JPS613962U - diesel engine fuel injection system - Google Patents
diesel engine fuel injection systemInfo
- Publication number
- JPS613962U JPS613962U JP7853885U JP7853885U JPS613962U JP S613962 U JPS613962 U JP S613962U JP 7853885 U JP7853885 U JP 7853885U JP 7853885 U JP7853885 U JP 7853885U JP S613962 U JPS613962 U JP S613962U
- Authority
- JP
- Japan
- Prior art keywords
- fuel injection
- valve
- diesel engine
- hydraulic pressure
- injection system
- 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
Landscapes
- Fuel-Injection Apparatus (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来のディーゼル機関の燃料噴射装置を示す説
明図、第２図は第１図の装置の噴射特性を示す線図、第
３図は本考案による１実施例の燃料噴射装置を示す説明
図、第４図は第３図の装置の噴射特性を示す線図、第−
５図は本考案による他の実施例の燃料噴射装置を示す説
明図、第６図は本考案による他の実施例の燃料噴射弁閉
止圧調整装置を示す説明図である。
１・・・燃料カム、５・・・プランジャ、６・・・プラ
ンジャバレル、７・・・吐出弁、８・・・噴射管、５１
・・・切欠リード部、６１・・・給油孔、６２・・・排
油孔、１００・・・燃料噴射ポンプ本体、９・・・燃料
噴射弁本体、１１・・・針弁、９０１・・・油溜、１０
１・・・カム、１０５・・・プラ冫ジャ、１０６・・・
プランジャバレル、１０７・・・吐出弁、１０８・・・
送油管、１０９・・・送油管、１０００・・・燃料噴射
弁閉止圧調整装置、１０５１，１０５２・・・切欠リー
ド部、１０６１・・・給油孔、１０６２・・・排油孔、
１１０１・・・油圧室、１７・・・閉弁圧調整ピストン
。Fig. 1 is an explanatory diagram showing a conventional fuel injection device for a diesel engine, Fig. 2 is a diagram showing the injection characteristics of the device in Fig. 1, and Fig. 3 shows an embodiment of the fuel injection device according to the present invention. An explanatory diagram, FIG. 4 is a diagram showing the injection characteristics of the device in FIG. 3, and FIG.
FIG. 5 is an explanatory diagram showing another embodiment of the fuel injection device according to the present invention, and FIG. 6 is an explanatory diagram showing another embodiment of the fuel injection valve closing pressure adjusting device according to the present invention. DESCRIPTION OF SYMBOLS 1... Fuel cam, 5... Plunger, 6... Plunger barrel, 7... Discharge valve, 8... Injection pipe, 51
... Notch lead part, 61 ... Oil supply hole, 62 ... Oil drain hole, 100 ... Fuel injection pump main body, 9 ... Fuel injection valve main body, 11 ... Needle valve, 901 ...・Oil sump, 10
1...cam, 105...praja, 106...
Plunger barrel, 107...Discharge valve, 108...
Oil feed pipe, 109... Oil feed pipe, 1000... Fuel injection valve closing pressure adjustment device, 1051, 1052... Notch lead portion, 1061... Oil supply hole, 1062... Oil drain hole,
1101... Hydraulic chamber, 17... Valve closing pressure adjustment piston.
Claims (1)
プの作動時期に対応して加圧時期可変に油圧を発生する
燃料噴射弁閉止圧調整装置を燃料噴射ポンプとは別個に
設け上記燃料噴射弁閉止圧調整装置にて燃料の噴射が終
了しようとする一期に油圧を発生させこの油圧を燃料噴
射弁の針弁の背面相当部に設けた弁閉止用油圧室または
燃料噴射弁ばね受を兼ねた閉弁圧調整ピストン上面に導
くように構成したことを特徴とするデイ−ゼル機関の燃
料噴射装置。In a fuel injection acupuncture device for a diesel engine, a fuel injection valve closing pressure adjusting device is provided separately from the fuel injection pump to generate hydraulic pressure at variable pressurization timings corresponding to the operation timing of the fuel injection pump. The adjustment device generates hydraulic pressure in the first phase when fuel injection is about to end, and this hydraulic pressure is used to close the valve in a hydraulic chamber provided on the back surface of the needle valve of the fuel injection valve, or in a valve-closing hydraulic chamber that also serves as a fuel injection valve spring holder. A fuel injection device for a diesel engine, characterized in that the fuel injection device is configured to lead to the upper surface of a valve pressure adjusting piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7853885U JPS613962U (en) | 1985-05-28 | 1985-05-28 | diesel engine fuel injection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7853885U JPS613962U (en) | 1985-05-28 | 1985-05-28 | diesel engine fuel injection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS613962U true JPS613962U (en) | 1986-01-11 |
Family
ID=30622610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7853885U Pending JPS613962U (en) | 1985-05-28 | 1985-05-28 | diesel engine fuel injection system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS613962U (en) |
-
1985
- 1985-05-28 JP JP7853885U patent/JPS613962U/en active Pending
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