For every combination, five experiments with different fuel injection arrangement were carried out, and every experiment was actualized with three equivalence ratios by adjusting a throttling venture.

• 采用正交试验设计方法组织燃烧室形面调节，每个形面进行5种喷注位置的试验，每次试验通过文氏管调节燃料流量实现3个当量比的燃烧室工况。