Steel pipe for automobile exhaust system
An automobile exhaust system and steel pipe technology, applied in the field of auto parts, can solve the problems of shortening the service life of the steel pipe body, high maintenance and replacement costs, and inconvenient disassembly and assembly, and achieve temperature reduction, low maintenance and replacement costs, and easy disassembly and assembly. convenient effect
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[0026] see Figure 1-3 As shown, a steel pipe for automobile exhaust system includes a pipe body 1, and an air inlet 11 and an exhaust port 12 are respectively arranged at both ends of the pipe body 1; at least two cooling pipes 2 are arranged on the pipe body 1, preferably Two cooling pipes 2 are arranged on opposite sides of the pipe body 1 respectively; perforations for the cooling pipes 2 to pass are arranged on the side wall of the pipe body 1, and the cooling pipes 2 correspond to the perforations one by one; the cooling pipes 2 include external connecting pipes 23 and inner connecting pipe 24; the outer connecting pipe 23 is located outside the pipe body 1, the inner connecting pipe 24 is located inside the pipe body 1, and the axis of the inner connecting pipe 24 is parallel to the axis of the pipe body 1;
[0027] One end of the outer connecting pipe 23 is provided with a cooling inlet 21, and the other end is provided with a clamping platform 3 and a limit ring 31; ...
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