JPH0413869U

JPH0413869U -

Info

Publication number: JPH0413869U
Application number: JP5382390U
Authority: JP
Priority date: 1990-05-23
Filing date: 1990-05-23
Publication date: 1992-02-04

Description

[Brief explanation of the drawing]

第１図は本考案に係るメカニカルシールの第１
実施例を示す概略的要部側面図、第２図は同じく
回転環の概略的要部側面図、第３図は本考案に係
るメカニカルシールの第２実施例を示す概略的要
部断面図、第４図は従来のメカニカルシールの概
略的要部断面図である。１……機体、２……ハウジング、３……回転軸
、６……回転環（メイテイングリング）、６ａ…
…外周端面、６１……溝、７……固定環（シール
リング）、２０……半透膜部材、Ａ……摺動面、
Ｓ……シール液。 Figure 1 shows the first mechanical seal according to the present invention.
FIG. 2 is a schematic side view of the main parts of the rotating ring; FIG. 3 is a schematic cross-sectional view of the main parts showing the second embodiment of the mechanical seal according to the present invention. FIG. 4 is a schematic cross-sectional view of essential parts of a conventional mechanical seal. 1... Body, 2... Housing, 3... Rotating shaft, 6... Rotating ring (mating ring), 6a...
... Outer peripheral end surface, 61 ... Groove, 7 ... Fixed ring (seal ring), 20 ... Semipermeable membrane member, A ... Sliding surface,
S...Seal liquid.

Claims

[Claims for Utility Model Registration] 1. A fixed ring fixed to the housing side of the fuselage;
A mechanical seal comprising a rotating ring fixed to the rotating shaft side inserted into the housing of the body so as to be in elastic pressure and sliding contact with the fixed ring, the sliding surface of the fixed ring and the rotating ring being A mechanical seal characterized by having a semipermeable membrane member provided on the outer periphery on the sealing liquid side. 2. A semipermeable membrane member in the form of a lip seal is fixed to the outer periphery of the fixed ring, and this semipermeable membrane member is brought into sliding contact with the outer periphery of the rotating ring to cover the sliding surface. The mechanical seal according to claim 1. 3. A ring-shaped semipermeable membrane member made of a porous body is fitted and fixed to the outer peripheral end surface of the sliding surface of the stationary ring, and this semipermeable membrane member is brought into sliding contact with the outer peripheral end surface of the sliding surface of the rotating ring. The mechanical seal according to claim 1, characterized in that: 4. The mechanical seal according to claim 2 or 3, wherein a plurality of grooves are spirally formed in a direction opposite to the rotational direction on the outer peripheral end surface of the sliding surface of the rotating ring that slides on the fixed ring.