JPS5887948U

JPS5887948U - Internal combustion engine piston cooling system

Info

Publication number: JPS5887948U
Application number: JP18371081U
Authority: JP
Inventors: 神田　睦美; 清中西
Original assignee: トヨタ自動車株式会社
Priority date: 1981-12-11
Filing date: 1981-12-11
Publication date: 1983-06-15

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

[Brief explanation of the drawing]

第１図は本考案に使用するピストンの側面図、第２図は
第１図の■−■断面図、第３図は第１図示のピストンの
上面図、第４図は直列４気筒エンジンに本考案を適用し
た場合におけるシリンダブロックの平面図、第５図は第
４図示のシリンダブロックの要部縦断面図である。１・・・・・・ピストン、１ａ・・・・・・クラウン部
、１ｂ−・・・・・オイル溜め室、１Ｃ・・・・・・オ
イル注入口、１ｄ・・・・・・オイル排出口、１ｅ・・
・・・・ピストンピン挿通孔、２・・・・・・ピストン
ピン、３・・・・・・シリンダブロック、３ａ、　　３
ｂ、　　３ｃ、　　３ｄ−−−−−−シリンダ、３ｅ、
　　３ｆ−・・・オイル供給系路、３ｇ、　　３ｈ、　
　３ｉ・・・・・・オイル排出系路、４ａ、５ａ、６ａ
、７ａ・・・・・・インテークバルーｙ’、４ｂ、　　
５ｂ、　６ｂ、　　７ｂ・・・・・・エキゾーストバル
ブ、８・・・・・・ノズル。Ｉ１１＋ｂ：　　／ｎ−＝−ｉ　　’ｑ＝＜山）／“Fig. 1 is a side view of the piston used in the present invention, Fig. 2 is a sectional view taken along the line ■-■ in Fig. 1, Fig. 3 is a top view of the piston shown in Fig. 1, and Fig. 4 is a side view of the piston used in the in-line four-cylinder engine. FIG. 5 is a plan view of the cylinder block when the present invention is applied, and FIG. 5 is a longitudinal sectional view of the main part of the cylinder block shown in FIG. 4. 1... Piston, 1a... Crown portion, 1b... Oil reservoir chamber, 1C... Oil inlet, 1d... Oil drain. Exit, 1e...
...Piston pin insertion hole, 2...Piston pin, 3...Cylinder block, 3a, 3
b, 3c, 3d------ cylinder, 3e,
3f-...oil supply line, 3g, 3h,
3i...Oil discharge system path, 4a, 5a, 6a
, 7a...Intake valve y', 4b,
5b, 6b, 7b... Exhaust valve, 8... Nozzle. I11+b: / n-=-i 'q=<mountain) /“

Claims

[Scope of utility model registration request]

(1) A cylinder in which an oil reservoir is formed in the crown of a reciprocating piston, and an oil inlet and an oil outlet that communicate with the oil reservoir are formed on the side surface of the piston, and in which the piston reciprocates. The block includes an oil supply device that communicates with the oil inlet at the bottom dead center position of the piston to supply oil into the oil reservoir chamber, and an oil supply device that communicates with the oil discharge port at the bottom dead center position of the piston to supply the oil into the oil reservoir chamber. A piston cooling device for an internal combustion engine, comprising an oil discharge path for draining oil from a reservoir chamber.

(2) Utility Model Registration The piston cooling device according to claim 1, wherein the oil inlet and the oil outlet are formed at positions facing each other in the radial direction of the piston.

(3) Utility Model Registration The piston cooling device according to claim 1 or 2, wherein the oil inlet is formed on the exhaust valve side of the cylinder block.

(4) In the piston cooling device described in any one of claims 1 to 3 of the utility model registration claims, an oil supply path connecting the oil supply device to an oil pump and the oil supply system It consists of a nozzle arranged in the road.

(5) Scope of Utility Model Registration In the piston cooling device described in any one of claims 1 to 4, the internal combustion engine is an internal combustion engine having a plurality of cylinders, and the oil supply device is an internal combustion engine having a plurality of cylinders. It is arranged between the cylinders of the cylinder block.