JPH031283U

JPH031283U -

Info

Publication number: JPH031283U
Application number: JP6094489U
Authority: JP
Priority date: 1989-05-29
Filing date: 1989-05-29
Publication date: 1991-01-09
Anticipated expiration: 2003-11-11
Also published as: JPH0544549Y2

Description

[Brief explanation of drawings]

第１図は従来装置の中央縦断面図、第２図は第
１図のシールリング部分の拡大図、第３図は本案
装置の実施例を示す拡大中央部分縦断面図、第４
図は第３図中のシールリング部分のシールリング
本体を拡大して示した断面図、第５図は第３図中
のシールリング部分の拡大断面図、第６図は第５
図の実施例を示す拡大断面図である。１……クランクケース、２′……回転軸、７…
…クランクケース、８……ホルダーリング、１１
……Ｏ−リング、１６……シールリング本体、１
７……内周面、２０，２１，２７……外周傾斜面
、２２，２４，２５……内周傾斜面、２３，２６
……背面空間。 Fig. 1 is a central vertical sectional view of the conventional device, Fig. 2 is an enlarged view of the seal ring portion of Fig. 1, Fig. 3 is an enlarged central longitudinal sectional view showing an embodiment of the present device, and Fig. 4
The figure is an enlarged sectional view of the seal ring main body of the seal ring part in Fig. 3, Fig. 5 is an enlarged sectional view of the seal ring part in Fig. 3, and Fig. 6 is an enlarged sectional view of the seal ring main body of the seal ring part in Fig. 3.
FIG. 3 is an enlarged sectional view showing the embodiment of the figure. 1...Crankcase, 2'...Rotating shaft, 7...
...Crank case, 8...Holder ring, 11
...O-ring, 16 ...Seal ring body, 1
7... Inner circumference surface, 20, 21, 27... Outer circumference inclined surface, 22, 24, 25... Inner circumference inclined surface, 23, 26
...Back space.

Claims

[Scope of utility model registration request]

A crankcase defining a crank chamber containing high-pressure fluid, a rotating shaft supported by the crankcase and extending into the crank chamber, the outer peripheral surface of which is O-
A holder ring that is hermetically supported on the inner wall surface of the crankcase via a ring and has an inner peripheral inclined surface, an inner peripheral surface that contacts the rotating shaft, and an outer peripheral inclined surface that contacts the inner peripheral inclined surface of the holder ring. A rotary shaft for high-pressure fluid, comprising a seal ring main body, and a part of either the inner peripheral inclined surface or the outer peripheral inclined surface is formed in two stages to form a back space between the two. sealing device.