JPS5498427A - Fuel injection pump for internal combustion engine - Google Patents
Fuel injection pump for internal combustion engineInfo
- Publication number
- JPS5498427A JPS5498427A JP424078A JP424078A JPS5498427A JP S5498427 A JPS5498427 A JP S5498427A JP 424078 A JP424078 A JP 424078A JP 424078 A JP424078 A JP 424078A JP S5498427 A JPS5498427 A JP S5498427A
- Authority
- JP
- Japan
- Prior art keywords
- passage
- engine
- fuel
- plunger
- injected
- 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 improve the starting characteristic of the engine by communicating between a pump chamber formed by plunger head surface and a cut-off port formed in a flange base with a passage through a directional control valve to be operated by a hydraulic pressure source which varies according to the number of revolutions of the engine.
CONSTITUTION: When the amount of fuel being injected is increased before reaching a desired value of idling rotation number immediately after the starting of the engine, a piston valve body 43 is not brought into contact with a receiving washer 46, so that a fuel pressure passage 32 and a cut-off passage 34 in a plunger are closed. Accordingly, the fuel is fed under pressure to an injection nozzle through the passage 32 and a discharging passage 14 at a full stroke ranging from the bottom dead center to the top dead center of the plunger regardless of the position of a control sleeve 16, whereby a sufficient amount of fuel is injected to improve the starting characteristic of the engine.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP424078A JPS5498427A (en) | 1978-01-20 | 1978-01-20 | Fuel injection pump for internal combustion engine |
US06/001,285 US4271808A (en) | 1978-01-20 | 1979-01-04 | Fuel injection pump for internal combustion engines |
US06/151,905 US4327696A (en) | 1978-01-20 | 1980-05-21 | Fuel injection pump for internal combustion engines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP424078A JPS5498427A (en) | 1978-01-20 | 1978-01-20 | Fuel injection pump for internal combustion engine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5498427A true JPS5498427A (en) | 1979-08-03 |
Family
ID=11579016
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP424078A Pending JPS5498427A (en) | 1978-01-20 | 1978-01-20 | Fuel injection pump for internal combustion engine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5498427A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6034560U (en) * | 1983-08-16 | 1985-03-09 | 日産自動車株式会社 | Fuel injection pump pilot injector |
-
1978
- 1978-01-20 JP JP424078A patent/JPS5498427A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6034560U (en) * | 1983-08-16 | 1985-03-09 | 日産自動車株式会社 | Fuel injection pump pilot injector |
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