PROBLEM TO BE SOLVED: To separate low-octane number fuel which is favorable in ignitability at a start or the like from normal fuel.SOLUTION: This fuel tank with a separation membrane has: a first chamber 21a; a second chamber 21b arranged at a lower part of the first chamber 21a; a bulkhead 31 for partitioning the first chamber 21a and the second chamber 21b; and at least one separation membrane 32 arranged at the bulkhead 31. The first chamber 21a has a fuel introduction port 27 and a first discharge port 22a. The second chamber 21b has a second discharge port 22b. A low-molecular weight component which is contained in raw fuel in the first chamber 21a permeates the separation membrane 32 by the gravity, and is introduced into the second chamber 21b. The low-molecular weight component (low-molecular weight fuel) introduced into the second chamber 21b is favorable in ignitability at a start or the like, and supplied to an internal combustion engine from the second discharge port 22b according to the necessity at the start and a low-load operation.SELECTED DRAWING: Figure 1

    【課題】通常の燃料から、始動時等の着火性の良い低オクタン価燃料を分離する。【解決手段】本開示の分離膜付き燃料タンクは、第1室21a、第1室21aの下部に配置された第2室21b、第1室21aと第2室21bとを区画する隔壁31、および隔壁31に配置された少なくとも1つの分離膜32を備える。第1室21aは燃料の導入口27と、第1吐出口22aとを有する。第2室21bは第2吐出口22bを有する。第1室21a内の原燃料に含まれる低分子量成分が重力により分離膜32を透過して第2室21bに導入される。第2室21b内に導入された低分子量成分(低分子量燃料)は、始動時等の着火性がよい成分であり、始動時や低負荷の運転時に必要に応じ、第2吐出口22bから内燃機関に供給される。【選択図】図1


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    Title :

    FUEL TANK WITH SEPARATION MEMBRANE


    Additional title:

    分離膜付き燃料タンク


    Contributors:

    Publication date :

    2018-10-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    F02M Zuführen von Brennstoff-Luft-Gemischen oder deren Bestandteilen bei Brennkraftmaschinen allgemein , SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES



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