JPS61139429U

JPS61139429U -

Info

Publication number: JPS61139429U
Application number: JP2330185U
Authority: JP
Priority date: 1985-02-20
Filing date: 1985-02-20
Publication date: 1986-08-29

Description

[Brief explanation of the drawing]

第１図は本考案になる流量計の第１実施例を示
す縦断面図、第２図は第１図に適用された絞りの
収納保持の状態を説明するための縦断面図、第３
図は絞りを構成する複数の板の組付け順序を説明
するための斜視図、第４図Ａは環状板の上流側の
面形状を説明するための正面図、第４図Ｂは第４
図Ａ中Ｂ−Ｂ線に沿う断面図、第５乃至８図
は夫々本考案の第２乃至第５実施例に適用された
絞りの位置決め及び収納保持の状態を説明するた
めの縦断面図である。１……熱式質量流量計、２，１６，１７，１８
……絞り、６，７……保持部材、９，１１，１２
，１３……環状板、１０……円板、１０ａ，１１
ａ……溝、１０ｂ……貫通孔、１１ｂ，１２ｂ，
１３ｂ……孔、１１ｄ，１２ｄ，１３ｄ……溝。 FIG. 1 is a vertical cross-sectional view showing a first embodiment of the flowmeter according to the present invention, FIG.
The figure is a perspective view for explaining the assembly order of a plurality of plates constituting the diaphragm, FIG. 4A is a front view for explaining the upstream surface shape of the annular plate, and FIG.
A cross-sectional view taken along the line B-B in Figure A, and Figures 5 to 8 are longitudinal cross-sectional views for explaining the positioning and storage/holding state of the diaphragm applied to the second to fifth embodiments of the present invention, respectively. be. 1...Thermal mass flow meter, 2, 16, 17, 18
...Aperture, 6, 7...Holding member, 9, 11, 12
, 13... annular plate, 10... disc, 10a, 11
a...Groove, 10b...Through hole, 11b, 12b,
13b...hole, 11d, 12d, 13d...groove.

Claims

[Scope of utility model registration request]

In a flow meter that has a restriction in the flow path, the restriction consists of a disk having a large number of through holes near its outer periphery, a center hole and a large number of holes provided at positions facing the disk and communicating with the through holes. an annular plate having a hole and a groove communicating the hole and the central hole, and the disc and the annular plate are fitted and abut against the outer peripheries of the disc and the annular plate to accommodate and hold them. A flowmeter comprising a holding member.