JPS5692346A - Fuel injection device - Google Patents
Fuel injection deviceInfo
- Publication number
- JPS5692346A JPS5692346A JP16768479A JP16768479A JPS5692346A JP S5692346 A JPS5692346 A JP S5692346A JP 16768479 A JP16768479 A JP 16768479A JP 16768479 A JP16768479 A JP 16768479A JP S5692346 A JPS5692346 A JP S5692346A
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- pressure
- passage
- chamber
- groove
- 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
Abstract
PURPOSE: To arrange so that a high-pressure injection may be realized in a short period of time, by providing a pressure amplification mechanism to increase the pressure of fuel introduced into a fuel chamber and at the same time, installing a pressure accumulation nozzle which opens when a fuel pressure in above a prearranged pressure level, on a fuel injection valve body.
CONSTITUTION: In the process of metering where a spool valve 2 of a control valve 28 is at an uppermost position, a fuel supply channel 3 is open into a passage 4 through the intermediary of a through groove 13 and a low-pressure fuel is fed into a fuel chamber 18 on a pressure amplification mechanism A. Simultaneously fuel upward of an amplification piston 16 is caused to leak from a leakage passage 7 through a passage 6 and a through groove 15, so that the amplification piston 16 and a plunger 17 are moved upward. Then a spool valve 2 is brought down by means of a solenoid 1 at an electric signal. For this reason, a low-pressure fuel flows into a passage 5 from the through groove 13 and following the downward movement of the piston 16 and the plunger 17, fuel in the fuel chamber 18 enters a pressure accumulation chamber 21 for a pressure accumulation nozzle B through a check valve 19. After this process, fuel is injected from an injection nozzle 23 on account of an upward-moving needle 22.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16768479A JPS5692346A (en) | 1979-12-25 | 1979-12-25 | Fuel injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16768479A JPS5692346A (en) | 1979-12-25 | 1979-12-25 | Fuel injection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5692346A true JPS5692346A (en) | 1981-07-27 |
Family
ID=15854302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16768479A Pending JPS5692346A (en) | 1979-12-25 | 1979-12-25 | Fuel injection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5692346A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5985433A (en) * | 1982-09-16 | 1984-05-17 | サーボジェット エレクトロニック システムス リミテッド | Device and method of accurately controlling fuel injection of diesel engine |
-
1979
- 1979-12-25 JP JP16768479A patent/JPS5692346A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5985433A (en) * | 1982-09-16 | 1984-05-17 | サーボジェット エレクトロニック システムス リミテッド | Device and method of accurately controlling fuel injection of diesel engine |
| JPH0567773B2 (en) * | 1982-09-16 | 1993-09-27 | Bii Kee Emu Inc |
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