JPS59141112U - Lubrication-free piston device - Google Patents

Lubrication-free piston device

Info

Publication number
JPS59141112U
JPS59141112U JP3542983U JP3542983U JPS59141112U JP S59141112 U JPS59141112 U JP S59141112U JP 3542983 U JP3542983 U JP 3542983U JP 3542983 U JP3542983 U JP 3542983U JP S59141112 U JPS59141112 U JP S59141112U
Authority
JP
Japan
Prior art keywords
gas outlet
piston
piston device
lubrication
injection valve
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
JP3542983U
Other languages
Japanese (ja)
Inventor
伊藤　純雄
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 JP3542983U priority Critical patent/JPS59141112U/en
Publication of JPS59141112U publication Critical patent/JPS59141112U/en
Pending legal-status Critical Current

Links

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) [Abstract] 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図は従来の無潤滑ピストンの側面断面図、第２図は
上死点と下死点間に位置する本考案による無潤滑ピスト
ンの側面断面図、第３図は下死点に位置するところを示
す第２図のピストンの側面断面図、第４図は第３図のＩ
Ｖ−ＩＶ線に沿ってみた断面平面図、第５図は水噴射弁
の駆動ｆｆ１Ｕ御装置の全体図、第６図は別の実施例を
示すピストンの断面平面図である。 ２・・・シリンダボア内周面、３・・・ピストン、６゜
７・・・環状溝、９．１０・・・上部ガス流出口、１２
゜１３・・・下部ガス流出口、１１，１４．１５・・・
ガス流通路、１９．２０・・・水噴射弁。Figure 1 is a side sectional view of a conventional non-lubricated piston, Figure 2 is a side sectional view of a non-lubricated piston according to the present invention located between top dead center and bottom dead center, and Figure 3 is located at bottom dead center. Fig. 4 is a side sectional view of the piston shown in Fig. 3.
FIG. 5 is an overall view of the water injection valve drive ff1U control device, and FIG. 6 is a cross-sectional plan view of a piston showing another embodiment. 2... Cylinder bore inner peripheral surface, 3... Piston, 6°7... Annular groove, 9.10... Upper gas outlet, 12
゜13...Lower gas outlet, 11,14.15...
Gas flow passage, 19.20... water injection valve.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 燃焼室に近い側に位置するピストン上部外周面上に上部
ガス流出口を形成し、ピストンが下死点に達したときに
クランクケース内に露呈するピストン下部外周面上に下
部ガス流出口を形成して該上部ガス流出口と下部ガス流
出口とをピストン内に形成したガス流通路により互に連
結し、該下部ガス流出口がクランクケース内に露呈した
ときに上部ガス流出口に対面するシリンダポア内壁面上
に水噴射弁を設けて該水噴射弁から上部ガス流出口内に
水を噴射するようにした無潤滑ピストン装置。An upper gas outlet is formed on the outer circumferential surface of the upper part of the piston, which is located on the side closer to the combustion chamber, and a lower gas outlet is formed on the outer circumferential surface of the lower part of the piston, which is exposed inside the crankcase when the piston reaches bottom dead center. The upper gas outlet and the lower gas outlet are connected to each other by a gas flow passage formed in the piston, and the cylinder pore faces the upper gas outlet when the lower gas outlet is exposed in the crankcase. A non-lubricated piston device comprising a water injection valve provided on an inner wall surface and injecting water into an upper gas outlet from the water injection valve.
JP3542983U 1983-03-14 1983-03-14 Lubrication-free piston device Pending JPS59141112U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3542983U JPS59141112U (en) 1983-03-14 1983-03-14 Lubrication-free piston device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3542983U JPS59141112U (en) 1983-03-14 1983-03-14 Lubrication-free piston device

Publications (1)

Publication Number Publication Date
JPS59141112U true JPS59141112U (en) 1984-09-20

Family

ID=30166126

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3542983U Pending JPS59141112U (en) 1983-03-14 1983-03-14 Lubrication-free piston device

Country Status (1)

Country Link
JP (1) JPS59141112U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02139346U (en) * 1989-04-24 1990-11-21
JP2015503700A (en) * 2011-12-29 2015-02-02 エタジェン， インコーポレイテッド Method and system for managing clearance in a piston engine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02139346U (en) * 1989-04-24 1990-11-21
JP2015503700A (en) * 2011-12-29 2015-02-02 エタジェン， インコーポレイテッド Method and system for managing clearance in a piston engine

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