JPH0399864U - - Google Patents
Info
- Publication number
- JPH0399864U JPH0399864U JP744990U JP744990U JPH0399864U JP H0399864 U JPH0399864 U JP H0399864U JP 744990 U JP744990 U JP 744990U JP 744990 U JP744990 U JP 744990U JP H0399864 U JPH0399864 U JP H0399864U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- passage
- opening pressure
- injection nozzle
- chamber
- 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
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 239000000446 fuel Substances 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第１図は本考案実施例による燃料噴射装置に用
いられる噴射ノズルの要部を説明するための模型
図、第２図は第１図に示した要部の作用を説明す
るための第１図相当の模型図、第３図は第１図に
示した要部の作用を説明するための線図である。
１……噴射ノズル、１Ａ……針弁、１Ｂ……開
弁圧室、１Ｃ……燃料通路、１Ｄ……スプールバ
ルブ室、２……スプールバルブ、３……第１の通
路、４……第２の通路。
Fig. 1 is a model diagram for explaining the main parts of the injection nozzle used in the fuel injection device according to the embodiment of the present invention, and Fig. 2 is a schematic diagram for explaining the action of the main parts shown in Fig. 1. A corresponding model diagram, FIG. 3, is a diagram for explaining the function of the main parts shown in FIG. 1. 1... Injection nozzle, 1A... needle valve, 1B... valve opening pressure chamber, 1C... fuel passage, 1D... spool valve chamber, 2... spool valve, 3... first passage, 4... Second passage.
Claims (1)
めの開弁圧室に接続される燃料通路の一部を作動
圧入力側として接続されているスプールバルブ室
を設け、このバルブ室には、スプールバルブの初
期位置からの変位始端側に小面積に設定された第
１の通路を、そして上記スプールバルブの変位終
端側に上記第１の通路よりも大面積に設定された
第２の通路を設け、これら各通路を上記針弁の開
弁圧室に接続したことを特徴とする噴射ノズルを
備えた燃料噴射装置。 A spool valve chamber is provided to which a part of the fuel passage connected to the valve opening pressure chamber for setting the opening pressure of the needle valve in the injection nozzle is connected as an operating pressure input side. A first passage having a small area is provided on a displacement starting end side of the valve from an initial position, and a second passage having a larger area than the first passage is provided on a displacement terminal side of the spool valve. A fuel injection device comprising an injection nozzle, characterized in that each of these passages is connected to a valve opening pressure chamber of the needle valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP744990U JPH0399864U (en) | 1990-01-29 | 1990-01-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP744990U JPH0399864U (en) | 1990-01-29 | 1990-01-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0399864U true JPH0399864U (en) | 1991-10-18 |
Family
ID=31511107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP744990U Pending JPH0399864U (en) | 1990-01-29 | 1990-01-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0399864U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002257007A (en) * | 2001-02-26 | 2002-09-11 | Mitsubishi Heavy Ind Ltd | Fuel injection system |
-
1990
- 1990-01-29 JP JP744990U patent/JPH0399864U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002257007A (en) * | 2001-02-26 | 2002-09-11 | Mitsubishi Heavy Ind Ltd | Fuel injection system |
| JP4544759B2 (en) * | 2001-02-26 | 2010-09-15 | 三菱重工業株式会社 | Fuel injection device |