Injection unit for an internal combustion engine

Details Injection unit for an internal combustion engine Injection unit for an internal combustion engine

F - Mech Eng,Light,Heat,Weapons

02

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F02M 25/12 (2006.01) F02M 7/24 (2006.01) F02M 31/20 (2006.01) F02M 33/02 (2006.01) F02M 37/00 (2006.01) F02M 53/04 (2006.01) F02M 55/00 (2006.01) F02M 55/02 (2006.01) F02M 63/00 (2006.01) F02M 63/02 (2006.01) F02M 69/04 (2006.01)

Patent

CA 2514025

The invention relates to a method for the injection of fuel into an internal combustion engine, whereby the fuel is firstly enriched in a gas enrichment device (20) with a gas or gas mixture, in particular oxygen or air. The fuel is atomised and the gas or gas mixture introduced into the atomised fuel and the enriched fuel is then injected directly into at least one cylinder (12), or indirectly into a preceding region (17), in particular, the inlet manifold of the engine with the result of further atomisation. The fuel, at least in the enriched state, is cooled up until the subsequent atomisation such as to prevent a release of the gas or gas mixture from the fuel before said subsequent atomisation. The invention further relates to an injection unit for carrying out said method.

La présente invention concerne un procédé d'injection de carburant dans un moteur à combustion interne, selon lequel le carburant est d'abord, dans un dispositif d'enrichissement en gaz (20), enrichi avec un gaz ou mélange gazeux, en particulier de l'oxygène ou de l'air, le carburant étant pulvérisé et le gaz/mélange gazeux étant amené dans le carburant pulvérisé. Ensuite, le carburant ainsi enrichi est injecté directement dans au moins un cylindre (2) ou indirectement dans une zone (17) située en aval, en particulier dans la conduite d'aspiration du moteur, de façon à subir une pulvérisation finale. Le carburant est au moins à l'état enrichi, refroidi jusqu'à sa pulvérisation terminale, de sorte qu'une sortie du gaz/mélange gazeux du carburant avant sa pulvérisation finale est empêchée. La présente invention concerne en outre un système d'injection pour la mise en oeuvre de ce procédé.

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