FLOW DEVICE AND METHODS OF CREATING DIFFERENT PRESSURE DROPS BASED ON A DIRECTION OF FLOW

摘要

A flow device includes a flow-through region comprising at least one stage and configured to create a first pressure drop across the flow-through region in response to flow through the flow-through region in a first direction and a second pressure drop in response to flow through the flow-through region in a second direction, the first pressure drop being less than the second pressure drop under the same flow rates.