JPH041664U - - Google Patents
Info
- Publication number
- JPH041664U JPH041664U JP4038990U JP4038990U JPH041664U JP H041664 U JPH041664 U JP H041664U JP 4038990 U JP4038990 U JP 4038990U JP 4038990 U JP4038990 U JP 4038990U JP H041664 U JPH041664 U JP H041664U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- guide part
- valve guide
- nozzle
- nozzle body
- 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 3
- 239000007924 injection Substances 0.000 claims description 3
- 239000000446 fuel Substances 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims 2
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第１図は本考案に係る燃料噴射ノズルの縦断面
図、第２図は第１図の−線断面図、第３図は
渦流室における負荷と回転速度に対する噴射率の
関係を示す図、第４図は渦流室の断面図である。
図中、１はノズルボデイ、５は第１弁案内部、
５ａは第１針弁、８は第１弁座、１０は第１噴口
、１１は第２弁案内部、１１ａは第２針弁、１４
は第２弁座、１６は第２噴口である。
FIG. 1 is a vertical sectional view of a fuel injection nozzle according to the present invention, FIG. 2 is a sectional view taken along the line - - in FIG. Figure 4 is a cross-sectional view of the swirl chamber. In the figure, 1 is the nozzle body, 5 is the first valve guide,
5a is a first needle valve, 8 is a first valve seat, 10 is a first nozzle, 11 is a second valve guide, 11a is a second needle valve, 14
1 is a second valve seat, and 16 is a second nozzle.
Claims (1)
噴口を開閉すべく筒状の第１弁案内部を形成する
と共に、該案内部に外周面を摺動面とする第１針
弁を昇降自在に設け、上記ノズルボデイ内に上記
弁案内部を同心円状に包囲して環状の第２弁案内
部を形成し、該第２弁案内部に内・外周面を摺動
面とする有底筒体状の第２針弁を摺動自在に収容
し、上記第２弁案内部の先端に下方に傾斜する円
錐状弁座を形成し、該弁座に第２噴口を開口した
ことを特徴とする油圧開弁形燃料噴射ノズル。 A first hole formed at the tip of the nozzle body inside the nozzle body.
A cylindrical first valve guide part is formed to open and close the nozzle, and a first needle valve whose outer peripheral surface is a sliding surface is provided on the guide part so as to be movable up and down, and the valve guide part is arranged concentrically within the nozzle body. an annular second valve guide part, and a second needle valve in the form of a bottomed cylinder whose inner and outer peripheral surfaces are sliding surfaces is slidably accommodated in the second valve guide part. A hydraulic valve-opening type fuel injection nozzle, characterized in that a conical valve seat inclined downward is formed at the tip of the second valve guide, and a second injection port is opened in the valve seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4038990U JPH041664U (en) | 1990-04-16 | 1990-04-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4038990U JPH041664U (en) | 1990-04-16 | 1990-04-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH041664U true JPH041664U (en) | 1992-01-08 |
Family
ID=31550137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4038990U Pending JPH041664U (en) | 1990-04-16 | 1990-04-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH041664U (en) |
-
1990
- 1990-04-16 JP JP4038990U patent/JPH041664U/ja active Pending