JPH0244170U - - Google Patents
Info
- Publication number
- JPH0244170U JPH0244170U JP12398988U JP12398988U JPH0244170U JP H0244170 U JPH0244170 U JP H0244170U JP 12398988 U JP12398988 U JP 12398988U JP 12398988 U JP12398988 U JP 12398988U JP H0244170 U JPH0244170 U JP H0244170U
- Authority
- JP
- Japan
- Prior art keywords
- seal case
- annular head
- tapered
- rotary ring
- ring
- 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.)
- Pending
Links
- 230000002093 peripheral effect Effects 0.000 claims 2
- 238000000605 extraction Methods 0.000 claims 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Description
第１図は本考案を適用した回転軸のシール構造
のの縦断面部分拡大図、第２図は第１図の回転軸
シール装置を備えた内燃機関の縦断面部分図、第
３図及び第４図はそれぞれ従来例の縦断面図であ
る。３……クランク軸（回転軸）、７……シール
ケース、１１……ラビリンス溝、１５……頭部、
１５ａ……外周テーパー面、１５ｃ……端縁、１
６……回転リング、１８……テーパー部、２６…
…環状凹部。
Fig. 1 is a partial enlarged vertical cross-sectional view of a rotary shaft seal structure to which the present invention is applied, Fig. 2 is a partial vertical cross-sectional view of an internal combustion engine equipped with the rotary shaft sealing device of Fig. 1, and Fig. 3 and Fig. FIG. 4 is a vertical sectional view of each conventional example. 3... Crankshaft (rotating shaft), 7... Seal case, 11... Labyrinth groove, 15... Head,
15a...Outer circumferential tapered surface, 15c...Edge, 1
6...Rotating ring, 18...Tapered portion, 26...
...Annular recess.
Claims (1)
ース７を、クランク軸３の動力取出し側の端部３
ａの外周に嵌め、シールケース７のクランク室側
の端部に環状頭部１５を形成し、〓間を有して上
記環状頭部１５を覆う薄肉の回転リング１６を、
クランク軸端部３ａの外周面に圧入固定し、回転
リング１６にはクランク室内側から遠ざかるに従
い径が大きくなるテーパー部１８を形成し、該テ
ーパー部１８の内周面に対して〓間を有して対向
するように環状頭部１５に外周テーパー面１５ａ
を形成し、環状頭部１５とシールケース側面７ａ
の間に外向きの環状凹部２６を形成し、回転リン
グ１６のテーパー部１８の先端部を、環状頭部１
５の外周テーパー面１５ａのシールケース側の端
縁１５ｃよりもシールケース側に張り出させた回
転軸のシール構造。 A non-contact type seal case 7 having a labyrinth groove 11 is attached to the end 3 on the power extraction side of the crankshaft 3.
A thin rotary ring 16 is fitted onto the outer periphery of the seal case 7 to form an annular head 15 at the end of the seal case 7 on the crank chamber side, and covers the annular head 15 with a space between
The rotary ring 16 is press-fitted and fixed to the outer peripheral surface of the crankshaft end 3a, and the rotating ring 16 is formed with a tapered part 18 whose diameter increases as it goes away from the inside of the crank chamber. An outer peripheral tapered surface 15a is provided on the annular head 15 so as to face each other.
forming an annular head 15 and a seal case side surface 7a.
An outward annular recess 26 is formed between the rotary ring 16 and the tapered portion 18 of the rotating ring 16.
A seal structure of a rotary shaft in which the outer circumferential tapered surface 15a of No. 5 protrudes toward the seal case side beyond the end edge 15c on the seal case side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12398988U JPH0244170U (en) | 1988-09-21 | 1988-09-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12398988U JPH0244170U (en) | 1988-09-21 | 1988-09-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0244170U true JPH0244170U (en) | 1990-03-27 |
Family
ID=31373336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12398988U Pending JPH0244170U (en) | 1988-09-21 | 1988-09-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0244170U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002276820A (en) * | 2001-03-14 | 2002-09-25 | Honda Motor Co Ltd | Labyrinth seal structure for constant velocity joint |
-
1988
- 1988-09-21 JP JP12398988U patent/JPH0244170U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002276820A (en) * | 2001-03-14 | 2002-09-25 | Honda Motor Co Ltd | Labyrinth seal structure for constant velocity joint |
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