JPH0479968U - - Google Patents
Info
- Publication number
- JPH0479968U JPH0479968U JP12184090U JP12184090U JPH0479968U JP H0479968 U JPH0479968 U JP H0479968U JP 12184090 U JP12184090 U JP 12184090U JP 12184090 U JP12184090 U JP 12184090U JP H0479968 U JPH0479968 U JP H0479968U
- Authority
- JP
- Japan
- Prior art keywords
- needle valve
- nozzle body
- fuel injection
- guide member
- seat portion
- 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 9
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第１図はこの考案の一実施例を示す燃料噴射ノ
ズルの断面図、第２図は第１図の要部の拡大され
た断面図、第３図は第２図の−断面図、第４
図及び第５図は第２図の動作説明図、第６図は従
来例を示す燃料噴射ノズルの断面図、第７図は第
６図の要部の拡大された断面図、第８図は第７図
の−断面図、第９図は第７図の動作説明図で
ある。
７……ノズル本体（ノズルボデイ）、１１……
ニードルバルブ、１３……ニードルチツプ（ノズ
ルボデイ）、１３ａ……内面、１５……燃料噴射
孔、４７……シート面、５１……ニードルガイド
（ガイド部材）、５７……コイルスプリング（弾
性手段）。
Fig. 1 is a sectional view of a fuel injection nozzle showing an embodiment of this invention, Fig. 2 is an enlarged sectional view of the main part of Fig. 1, Fig. 3 is a - sectional view of Fig. 2;
5 and 5 are explanatory diagrams of the operation of FIG. 2, FIG. 6 is a sectional view of a conventional fuel injection nozzle, FIG. 7 is an enlarged sectional view of the main part of FIG. 6, and FIG. 7 is a cross-sectional view, and FIG. 9 is an explanatory diagram of the operation of FIG. 7. 7... Nozzle body (nozzle body), 11...
Needle valve, 13... needle tip (nozzle body), 13a... inner surface, 15... fuel injection hole, 47... seat surface, 51... needle guide (guide member), 57... coil spring (elastic means).
Claims (1)
られたガイド部材にガイドされて移動するニード
ルバルブが収納され、ノズルボデイの先端には、
ニードルバルブが着座可能な凹状円錐面のシート
部及びこのシート部に形成された燃料噴射孔が設
けられ、前記ニードルバルブがシート部に着座し
ているとき燃料噴射孔が閉塞される一方、ニード
ルバルブがシート部から離れたとき前記燃料噴射
孔から燃料が噴射される燃料噴射ノズルにおいて
、前記ガイド部材をノズルボデイに対しニードル
バルブの前記移動方向と直交する方向に移動可能
に設け、ガイド部材をニードルバルブの前記移動
方向側のノズルボデイ側の内面に圧接する弾性手
段を、ガイド部材とノズルボデイとの間に設けた
ことを特徴とする燃料噴射ノズル。 A needle valve that moves while being guided by a guide member provided between the nozzle body and the nozzle body is housed in the nozzle body.
A seat portion having a concave conical surface on which a needle valve can be seated, and a fuel injection hole formed in this seat portion are provided, and when the needle valve is seated on the seat portion, the fuel injection hole is closed, while the needle valve In a fuel injection nozzle in which fuel is injected from the fuel injection hole when the needle valve is separated from the seat part, the guide member is provided so as to be movable relative to the nozzle body in a direction orthogonal to the moving direction of the needle valve, and the guide member A fuel injection nozzle characterized in that an elastic means is provided between the guide member and the nozzle body, the elastic means being in pressure contact with the inner surface of the nozzle body on the moving direction side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12184090U JPH0479968U (en) | 1990-11-22 | 1990-11-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12184090U JPH0479968U (en) | 1990-11-22 | 1990-11-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0479968U true JPH0479968U (en) | 1992-07-13 |
Family
ID=31869670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12184090U Pending JPH0479968U (en) | 1990-11-22 | 1990-11-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0479968U (en) |
-
1990
- 1990-11-22 JP JP12184090U patent/JPH0479968U/ja active Pending
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