Drive system, particularly for small satellites for producing moment change of satellite and for use as sustainer engine for satellite, has engine operated with solid fuel and supplying device for solid fuel

摘要

The drive system (10) has an engine (12) operated with a solid fuel, a supplying device (20) for the solid fuel and a solid fuel supply (14). The solid fuel supply consists of monolithic solid fuel elements (16,18) in form of a helix. A guiding device has a guide bush, which is made from a sliding friction-poor material. The sliding friction-poor material is selected from the fluoropolymers. The fluoropolymers are full-fluoridated homopolymers or copolymer. The fluoropolymers has polytetrafluorethylen (PTFE), chemically modified PTFE and cast operated PTFE.