| 摘要 |
This invention is useful in the agricultural industry, particularly to milking units. The aim of the invention is to provide the cow with an adequate and stable vacuum regime, which can be changed, appropriate for biologically controlled milking process implementation.The pulsator consists of two aerodynamically linked four-cylinder pulsators of membrane-valve type with a control, a constant vacuum, and a changeable vacuum and atmospheric pressure cylinders. It is distinguishable from existing pulsators as the channel, which links both control cylinders, has been added to a crossing channel (with a control screw), which is then connected with a changeable vacuum cylinder and guarantees equal airflow to both derivations of the channel.
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