JPH0246169U - - Google Patents
Info
- Publication number
- JPH0246169U JPH0246169U JP12553488U JP12553488U JPH0246169U JP H0246169 U JPH0246169 U JP H0246169U JP 12553488 U JP12553488 U JP 12553488U JP 12553488 U JP12553488 U JP 12553488U JP H0246169 U JPH0246169 U JP H0246169U
- Authority
- JP
- Japan
- Prior art keywords
- housing
- crank chamber
- impeller
- seal case
- crankshaft
- 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
- 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、１４……吸込み孔
、１５……遠心羽根車、１５ａ……羽根、１６…
…吸込み室、１７……吐出口、１８……ハウジン
グ部。
Fig. 1 is a partially 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;
4 and 4 are longitudinal cross-sectional views of conventional examples, respectively. 3... Crankshaft (rotating shaft), 7... Seal case, 11... Labyrinth groove, 14... Suction hole, 15... Centrifugal impeller, 15a... Vane, 16...
...Suction chamber, 17...Discharge port, 18...Housing part.
Claims (1)
、クランク軸の動力取出し側の端部の外周に嵌め
、シールケースのクランク室側の端部に羽根車用
ハウジング部を形成し、該ハウジング部内に放射
状の羽根を有する遠心羽根車を配置し、該羽根車
をクランク軸端部の外周面に固定し、ハウジング
部の内周側の吸込み室を、シールケースの吸込み
孔を介してクランク室に連通すると共にラビリン
ス溝に連通し、ハウジング部の外周側吐出口をク
ランク室に連通した回転軸のシール構造。 A non-contact type seal case having a labyrinth groove is fitted around the outer periphery of the end of the crankshaft on the power extraction side, an impeller housing is formed at the end of the seal case on the crank chamber side, and a radial groove is formed in the housing. A centrifugal impeller having blades is arranged, the impeller is fixed to the outer peripheral surface of the end of the crankshaft, and the suction chamber on the inner peripheral side of the housing portion is communicated with the crank chamber through the suction hole of the seal case. A seal structure for the rotating shaft that communicates with the labyrinth groove and the outlet on the outer circumference of the housing with the crank chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12553488U JPH0246169U (en) | 1988-09-26 | 1988-09-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12553488U JPH0246169U (en) | 1988-09-26 | 1988-09-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0246169U true JPH0246169U (en) | 1990-03-29 |
Family
ID=31376227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12553488U Pending JPH0246169U (en) | 1988-09-26 | 1988-09-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0246169U (en) |
-
1988
- 1988-09-26 JP JP12553488U patent/JPH0246169U/ja active Pending