JPS59130020U - Internal combustion engine piston oil cooling system - Google Patents

Internal combustion engine piston oil cooling system

Info

Publication number
JPS59130020U
JPS59130020U JP2229783U JP2229783U JPS59130020U JP S59130020 U JPS59130020 U JP S59130020U JP 2229783 U JP2229783 U JP 2229783U JP 2229783 U JP2229783 U JP 2229783U JP S59130020 U JPS59130020 U JP S59130020U
Authority
JP
Japan
Prior art keywords
piston
combustion engine
internal combustion
oil cooling
cooling system
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
Application number
JP2229783U
Other languages
Japanese (ja)
Inventor
武史 小谷
清 中西
井上　悳太
神田　睦美
Original Assignee
トヨタ自動車株式会社
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 by トヨタ自動車株式会社 filed Critical トヨタ自動車株式会社
Priority to JP2229783U priority Critical patent/JPS59130020U/en
Publication of JPS59130020U publication Critical patent/JPS59130020U/en
Pending legal-status Critical Current

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  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

第１図は本考案の一実施例に係る内燃機関のピストンオ
イル冷却装置の縦断面図、第２図は第１図の装置の中空
部天井面を下方からみた平面図、である。 １・・・ピストン、６・・・中空部、７・・・天井面、
１０・・・下壁、１１・・・オイル流入口、１２・・・
オイル排出口、１３・・・オイルジェット管、１４・・
・凹凸部、１５・・・渦巻状溝。FIG. 1 is a longitudinal sectional view of a piston oil cooling device for an internal combustion engine according to an embodiment of the present invention, and FIG. 2 is a plan view of the ceiling surface of a hollow part of the device shown in FIG. 1, viewed from below. 1...Piston, 6...Hollow part, 7...Ceiling surface,
10... Lower wall, 11... Oil inlet, 12...
Oil discharge port, 13...Oil jet pipe, 14...
- Uneven portion, 15... spiral groove.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ピストンの頂部にピストンの横断面方向に拡がりピスト
ン冷却用オイルが供給、排出される中空部を形成し、該
中空部の天井面を周辺から中央に向かって上昇しながら
傾斜する円錐状に形成し、該天井面に凹凸を設けて該天
井面の中央に向けて収束する渦巻状の溝を形成するとと
もに、前記中空部の下壁の中央に下方に向けて開口する
オイル排出口を設けたことを特徴とする内燃機関のピス
トンオイル冷却装置。A hollow part is formed at the top of the piston that extends in the cross-sectional direction of the piston and through which piston cooling oil is supplied and discharged, and the ceiling surface of the hollow part is formed in a conical shape that slopes upward from the periphery toward the center. The ceiling surface is provided with unevenness to form a spiral groove that converges toward the center of the ceiling surface, and an oil discharge port that opens downward is provided at the center of the lower wall of the hollow portion. A piston oil cooling device for an internal combustion engine featuring:
JP2229783U 1983-02-19 1983-02-19 Internal combustion engine piston oil cooling system Pending JPS59130020U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2229783U JPS59130020U (en) 1983-02-19 1983-02-19 Internal combustion engine piston oil cooling system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2229783U JPS59130020U (en) 1983-02-19 1983-02-19 Internal combustion engine piston oil cooling system

Publications (1)

Publication Number Publication Date
JPS59130020U true JPS59130020U (en) 1984-08-31

Family

ID=30153396

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2229783U Pending JPS59130020U (en) 1983-02-19 1983-02-19 Internal combustion engine piston oil cooling system

Country Status (1)

Country Link
JP (1) JPS59130020U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009216416A (en) * 2008-03-07 2009-09-24 Toyota Motor Corp Internal flaw inspection method of piston
JP2014185538A (en) * 2013-03-22 2014-10-02 Hitachi Automotive Systems Ltd Piston for internal combustion engine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009216416A (en) * 2008-03-07 2009-09-24 Toyota Motor Corp Internal flaw inspection method of piston
JP2014185538A (en) * 2013-03-22 2014-10-02 Hitachi Automotive Systems Ltd Piston for internal combustion engine

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