JPS59150979U - fuel injection valve device - Google Patents
fuel injection valve deviceInfo
- Publication number
- JPS59150979U JPS59150979U JP4458283U JP4458283U JPS59150979U JP S59150979 U JPS59150979 U JP S59150979U JP 4458283 U JP4458283 U JP 4458283U JP 4458283 U JP4458283 U JP 4458283U JP S59150979 U JPS59150979 U JP S59150979U
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- nozzle
- valve
- fuel
- storage chamber
- 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図は従来の燃料噴射、弁装置の一例を示す断面図、
第２図はその流量特性図、第３図はその噴口部分の受圧
状態を示す説明図、第４図はこの考案に係る燃料噴射弁
装置の一実施例を示す断面図、第５図はその要部の断面
図である。
１・・・ノズルボディ、２・・・噴口、３′・・・ノズ
ルホルダ、６・・・ノズルナツト、８・・・ニードル弁
、９・・・ノズルスプリング、１０・・・ディスタンス
ピース、１１・・・油溜り、１２． １３． １４・・
・高圧燃料通路、１５・・・ノズルスプリング収納室、
２１・・・噴射弁本体、２２・・・リフト制御部、２３
・・・加圧弁、２４・・・弁体、２５・・・加圧弁スプ
リング、２７・・・キャップ、２９・・・リターン燃料
通路、３１・・・圧力バランス弁、３２・・・弁体、３
３・・・コイルスプリング。
第３図
第５図FIG. 1 is a sectional view showing an example of a conventional fuel injection and valve device.
Fig. 2 is a flow rate characteristic diagram, Fig. 3 is an explanatory diagram showing the pressure receiving state of the nozzle part, Fig. 4 is a cross-sectional view showing one embodiment of the fuel injection valve device according to this invention, and Fig. 5 is the same. FIG. 3 is a cross-sectional view of main parts. DESCRIPTION OF SYMBOLS 1... Nozzle body, 2... Spout, 3'... Nozzle holder, 6... Nozzle nut, 8... Needle valve, 9... Nozzle spring, 10... Distance piece, 11... ...Oil sump, 12. 13. 14...
・High pressure fuel passage, 15... nozzle spring storage chamber,
21... Injection valve body, 22... Lift control section, 23
... Pressure valve, 24... Valve body, 25... Pressure valve spring, 27... Cap, 29... Return fuel passage, 31... Pressure balance valve, 32... Valve body, 3
3...Coil spring. Figure 3 Figure 5
Claims (1)
摺動自在に嵌挿されるとともに、ノズルスプリングにて
閉弁方向に付勢され、かつ噴射ポンプから圧送された油
溜り内の燃料圧力により開弁されるニードル弁と、余剰
燃料が導入されるとともに、上記ニードル弁の摺動に応
答して容積が変化するノズルスプリング収納室と、上記
ノズルスプリング収納室に連通ずるリターン燃料通路に
介装されて上記ノズルスプリング収納室を封止状態に保
つとともに、上記油溜り内の燃料圧力が所定の圧力に高
まると開弁する加圧弁と、上記加圧弁と並列的に配設さ
れ、かつ上記ノズルスプリング収納室内の圧力低下時に
上記リターン燃料通路出口側からの燃料流入を許容する
圧力バランス弁とを備えてなる燃料噴射弁装置。The nozzle body has a nozzle formed therein, and the nozzle body is slidably inserted into the nozzle body, and is biased in the valve closing direction by a nozzle spring, and the valve is opened by the fuel pressure in the oil reservoir that is pressure-fed from the injection pump. a nozzle spring storage chamber into which excess fuel is introduced and whose volume changes in response to sliding of the needle valve; and a return fuel passage communicating with the nozzle spring storage chamber. a pressurizing valve that maintains the nozzle spring storage chamber in a sealed state and opens when the fuel pressure in the oil reservoir rises to a predetermined pressure; A fuel injection valve device comprising: a pressure balance valve that allows fuel to flow in from the exit side of the return fuel passage when the pressure in the room decreases.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4458283U JPS59150979U (en) | 1983-03-28 | 1983-03-28 | fuel injection valve device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4458283U JPS59150979U (en) | 1983-03-28 | 1983-03-28 | fuel injection valve device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59150979U true JPS59150979U (en) | 1984-10-09 |
Family
ID=30175111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4458283U Pending JPS59150979U (en) | 1983-03-28 | 1983-03-28 | fuel injection valve device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59150979U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63168265U (en) * | 1987-04-22 | 1988-11-01 |
-
1983
- 1983-03-28 JP JP4458283U patent/JPS59150979U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63168265U (en) * | 1987-04-22 | 1988-11-01 |
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