| 摘要 |
A nozzle for two-phase injection of fuel with distributed fuel system of combustion engine has a body with connecting fuel channels placed there and spring with two pushers placed at its ends, filter, nut, sprinkler attached with nut to the body through spacer, needle and slide valve placed at two sides of spring and interacting with it through pushers. The slide valve is arranged as differential piston with larger D and small d diameters related by formula d =(0.5-0.9)D,with maximal stroke being 0.50-1.50 of maximal stroke of needle and for simultaneous provision of two-phase injection of fuel and for increase of level of its pressure smaller diameter d is chosen from condition of beginning of displacement of piston at instant when value of fuel pressure is equal to 1.05-1.15 of value of pressure of beginning of needle displacement. In spacer placed between the sprinkler and the body a channel is provided for provision of inner draining, this connects pocket of sprinkler to spring cavity where auto-control valve is placed. |
