| 摘要 |
PURPOSE:To automatically adjust differential pressure generated between air springs due to the change of load in an air spring type truck for rolling stock. CONSTITUTION:A spring 7 is contractedly provided between pistons 4, 5 slidably fitted into a valve body 3, and springs 11, 12 are also contractedly provided in chambers 9, 10 formed between the springs 4, 5 and the respective end walls of the valve body 3. A duct 13 led out from an air spring 1 on the piston 4 side is communicated with the chamber 9, and the piston 5 on the opposite side is further communicated with the other chamber 10. The same applies to an air spring 2 on the piston 5 side. |
