It shows that the effects of back pressure on penetration, spray coneAngle, and decline rate of centerline velocity and concentration of the spray are greater than that of fuel injection pressure.
背压对贯穿距离、喷雾锥角、喷雾轴心速度和浓度衰减率的影响均大于启喷压力。
2
The device is posterior cutter grinding to drill in cone surface grinding method that it can vouch for drill with reasonable backAngle, and symmetry precision is high.