Abstract:

Based on analyzing the 45t locomotive’s air circuit system, the author points out the problems in the air circuit system and makes optimizations. On the other hand, the design idea for the principle of the brake structure, the calculation of the reliability with brake force, the improvement of the air circuit system’s dryness, air quantity, pressure precision and valve are introduced. The paper can provide reference for similar air circuit systems in the future.

Key words: frequencyvariable locomotives, air circuit system, brake principle, brake force