JPS62154216U - - Google Patents
Info
- Publication number
- JPS62154216U JPS62154216U JP4189086U JP4189086U JPS62154216U JP S62154216 U JPS62154216 U JP S62154216U JP 4189086 U JP4189086 U JP 4189086U JP 4189086 U JP4189086 U JP 4189086U JP S62154216 U JPS62154216 U JP S62154216U
- Authority
- JP
- Japan
- Prior art keywords
- oil
- piston
- connecting rod
- pin bearing
- piston pin
- 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
- 238000001816 cooling Methods 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims 2
- 238000002485 combustion reaction Methods 0.000 claims 1
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
Description
第１図は本考案の一実施例を示す側面断面図、
第２図は第１図の正面部分断面図、第３図は第１
図の要部拡大側面断面図、第４図は本考案の第２
実施例を示す要部拡大断面図、第５図は従来のピ
ストンの冷却構造を示す部分断面図である。
２１……コネクテイングロツド、２２，２５…
…連結端部、２３……クランクピン結合孔、２４
……ピストン、２６，３０……ピストンピン軸受
部、２７……ロツド部、２８……オイル導入通路
、２９……第１のオイル溝、３１……オイル孔、
３２……第２のオイル溝、３３……オイルジエツ
ト。
FIG. 1 is a side sectional view showing an embodiment of the present invention;
Figure 2 is a front partial sectional view of Figure 1, and Figure 3 is a partial cross-sectional view of Figure 1.
Figure 4 is an enlarged side sectional view of the main part of the figure.
FIG. 5 is an enlarged sectional view of main parts showing an embodiment, and FIG. 5 is a partial sectional view showing a conventional piston cooling structure. 21... Connecting rod, 22, 25...
...Connection end, 23...Crank pin coupling hole, 24
... Piston, 26, 30 ... Piston pin bearing part, 27 ... Rod part, 28 ... Oil introduction passage, 29 ... First oil groove, 31 ... Oil hole,
32...Second oil groove, 33...Oil jet.
Claims (1)
連結端部に形成されたクランクピン結合孔内面と
前記コネクテイングロツドのピストンとの連結端
部に形成されたピストンピン軸受部内面とを該コ
ネクテイングロツドのロツド部内を貫通して連通
するノイル導入通路を設ける一方、コネクテイン
グロツド側のピストンピン軸受部内周面には前記
オイル導入通路と連通する第１のオイル溝を、ピ
ストン側のピストンピン軸受部内周面にはピスト
ン底部に形成されたオイル孔と連通する第２のオ
イル溝を、それぞれ形成し、前記オイル孔の開口
端にオイルの噴射方向を向けたオイルジエツトを
前記オイル導入通路のコネクテイングロツド側ピ
ストンピン軸受部寄りに形成したことを特徴とす
る内燃機関のピストンピン軸受部冷却装置。 Connect the inner surface of the crank pin coupling hole formed at the connecting end of the connecting rod with the crankshaft and the inner surface of the piston pin bearing portion formed at the connecting end of the connecting rod with the piston to the connecting rod. A first oil groove that communicates with the oil introduction passage is provided on the inner peripheral surface of the piston pin bearing on the connecting rod side, and a first oil groove that communicates with the oil introduction passage is provided on the inner peripheral surface of the piston pin bearing on the connecting rod side. A second oil groove communicating with an oil hole formed at the bottom of the piston is formed on the inner circumferential surface of the piston, and an oil jet with an oil injection direction directed to the open end of the oil hole is connected to the oil introduction passage. A piston pin bearing cooling device for an internal combustion engine, characterized in that it is formed near a rod side piston pin bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4189086U JPS62154216U (en) | 1986-03-24 | 1986-03-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4189086U JPS62154216U (en) | 1986-03-24 | 1986-03-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62154216U true JPS62154216U (en) | 1987-09-30 |
Family
ID=30857300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4189086U Pending JPS62154216U (en) | 1986-03-24 | 1986-03-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62154216U (en) |
-
1986
- 1986-03-24 JP JP4189086U patent/JPS62154216U/ja active Pending