JPS60110671U - Pressure booster plunger type fuel injection device - Google Patents
Pressure booster plunger type fuel injection deviceInfo
- Publication number
- JPS60110671U JPS60110671U JP19978483U JP19978483U JPS60110671U JP S60110671 U JPS60110671 U JP S60110671U JP 19978483 U JP19978483 U JP 19978483U JP 19978483 U JP19978483 U JP 19978483U JP S60110671 U JPS60110671 U JP S60110671U
- Authority
- JP
- Japan
- Prior art keywords
- pressure booster
- injection device
- plunger type
- fuel injection
- type fuel
- 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
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来の増圧プランジャ式燃料噴射装置の構成図
、第２図は本考案の増圧プランジャ式燃料噴射装置の計
量行程を示す構成図、第３図は第２図の装置の噴射行程
を示す要部構成図である。
１・・・・・・燃料ポンプ、２・・・・・・燃料タンク
、３・・・・・・増圧プランジャ、４・・・・・・燃料
室、５・・・・・・スプール弁、６・・・・・・プラン
ジャ、７・・・・・・加圧室、８・・・・・・還流管、
９・・・・・・計量用電磁弁、１６・・・・・・作動油
供給管、１７，１８・・・・・・オリフィス、２０・・
・・・・切換弁、２０ａ〜２０ｂ・・・・・・ポート、
２０．２１・・・・・・ケーシング、２１・・・・・・
燃料溜り、２３・・・・・・シリンダ、２４・・・・・
・隔壁、２５・・・・・・貫通孔、２６・・・・・・ポ
ペット弁、２６ａ・・・・・・弁体、２６ｂ・・・・・
・軸、２７・・・・・・ピストン、２８・・・・・・燃
料逃し通路、２９・・・・・・電磁弁。Figure 1 is a block diagram of a conventional pressure booster plunger type fuel injection device, Figure 2 is a block diagram showing the metering stroke of the pressure booster plunger type fuel injection device of the present invention, and Figure 3 is an injection diagram of the device shown in Figure 2. It is a main part configuration diagram showing a process. 1... Fuel pump, 2... Fuel tank, 3... Pressure booster plunger, 4... Fuel chamber, 5... Spool valve , 6... Plunger, 7... Pressurized chamber, 8... Reflux pipe,
9... Solenoid valve for metering, 16... Hydraulic oil supply pipe, 17, 18... Orifice, 20...
...Switching valve, 20a-20b...Port,
20.21...Casing, 21...
Fuel reservoir, 23...Cylinder, 24...
・Partition wall, 25...Through hole, 26...Poppet valve, 26a...Valve body, 26b...
- Shaft, 27... Piston, 28... Fuel relief passage, 29... Solenoid valve.
Claims (1)
射装置の、噴射行程と計量行程とを切り換える切換弁を
、軸内に燃料連通路を備えたポペット弁を用いて構成し
、計量行程では前記通路が増圧プランジャの加圧室を燃
料タンクに連通し、噴射行程ではポペット弁の開弁作動
により前記通路が閉止されるように構成したことを特徴
とする増圧プランジャ式燃料噴射装置。In a pressure booster plunger type fuel injection device that pressurizes fuel using hydraulic pressure, the switching valve that switches between the injection stroke and the metering stroke is configured using a poppet valve with a fuel communication passage in the shaft, and the metering stroke The pressure booster plunger type fuel injection device is characterized in that the passage communicates the pressurizing chamber of the pressure booster plunger with the fuel tank, and the passage is closed by the opening operation of the poppet valve during the injection stroke. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19978483U JPS60110671U (en) | 1983-12-29 | 1983-12-29 | Pressure booster plunger type fuel injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19978483U JPS60110671U (en) | 1983-12-29 | 1983-12-29 | Pressure booster plunger type fuel injection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60110671U true JPS60110671U (en) | 1985-07-26 |
Family
ID=30760027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19978483U Pending JPS60110671U (en) | 1983-12-29 | 1983-12-29 | Pressure booster plunger type fuel injection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60110671U (en) |
-
1983
- 1983-12-29 JP JP19978483U patent/JPS60110671U/en active Pending
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