JPH044565U - - Google Patents

Info

Publication number
JPH044565U
JPH044565U JP4493890U JP4493890U JPH044565U JP H044565 U JPH044565 U JP H044565U JP 4493890 U JP4493890 U JP 4493890U JP 4493890 U JP4493890 U JP 4493890U JP H044565 U JPH044565 U JP H044565U
Authority
JP
Japan
Prior art keywords
spiral groove
mating ring
seal
gas seal
diameter side
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP4493890U
Other languages
Japanese (ja)
Other versions
JPH073099Y2 (en
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1990044938U priority Critical patent/JPH073099Y2/en
Publication of JPH044565U publication Critical patent/JPH044565U/ja
Application granted granted Critical
Publication of JPH073099Y2 publication Critical patent/JPH073099Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)

Description

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

第１図乃至第５図は本考案の一実施例に係るガ
スシールを示しており、第１図は螺旋状溝のＡ−
Ａ′線に沿う断面図、第２図は螺旋状溝の形状を
示すメイテイングリングの半平面図、第３図はガ
スシールの要部縦断面図、第４図ａは本考案の溝
による動圧の圧力分布を示す図、第４図ｂは従来
の矩形溝による動圧の圧力分布を示す図、第５図
ａ，ｂは本考案の溝形状のテーパー角度による圧
力分布の変化を示す図、第６図は従来のガスシー
ルを示す要部縦断面図、第７図は第６図の螺旋状
溝の形状を示す平面図である。 符号の説明、１……ガスシール、２……回転軸
、３……メイテイングリング、３１……摺動面、
４……ハウジング、５……シールリング、５１…
…摺動面、８……スプリング、１１……螺旋状溝
、１２……テーパー面。 1 to 5 show a gas seal according to an embodiment of the present invention, and FIG. 1 shows a spiral groove A-
2 is a half plan view of the mating ring showing the shape of the spiral groove, FIG. 3 is a vertical sectional view of the main part of the gas seal, and FIG. 4a is a diagram showing the groove of the present invention. Figure 4b shows the pressure distribution of dynamic pressure. Figure 4b shows the pressure distribution of dynamic pressure due to a conventional rectangular groove. Figures 5a and b show changes in pressure distribution depending on the taper angle of the groove shape of the present invention. 6 is a vertical sectional view of a main part of a conventional gas seal, and FIG. 7 is a plan view showing the shape of the spiral groove in FIG. 6. Explanation of symbols, 1... Gas seal, 2... Rotating shaft, 3... Mating ring, 31... Sliding surface,
4...Housing, 5...Seal ring, 51...
...Sliding surface, 8...Spring, 11...Spiral groove, 12...Tapered surface.

Claims (1)

【実用新案登録請求の範囲】 回転軸に取付けられるメイテイングリングと、
ハウジングに取付けられ上記メイテイングリング
に対して摺動自在に接触するシールリングとを備
え、上記メイテイングリングまたはシールリング
の摺動面に、両リングの摺動面間に浮上力を働か
せるための動圧生成用の螺旋状溝を設けたガスシ
ールにおいて、 前記螺旋状溝を外径側から内径側に向つて溝の
深さが深くなる方向に傾斜するテーパー形状に形
成して成ることを特徴とするガスシール。[Scope of claim for utility model registration] A mating ring attached to a rotating shaft,
a seal ring attached to the housing and slidably in contact with the mating ring, and for applying a floating force between the sliding surfaces of the mating ring or the seal ring. A gas seal provided with a spiral groove for generating dynamic pressure, characterized in that the spiral groove is formed in a tapered shape that slopes in a direction in which the depth of the groove increases from the outer diameter side toward the inner diameter side. gas seal.
JP1990044938U 1990-04-26 1990-04-26 Gas seal Expired - Lifetime JPH073099Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1990044938U JPH073099Y2 (en) 1990-04-26 1990-04-26 Gas seal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1990044938U JPH073099Y2 (en) 1990-04-26 1990-04-26 Gas seal

Publications (2)

Publication Number Publication Date
JPH044565U true JPH044565U (en) 1992-01-16
JPH073099Y2 JPH073099Y2 (en) 1995-01-30

Family

ID=31558683

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1990044938U Expired - Lifetime JPH073099Y2 (en) 1990-04-26 1990-04-26 Gas seal

Country Status (1)

Country Link
JP (1) JPH073099Y2 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4923487A (en) * 1972-06-26 1974-03-01
JPS4933614A (en) * 1972-07-24 1974-03-28
JPS5116150A (en) * 1974-07-30 1976-02-09 Matsushita Electric Works Ltd HEAADORAIYA
JPS53157255U (en) * 1977-05-16 1978-12-09

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4923487A (en) * 1972-06-26 1974-03-01
JPS4933614A (en) * 1972-07-24 1974-03-28
JPS5116150A (en) * 1974-07-30 1976-02-09 Matsushita Electric Works Ltd HEAADORAIYA
JPS53157255U (en) * 1977-05-16 1978-12-09

Also Published As

Publication number Publication date
JPH073099Y2 (en) 1995-01-30

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term