JPS6337869U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は、本考案の実施例を示す要部説明図、
第２図は第１図の静止環を示す断面図、第３図は
従来タイプの非接触シールを示す要部説明図、第
４図は圧力―流量特性の関係を示す説明図、第５
図は圧力―すきまの関係を示す説明図である。 １……回転環、２……静止環、３……電磁石、
４……軸、５……Ｏリング、６……低圧流体、７
……高圧流体、８……リード線、９……シールす
きま。 FIG. 1 is an explanatory diagram of main parts showing an embodiment of the present invention,
Fig. 2 is a sectional view showing the stationary ring in Fig. 1, Fig. 3 is an explanatory view of main parts showing a conventional type non-contact seal, Fig. 4 is an explanatory view showing the relationship between pressure and flow rate characteristics, and Fig. 5 is an explanatory view showing the relationship between pressure and flow rate characteristics.
The figure is an explanatory diagram showing the relationship between pressure and clearance. 1... Rotating ring, 2... Stationary ring, 3... Electromagnet,
4...Shaft, 5...O ring, 6...Low pressure fluid, 7
...High pressure fluid, 8...Lead wire, 9...Seal clearance.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 回転環と静止環から構成される非接触シールに
おいて、静止環側に電磁石を埋めこみ、同電磁石
の電磁力をコントロールし、シールすきまを調節
してなることを特徴とする非接触シール。 A non-contact seal consisting of a rotating ring and a stationary ring, in which an electromagnet is embedded in the stationary ring side, and the electromagnetic force of the electromagnet is controlled to adjust the seal gap.