DE1006205B - Injection internal combustion engine - Google Patents

Injection internal combustion engine

Info

Publication number
DE1006205B
DE1006205B DEM25553A DEM0025553A DE1006205B DE 1006205 B DE1006205 B DE 1006205B DE M25553 A DEM25553 A DE M25553A DE M0025553 A DEM0025553 A DE M0025553A DE 1006205 B DE1006205 B DE 1006205B
Authority
DE
Germany
Prior art keywords
piston
recess
injection nozzle
piston head
combustion engine
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.)
Pending
Application number
DEM25553A
Other languages
German (de)
Inventor
Ercole Galli
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.)
MONDIAL PISTON CO ERCOLE GALLI
Original Assignee
MONDIAL PISTON CO ERCOLE GALLI
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 MONDIAL PISTON CO ERCOLE GALLI filed Critical MONDIAL PISTON CO ERCOLE GALLI
Publication of DE1006205B publication Critical patent/DE1006205B/en
Pending 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
    • F02B23/0678—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
    • F02B23/0681—Square, rectangular or the like profiles
    • 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
    • F02B23/0648—Means or methods to improve the spray dispersion, evaporation or ignition
    • F02B23/0651—Means or methods to improve the spray dispersion, evaporation or ignition the fuel spray impinging on reflecting surfaces or being specially guided throughout the combustion space
    • 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
    • F02B23/0684—Ring like bowl, e.g. toroidal
    • 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
    • F02B23/0696—W-piston bowl, i.e. the combustion space having a central projection pointing towards the cylinder head and the surrounding wall being inclined towards the cylinder wall
    • 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
    • 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)
  • Dispersion Chemistry (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)

Description

Einspritzbrennkraftmaschine Die Erfindung bezieht sich auf eine Einspritzbrennkraftmaschine, bei welcher zur Erzeugung eines Wirbelzustandes an der Einspritzdüse der Kolbenboden mit einer Aussparung beim Kompressionshub in unmittelbare Nähe der Düsenspitze gelangt. Um die 7erstäubende Wirkung zu vergrößern, greift bei bekannten Kolbengestaltungen der Boden mit schräg-en Flächen in den Düsenstrahl. Dadurch entstehen während des Einspritzens stets neue Streuwinkel. Auch erhält der Kolbenboden eine geringe Vertiefung, mit der er in die Nähe der Düsenspitze gelangt.Injection internal combustion engine The invention relates to an injection internal combustion engine, in which the piston crown is used to generate a vortex condition at the injection nozzle comes with a recess in the compression stroke in the immediate vicinity of the nozzle tip. In order to increase the atomizing effect, use is made of known piston designs the bottom with sloping surfaces in the jet. This creates during the Injection always new spreading angles. The piston crown is also given a slight indentation, with which he gets close to the nozzle tip.

Gemäß der Erfindung ist die sich der Einspritzdüse nähernde Kolbenwand als ebene! Fläche ausgebildet, in der die, Aussparung enthalten ist. Diese Fläche liegt am Gipfel einer Erhebung, die aus einer tiefen Aussparung am Kolben aufsteigt und mit der Fläche eine scharfe Kante bildet, Dabei kann der am Kolbenkopf aufragende Ansatz, in den die Spitze der Einspritzdüse beim Kompressionshub eintritt, sich in der Mitte einer tiefen am Kolbenkopf vorgesehenen wulstförrnigen Aussparung befinden, deren Umfangswände im wesentlichen senkrecht auf die Oberfläche des Kolbenkopfes treffen, um einen scharfen Umriß zu erzeugen. Bei dieser Ausgestaltung wird ein Teil der kinetischen Energie des wirbelnden Brennstoffs dazu benutzt, die kohlehaltigen Niederschläge, die sich um das Zuführungsrohr und die sie umgebenden Flächen festsetzen, mitzureißen, wodurch nicht nur die Anhäufung von Verkrustungen, sondern auch ihre Bildung überhaupt verhindert wird.According to the invention, the piston wall approaching the injection nozzle is as a level! Surface formed in which the recess is contained. This area is at the top of a bump that rises from a deep recess on the piston and forms a sharp edge with the surface Approach that the tip of the injector enters on the compression stroke are in the middle of a deep, bulged recess provided on the piston head, the circumferential walls of which are essentially perpendicular to the surface of the piston head meet to create a sharp outline. In this configuration, a Part of the kinetic energy of the swirling fuel is used for the carbonaceous Precipitation that settles around the supply pipe and the surfaces surrounding it, carry away, reducing not only the buildup of incrustations, but theirs as well Education is prevented at all.

Die Zeichnung zeigt schematisch eine- Ausführungsform der Erfindung.The drawing shows schematically an embodiment of the invention.

Fig. 1 ist ein axialer Schnitt durch den Kolben einer Einspritzbrennkraftmaschine; Fig. 2 zeigt eine Draufsicht auf die im Kopf des Kolbens gebildete Verbrennungskammer.Fig. 1 is an axial section through the piston of an injection internal combustion engine; Figure 2 shows a plan view of the combustion chamber formed in the head of the piston.

Die Einspritzdüse 1 kann von beliebiger bekannter Ausführung oder auch in ihrer äußeren Gestaltung abweichend ausgeführt sein.The injection nozzle 1 can be of any known design or can also be designed differently in terms of its external design.

Der Kolhen2 kann gleichfalls bekannter Ausführung sein und enthält die in seinem Kopf vorgesehene Verbrennungskarnmer 3. Diese ist wulstförmig aus dem Kolben ausgespart und im Umfang vieleckig entsprechend den Erfahrungen der neueren Technik. Dieser Umfang kann auch kre-isförmig sein. Der mittlere kegelförtnige Teil endet in, einer der Einspritzdüse gegenüberliegenden eben-en Fläche.The piston 2 can also be of a known design and contains the combustion chamber 3 provided in its head. This circumference can also be circular. The middle, conical part ends in a flat surface opposite the injection nozzle.

Dieser kegelförinige Teil kann aus dem Kolben selbst gebildet oder auch angesetzt sein. In letzterem Fall kann er auch aus anderem Werkstoff bestehen.This conical part can be formed from the piston itself or also be scheduled. In the latter case, it can also consist of a different material.

In der ebenen Fläche 4' des Kegels 4 ist eine Aussparung41 angeordnet, die, von kugeliger oder zylindrische,r Form sein kann und in welche die Düsel im oberen Totpunkt des Kolben-, eintaucht. Diese Ausgestaltung des Kolbenkopfes beeinflußt auf wesentliche Weise den Verlauf der Einspritzung des Brennstoffstrahles in dem Sinne, (laß ein Mitreißen der kohlehaltigen Rückstände der Verbrennung erfolgt und dadurch ihre Anhäufung verhindert wird. Zugleich bewirkt der Strom eine Kühlung der Düse.A recess 41 is arranged in the flat surface 4 'of the cone 4, which can be of spherical or cylindrical shape and in which the nozzle in the top dead center of the piston, immersed. This configuration of the piston head has an influence in an essential way the course of the injection of the fuel jet in the Senses, (let the carbonaceous residues of the combustion take place and thereby preventing their accumulation. At the same time, the electricity creates a cooling effect the nozzle.

Claims (2)

PATENTANSPRnCHF 1. E, inspritzbrennkraftmaschine, bei welcher zur Erzeugung eines Wirbelzustandes an der Einspritzdüse der Kolbenboden mit einer Aussparung beim Kompressionshub in unmittelbare Nähe der Düsenspitze gelangt, dadurch gekennzeichnet, daß die sich der Einspritzdüse (1) nähernde Kolbenwand als ebene Fläche (4') ausgebildet ist, in der die, Aussparung (4') enthalten ist, in welche die Spitze der Einspritzdüse (1) eintritt, und daß diese Fläche am Gipfel einer Erhebung (4) liegt, die aus einer tiefen Aussparung (3) am Kolben (2) aufsteigt und mit der Fläche, (4') eine scharfe Kante bildet. PATENT CLAIM 1. E, internal combustion engine in which the piston head with a recess comes into close proximity to the nozzle tip during the compression stroke to generate a vortex condition at the injection nozzle, characterized in that the piston wall approaching the injection nozzle (1) is a flat surface (4 ') is formed, in which the 'recess (4') is contained, in which the tip of the injection nozzle (1) enters, and that this surface is at the summit of an elevation (4) which emerges from a deep recess (3) on the piston ( 2) rises and forms a sharp edge with the surface, (4 '). 2. Einspritzbrennkraftmajschine nach Anspruch 1, dadurch gekennzeichnet, daß der am Kolbenkopf aufragende Ansatz (4), in den die Spitze der Einspritzdüse (1) beim Kompressionshub eintritt, sich in der Mitte einer tiefen am Kolbenkopf (2) vorgesehenen wulstförmigen Aussparung (3) befindet, deren Umfangswände im wesentlichen senkrecht auf die Oberfläche des Kolbenkopfes (2) treffen, um einen scharfkantigen Umriß zu erzeugen. In Betracht gezogene Druckschriften: Deutsche Patentschrift Nr. 509 331; britische Patentschrift Nr. 410 047.2. Ein Injektbrennkraftmajschine according to claim 1, characterized in that the projection (4) protruding from the piston head, into which the tip of the injection nozzle (1) enters during the compression stroke, is in the middle of a deep bulge-shaped recess (3) provided on the piston head (2) is located, the circumferential walls of which meet the surface of the piston head (2) substantially perpendicularly in order to produce a sharp-edged outline. Documents considered: German Patent No. 509 331; British Patent No. 410 047.
DEM25553A 1954-04-18 1954-12-20 Injection internal combustion engine Pending DE1006205B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1006205X 1954-04-18

Publications (1)

Publication Number Publication Date
DE1006205B true DE1006205B (en) 1957-04-11

Family

ID=11428988

Family Applications (1)

Application Number Title Priority Date Filing Date
DEM25553A Pending DE1006205B (en) 1954-04-18 1954-12-20 Injection internal combustion engine

Country Status (1)

Country Link
DE (1) DE1006205B (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE509331C (en) * 1927-11-01 1930-10-08 Jon Espholin Injection internal combustion engine for liquid fuels
GB410047A (en) * 1933-12-14 1934-05-10 Paul Rudolph Hasson Improvements relating to the inlet passages of the cylinders of internal combustion engines

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE509331C (en) * 1927-11-01 1930-10-08 Jon Espholin Injection internal combustion engine for liquid fuels
GB410047A (en) * 1933-12-14 1934-05-10 Paul Rudolph Hasson Improvements relating to the inlet passages of the cylinders of internal combustion engines

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