| 摘要 |
Vacuum accumulator incorporating a vacuum vessel (15) for communication with a suction conduit (6), and with at least one vacuum accumulator vessel (20)interconnectable therewith via a stop valve (19), in turn connected to a vacuum pump (23) for charging of said vessels (15 and 20) with a vacuum under a limited volume, whereby the stop valve (19) is adapted to open more and more when the vacuum in the vacuum vessel (15) drops to a certain volume. <IMAGE> |
