JPS6072978U - Pressure boosting unit injector rotary valve device - Google Patents
Pressure boosting unit injector rotary valve deviceInfo
- Publication number
- JPS6072978U JPS6072978U JP16462483U JP16462483U JPS6072978U JP S6072978 U JPS6072978 U JP S6072978U JP 16462483 U JP16462483 U JP 16462483U JP 16462483 U JP16462483 U JP 16462483U JP S6072978 U JPS6072978 U JP S6072978U
- Authority
- JP
- Japan
- Prior art keywords
- port
- pressure
- rotary valve
- valve device
- unit injector
- 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
Landscapes
- Fuel-Injection Apparatus (AREA)
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図は燃料噴射装置の構成説明図、第２図はエンジン
回転数と噴射量との関係図、第３図は従来のロータリバ
ルブのスプールの展開図、第４図、は本考案の一実施例
に係るロータリバルブのスプールの展開図、第５図は同
側面図である。
６はロータリバルブ、７はポート、７′は高圧ポート、
１２は圧抜きポート、１３はリリーフ弁、１４はスプー
ル。Fig. 1 is an explanatory diagram of the configuration of the fuel injection device, Fig. 2 is a diagram showing the relationship between engine speed and injection amount, Fig. 3 is an exploded view of the spool of a conventional rotary valve, and Fig. 4 is an illustration of the structure of the present invention. A developed view of the spool of the rotary valve according to the embodiment, and FIG. 5 is a side view of the same. 6 is a rotary valve, 7 is a port, 7' is a high pressure port,
12 is a pressure relief port, 13 is a relief valve, and 14 is a spool.
Claims (1)
ンジェクタに分配供給するロータリバルブ６を備えたも
のにおいて、ロータリバルブ６のスプール１４に高圧ポ
ート７′と調量溝より成るポート７との他に、高圧ポー
ト７′とポート７との中間部分に調量行程に入る前に送
油管４およびインジェクタの上部圧力室５の作動油を一
部逃が゛ す圧抜きポート１２を設け、この圧抜き
ポート１２の出口側にリリーフ弁１３を設けた３とを特
徴とする増圧式ユニットインジェクタのロータリバルブ
装置。In a device equipped with a rotary valve 6 that is driven in synchronization with the engine camshaft and distributes high-pressure fuel to each injector, the spool 14 of the rotary valve 6 has a high-pressure port 7' and a port 7 consisting of a metering groove. In addition, a pressure relief port 12 is provided between the high pressure port 7' and the port 7 to partially release the hydraulic oil in the oil feed pipe 4 and the upper pressure chamber 5 of the injector before entering the metering stroke. 3. A rotary valve device for a pressure increasing unit injector, characterized in that a relief valve 13 is provided on the outlet side of a pressure release port 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16462483U JPS6072978U (en) | 1983-10-26 | 1983-10-26 | Pressure boosting unit injector rotary valve device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16462483U JPS6072978U (en) | 1983-10-26 | 1983-10-26 | Pressure boosting unit injector rotary valve device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6072978U true JPS6072978U (en) | 1985-05-22 |
| JPS6338360Y2 JPS6338360Y2 (en) | 1988-10-11 |
Family
ID=30360874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16462483U Granted JPS6072978U (en) | 1983-10-26 | 1983-10-26 | Pressure boosting unit injector rotary valve device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6072978U (en) |
-
1983
- 1983-10-26 JP JP16462483U patent/JPS6072978U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6338360Y2 (en) | 1988-10-11 |
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