JPH0432255U - - Google Patents
Info
- Publication number
- JPH0432255U JPH0432255U JP7373090U JP7373090U JPH0432255U JP H0432255 U JPH0432255 U JP H0432255U JP 7373090 U JP7373090 U JP 7373090U JP 7373090 U JP7373090 U JP 7373090U JP H0432255 U JPH0432255 U JP H0432255U
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- valve
- injection
- passage
- opening pressure
- 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 15
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 238000006073 displacement reaction Methods 0.000 claims 2
- 239000002828 fuel tank Substances 0.000 claims 2
- 230000001105 regulatory effect Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第１図は本考案第１の実施例における燃料噴射
ノズルの要部を説明するための模型図、第２図か
ら第５図までは、第１図に示した要部の作用を説
明するための線図、第６図は本考案第２の実施例
の模型図である。
１……燃料噴射ノズル、１ａ……針弁、１ｂ…
…開弁圧室、２……燃料通路、３……第１の燃料
通路、４……プランジヤ室、４ａ……パイロツト
プランジヤ、５……燃料循環路、６……サージタ
ンク、７……第１通路、８……第２通路、２ａ，
３ａ，５ａ，７ａ，８ａ……チエツク弁、５ｂ，
５０ｂ……規制弁。
Fig. 1 is a model diagram for explaining the main parts of the fuel injection nozzle in the first embodiment of the present invention, and Figs. 2 to 5 are for explaining the operation of the main parts shown in Fig. 1. FIG. 6 is a schematic diagram of the second embodiment of the present invention. 1...Fuel injection nozzle, 1a...needle valve, 1b...
...Valve opening pressure chamber, 2...Fuel passage, 3...First fuel passage, 4...Plunger chamber, 4a...Pilot plunger, 5...Fuel circulation path, 6...Surge tank, 7...No. 1st passage, 8...2nd passage, 2a,
3a, 5a, 7a, 8a...check valve, 5b,
50b...Regulation valve.
Claims (1)
されている燃料通路を有する噴射ノズルにおいて
、 上記燃料通路とは別に上記開弁圧室と燃料噴射
ポンプに接続され、同間に弁を設けた第１の燃料
通路と、 一端がフイードポンプに、他端が燃料タンクに
接続された燃料循環路と、 上記燃料噴射ポンプと上記弁との間に接続され
るプランジヤ室と、 上記プランジヤ室内の初期位置と変位終了時と
の間で摺動可能であつて、上記初期位置から変位
終了位置までを摺動し、摺動ストローク分に相当
する燃料を補助噴射するパイロツトプランジヤと
、 上記プランジヤ室と、上記プランジヤ室下部の
第１の燃料通路に、それぞれ弁を有する第１、第
２の連結路により連結され、且つ、上記燃料循環
路に連結するサージタンクと、 上記サージタンクとフイードポンプの間に設け
た弁と、 上記サージタンクと燃料タンクの間にあり主噴
射の噴射時期を規制する規制弁とからなる燃料噴
射装置。[Scope of Claim for Utility Model Registration] An injection nozzle having a fuel passage connected to a valve-opening pressure chamber for setting the valve-opening pressure of a needle valve, wherein the valve-opening pressure chamber and fuel injection are separate from the fuel passage. a first fuel passage connected to the pump and provided with a valve; a fuel circulation path connected at one end to the feed pump and at the other end to the fuel tank; connected between the fuel injection pump and the valve; and a plunger chamber that is slidable between an initial position in the plunger chamber and the end of displacement, and that slides from the initial position to the end position of displacement and auxiliary fuel corresponding to the sliding stroke. a pilot plunger for injecting; a surge tank connected to the plunger chamber and a first fuel passage in the lower part of the plunger chamber by first and second connecting passages each having a valve, and connected to the fuel circulation passage; A fuel injection device comprising: a valve provided between the surge tank and the feed pump; and a regulating valve located between the surge tank and the fuel tank and regulating the injection timing of main injection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7373090U JPH0432255U (en) | 1990-07-11 | 1990-07-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7373090U JPH0432255U (en) | 1990-07-11 | 1990-07-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0432255U true JPH0432255U (en) | 1992-03-16 |
Family
ID=31612805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7373090U Pending JPH0432255U (en) | 1990-07-11 | 1990-07-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0432255U (en) |
-
1990
- 1990-07-11 JP JP7373090U patent/JPH0432255U/ja active Pending
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