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
Application number
JP686788U
Other languages
Japanese (ja)
Other versions
JPH064021Y2 (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 JP1988006867U priority Critical patent/JPH064021Y2/en
Publication of JPH01113125U publication Critical patent/JPH01113125U/ja
Application granted granted Critical
Publication of JPH064021Y2 publication Critical patent/JPH064021Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Description

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

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)

【実用新案登録請求の範囲】 シリンダブロツク１のシリンダ６内に摺動自
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.
JP1988006867U 1988-01-22 1988-01-22 Piston cooling device for internal combustion engine Expired - Lifetime JPH064021Y2 (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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