JPH01113125U - - Google Patents
Info
- Publication number
- JPH01113125U JPH01113125U JP686788U JP686788U JPH01113125U JP H01113125 U JPH01113125 U JP H01113125U JP 686788 U JP686788 U JP 686788U JP 686788 U JP686788 U JP 686788U JP H01113125 U JPH01113125 U JP H01113125U
- Authority
- JP
- Japan
- Prior art keywords
- piston
- cylinder
- oil
- combustion engine
- internal combustion
- 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
Links
- 238000002485 combustion reaction Methods 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims 7
Description
第1〜3図は本考案の第1実施例を示すもので
、第1図は本考案装置を備えた内燃機関の、ピス
トン上死点時の縦断面図、第2図はそのピストン
下死点時の縦断面図、第3図は第2図―線横
断面図、第4〜6図は本考案の第2実施例を示す
もので、第4図は本考案装置を備えた内燃機関の
、ピストン上死点時の縦断面図、第5図はそのピ
ストン下死点時の縦断面図、第6図は、第5図
―線横断面図である。
Z……ピストン摺動区域、1……シリンダブロ
ツク、6……シリンダ、8……ピストン、81…
…トツプ、82……スカート、19……オイルノ
ズル、191……噴口、24……オイル誘導溝、
25……オイル受溝。
Figures 1 to 3 show a first embodiment of the present invention. Figure 1 is a longitudinal sectional view of an internal combustion engine equipped with the device of the present invention at the piston top dead center, and Figure 2 is the piston bottom dead center. FIG. 3 is a cross-sectional view taken along the line 2--FIG. 2. FIGS. 4 to 6 show a second embodiment of the present invention. FIG. FIG. 5 is a vertical cross-sectional view of the piston when the piston is at the bottom dead center, and FIG. 6 is a cross-sectional view taken along the line of FIG. Z... Piston sliding area, 1... Cylinder block, 6... Cylinder, 8... Piston, 8 1 ...
...Top, 8 2 ... Skirt, 19 ... Oil nozzle, 19 1 ... Spout, 24 ... Oil guide groove,
25...Oil receiving groove.
Claims (1)
在に嵌合されるピストン8の背面に、冷却オイル
を強制的に噴射して該ピストン8を冷却するよう
にした内燃機関のピストン冷却装置において、前
記シリンダブロツク1のシリンダ6内壁の、ピス
トン摺動区域Z以内にオイルノズル19を設け、
該オイルノズル19の噴口191を、シリンダ6
に向けて上向きに開口し、さらにピストン8のス
カート82には、前記噴口191からの噴出オイ
ルを受容してこれをピストン8のトツプ81背面
中央部に導くためのオイル受溝25を形成したこ
とを特徴とする内燃機関のピストン冷却装置。 前記第項記載の内燃機関のピストン冷却装
置において、前記オイルノズル19の噴口191
は、前記シリンダ6の内周面よりも内没しており
、該内周面には前記噴口191をシリンダ6内に
連通するオイル誘導溝24が形成される内燃機関
のピストン冷却装置。 前記第項記載の内燃機関のピストン冷却装
置において、前記オイルノズル19の噴口191
は、前記シリンダ6の内壁面より突出しており、
前記ピストン8が下死点近傍にあるとき、前記オ
イル受溝25内に臨むようにした内燃機関のピス
トン冷却装置。[Claims for Utility Model Registration] An internal combustion engine that cools the piston 8 by forcibly injecting cooling oil to the back surface of the piston 8 which is slidably fitted into the cylinder 6 of the cylinder block 1. In the piston cooling device, an oil nozzle 19 is provided within the piston sliding area Z of the inner wall of the cylinder 6 of the cylinder block 1,
The spout 191 of the oil nozzle 19 is connected to the cylinder 6.
The skirt 82 of the piston 8 has an oil receiving groove 25 for receiving the oil jetted from the nozzle 191 and guiding it to the center of the back surface of the top 81 of the piston 8. A piston cooling device for an internal combustion engine, characterized in that: In the piston cooling device for an internal combustion engine as described in the above item, the spout 19 1 of the oil nozzle 19
is a piston cooling device for an internal combustion engine, which is recessed inward from the inner circumferential surface of the cylinder 6, and has an oil guide groove 24 formed in the inner circumferential surface to communicate the jet nozzle 191 with the inside of the cylinder 6. In the piston cooling device for an internal combustion engine as described in the above item, the spout 19 1 of the oil nozzle 19
protrudes from the inner wall surface of the cylinder 6,
A piston cooling device for an internal combustion engine, which faces into the oil receiving groove 25 when the piston 8 is near the bottom dead center.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1988006867U JPH064021Y2 (en) | 1988-01-22 | 1988-01-22 | Piston cooling device for internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1988006867U JPH064021Y2 (en) | 1988-01-22 | 1988-01-22 | Piston cooling device for internal combustion engine |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH01113125U true JPH01113125U (en) | 1989-07-31 |
JPH064021Y2 JPH064021Y2 (en) | 1994-02-02 |
Family
ID=31211395
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1988006867U Expired - Lifetime JPH064021Y2 (en) | 1988-01-22 | 1988-01-22 | Piston cooling device for internal combustion engine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH064021Y2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008072680A1 (en) * | 2006-12-08 | 2008-06-19 | Toyota Jidosha Kabushiki Kaisha | Internal combustion engine |
JP2013130129A (en) * | 2011-12-21 | 2013-07-04 | Kawasaki Heavy Ind Ltd | Cooling structure of piston in engine |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51153337U (en) * | 1975-06-02 | 1976-12-07 | ||
JPS60100543U (en) * | 1983-12-15 | 1985-07-09 | トヨタ自動車株式会社 | Internal combustion engine piston structure |
-
1988
- 1988-01-22 JP JP1988006867U patent/JPH064021Y2/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51153337U (en) * | 1975-06-02 | 1976-12-07 | ||
JPS60100543U (en) * | 1983-12-15 | 1985-07-09 | トヨタ自動車株式会社 | Internal combustion engine piston structure |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008072680A1 (en) * | 2006-12-08 | 2008-06-19 | Toyota Jidosha Kabushiki Kaisha | Internal combustion engine |
US8267053B2 (en) | 2006-12-08 | 2012-09-18 | Toyota Jidosha Kabushiki Kaisha | Internal combustion engine |
JP2013130129A (en) * | 2011-12-21 | 2013-07-04 | Kawasaki Heavy Ind Ltd | Cooling structure of piston in engine |
Also Published As
Publication number | Publication date |
---|---|
JPH064021Y2 (en) | 1994-02-02 |
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