JPS63102968U - - Google Patents
Info
- Publication number
- JPS63102968U JPS63102968U JP19751386U JP19751386U JPS63102968U JP S63102968 U JPS63102968 U JP S63102968U JP 19751386 U JP19751386 U JP 19751386U JP 19751386 U JP19751386 U JP 19751386U JP S63102968 U JPS63102968 U JP S63102968U
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- piston
- needle
- pressure spring
- fuel injection
- 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 8
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第１図は本考案の第１実施例に係るデイーゼル
エンジンの燃料噴射ノズルの縦断面図、第２図は
第１図の装置の部の拡大断面図、第３図は第１
図の燃料噴射ノズルの噴射特性図、第４図は本考
案の第２実施例に係るデイーゼルエンジンの燃料
噴射ノズルの部分断面図、第５図は従来一般の燃
料噴射ノズルの概略構成図、である。
１１ａ，１１ｂ，３５……ノズルボデイ、１２
……噴孔、１３……ニードル、１４，３７……フ
ユーカルフイードホール、１５……油溜り、１６
……プレツシヤステージ部、１７……リターン通
路、１８，３１……プレツシヤスプリング、１９
，３２……ピストン、２１，３４……圧力室、２
３……スプリング、２４……ピストン、３６……
スプリング。
1 is a vertical sectional view of a fuel injection nozzle of a diesel engine according to a first embodiment of the present invention, FIG. 2 is an enlarged sectional view of the device shown in FIG. 1, and FIG.
4 is a partial sectional view of the fuel injection nozzle of a diesel engine according to the second embodiment of the present invention, and FIG. 5 is a schematic configuration diagram of a conventional general fuel injection nozzle. be. 11a, 11b, 35... Nozzle body, 12
... Nozzle hole, 13 ... Needle, 14, 37 ... Fuel feed hole, 15 ... Oil sump, 16
... Pressure stage section, 17 ... Return passage, 18, 31 ... Pressure spring, 19
, 32... Piston, 21, 34... Pressure chamber, 2
3... Spring, 24... Piston, 36...
spring.
Claims (1)
レツシヤスプリングとを内蔵したデイーゼルエン
ジンの燃料噴射ノズルにおいて、プレツシヤスプ
リングに対してニードル付勢側と反対側に、端面
にプレツシヤスプリングの端部が着座し、プレツ
シヤスプリングの軸に沿う方向に移動可能でかつ
プレツシヤスプリング側への一定量以上の移動が
規制されたピストンを設け、該ピストンのプレツ
シヤスプリングと反対側部位に、燃料噴射ノズル
への燃料の送油圧を導入可能な圧力室を設け、前
記ピストンの圧力室からの受圧面積を、ニードル
の開弁のための油溜りにおける受圧面積よりも大
にするとともに、前記送油圧が一定以上になつた
ときにのみ、前記圧力室からの受圧によるピスト
ンのプレツシヤスプリング側への移動力を前記油
溜りにおける受圧によるニードルの開弁方向への
移動力よりも大にするピストン移動制御機構を設
けたことを特徴とするデイーゼルエンジンの燃料
噴射ノズル。 In a fuel injection nozzle for a diesel engine that incorporates a needle and a pressure spring that biases the needle in a closing direction, the pressure spring is provided on the end face on the side opposite to the needle biasing side with respect to the pressure spring. A piston is provided, the end of which is seated, is movable in the direction along the axis of the pressure spring, and movement of more than a certain amount toward the pressure spring is restricted, and the piston is opposite to the pressure spring. A pressure chamber is provided in the side portion to which the pressure for sending fuel to the fuel injection nozzle can be introduced, and the pressure receiving area of the piston from the pressure chamber is made larger than the pressure receiving area of the oil reservoir for opening the needle. At the same time, only when the sending oil pressure exceeds a certain level, the force of moving the piston toward the pressure spring side due to the pressure received from the pressure chamber is greater than the force of moving the needle in the valve opening direction due to the pressure received in the oil reservoir. A diesel engine fuel injection nozzle characterized by having a piston movement control mechanism that increases the piston movement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986197513U JPH0447415Y2 (en) | 1986-12-24 | 1986-12-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986197513U JPH0447415Y2 (en) | 1986-12-24 | 1986-12-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63102968U true JPS63102968U (en) | 1988-07-04 |
| JPH0447415Y2 JPH0447415Y2 (en) | 1992-11-09 |
Family
ID=31157324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986197513U Expired JPH0447415Y2 (en) | 1986-12-24 | 1986-12-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0447415Y2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2157937B1 (en) | 2007-06-04 | 2017-03-22 | Sequent Medical, Inc. | Devices for treatment of vascular defects |
| AU2009242528B2 (en) | 2008-05-02 | 2015-12-10 | Microvention, Inc. | Filamentary devices for treatment of vascular defects |
| US9078658B2 (en) | 2013-08-16 | 2015-07-14 | Sequent Medical, Inc. | Filamentary devices for treatment of vascular defects |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6155362A (en) * | 1984-08-25 | 1986-03-19 | Isuzu Motors Ltd | Fuel injection nozzle |
-
1986
- 1986-12-24 JP JP1986197513U patent/JPH0447415Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6155362A (en) * | 1984-08-25 | 1986-03-19 | Isuzu Motors Ltd | Fuel injection nozzle |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0447415Y2 (en) | 1992-11-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS62237076A (en) | Fuel injection nozzle for internal combustion engine | |
| JPS63102968U (en) | ||
| JPH0387870U (en) | ||
| JPH03119567U (en) | ||
| JPH0212063U (en) | ||
| JPH01114979U (en) | ||
| JPS63154767U (en) | ||
| JPS62195664U (en) | ||
| JPS6361571U (en) | ||
| JPS6312661U (en) | ||
| JPS6317863U (en) | ||
| JPS6165270U (en) | ||
| JPS6365855U (en) | ||
| JPS6345468U (en) | ||
| JPS61118967U (en) | ||
| JPS6272470U (en) | ||
| JPS6367660U (en) | ||
| JPS6159867U (en) | ||
| JPS6421263U (en) | ||
| JPH0417168U (en) | ||
| JPS63166660U (en) | ||
| JPS62150582U (en) | ||
| JPH01166762U (en) | ||
| JPH0323649U (en) | ||
| JPH02124259U (en) |