JPS63168266U - - Google Patents
Info
- Publication number
- JPS63168266U JPS63168266U JP5989687U JP5989687U JPS63168266U JP S63168266 U JPS63168266 U JP S63168266U JP 5989687 U JP5989687 U JP 5989687U JP 5989687 U JP5989687 U JP 5989687U JP S63168266 U JPS63168266 U JP S63168266U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- valve chamber
- hole
- needle valve
- nozzle
- 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 7
- 239000007924 injection Substances 0.000 claims description 7
- 239000000446 fuel Substances 0.000 claims description 3
Landscapes
- Fuel-Injection Apparatus (AREA)
- Check Valves (AREA)
Description
第１図は本考案によるパイロツト噴射型燃料噴
射ノズルをホール型ノズルに適用した実施例を示
す断面図、第２図は本考案の噴射特性を示すグラ
フである。
１……ノズルボデイ、２……針弁、１１……弁
室、１３……導通孔、１４……オリフイス、１６
……ボール、１９……ジヤーナル部材、２２……
連絡孔。
FIG. 1 is a sectional view showing an embodiment in which a pilot injection type fuel injection nozzle according to the present invention is applied to a hole type nozzle, and FIG. 2 is a graph showing the injection characteristics of the present invention. 1... Nozzle body, 2... Needle valve, 11... Valve chamber, 13... Conduction hole, 14... Orifice, 16
... Ball, 19 ... Journal member, 22 ...
Communication hole.
Claims (1)
料をリークさせてパイロツト噴射を行う噴射ノズ
ルおいて、針弁にチエツク弁を内蔵した盲穴状の
弁室を形成し、この弁室を外部への連絡孔を穿設
したジヤーナル部材により閉止する一方、前記弁
室と針弁受圧部を導通孔で結んだことを特徴とす
るパイロツト噴射型燃料噴射ノズル。 In an injection nozzle that performs pilot injection by leaking fuel as the needle valve slides against the nozzle body and lifts, a blind hole-shaped valve chamber with a built-in check valve is formed in the needle valve, and this valve chamber is connected to the outside. A pilot injection type fuel injection nozzle, characterized in that the valve chamber is closed by a journal member having a hole, and the valve chamber and the needle valve pressure receiving part are connected by a through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5989687U JPS63168266U (en) | 1987-04-22 | 1987-04-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5989687U JPS63168266U (en) | 1987-04-22 | 1987-04-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63168266U true JPS63168266U (en) | 1988-11-01 |
Family
ID=30891823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5989687U Pending JPS63168266U (en) | 1987-04-22 | 1987-04-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63168266U (en) |
-
1987
- 1987-04-22 JP JP5989687U patent/JPS63168266U/ja active Pending