摘要 |
Fluid-tight transmission comprising an internal cogwheel (19) with N-n teeth in cooperation with an external cogwheel (29) with N teeth. The internal cogwheel (1) is drivingly influenced by an eccentric (7; 17) via radially arranged push rods (10) encapsulated in respective bellows (12). The bellows are closely connected with a housing (3) comprising the external cogwheel (2). A fluid-tight barrier is thereby formed between a first rotatable element (8; 16), which drives the eccentric (7; 17), and a second rotatable element (14).
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