Variable Fluid Flow Apparatus with Integrated Filter

摘要

The subject matter of this specification can be embodied in, among other things, a fluid flow trim apparatus includes an outer housing defining a cavity having an interior surface and an end wall having an orifice therethrough, a valve body comprising a first valve portion disposed at least partly within the cavity, the first valve portion and the interior surface defining a first fluid flow path, a second valve portion in contact with the interior surface and defining a second fluid flow path. A third valve portion is disposed at least partly within the cavity between the first and second valve portions. The second fluid flow path fluidically connects the third valve portion to a trim cavity. A filter media extends from the first valve portion to the second valve portion and divides a third fluid flow path fluidically connecting the first and seconds fluid flow paths.

主权项

1. A fluid flow trim apparatus comprising:
an outer housing having an elongate body extending from a first end to a second end opposite the first end and defining a cavity comprising an interior surface with a first cross-sectional area and an end wall at the second end, the end wall having an orifice therethrough with a second cross-sectional area less than the first cross-sectional area; a valve body having an elongate body and comprising:
a first valve portion disposed at least partly within the cavity and having a third cross-sectional area smaller than the first cross-sectional area, the first valve portion and the interior surface defining a first fluid flow path;a second valve portion in contact with the interior surface and having a channel formed therethrough defining a second fluid flow path, the second valve portion, the interior surface, and the end wall defining a trim cavity; anda third valve portion disposed at least partly within the cavity between the first valve portion and the second valve portion and having a fourth cross-sectional area smaller than the second cross-sectional area, the second fluid flow path fluidically connecting the third valve portion to the trim cavity; and a filter media extending from the first valve portion to the second valve portion and dividing a third fluid flow path fluidically connecting the first fluid flow path to the second fluid flow path.