A MULTI NOZZLE DEVICE FOR PRECISE PRESSURE CONTROL OF GASES AND FLUIDS

摘要

According to an aspect of the present invention, multi nozzle device comprises hollow inner cylinder and an outer cylinder. The hollow inner cylinder may have multiple nozzles along the length of said inner cylinder. The hollow inner cylinder may be coupled to a first pressure. The outer cylinder may be mounted over said inner cylinder such that internal diameter of said outer cylinder is in push fit with external diameter of said inner cylinder. The push fit is chosen to minimize friction to enable the outer cylinder to take place of the flapper. The outer cylinder is moved exposing the nozzles and the first pressure is reduced by a proportion related to number of nozzles exposed. In one embodiment, multi nozzle device further comprise, an 0 ring to prevent leakage of pressure when the inner cylinder and the outer cylinder are tight fit. In another embodiment, pressure is pneumatic pressure which may be coupled to the hollow part of the inner cylinder such that pneumatic pressure is released through the nozzles when the outer cylinder is moved exposing the nozzles.

主权项

1. A pressure controlling device comprising:
a hollow inner cylinder having plurality of nozzles along the length of said inner cylinder wherein the inner cylinder is coupled to a first pressure; and an outer cylinder mounted over said inner cylinder, wherein internal diameter of said outer cylinder is in push fit to slide over external diameter of said inner cylinder, wherein when the outer cylinder is moved by a first distance in first direction from a reference point a first count of nozzles are exposed and when the outer cylinder is moved by a second distance in second direction opposite to the first direction a second count of nozzles are closed thus varying the first pressure in relation to the first and the second distance.