DIESEL ENGINE ATOMIZER SPRAYER Russian patent published in 2017 - IPC F02M61/10 

FIELD: engine devices and pumps.

SUBSTANCE: atomizer sprayer has a body with conical seat and a needle positioned therein and having sealing and damping band at base of cone that contact along its entire width with seat conical surface. A throttling cone is made behind the sealing band on the needle with angle larger than angle of seat cone. The sealing and damping band of the needle is brought closer to the surface of the seat when it is fitted creating a cushioning effect by pinching fuel in a narrow slit sharply reducing motion speed of the needle before physical contact of roughness ridges of approaching surfaces.

EFFECT: increase of atomizer sprayer service life due to increased efficiency of shock load damping in conical seal by fitting the needle on the seat softly and at low speed before the contact of surface roughness ridges of conical seal surfaces, and increasing service life of conical seal and sprayer as a whole.

2 dwg