BE332860A - - Google Patents

Info

Publication number
BE332860A
BE332860A BE332860DA BE332860A BE 332860 A BE332860 A BE 332860A BE 332860D A BE332860D A BE 332860DA BE 332860 A BE332860 A BE 332860A
Authority
BE
Belgium
Prior art keywords
combustion chamber
engines
additional combustion
air
bell
Prior art date
Application number
Other languages
French (fr)
Publication of BE332860A publication Critical patent/BE332860A/fr

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
    • F02B23/00Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/02Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
    • F02B23/06Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
    • F02B23/0675Other 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
    • 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
    • F02B19/14Engines characterised by precombustion chambers with compression ignition
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B23/00Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/02Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
    • F02B23/06Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
    • F02B23/0603Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston at least part of the interior volume or the wall of the combustion space being made of material different from the surrounding piston part, e.g. combustion space formed within a ceramic part fixed to a metal piston head
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B23/00Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/02Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
    • F02B23/06Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
    • F02B23/0633Other 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B2275/00Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/16Indirect injection
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B23/00Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/02Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
    • F02B23/06Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
    • F02B23/0618Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston having in-cylinder means to influence the charge motion
    • F02B23/0621Squish flow
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00Engines characterised by air compression and subsequent fuel addition
    • F02B3/06Engines characterised by air compression and subsequent fuel addition with compression ignition
    • 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

Landscapes

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

Description

       

   <Desc/Clms Page number 1> 
 



  Moteur à huile comportant une chambre de combustion supplé- mentaire. 



   La présente invention concerne les moteurs à huile comportant une chambre supplémentaire de combustion, et est applicable aussi bien aux moteurs à quatre temps qu'aux moteurs à deux temps, La caractéristique de l'in- vention consiste en ce que la chambre de combustion supplé- mentaire possède deux ou plusieurs parois et qu'au moins la paroi intérieure est formée par une pièce rapportée en forme de cloche. Cette pièce peut se remplacer facilement, de sorte qu'en employant des pièces rapportées de grandeurs différentes, il est possible de mettre la chambre de com- 

 <Desc/Clms Page number 2> 

 bustion supplémentaire   dans,le   rapport voulu avec la chambre de combustion principale.La chambre d'air existant entre les parois de la chambre de combustion supplémentaire forme un isolement pour la pièce rapportée. 



   Il est à remarquer qu'il est déjà connu, dans les moteurs à combustion interne, de munir le fond du piston d'une pièce rapportée pour protéger le piston de   Inaction   de la chaleur et pour faire varier la chambre de combustion. 



   Le dessin annexé représente, en coupe longitudina- le, plusieurs exemples de réalisation de l'objet de l'inven- tion. a désigne le   piston$ 1   le cylindre   et ±   la tuyère combustible qui peut être établie aussi bien pour   l'injec-   tion du combustible sans air que pour   l'injection   au moyen d'air comprimé. Dans tous les cas représentés, la chambre de combustion supplémentaire est formée par une pièce rapportée k en forme de cloche qui est introduite dans une chambre pro- tectrice ou isolante h. 



   Suivant la Fig. 1, la chambre de combustion supplé- mentaire se trouve dans le piston a de la machine. La tuyère   d'injection ±   a la forme d'un organe de refoulement qui, lors- que le piston est au point mort supérieur, s'engage avec un jeu dans la chambre de combustion supplémentaire. La pièce rapportée k est maintenue par un anneau de fixation d. Entre celui-ci et la cloche rapportée, on peut disposer une ou plu- sieurs garnitures d'étanchéité. 



   Dans le cas de la Fig. 2, la chambre de combustion supplémentaire présente un rétrécissement ou point d'étrangle- ment f. Ce rétrécissement est ici créé dans   Panneau   de fixa- tion qui s'engage par dessus la cloche reportée, mais il peut également être ménagé dans la cloche rapportée k elle- même. La tuyère   à     combustible c.   et l'étrangelement f sont dis- 

 <Desc/Clms Page number 3> 

 posés dans le même axe de fagon que le combustible soit injecté au centre de   l'air   refoulé à travers l'étranglement pour gagner la chambre de combustion supplémentaire.

   En avant du point d'étranglement est avantageusement disposé un élargissement ±, en forme d'entonnoir, destiné à favoriser le mélange intime du combustible et de l'air* 
Dans ltexemple de réalisation de la Fig.   3,   la chambre de combustion supplémentaire se trouve dans la cu- lasse du cylindre, La tuyère ± est en conséquence disposée dans la paroi latérale du cylindre, L'élargissement g situé en face de la tuyère, en avant du point d1 étranglement f, est ici formé dans l'épaisseur de la culasse du cylindre. 



   La Fig. 4 montre la disposition de la chambre de combustion supplémentaire dans la paroi du cylindre. On a supposé ici   à   titre d'exemple le cas d'un moteur   à   deux pistons se déplaçant en sens inverses. Entre les pistons se trouve la chambre de combustion i à laquelle se raccorde latéralement la chambre de combustion supplémentaire. La tuyère ± est également disposée dans la paroi latérale du cylindre. 



   Moyennant remploi de pièces rapportées k de gran- deurs différentes, il est possible de faire varier le rapport' entre les deux parties de la chambre de combustion ainsi que la grandeur de la chambre de combustion même, La mise en marche du moteur à l'état froid peut ainsi également être facilitée. Les pièces rapportées en forme de cloche   à   paroi mince peuvent se dilater sans entrave sous l'influence de la chaleur de la combustion, sans que cela ait d'action sur la paroi de la chambre isolante, On évite ainsi la formation de craquelures, 

 <Desc/Clms Page number 4> 

 
L'invention peut être appliquée aux   moteurs b,   huile de tous genres, c'est-à-dire aux moteurs à allumage spontané, aux moteurs à allumage spécial pour le démarrage et aux moteurs à culasse incandescente.

   Dans les exemples représentés, le moteur est destiné à fonctionner à deux temps; l'arrivée d'air et l'échappement se font donc d'une manière connue au moyen de lumières commandées par le piston .L'invention convient naturellement aussi pour tous les moteurs dans lesquels des soupapes commandées spéciales sont nécessaires pour l'admission d'air et pour l'échappement et parmi lesquels les moteurs à quatre temps sont les plus   importants.   



    REVENDICATIONS S   
 EMI4.1 
 ##### 
1.- Moteur à huile comportant une chambre de com- bustion supplémentaire, caractérisé en ce que cette chambre possède deux ou plusieurs parois et en ce qu'au moins la paroi intérieure est constituée par une pièce rapportée en forme de cloche. 



   2. - Moteur à huile suivant la revendication 1, ca- ractérisé en ce qu'un espace d'air existe entre les parois de la chambre de combustion supplémentaire.



   <Desc / Clms Page number 1>
 



  Oil engine with an additional combustion chamber.



   The present invention relates to oil engines comprising an additional combustion chamber, and is applicable both to four-stroke engines and to two-stroke engines. The characteristic of the invention consists in that the combustion chamber supplements - mentaire has two or more walls and at least the inner wall is formed by an insert in the form of a bell. This part can be easily replaced, so that by using inserts of different sizes, it is possible to put the control chamber.

 <Desc / Clms Page number 2>

 additional bustion in the desired relationship with the main combustion chamber. The air chamber existing between the walls of the additional combustion chamber forms an insulation for the insert.



   It should be noted that it is already known, in internal combustion engines, to provide the bottom of the piston with an added part to protect the piston from inaction of heat and to vary the combustion chamber.



   The appended drawing represents, in longitudinal section, several exemplary embodiments of the object of the invention. a designates the piston $ 1 the cylinder and ± the fuel nozzle which can be set up both for injection of fuel without air or for injection by means of compressed air. In all the cases shown, the additional combustion chamber is formed by a bell-shaped insert k which is introduced into a protective or insulating chamber h.



   According to FIG. 1, the additional combustion chamber is located in the piston a of the machine. The ± injection nozzle has the form of a discharge member which, when the piston is in upper dead center, engages with play in the additional combustion chamber. The attached part k is held by a fixing ring d. Between the latter and the attached bell, one or more gaskets can be placed.



   In the case of FIG. 2, the additional combustion chamber has a constriction or choke point f. This constriction is created here in the Fixing panel which engages over the postponed bell, but it can also be made in the attached bell k itself. The fuel nozzle c. and the strangely f are dis-

 <Desc / Clms Page number 3>

 laid in the same axis so that the fuel is injected in the center of the air discharged through the throttle to gain the additional combustion chamber.

   In front of the throttle point is advantageously arranged a widening ±, in the shape of a funnel, intended to promote the intimate mixing of fuel and air *
In the exemplary embodiment of FIG. 3, the additional combustion chamber is located in the cylinder head, The ± nozzle is therefore placed in the side wall of the cylinder, The widening g located in front of the nozzle, in front of the constriction point f, is here formed in the thickness of the cylinder head.



   Fig. 4 shows the arrangement of the additional combustion chamber in the cylinder wall. We have assumed here by way of example the case of a motor with two pistons moving in opposite directions. Between the pistons is the combustion chamber i to which the additional combustion chamber is laterally connected. The ± nozzle is also arranged in the side wall of the cylinder.



   By re-employing add-ons k of different sizes, it is possible to vary the ratio between the two parts of the combustion chamber as well as the size of the combustion chamber itself. cold state can thus also be facilitated. The thin-walled bell-shaped inserts can expand unhindered under the influence of the heat of combustion, without this having any effect on the wall of the insulating chamber, thus preventing the formation of cracks,

 <Desc / Clms Page number 4>

 
The invention can be applied to engines b, oil of all kinds, that is to say to spontaneous ignition engines, to engines with special ignition for starting and to engines with incandescent cylinder head.

   In the examples shown, the engine is intended to operate in two strokes; the air inlet and the exhaust are therefore effected in a known manner by means of lights controlled by the piston. The invention is naturally also suitable for all engines in which special controlled valves are required for the intake of air. air and exhaust, of which four-stroke engines are the most important.



    CLAIMS S
 EMI4.1
 #####
1.- Oil engine comprising an additional combustion chamber, characterized in that this chamber has two or more walls and in that at least the inner wall is constituted by an insert in the form of a bell.



   2. - Oil engine according to claim 1, charac- terized in that an air space exists between the walls of the additional combustion chamber.


    

Claims (1)

3.- Moteur à huile suivant la revendication 1, caractérisé en ce que la pièce rapportée est fixée au moyen d'un anneau particulier. 3.- Oil engine according to claim 1, characterized in that the attached part is fixed by means of a particular ring.
BE332860D BE332860A (en)

Publications (1)

Publication Number Publication Date
BE332860A true BE332860A (en)

Family

ID=11714

Family Applications (1)

Application Number Title Priority Date Filing Date
BE332860D BE332860A (en)

Country Status (1)

Country Link
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