FUEL INJECTION VALVE Russian patent published in 2017 - IPC F02M61/18 

FIELD: engines and pumps.

SUBSTANCE: provides a valve (1) of fuel injection comprising a nozzle plate (30) formed therein with a nozzle opening (31). Orifice (31) is configured so that the cross section of the flow part has an oval shape with the major axes (X1, X2) and small axes (Y1, Y2), wherein the orifice (31) is satisfied cone, wherein the cross-sectional flow portion increases from the end portion (31a) of the opening to the inlet side end portion (31b) opening on the outlet side. The second angle (θ2) representing the angle of intersection of the opposing portions (31e, 31f) of the inner wall surface of nozzle hole in an oblique sectional view along minor axes (Y1, Y2) the end portion (31a) holes and the inlet side end portion (31b) opening on the outlet side, larger than the first angle (θ1), which is the angle of intersection of the opposite portions (31c, 31d) surface of the inner wall of the nozzle opening in a longitudinal section along the major axes (X1, X2), the end portion (31a) of the opening on the inlet side and the end portion (31b) opening on the outlet side.

EFFECT: provision of a fine atomization of the injected fuel.

8 cl, 8 dwg