JPH0219849U - - Google Patents
Info
- Publication number
- JPH0219849U JPH0219849U JP9818288U JP9818288U JPH0219849U JP H0219849 U JPH0219849 U JP H0219849U JP 9818288 U JP9818288 U JP 9818288U JP 9818288 U JP9818288 U JP 9818288U JP H0219849 U JPH0219849 U JP H0219849U
- Authority
- JP
- Japan
- Prior art keywords
- engine
- fuel
- fuel injection
- feed pump
- supply passage
- 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 10
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 239000002828 fuel tank Substances 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Fuel-Injection Apparatus (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Description
第１図は本考案の第一実施例に係る燃料噴射装
置の概略構成図、第２図は本考案の第二実施例に
係る燃料噴射装置の概略構成図、第３図は従来の
燃料噴射装置の概略構成図、第４図はフイード圧
とオーバフロー量との関係を示す説明図、第５図
は従来のフイード圧の特性マツプ、第６図は本考
案に於けるフイード圧の特性マツプである。
３……燃料タンク、５……燃料フイルタ、７…
…燃料ポンプ、１１……燃料噴射ノズル、１３…
…オーバフローバルブ、１７……可変容量型フイ
ードポンプ、１９，３７……燃料供給通路、２１
……エンジン、２３……コントローラ、２５……
電磁比例弁、２７……負荷センサ、２９……エン
ジン回転センサ、３１……可変装置、３３，３５
，３９，４１……作動回路、４３……ユニツトイ
ンジエクタ。
FIG. 1 is a schematic configuration diagram of a fuel injection device according to a first embodiment of the present invention, FIG. 2 is a schematic configuration diagram of a fuel injection device according to a second embodiment of the present invention, and FIG. 3 is a conventional fuel injection system. A schematic configuration diagram of the device, Fig. 4 is an explanatory diagram showing the relationship between feed pressure and overflow amount, Fig. 5 is a characteristic map of conventional feed pressure, and Fig. 6 is a characteristic map of feed pressure in the present invention. be. 3...Fuel tank, 5...Fuel filter, 7...
...Fuel pump, 11...Fuel injection nozzle, 13...
...Overflow valve, 17...Variable displacement feed pump, 19, 37...Fuel supply passage, 21
...Engine, 23...Controller, 25...
Electromagnetic proportional valve, 27... Load sensor, 29... Engine rotation sensor, 31... Variable device, 33, 35
, 39, 41...operating circuit, 43...unit injector.
Claims (1)
通路中に、エンジンにより駆動される可変容量型
のフイードポンプを介装し、且つエンジンの負荷
及び回転数検出手段をエンジンに取り付けると共
に、当該各検出手段からの信号によつて、エンジ
ンが低速高負荷になるに従い上記フイードポンプ
のフイード圧を大きくするよう制御するコントロ
ーラを備えたことを特徴とする直噴式デイーゼル
エンジンの燃料噴射装置。 A variable displacement feed pump driven by the engine is interposed in the fuel supply passage leading from the fuel tank to the fuel injection nozzle, and engine load and rotational speed detection means are attached to the engine, and a 1. A fuel injection device for a direct injection type diesel engine, comprising a controller configured to increase the feed pressure of the feed pump as the engine becomes low speed and high load based on a signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9818288U JPH089389Y2 (en) | 1988-07-25 | 1988-07-25 | Fuel injection system for direct injection diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9818288U JPH089389Y2 (en) | 1988-07-25 | 1988-07-25 | Fuel injection system for direct injection diesel engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0219849U true JPH0219849U (en) | 1990-02-09 |
| JPH089389Y2 JPH089389Y2 (en) | 1996-03-21 |
Family
ID=31324218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9818288U Expired - Lifetime JPH089389Y2 (en) | 1988-07-25 | 1988-07-25 | Fuel injection system for direct injection diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH089389Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10045118B4 (en) * | 2000-09-13 | 2006-02-09 | Brueninghaus Hydromatik Gmbh | Hydraulic system with a main pump and a pre-pressure pump |
| EP3724484A1 (en) * | 2017-12-13 | 2020-10-21 | Robert Bosch GmbH | Pumping unit for feeding fuel, preferably diesel fuel, to an internal combustion engine |
-
1988
- 1988-07-25 JP JP9818288U patent/JPH089389Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH089389Y2 (en) | 1996-03-21 |
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