| 摘要 |
PROBLEM TO BE SOLVED: To suppress occurrence of an abnormal sound caused by pressurizing a part of an air system without increasing capacity of a wet tank. SOLUTION: A front air suspension device 29 with high pressure used together with a low pressure air system 33 comprises air bellows 9 and 11, an air duct 35 for connecting the air bellows 9 and 11 to the wet tank 19 in a high pressure state, a first air tank 37 disposed in the air duct 35, a second air tank 39 disposed in the air duct 35 between the first air tank 37 and the wet tank 19, a check valve 41 disposed in the air duct 35 between the first air tank 37 and the second air tank 39. The second air tank 39 accumulates air for the wet tank 19 and the low pressure air system 33 when the air is supplied from the wet tank 19 to the low pressure air system 33.
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