JPH0432262U - - Google Patents
Info
- Publication number
- JPH0432262U JPH0432262U JP7508990U JP7508990U JPH0432262U JP H0432262 U JPH0432262 U JP H0432262U JP 7508990 U JP7508990 U JP 7508990U JP 7508990 U JP7508990 U JP 7508990U JP H0432262 U JPH0432262 U JP H0432262U
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- inlet
- passage
- fuel injection
- pressure 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.)
- Granted
Links
- 239000000446 fuel Substances 0.000 claims description 18
- 238000002347 injection Methods 0.000 claims description 10
- 239000007924 injection Substances 0.000 claims description 10
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第１図ａ，ｂは本考案の第１の実施例に係る燃
料噴射ノズルの要部断面図、第２図は燃料噴射率
と時間との関係を本考案に係る燃料噴射ノズルの
場合と従来構造の燃料噴射ノズルの場合とで示す
特性図、第３図は本考案の第２の実施例に係る燃
料噴射ノズルの要部断面図、第４図は第３図中の
−線に沿つた拡大断面図、第５図は第３図に
示した同上燃料噴射ノズルの動作説明図、第６図
は本考案の第３の実施例に係る燃料噴射ノズルの
要部断面図、第７図は一般的な燃料噴射ノズルの
概略構成図である。
１……燃料噴射ノズル、２……ノズルチツプ、
３……ノズルホルダ、４……インレツト部、６，
１８，２５，３３……オリフイス、７……フイー
ドホール（燃料流出路）、１２，１１２，２１２
……プランジヤ、１３……リターンスプリング、
１５……圧力室、１６……燃料流入路、２２……
補助プランジヤ。
Figures 1a and b are sectional views of main parts of a fuel injection nozzle according to the first embodiment of the present invention, and Figure 2 shows the relationship between fuel injection rate and time in the case of the fuel injection nozzle according to the present invention and the conventional one. FIG. 3 is a cross-sectional view of the main part of the fuel injection nozzle according to the second embodiment of the present invention, and FIG. 5 is an explanatory diagram of the operation of the same fuel injection nozzle shown in FIG. 3, FIG. 6 is a sectional view of essential parts of the fuel injection nozzle according to the third embodiment of the present invention, and FIG. 7 is an enlarged sectional view. FIG. 1 is a schematic configuration diagram of a general fuel injection nozzle. 1... Fuel injection nozzle, 2... Nozzle chip,
3... Nozzle holder, 4... Inlet part, 6,
18, 25, 33... Orifice, 7... Feed hole (fuel outflow path), 12, 112, 212
...Plunger, 13...Return spring,
15... Pressure chamber, 16... Fuel inflow path, 22...
Auxiliary plunger.
Claims (1)
の中間部分に燃料噴射ポンプに連結されるインレ
ツト部を設けてなる燃料噴射ノズルにおいて、前
記インレツト部内に形成されて一端側に燃料流入
路を有するとともに他端側に燃料流出路を有して
なる圧力室と、前記インレツト部の燃料流入路お
よび燃料流出路の内径寸法よりも小さいオリフイ
スを前後方向に有して前記圧力室内に摺動自在に
配置されたプランジヤと、前記プランジヤを前記
インレツト部内の燃料流入路側へ付勢しているリ
ターンスプリングとを備えたことを特徴とする燃
料噴射ノズル。 In a fuel injection nozzle, an inlet part connected to a fuel injection pump is provided in the middle part of a nozzle holder with a nozzle tip attached to the tip thereof, and the inlet part is formed in the inlet part and has a fuel inflow passage on one end side, and has a fuel inlet passage on the other end side. a pressure chamber having a fuel outflow passage; and a plunger having an orifice in the front-rear direction that is smaller than the inner diameter dimensions of the fuel inflow passage and the fuel outflow passage of the inlet portion and slidably disposed within the pressure chamber; and a return spring urging the plunger toward the fuel inflow path in the inlet section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990075089U JP2522705Y2 (en) | 1990-07-13 | 1990-07-13 | Fuel injection nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990075089U JP2522705Y2 (en) | 1990-07-13 | 1990-07-13 | Fuel injection nozzle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0432262U true JPH0432262U (en) | 1992-03-16 |
| JP2522705Y2 JP2522705Y2 (en) | 1997-01-16 |
Family
ID=31615359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990075089U Expired - Lifetime JP2522705Y2 (en) | 1990-07-13 | 1990-07-13 | Fuel injection nozzle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2522705Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0281952A (en) * | 1988-09-01 | 1990-03-22 | Lucas Ind Plc | Fuel injector |
-
1990
- 1990-07-13 JP JP1990075089U patent/JP2522705Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0281952A (en) * | 1988-09-01 | 1990-03-22 | Lucas Ind Plc | Fuel injector |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2522705Y2 (en) | 1997-01-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0432262U (en) | ||
| JPS63176563U (en) | ||
| JPH0449271U (en) | ||
| JPS6173074U (en) | ||
| JPH0432263U (en) | ||
| JPS6179728U (en) | ||
| JPS60185057U (en) | Hole type fuel injection nozzle | |
| JPS62174651U (en) | ||
| JPS6378189U (en) | ||
| JPH0243462U (en) | ||
| JPH0449662U (en) | ||
| JPH02149409U (en) | ||
| JPH01130069U (en) | ||
| JPH03108859U (en) | ||
| JPH0269064U (en) | ||
| JPS60171958U (en) | Satsukresu type hole type fuel injection nozzle | |
| JPS6449769U (en) | ||
| JPH03119568U (en) | ||
| JPH0449657U (en) | ||
| JPS6195974U (en) | ||
| JPH02135774U (en) | ||
| JPS6095170U (en) | fuel injection nozzle | |
| JPH0246070U (en) | ||
| JPH038660U (en) | ||
| JPS6140568U (en) | Differential pressure on/off valve with check valve |