초록 ▼

A stacked-disc structure is comprised of a stack of annular discs (13) scalloped along the outer edge to provide lobes (13a) and etched on one side to provide lands (13a). A web (13d) is retained in the lobes to strengthen the discs so that they will not collapse due to high fluid pressure. The stac

A stacked-disc structure is comprised of a stack of annular discs (13) scalloped along the outer edge to provide lobes (13a) and etched on one side to provide lands (13a). A web (13d) is retained in the lobes to strengthen the discs so that they will not collapse due to high fluid pressure. The stack of discs is retained by a housing (10) having a fluted interior wall to retain the ends of the lobes. End plates (11 and 12) secure the stack of discs with a spacer (14) at one end having lands (14a) on lobes which match the lobes of the stacked discs to allow fluid to flow into, or out of, the spaces between the lobes of the stacked discs. The spaces between the lands on the etched discs provide passages for fluid flow into or out of the hollow core of the stack. The height of the lands (i.e., depth of the etch) determines the size of the smallest particle that will be permitted to flow through. The stacked-disc structure may be connected to the inlet of a valve, or be incorporated into the valve housing on the inlet side of the valve seat to assure substantially constant fluid velocity, and thereby reduce valve noise when the valve is operated.

대표청구항 ▼

A stacked-disc structure comprising a stack of annular discs shaped around their outer edge to provide lobes, each disc being etched in one face to provide lands that define straight passageways in each lobe from the outer edge into a common passageway extending from near the tip of the lobe to a ho

A stacked-disc structure comprising a stack of annular discs shaped around their outer edge to provide lobes, each disc being etched in one face to provide lands that define straight passageways in each lobe from the outer edge into a common passageway extending from near the tip of the lobe to a hollow core, each of said discs being stacked to place the etched face thereof against an unetched face of the next disc, and with said lands aligned, housing means for retaining said stacked discs within an enclosure by the tips of their lobes, leaving spaces between lobes for fluid flow through said housing means, said housing means including apertures for fluid into and out of said housing means, means at one end of said stack of annular discs for permitting fluid to flow freely only into said spaces between said stack and said housing means, and means at the other end of said stack of annular discs for preventing fluid flow from exiting said spaces between said lobes and said housing means except through straight passageways and common passageways between discs, and then through said hollow core. A stacked disc structure as defined in claim 1 or 2 for use as a filter wherein said passageways in said lobe are etched to a depth effective in filtering a specific size particle from said fluid flow.