combustion engine with airless fuel injection Expired DE485862C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES80426D DE485862C (en) Internal combustion engine with airless fuel injection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES80426D DE485862C (en) Internal combustion engine with airless fuel injection

Publications (1)

Publication Number Publication Date
DE485862C true DE485862C (en) 1929-11-09

Family

ID=7508860

Family Applications (1)

Application Number Title Priority Date Filing Date
DES80426D Expired DE485862C (en) Internal combustion engine with airless fuel injection

Country Status (1)

Country Link
DE (1) DE485862C (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE747884C (en) * 1941-09-05 1944-10-18 Diesel engine for the combustion of slow reaction, synthetic fuels
US2831468A (en) * 1954-08-04 1958-04-22 Julius E Witzky Fuel injection for internal combustion engines
DE1236272B (en) * 1957-08-30 1967-03-09 Augsburg Nuernberg A G Zweigni Air-compressing, self-igniting internal combustion engine
US4548172A (en) * 1983-06-22 1985-10-22 Caterpillar Tractor Co. Ignition-assisted fuel combustion system
EP0464497A1 (en) * 1990-06-29 1992-01-08 Isuzu Motors Limited Diesel engine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE747884C (en) * 1941-09-05 1944-10-18 Diesel engine for the combustion of slow reaction, synthetic fuels
US2831468A (en) * 1954-08-04 1958-04-22 Julius E Witzky Fuel injection for internal combustion engines
DE1236272B (en) * 1957-08-30 1967-03-09 Augsburg Nuernberg A G Zweigni Air-compressing, self-igniting internal combustion engine
US4548172A (en) * 1983-06-22 1985-10-22 Caterpillar Tractor Co. Ignition-assisted fuel combustion system
EP0464497A1 (en) * 1990-06-29 1992-01-08 Isuzu Motors Limited Diesel engine

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