JPH0264756U - - Google Patents
Info
- Publication number
- JPH0264756U JPH0264756U JP14197788U JP14197788U JPH0264756U JP H0264756 U JPH0264756 U JP H0264756U JP 14197788 U JP14197788 U JP 14197788U JP 14197788 U JP14197788 U JP 14197788U JP H0264756 U JPH0264756 U JP H0264756U
- Authority
- JP
- Japan
- Prior art keywords
- nozzle
- seat surface
- fuel injection
- opening
- needle
- 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
Links
- 239000000446 fuel Substances 0.000 claims description 10
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
- 239000008186 active pharmaceutical agent Substances 0.000 description 2
Description
第１図は本考案の一実施例による燃料噴射ノズ
ル２０の噴口６部分の閉弁状態を示す要部拡大断
面図、第２図は本考案の他の実施例による燃料噴
射ノズル３０の噴口６部分の閉弁状態を示す要部
拡大断面図、第３図は従来の燃料噴射ノズル１の
縦断面図、第４図は同、噴口６部分の閉弁状態を
示す要部拡大断面図、第５図は同、噴口６部分の
開弁状態を示す要部拡大断面図である。
１……燃料噴射ノズル、２……ノズルボデイ、
３……燃料通路、４……燃料溜り室、５……ガイ
ドホール、６……噴口、６Ａ……噴口６の上側の
開口縁部、６Ｂ……噴口６の下側の開口縁部、７
……ニードル弁、７Ｘ……ニードル弁７の軸線、
８……プレツシヤステージ、９……サツク部、１
０……ボデイシート面、１１……ニードルシート
面、１２……尖端、２０……燃料噴射ノズル、２
１……サツク部、２１Ｘ……サツク部２１の軸線
、３０……燃料噴射ノズル、３１……チヤンフア
（面取り部）、Ａ１……左側の噴口６の軸中心角
、Ａ２……右側の噴口６の軸中心角、Ｂ１……左
側の噴口６の傾斜角度、Ｂ２……右側の噴口６の
傾斜角度、ＤＮ……ニードル弁７の先端部分７Ａ
の外径、ＤＳ……サツク部９の開口部の内径、Δ
Ｅ……偏心距離、ＤＮ……ニードル弁７の先端部
分７Ａの外径、ＤＳ……サツク部９の開口部の内
径、Ｋ１……サツク部２１の開口縁部と左側の噴
口６の下側の開口縁部６Ｂとの間の間隔、Ｋ２…
…サツク部２１の開口縁部と右側の噴口６の下側
の開口縁部６Ｂとの間の間隔、Ｓ……シート絞り
部の長さ、Ｓ１……左側の噴口６のシート絞り部
の長さ、Ｓ２……右側の噴口６のシート絞り部の
長さ。
FIG. 1 is an enlarged sectional view of main parts showing the closed state of the nozzle 6 portion of a fuel injection nozzle 20 according to an embodiment of the present invention, and FIG. 2 is an enlarged sectional view of the nozzle 6 of a fuel injection nozzle 30 according to another embodiment of the present invention. 3 is a vertical sectional view of the conventional fuel injection nozzle 1, and FIG. 4 is an enlarged sectional view of the main part showing the nozzle 6 part in the closed state. FIG. 5 is an enlarged cross-sectional view of the main part showing the valve opening state of the nozzle 6 portion. 1...Fuel injection nozzle, 2...Nozzle body,
3... Fuel passage, 4... Fuel reservoir chamber, 5... Guide hole, 6... Nozzle port, 6A... Upper opening edge of the nozzle 6, 6B... Lower opening edge of the nozzle 6, 7
... Needle valve, 7X ... Axis of needle valve 7,
8... Pressure stage, 9... Suck section, 1
0... Body seat surface, 11... Needle seat surface, 12... Tip, 20... Fuel injection nozzle, 2
DESCRIPTION OF SYMBOLS 1... Suck part, 21X... Axis of the suck part 21, 30... Fuel injection nozzle, 31... Chamfer (chamfered part), A1... Axis center angle of left nozzle 6, A2... Right nozzle 6 Axis center angle, B1...Inclination angle of the left nozzle 6, B2...Inclination angle of the right nozzle 6, DN...Tip portion 7A of the needle valve 7
outer diameter, DS...inner diameter of the opening of the sac part 9, Δ
E...Eccentric distance, DN...Outer diameter of the tip portion 7A of the needle valve 7, DS...Inner diameter of the opening of the sac part 9, K1...The opening edge of the sac part 21 and the lower side of the left nozzle 6 The distance between the opening edge 6B and the opening edge 6B, K2...
... Distance between the opening edge of the sac part 21 and the lower opening edge 6B of the right nozzle 6, S: Length of the sheet constriction section, S1: Length of the sheet constriction section of the left nozzle 6 S2... Length of the seat throttle part of the right nozzle 6.
Claims (1)
ボデイシート面に開口する複数の噴口とを形成し
たノズルボデイと、 このノズルボデイ内に摺動可能に収納するとと
もに、前記噴口を開閉可能に前記ボデイシート面
にシートするニードルシートを形成したニードル
弁とを有する燃料噴射ノズルであつて、 前記サツク部の開口部を前記ニードル弁の軸線
に対して偏心させ、該ニードル弁の前記ニードル
シート面と前記ノズルボデイの前記ボデイシート
面との間によるシート絞り期間を各噴口間におい
て調整可能したことを特徴とする燃料噴射ノズル
。[Claims for Utility Model Registration] A nozzle body having a sac portion at its tip, a body seat surface, and a plurality of nozzles opening to the body seat surface; A fuel injection nozzle having a needle valve formed with a needle seat seated on the body seat surface so as to be able to open and close the nozzle opening, the opening of the sac part being eccentric with respect to the axis of the needle valve, A fuel injection nozzle, characterized in that a sheet throttling period between the needle seat surface of the nozzle body and the body seat surface of the nozzle body can be adjusted between each injection port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14197788U JPH0264756U (en) | 1988-11-01 | 1988-11-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14197788U JPH0264756U (en) | 1988-11-01 | 1988-11-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0264756U true JPH0264756U (en) | 1990-05-15 |
Family
ID=31407523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14197788U Pending JPH0264756U (en) | 1988-11-01 | 1988-11-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0264756U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0614466U (en) * | 1992-07-28 | 1994-02-25 | いすゞ自動車株式会社 | Hall type fuel injection nozzle |
| JP2009024683A (en) * | 2007-07-24 | 2009-02-05 | Hitachi Ltd | Injector with plurality of injection holes, cylinder gasoline injection type internal combustion engine with injector, and control method thereof |
-
1988
- 1988-11-01 JP JP14197788U patent/JPH0264756U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0614466U (en) * | 1992-07-28 | 1994-02-25 | いすゞ自動車株式会社 | Hall type fuel injection nozzle |
| JP2009024683A (en) * | 2007-07-24 | 2009-02-05 | Hitachi Ltd | Injector with plurality of injection holes, cylinder gasoline injection type internal combustion engine with injector, and control method thereof |