SPRAYER FOR DIESEL ENGINE Russian patent published in 2019 - IPC F02M61/10 F02M61/18 

FIELD: machine building.

SUBSTANCE: invention relates to machine building, namely, to engine building, particularly, to diesel fuel system. Sprayer comprises housing (1) and locking needle (2). Housing has locking cone (3), sub-needle volume (4), spraying holes of first (5) and second (6) groups, wherein diffuser orifices of second group are larger than those of first group. Circular groove (10) on needle is made with clearance between generatrix (11) of annular groove and surface of locking cone (3). In initial position of needle inlet edges (8) of spraying holes of second group are located in height in range between planes of location of limiting edges (12 and 13) of groove, and when the needle moves and when it reaches the anvil, the holes of the second group are located along the height beyond the boundary plane of lower limiting (13) edge of the annular groove on the needle.

EFFECT: technical result is higher economic and environmental properties of diesel by arranging rational distribution of fuel on zones of combustion chamber with presence of relative correction of dynamics of different jets sprayed energy carrier and ensuring reliability of sprayer structure during its operation.

1 cl, 3 dwg