JPS62193174U - - Google Patents
Info
- Publication number
- JPS62193174U JPS62193174U JP8295986U JP8295986U JPS62193174U JP S62193174 U JPS62193174 U JP S62193174U JP 8295986 U JP8295986 U JP 8295986U JP 8295986 U JP8295986 U JP 8295986U JP S62193174 U JPS62193174 U JP S62193174U
- Authority
- JP
- Japan
- Prior art keywords
- pressurizing chamber
- spring
- fuel injection
- piston
- pilot
- 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
- 238000002347 injection Methods 0.000 claims description 10
- 239000007924 injection Substances 0.000 claims description 10
- 239000000446 fuel Substances 0.000 claims description 7
- 238000009825 accumulation Methods 0.000 claims description 4
- 230000005489 elastic deformation Effects 0.000 description 1
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第１図ないし第４図は本考案の一実施例を示し
、第１図は本実施例のパイロツト噴射装置の構成
を表わす破断説明図、第２図はこのパイロツト噴
射装置が用いられる燃料噴射ポンプの構成を表わ
す破断説明図、第３図はスプリングの弾性変形量
とバネ定数との関係を示すグラフ、第４図はバネ
定数とアキユムレートピストンの移動速度との関
係を示すグラフ、第５図ないし第１０図は本考案
のスプリングの様々なる形状を表わす断面図、で
ある。
１……燃料噴射ポンプ、１７……加圧室、２０
……パイロツト噴射装置、４３……アキユムレー
トピストン、４４……シリンダ、４５……ストツ
パ、４６……スプリング。
1 to 4 show one embodiment of the present invention, FIG. 1 is a cutaway explanatory view showing the configuration of the pilot injection device of this embodiment, and FIG. 2 is a fuel injection pump in which this pilot injection device is used. 3 is a graph showing the relationship between the elastic deformation amount of the spring and the spring constant. FIG. 4 is a graph showing the relationship between the spring constant and the moving speed of the accumulation rate piston. 10 through 10 are cross-sectional views showing various shapes of the spring of the present invention. 1... Fuel injection pump, 17... Pressurization chamber, 20
... Pilot injection device, 43 ... Accumulate piston, 44 ... Cylinder, 45 ... Stopper, 46 ... Spring.
Claims (1)
されたシリンダと、 該シリンダ内に嵌挿され、上記加圧室の燃料圧
力により押圧移動されるアキユムレートピストン
と、 該アキユムレートピストンを上記加圧室側に押
圧付勢するスプリングと、 上記アキユムレートピストンの、上記加圧室内
の燃料圧力上昇により移動する移動量を制限する
ストツパと、 を備え、上記燃料噴射ポンプの燃料主噴射の前に
パイロツト噴射を実行させるパイロツト噴射装置
において、 上記スプリングが、上記アキユムレートピスト
ンの移動量に応じて異なるバネ定数を持つことを
特徴とする燃料噴射ポンプのパイロツト噴射装置
。[Scope of Claim for Utility Model Registration] A cylinder connected to a pressurizing chamber of a fuel injection pump through a communication hole, and an accumulator that is inserted into the cylinder and is pressed and moved by the fuel pressure in the pressurizing chamber. A piston, a spring that presses the accumulation piston toward the pressurizing chamber, and a stopper that limits the amount of movement of the accumulation piston due to an increase in fuel pressure in the pressurizing chamber. , a pilot injection device for performing pilot injection before main fuel injection of the fuel injection pump, wherein the spring has a spring constant that differs depending on the amount of movement of the accumulation piston. pilot injector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986082959U JPH0447414Y2 (en) | 1986-05-30 | 1986-05-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986082959U JPH0447414Y2 (en) | 1986-05-30 | 1986-05-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62193174U true JPS62193174U (en) | 1987-12-08 |
| JPH0447414Y2 JPH0447414Y2 (en) | 1992-11-09 |
Family
ID=30936096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986082959U Expired JPH0447414Y2 (en) | 1986-05-30 | 1986-05-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0447414Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61106971A (en) * | 1984-10-31 | 1986-05-24 | Diesel Kiki Co Ltd | Fuel injection pump |
-
1986
- 1986-05-30 JP JP1986082959U patent/JPH0447414Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61106971A (en) * | 1984-10-31 | 1986-05-24 | Diesel Kiki Co Ltd | Fuel injection pump |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0447414Y2 (en) | 1992-11-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS62193174U (en) | ||
| JPS6378163U (en) | ||
| JPS6243175U (en) | ||
| JPS63138468U (en) | ||
| JPH027361U (en) | ||
| JPH0213165U (en) | ||
| JPS63140166U (en) | ||
| JPS62195662U (en) | ||
| JPS59152173U (en) | Pressure booster plunger type fuel injection device | |
| JPH01131865U (en) | ||
| JPS62148773U (en) | ||
| JPH0212062U (en) | ||
| JPS58134666U (en) | Fuel injection pump device for mixed supply of two types of fuel | |
| JPS6346670U (en) | ||
| JPS6252245U (en) | ||
| JPS60124581U (en) | fuel injection nozzle | |
| JPS62152069U (en) | ||
| JPS58163675U (en) | Pressure boosting unit injector | |
| JPS62150577U (en) | ||
| JPH0212061U (en) | ||
| JPS62203962U (en) | ||
| JPH02124260U (en) | ||
| JPS6346671U (en) | ||
| JPH0180662U (en) | ||
| JPH0212059U (en) |