| 摘要 |
A leveling valve (30) is provided, of the type that lets air flow from a pressured source (40) into an airbag (24) and that lets air flow from the airbag to the atmosphere, to maintain a predetermined airbag height, which avoids jacking wherein the height of the airbag repeatedly increases as the vehicle moves over a rough road. A pair of inserts in the leveling valve are selected so the passage of the insert that passes pressured air to the airbag is made significantly smaller in diameter than the passage of the insert that passes air from the airbag to the atmosphere.
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