Direct-jetting nozzle

The invention discloses a direct-jetting nozzle. The direct-jetting nozzle comprises a nozzle body and a flow guiding pillar, and an oil jetting hole is formed in the inner part of the nozzle body; and the flow guiding pillar is arranged in the nozzle body and stretches into the oil jetting hole, an axis of the flow guiding pillar and an axis of the oil jetting hole are coincident, wherein a diameter ratio value range of the flow guiding pillar and the oil jetting hole is 0.6-0.9. According to the direct-jetting nozzle, the compact space structure of the direct-jetting nozzle is retained, thearranged flow guiding pillar takes full advantage of a principle of oil film atomization, so that the atomization effect of the direct-jetting nozzle is improved, and meanwhile the atomizing angles are enlarged obviously; and the atomization and the combustion of fuel oil are facilitated greatly, and the combustion chamber performance can be improved obviously. 本申请公开了种直射喷嘴，所述喷嘴包括：喷嘴本体，所述喷嘴本体内部具有喷油孔；和导流柱，所述导流柱设置于所述喷嘴本体内且伸入