JPS5848951U - Internal combustion engine piston structure - Google Patents

Internal combustion engine piston structure

Info

Publication number
JPS5848951U
JPS5848951U JP14584881U JP14584881U JPS5848951U JP S5848951 U JPS5848951 U JP S5848951U JP 14584881 U JP14584881 U JP 14584881U JP 14584881 U JP14584881 U JP 14584881U JP S5848951 U JPS5848951 U JP S5848951U
Authority
JP
Japan
Prior art keywords
combustion engine
internal combustion
piston
piston structure
oil reservoir
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
JP14584881U
Other languages
Japanese (ja)
Inventor
神田　睦美
清 中西
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 JP14584881U priority Critical patent/JPS5848951U/en
Publication of JPS5848951U publication Critical patent/JPS5848951U/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 the drawing]

第１図は本考案のピストンの平面図、第２図は第１図の
Ｘ−Ｘ線に沿う断面図である。 １・・・ピストン、２・・・ピストン頂面、３・・・ピ
ストンリング溝、５・・・オイル溜り室、５ａ・・・天
井部、５ｂ・・・冷却用フィン、５Ｃ・・・床部、５ｄ
・・・オイル進も 入口、５ｅ；−・側壁、６・・・熱遮断用の切込み。FIG. 1 is a plan view of the piston of the present invention, and FIG. 2 is a sectional view taken along the line X--X in FIG. 1. DESCRIPTION OF SYMBOLS 1... Piston, 2... Piston top surface, 3... Piston ring groove, 5... Oil reservoir chamber, 5a... Ceiling part, 5b... Cooling fin, 5C... Floor part, 5d
・・・Inlet for oil inlet, 5e;-・Side wall, 6...Notch for heat insulation.

Claims (5)

【実用新案登録請求の範囲】[Scope of utility model registration request] （１）　　ビストノ頂面の下部にオイル溜め室を形成し
、該オイル溜め室の天井部に冷却用フィン番−すると共
に、該オイル溜め室の床部にオイル進入口を形成し、前
記オイル溜め室の前記天井部と前記オイル溜め室の側壁
との連結部全周に熱遮断用の切込みを形成したことを特
徴とする内−燃機関のピストン−造。(1) An oil reservoir is formed at the lower part of the top surface of the biston, cooling fins are provided on the ceiling of the oil reservoir, an oil inlet is formed on the floor of the oil reservoir, and the oil reservoir is provided with cooling fins on the ceiling of the oil reservoir. A piston structure for an internal combustion engine, characterized in that a notch for heat insulation is formed around the entire circumference of a connecting part between the ceiling part of the chamber and the side wall of the oil reservoir chamber. （２）　実用新案登録語＊の範囲第１項記載の内燃機関
のピストン構造において、前記ピストンをビストノ頂面
に凹所を有する型式のピストンとしたもの。(2) Scope of Utility Model Registration *In the piston structure for an internal combustion engine described in item 1, the piston is of a type having a recess on the top surface of the piston. （３）−実用新案登録請求の範囲第１項又は第２項記載
の内燃機関のピストン構造において、前記オイル進入口
を前記床部の中央部に形成したもの。(3) - Utility Model Registration The piston structure for an internal combustion engine according to claim 1 or 2, wherein the oil inlet is formed in the center of the floor. （４）実用新案登録請求の範囲第１項又は第２項記載の
内燃機関のピストン構造にふいて、前記オイル進入口を
前記床部の中央から偏心した位置に形成したもの。(4) Utility Model Registration A piston structure for an internal combustion engine according to claim 1 or 2, in which the oil inlet is formed at a position eccentric from the center of the floor. （５）　実用新案登録請求の範囲第１項ないし第４項の
うちのいずれか１項に記載した内燃機関のピストン−造
において、前記熱遮断用の切込みを、−前記ピストン外
周面に形成したピストンリング溝に対応する位置に形成
したもの。(5) In the piston structure for an internal combustion engine according to any one of claims 1 to 4 of the claims registered as a utility model, the heat-insulating notch is formed on the outer circumferential surface of the piston. Formed at a position corresponding to the piston ring groove.
JP14584881U 1981-09-30 1981-09-30 Internal combustion engine piston structure Pending JPS5848951U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14584881U JPS5848951U (en) 1981-09-30 1981-09-30 Internal combustion engine piston structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14584881U JPS5848951U (en) 1981-09-30 1981-09-30 Internal combustion engine piston structure

Publications (1)

Publication Number Publication Date
JPS5848951U true JPS5848951U (en) 1983-04-02

Family

ID=29938766

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14584881U Pending JPS5848951U (en) 1981-09-30 1981-09-30 Internal combustion engine piston structure

Country Status (1)

Country Link
JP (1) JPS5848951U (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1306082A (en) * 1969-04-30 1973-02-07

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1306082A (en) * 1969-04-30 1973-02-07

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