Prechamber
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图 1 | g00911858 |
(1) 螺栓
- 直径 ... 1/2
- 通过交替拧紧螺栓,将预燃室组件固定到缸盖孔中。 拧紧每个螺栓:
扭矩 ... 30 N·m (22 lb ft)
- 当预燃室组件固定到缸盖孔中后,拧松螺栓。
- 逐个地交替拧紧各个螺栓。
扭矩 ... 30 ± 5 N·m (22 ± 4 lb ft)
- 按照以下角度拧紧每个螺栓:
旋转度数 ... 30
- 按照以下角度再度拧紧每个螺栓:
旋转度数 ... 30
- 按照以下角度再度拧紧每个螺栓:
旋转度数 ... 60
注: 从初始扭矩 30 ± 5 N·m (22 ± 4 lb ft) 后的总旋转度数为 120 ± 5 度。 螺栓旋转度数不足可能会缩短螺栓的寿命。 螺栓旋转不够紧会导致垫片的受力不足, 继而可能造成冷却液漏入燃烧室。
(2) 螺塞
- 扭矩 ... 15 N·m (11 lb ft)
(3) O 形密封圈
装配之前,在 O 形密封圈上涂抹 5N-5561 硅润滑剂 。
(4) 单向阀
- 将单向阀拧紧至以下扭矩: ... 115 ± 15 N·m (85 ± 11 lb ft)
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