Hydraulic conveyer system for promoting hydraulic medium, has wings, which lies in promotion mode at outline, where wings are switched from promotion mode into rotating mode

摘要

The hydraulic conveyer system (1) has wings (11,12), which lies in a promotion mode at an outline (14). The wings are switched from the promotion mode into a rotating mode. The wing is provided at a distance in the rotating mode independently of the outline, in order to switch the promotion off to the hydraulic medium.