JPS6397796U

JPS6397796U -

Info

Publication number: JPS6397796U
Application number: JP19335286U
Authority: JP
Priority date: 1986-12-16
Filing date: 1986-12-16
Publication date: 1988-06-24

Description

[Brief explanation of drawings]

第１図は本考案の実施例による多段オリフイス
の断面図、第２図は第１図のＡ―Ａ断面図、第３
図は第１図のＢ―Ｂ断面図、第４図は本考案の異
なる実施例により多段オリフイスの断面図、第５
図は第４図のＣ―Ｃ断面図、第６図は第４図のＤ
―Ｄ断面図、第７図は第４図のＥ―Ｅ断面図、第
８図は第４図のスペーサ５の斜視図、第９図は従
来例の多段オリフイスの断面図である。１：多段オリフイス、２，４，６……２ｎ：オ
リフイスプレート、３，５，７……２ｎ―１：ス
ペーサ、２ｂ，４ｂ，６ｂ……２ｎ―２ｂ，３ｂ
，５ｂ，７ｂ……２ｎ―３ｂ：環状突條、４ｃ，
６ｃ，８ｃ……２ｎ_ｃ，３ｃ，５ｃ，７ｃ……２
ｎ―２ｃ：環状溝、２ｅ，４ｅ，６ｅ……２ｎ―
２ｅ，３ｅ，５ｅ，７ｅ……２ｎ―３ｅ：円柱状
凹所、４ｄ，６ｄ，８ｄ……２ｎ_ｄ，３ｄ，５ｄ
，７ｄ……２ｎ―１ｄ：円柱状突起、２１：上部
ケース、２２：流入孔、２３：下部ケース、２４
：流出孔、２５：オリフイスケース。 Fig. 1 is a sectional view of a multi-stage orifice according to an embodiment of the present invention, Fig. 2 is a sectional view taken along line AA in Fig. 1, and Fig.
The figures are a sectional view taken along line BB in Fig. 1, Fig. 4 is a sectional view of a multi-stage orifice according to a different embodiment of the present invention, and Fig. 5 is a sectional view of a multi-stage orifice according to a different embodiment of the present invention.
The figure is a cross-sectional view taken along line C-C in figure 4, and figure 6 is a cross-sectional view taken along line D in figure 4.
-D sectional view, FIG. 7 is a sectional view taken along line EE in FIG. 4, FIG. 8 is a perspective view of the spacer 5 in FIG. 4, and FIG. 9 is a sectional view of a conventional multi-stage orifice. 1: Multi-stage orifice, 2, 4, 6...2n: Orifice plate, 3, 5, 7...2n-1: Spacer, 2b, 4b, 6b...2n-2b, 3b
, 5b, 7b...2n-3b: Annular projection, 4c,
6c, 8c...2n _c , 3c, 5c, 7c...2
n-2c: annular groove, 2e, 4e, 6e...2n-
2e, 3e, 5e, 7e...2n-3e: cylindrical recess, 4d, 6d, 8d...2n _d , 3d, 5d
, 7d...2n-1d: Cylindrical projection, 21: Upper case, 22: Inflow hole, 23: Lower case, 24
: Outflow hole, 25: Orifice case.

Claims

[Claims for Utility Model Registration] (1) A plurality of cylindrical orifice plates each having orifice holes of different diameters, and a plurality of cylindrical spacers having the same outer diameter as the orifice plate. , an upper case and a lower case of an orifice case, each of which is formed by dividing a cylindrical container, which has an inflow hole and an outflow hole in its upper end face and lower end face, respectively, which communicate with the internal space thereof, into upper and lower halves at its body. In a multi-stage orifice formed by housing the orifice plates and spacers alternately stacked and housed in the internal space of the case, and joining the dividing surfaces of both the upper and lower cases, the orifice plates and spacers that are stacked and housed and are adjacent to each other are facing each other. A multi-stage orifice characterized by having protrusions or recesses of different numbers, sizes, and positions on each surface that fit into each other. (2) The multi-stage orifice according to claim 1 of the utility model registration, characterized in that the convex portions or concave portions provided on the opposing surfaces of the orifice and the spacer, respectively, are annular protrusions or grooves. (3) The multi-stage orifice according to claim 1 of the utility model registration, wherein the convex portion and the concave portion provided on the opposing surfaces of the orifice and the spacer, respectively, are cylindrical protrusions or cylindrical recesses. .