| 摘要 |
The capacity unit consists of a hollow body (2), e.g. of an elastomer such as rubber, basically circular in section when at rest, set inside a rigid shell (3). The body is capable of supporting an elastic expansion at least in a radial direction from its state of rest, when its wall (21) is of varying thickness. The wall (21) makes contact with the shell in at least two zones (Z1, Z2) simultaneously, at least for a first instant volume. The two zones are separated by a third zone (Z3) in which the wall is of a different thickness (E3) to the thicknesses (E1, E2) in the first two zones.
|
