JPS5877146U - Direct injection engine injection nozzle overheating prevention device - Google Patents

Direct injection engine injection nozzle overheating prevention device

Info

Publication number
JPS5877146U
JPS5877146U JP17378281U JP17378281U JPS5877146U JP S5877146 U JPS5877146 U JP S5877146U JP 17378281 U JP17378281 U JP 17378281U JP 17378281 U JP17378281 U JP 17378281U JP S5877146 U JPS5877146 U JP S5877146U
Authority
JP
Japan
Prior art keywords
injection nozzle
tip
concave seat
seat
prevention device
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
JP17378281U
Other languages
Japanese (ja)
Other versions
JPS6129969Y2 (en
Inventor
時田　栄寛
年本　弘美
浜田　勝弘
正成 梶原
田中　遜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kubota Corp
Original Assignee
Kubota Corp
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 Kubota Corp filed Critical Kubota Corp
Priority to JP17378281U priority Critical patent/JPS5877146U/en
Publication of JPS5877146U publication Critical patent/JPS5877146U/en
Application granted granted Critical
Publication of JPS6129969Y2 publication Critical patent/JPS6129969Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Combustion Methods Of Internal-Combustion Engines (AREA)
  • Fuel-Injection Apparatus (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図は水冷横型直噴式ディーゼルエンジンの側面図、
第２図はその縦断面図、第３図は第２図の■−■線断面
図、第４図は第３図の■−〜線断面図、第５図はシリン
ダヘッドの底面図である。 １・・・・・・直噴式エンジン、２・・・・・・シリン
ダヘッド、３・・・・・・燃焼室、４・・・・・・凹座
、５・・・・・・吸気弁座、６・・・・・・吸気ポート
、７・・・・・・噴射ノズル差込孔、７ａ・・・・・・
ノズル差込孔の先端部、８・・・・・・吸気弁、１０・
・・・・・噴射ノズル、１０ａ・・・・・・噴射ノズル
の先端部。 （，１− へ＼ヘ一一一一一 ”１．−冶、１ ′Ｖ〜 【 第３図 （１ リー　　Ｎ喋多 ＼−＼− 第２図　　・−ｍ −７−Figure 1 is a side view of a water-cooled horizontal direct injection diesel engine.
Fig. 2 is a longitudinal sectional view thereof, Fig. 3 is a sectional view taken along the line ■-■ in Fig. 2, Fig. 4 is a sectional view taken along the line - - ~ in Fig. 3, and Fig. 5 is a bottom view of the cylinder head. . 1... Direct injection engine, 2... Cylinder head, 3... Combustion chamber, 4... Concave seat, 5... Intake valve Seat, 6...Intake port, 7...Injection nozzle insertion hole, 7a...
Tip of nozzle insertion hole, 8...Intake valve, 10.
...Injection nozzle, 10a...Tip part of the injection nozzle. (, 1- ＼ え １１１１”１．- 治、１ ′V～ [Fig.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 直接噴射式エンジン１のシリンダヘッド２の燃焼室３を
形成する内面部分に凹座４を形成し、凹座４の奥端面に
吸気弁座５を介して吸気ポート６を開口し、前記ヘッド
内面部分の凹座４の横に噴射ノズル差込孔７の先端部７
ａを開口し、吸気弁８の開弁時に吸気ポート６から弁座
５を経て凹座４内に流れ込んで来た吸入空気を噴射ノズ
ル差込孔７の先端部７ａ内に位置する噴射ノズル１０の
先端部１０ａに案内する導気溝１１を、凹座４の周面と
噴射ノズル差込孔７の先端部７ａの周面とに亘って形成
した事を特徴とする直接噴射式エンジシの噴射ノズル過
熱防止装置。A concave seat 4 is formed on the inner surface of the cylinder head 2 forming the combustion chamber 3 of the direct injection engine 1, and an intake port 6 is opened at the rear end surface of the concave seat 4 via an intake valve seat 5, and the intake port 6 is opened at the inner surface of the concave seat 4 through an intake valve seat 5. The tip 7 of the injection nozzle insertion hole 7 is located next to the concave seat 4 of the part.
a, and when the intake valve 8 is opened, the intake air flowing from the intake port 6 through the valve seat 5 into the concave seat 4 is transferred to the injection nozzle 10 located within the tip 7a of the injection nozzle insertion hole 7. The direct injection type engine is characterized in that an air guide groove 11 that guides the tip 10a of the injection nozzle is formed across the circumferential surface of the concave seat 4 and the circumferential surface of the tip 7a of the injection nozzle insertion hole 7. Nozzle overheating prevention device.
JP17378281U 1981-11-20 1981-11-20 Direct injection engine injection nozzle overheating prevention device Granted JPS5877146U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17378281U JPS5877146U (en) 1981-11-20 1981-11-20 Direct injection engine injection nozzle overheating prevention device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17378281U JPS5877146U (en) 1981-11-20 1981-11-20 Direct injection engine injection nozzle overheating prevention device

Publications (2)

Publication Number Publication Date
JPS5877146U true JPS5877146U (en) 1983-05-25
JPS6129969Y2 JPS6129969Y2 (en) 1986-09-03

Family

ID=29965658

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17378281U Granted JPS5877146U (en) 1981-11-20 1981-11-20 Direct injection engine injection nozzle overheating prevention device

Country Status (1)

Country Link
JP (1) JPS5877146U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007138838A (en) * 2005-11-18 2007-06-07 Toyota Motor Corp Internal combustion engine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007138838A (en) * 2005-11-18 2007-06-07 Toyota Motor Corp Internal combustion engine

Also Published As

Publication number Publication date
JPS6129969Y2 (en) 1986-09-03

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