Self-pumping fluid springs (pumps for liquids F04)

Full Title

Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load > Spring characteristics (B60G17/005, B60G17/015 take precedence) > fluid spring characteristics > Self-pumping fluid springs (pumps for liquids F04)