| 摘要:针对二冲程低压双燃料发动机气体燃料系统双壁燃气管制造，从工装、焊接、机加工等方面对制造过程的要点和难点进行解析。双壁管的成功开发与应用可降低采购成本，缩短交货周期，实现该关键零部件的自主开发与制造。 |
| 关键词: 双壁管 制造 焊接 发动机 |
|
| Manufacturing of Double-Wall Gas Pipe of Two-Stroke Low-Pressure Dual-Fuel Engine |
| YAO Jian,LI Haitao |
| Winterthur Gas & Diesel （Shanghai） Co.，Ltd.，Shanghai 201208，China |
| Abstract:Regarding the manufacturing of double-wall gas pipes in the gas fuel system of a two-stroke low-pressure dual-fuel engine，the key points and difficulties in the manufacturing process are analyzed from aspects of tooling，welding，and machining，etc.The successful development and application of double-wall pipes can reduce procurement costs，shorten delivery cycles，and realize independent development and manufacturing of this critical component. |
| Key words: double-wall pipe manufacturing welding engine |
