JPH0387872U - - Google Patents
Info
- Publication number
- JPH0387872U JPH0387872U JP14549789U JP14549789U JPH0387872U JP H0387872 U JPH0387872 U JP H0387872U JP 14549789 U JP14549789 U JP 14549789U JP 14549789 U JP14549789 U JP 14549789U JP H0387872 U JPH0387872 U JP H0387872U
- Authority
- JP
- Japan
- Prior art keywords
- chamber
- fuel injection
- plunger
- injection valve
- passage
- 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 14
- 238000002347 injection Methods 0.000 claims description 10
- 239000007924 injection Substances 0.000 claims description 10
- 238000005192 partition Methods 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第１図は本考案による燃料噴射弁の一実施例を
示す概略断面図、第２図は先行技術による燃料噴
射弁を備えた多点式燃料噴射装置の概略断面図、
第３図はエンジン回転数に応じたインテークマニ
ホールド圧力Ｐｍと調整燃圧Ｐｂの関係を示す図
、第４図は調整燃圧Ｐｂと燃料噴射量Ｑ６との関
係を示す図である。
３０……燃料噴射弁、３１……上室、３１ａ…
…上室通路、３２……下室、３２ａ……吐出口、
３３……プランジヤ、３５……バルブ、Ｃ，Ｃ１
，Ｃ２……外周クリヤランス、４６……第九ジエ
ツト、４７……連通路。
FIG. 1 is a schematic sectional view showing an embodiment of a fuel injection valve according to the present invention, FIG. 2 is a schematic sectional view of a multi-point fuel injection device equipped with a fuel injection valve according to the prior art,
FIG. 3 is a diagram showing the relationship between the intake manifold pressure P m and the adjusted fuel pressure P b according to the engine speed, and FIG. 4 is a diagram showing the relationship between the adjusted fuel pressure P b and the fuel injection amount Q 6 . 30...Fuel injection valve, 31...Upper chamber, 31a...
...Upper chamber passage, 32...Lower chamber, 32a...Discharge port,
33... Plunger, 35... Valve, C, C 1
, C 2 ... Outer clearance, 46 ... Ninth jet, 47 ... Communication path.
Claims (1)
る摺動自在なプランジヤと、該プランジヤに連動
して吐出口を開閉作動するバルブとを備えていて
、前記第一室と第二室の圧力差に応じた要求燃料
流量を第二室から噴射せしめて、両者の圧力が等
しい状態でバランスさせるようにした、燃料噴射
装置の燃料噴射弁において、 前記第一室と第一室に圧力を印加する第一室通
路との間に配設されたジエツトと、前記第一室及
び第二室を連通するプランジヤの外周クリヤラン
スと第一室通路とを連通する連通路とを備えたこ
とを特徴とする燃料噴射弁。[Scope of Claim for Utility Model Registration] A slidable plunger that partitions a first chamber and a second chamber having a fuel discharge port, and a valve that opens and closes the discharge port in conjunction with the plunger, In the fuel injection valve of the fuel injection device, the fuel injection valve of the fuel injection device is configured to inject a required fuel flow rate from the second chamber according to the pressure difference between the first chamber and the second chamber so that the pressures of both chambers are balanced in an equal state. A jet disposed between the first chamber and the first chamber passage that applies pressure to the first chamber, and a peripheral clearance of the plunger that communicates the first chamber and the second chamber with the first chamber passage. A fuel injection valve characterized by comprising a communication passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14549789U JPH0387872U (en) | 1989-12-19 | 1989-12-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14549789U JPH0387872U (en) | 1989-12-19 | 1989-12-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0387872U true JPH0387872U (en) | 1991-09-06 |
Family
ID=31692129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14549789U Pending JPH0387872U (en) | 1989-12-19 | 1989-12-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0387872U (en) |
-
1989
- 1989-12-19 JP JP14549789U patent/JPH0387872U/ja active Pending