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BE345034A - - Google Patents

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Publication number
BE345034A
BE345034A BE345034DA BE345034A BE 345034 A BE345034 A BE 345034A BE 345034D A BE345034D A BE 345034DA BE 345034 A BE345034 A BE 345034A
Authority
BE
Belgium
Prior art keywords
fatty acids
oils
esters
chlorinated
higher fatty
Prior art date
Application number
Other languages
French (fr)
Publication of BE345034A publication Critical patent/BE345034A/fr

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00Liquid carbonaceous fuels
    • C10L1/02Liquid carbonaceous fuels essentially based on components consisting of carbon, hydrogen, and oxygen only
    • C10L1/023Liquid carbonaceous fuels essentially based on components consisting of carbon, hydrogen, and oxygen only for spark ignition

Landscapes

  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Lubricants (AREA)

Description

       

   <Desc/Clms Page number 1> 
 



  PROCEDE ET MOYEN POUR EVITER LE COGNEMENT CAUSE PAR LES 
COMBUSTIBLES POUR MOTEURS. 



   Par suite de la consommation constamment croissante de benzine,,ce combustible a diminué considérablement de qua-   lité   et en plus de la mauvaise   volatilité   et de la   pureté.re-     lative,, le   cognement ou tapement représente un inconvénient de la benzine,, qui se manifeste de manière particulièrement gènan- te et provoque très rapidement dans le moteur des avaries ou endommagements qui ne peuvent   'être   réparés qu'avec une forte dépense   d'argent.   



   11 faut distinguer dans le cognement deux genres dif- férents qui doivent être attribués à des causes différentes. 



   1 ) Le cognement par auto-allumage ( inflammation indépendam- ment de   l'étincelle   d'allumage). 



   2 ) Le cognement par détonation combustion à la vitesse du   son )*    
Dans les moteurs à forte compression au-dessus de 4,5 :  1)   le cognement   semble litre   du à ce que la température d'auto-allumage de la benzine est trop basse par rapport à celle du   benzol,.avec   lequel le phénomène du cognement ne se manifeste pas. 

 <Desc/Clms Page number 2> 

 maïs, de plus, les constituants légers ou volatils de la benzine ne peuvent pas supporter les pressions élevées et explosent en conséquence en partie déjà avant les constituants à point d'ébulltion plus élevé,.

   Ce phénomène provoque le cogne- ment dit cognement de détonation* 
Or on a trouvé que les acides gras supérieurs sont des agents anticognants parfaits,, qui améliorent en même temps notablement le rendement des combustibles pour moteurs,, qu'il s'agisse notamment d'acides gras aussi bien saturés que non saturés.. Il s'agit par exemple de l'acide oxalique,, de l'acide palmitique, de l'acide stéarique,, de l'acide élaîdique de l'acide   ricindique,   de l'acide   linoléique   de l'acide cérotique de l'acide myristique, de l'acide laruique. Mais on peut employ- er comme agents anticognants non seulement les acides mêmes, mais aussi leurs esters. par exemple on peut employer l'éthylester oléique, le méthylester oléique, le glycériunesthewr oléique,,par exemple la trioléine ainsi que des esthers mélangés de ce genre.

   On peut employer des esthers qui se composent pour la plus grande partie des glycérinesthers d'acide gras saturés ou non saturés, par exemple des huiles végétales ou animales,, telles que   l'hui-   le   d'olive,,   etc. Mais on peut employer aussi les produits halo- gènes de ce genre.. 



   Il est vrai qu'il est connu d'ajouter pour la commande de moteurs rotatifs ou de moteurs à deux temps au combustible de l'huile de ricin appartenant également aux huiles végétales.. 



    Mais   dans ce but on mélange de plus grandes quantités d'huile au combustible,, jusque 10% car dans ce cas l'huile de ricin doit servir de lubrifiant. Par contre d'après la présente   in-   vention de petites quantités de moins de 10% suffisent et ces quantités ne doivent pas agir comme lubrifiant mais comme agents anticognants et pour améliorer le combustible. De plus pour obtenir l'effet lubrifiant il est d'usage de n'ajouter que des huiles grasses qui sont employées.d'ordinaire au graissage 

 <Desc/Clms Page number 3> 

 des moteurs, tandis que dans la présente invention on se sert d'huiles grasses sans tenir compte de leur pouvoir lubrifiant,, ainsi qu'indiqué ci-dessus. 



   Les agents peuvent aussi être employés en combinaison avec d'autres agents anticognants. 

**ATTENTION** fin du champ DESC peut contenir debut de CLMS **.



   <Desc / Clms Page number 1>
 



  METHOD AND MEANS FOR AVOIDING KNOCKING CAUSED BY
ENGINE FUELS.



   As a result of the constantly increasing consumption of benzine, this fuel has considerably diminished in quality, and in addition to the poor volatility and relative purity, knocking or tapping is a disadvantage of benzine, which manifests itself in a particularly troublesome manner and very quickly causes damage or damage to the engine which can only be repaired with a large expenditure of money.



   It is necessary to distinguish in knocking two different kinds, which must be attributed to different causes.



   1) Knocking by auto-ignition (ignition independent of the ignition spark).



   2) Knocking by detonation combustion at the speed of sound) *
In engines with high compression above 4.5: 1) knocking seems to be liter due to the autoignition temperature of benzine is too low compared to that of benzol, with which the phenomenon of knocking does not manifest itself.

 <Desc / Clms Page number 2>

 maize, moreover, the light or volatile constituents of benzine cannot withstand the high pressures and consequently explode in part already before the constituents with a higher boiling point.

   This phenomenon causes the knocking known as detonation knock *
However, it has been found that higher fatty acids are perfect anticognizing agents, which at the same time significantly improve the efficiency of motor fuels, whether they are particularly fatty acids, both saturated and unsaturated. This is for example oxalic acid ,, palmitic acid, stearic acid ,, elaidic acid, ricindic acid, linoleic acid, cerotic acid, acid myristic, laruic acid. However, not only the acids themselves, but also their esters, can be used as anticharming agents. for example, oleic ethyl ester, oleic methyl ester, oleic glyceryl ester, for example triolein as well as such mixed esters can be employed.

   Esthers which consist for the most part of saturated or unsaturated fatty acid glycerinesters, for example vegetable or animal oils, such as olive oil, etc., can be employed. But halogen products of this kind can also be used.



   It is true that it is known to add, for the control of rotary engines or two-stroke engines to the fuel, castor oil also belonging to vegetable oils.



    But for this purpose, larger quantities of oil are mixed with the fuel, up to 10%, because in this case the castor oil must serve as a lubricant. On the other hand, according to the present invention, small amounts of less than 10% are sufficient and these amounts must not act as a lubricant but as anti-knocking agents and to improve the fuel. In addition, to obtain the lubricating effect, it is customary to add only fatty oils which are usually used for lubrication.

 <Desc / Clms Page number 3>

 engines, while in the present invention fatty oils are used without taking into account their lubricating power ,, as indicated above.



   The agents can also be used in combination with other anti-knocking agents.

** ATTENTION ** end of DESC field can contain start of CLMS **.


    

Claims (1)

L'effet technique particulier de l'utilisation des composés mentionnés consiste en ce qu'ils constituent d'une part des agents anticognants parfaits et des agents d'amétio- ration du rendement et quils ne provoquent d'autre part dans le moteur aucune corrosion des parties métalliques ni d'autres endommagements, et assurent une amélioration sans aucun inconvénients RESUME L'invention concerne un procédé et des agents pour éviter le cognement de combustibles pour moteurs tout en amé- liorant en même temps leur rendement,,et comporte les caracté. ris tiques ci-après : 1 ) l'emploi de petites quantités d'acide gras supérieurs comme addition à des combustibles; The special technical effect of the use of the compounds mentioned is that they are on the one hand perfect anti-knurling agents and performance enhancers and on the other hand do not cause corrosion in the engine. metal parts and other damage, and provide improvement without any drawback SUMMARY The invention relates to a method and agents for preventing the knocking of motor fuels while at the same time improving their efficiency, and includes the features of the invention. . risks below: 1) the use of small amounts of higher fatty acids as an addition to fuels; 2 ) l'emploi de petites quantités d'esthers d'acides gras supérieurs ; 3 ) l'emploi d'esthers oléique par exemple de trioléine; 40) l'emploi d'huiles qui se composent en grande partie d'esthers de glycérine d'acides gras saturés ou non sa- turés par exemple d'huile d'olive ou d'autres huiles ; 5 ) l'emploi de produits chlorés du type spécifié;, 6 ) un agent anticognant composé d'acides gras supérieurs le cas échéant en mélange avec d'autres agents antico gnants ; 7Ü) l'agent se compose d'esthers de l'acide oléique; 8Ü) il se compose d'huiles végétales ou animales; 9 ) il se compose d'acides gras supérieurs chlorés,, ou cite,,-.. thers chlorés d'acides gras ou d'huiles grasses chlorées. 2) the use of small amounts of esters of higher fatty acids; 3) the use of oleic esters, for example triolein; 40) the use of oils which consist largely of glycerin esters of saturated or unsaturated fatty acids, for example olive oil or other oils; 5) the use of chlorinated products of the type specified ;, 6) an anticognizing agent composed of higher fatty acids, where appropriate in admixture with other anticoagulant agents; 7Ü) the agent consists of esters of oleic acid; 8Ü) it consists of vegetable or animal oils; 9) It is composed of chlorinated higher fatty acids ,, or cites ,, - .. chlorinated thers of fatty acids or chlorinated fatty oils. Bruxelles, le 6 septembre 1927 **ATTENTION** fin du champ CLMS peut contenir debut de DESC **. Brussels, September 6, 1927 ** CAUTION ** end of field CLMS may contain start of DESC **.
BE345034D BE345034A (en)

Publications (1)

Publication Number Publication Date
BE345034A true BE345034A (en)

Family

ID=21113

Family Applications (1)

Application Number Title Priority Date Filing Date
BE345034D BE345034A (en)

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Country Link
BE (1) BE345034A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0410170A1 (en) * 1989-07-25 1991-01-30 Profi-Gas Ltd. Liquid fuel mixture, process for its preparation and application in two stroke engines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0410170A1 (en) * 1989-07-25 1991-01-30 Profi-Gas Ltd. Liquid fuel mixture, process for its preparation and application in two stroke engines

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