Drive mechanism for fast and controlled separation of two coupled elements.

摘要

An injection-control mechanism, which can be used in particular on a spacecraft, comprises a resilient element (36) such as a spring or a gas capacity, placed in between a drive element (18) and a pushing element (26). The driving energy supplied, for example, by a pyrotechnic charge (24) is applied to the drive element (18) which has a limited travel. An appropriately determined proportion of this energy is transmitted to the resilient element (36) which releases it to the pushing element (26). The speed and the acceleration are thus perfectly controlled. The mechanism can also effect the separation of the pieces before ejection. <IMAGE>