| 摘要 |
The rail vehicle which is supported on three bogies is provided with spring suspension systems for each bogie. A primary suspension system supports each bogie on at least a pair of drive axles and secondary suspension systems support the vehicle chassis on the bogies. The combined spring constant of the suspension systems for the middle bogie is made softer, or less than, the combined spring constants for the outer bogies to equalize the load relief on the two forward bogies during travel.
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