JPS59156170U - fuel injection valve device - Google Patents
fuel injection valve deviceInfo
- Publication number
- JPS59156170U JPS59156170U JP5055083U JP5055083U JPS59156170U JP S59156170 U JPS59156170 U JP S59156170U JP 5055083 U JP5055083 U JP 5055083U JP 5055083 U JP5055083 U JP 5055083U JP S59156170 U JPS59156170 U JP S59156170U
- Authority
- JP
- Japan
- Prior art keywords
- nozzle
- storage chamber
- valve
- spring storage
- 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
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
、第６図はこの考案の異なる実施例を示す要部の断面図
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、１５・・・ノズルスプリン
グ収納室、２１・・・噴射弁本体、２．２・・・リフト
制御部、２３・・・加圧弁、２４・・・弁体、２５・・
・加圧弁スプリング、２６・・・着座面、２７・・・韮
ヤツプ、２９・・・リターン燃料通路、３１・・・圧力
バランス弁、３２・・・弁体、３３・・・コイルスプリ
ング。Fig. 1 is a sectional view showing an example of a conventional fuel injection valve device, Fig. 2 is a flow rate characteristic diagram thereof, Fig. 3 is an explanatory diagram showing the pressure receiving state of the nozzle part, and Fig. 4 is a fuel injection valve device according to this invention. FIG. 5 is a cross-sectional view of an essential part of the injection valve device, and FIG. 6 is a cross-sectional view of the essential part of a different embodiment of the invention. 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 reservoir, 15 ... Nozzle spring storage chamber, 21 ... Injection valve body, 2.2 ... Lift control section, 23 ... Pressure valve, 24 ... Valve body, 25 ...
・Pressure valve spring, 26...Seating surface, 27...Nihongo, 29...Return fuel passage, 31...Pressure balance valve, 32...Valve body, 33...Coil spring.
Claims (1)
ディに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、該ノズルスプリング収納室内が所定の圧力に高
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 at its tip, and it is slidably inserted into the nozzle body, is biased in the valve closing direction by a nozzle spring, and is opened by the pressure of fuel pumped from the injection pump. A needle valve, 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, the nozzle being interposed in the nozzle. a pressurizing valve that maintains the spring storage chamber in a sealed state and opens when the pressure in the nozzle spring storage chamber rises to a predetermined level; and a pressure balance valve that sometimes allows fuel to flow in from the exit side of the return fuel passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5055083U JPS59156170U (en) | 1983-04-05 | 1983-04-05 | fuel injection valve device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5055083U JPS59156170U (en) | 1983-04-05 | 1983-04-05 | fuel injection valve device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59156170U true JPS59156170U (en) | 1984-10-19 |
Family
ID=30181008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5055083U Pending JPS59156170U (en) | 1983-04-05 | 1983-04-05 | fuel injection valve device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59156170U (en) |
-
1983
- 1983-04-05 JP JP5055083U patent/JPS59156170U/en active Pending
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