JPS6393467U - - Google Patents
Info
- Publication number
- JPS6393467U JPS6393467U JP18877986U JP18877986U JPS6393467U JP S6393467 U JPS6393467 U JP S6393467U JP 18877986 U JP18877986 U JP 18877986U JP 18877986 U JP18877986 U JP 18877986U JP S6393467 U JPS6393467 U JP S6393467U
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- pressure
- fuel injection
- valve
- nozzle
- 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
- 239000000446 fuel Substances 0.000 claims description 17
- 238000002347 injection Methods 0.000 claims description 10
- 239000007924 injection Substances 0.000 claims description 10
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 claims 1
- 230000000149 penetrating effect Effects 0.000 claims 1
- 230000035515 penetration Effects 0.000 description 1
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第１図は本考案による燃料噴射装置の一実施例
における吐出弁部分の構成を示す正断面図、第２
図はその吐出弁部分の右側からみた側面図、第３
図は吐出弁部分の他の構成を示す正断面図、第４
図は燃料噴射装置全体の構成を示す正断面図であ
る。
１……ケーシング、３……プランジヤバレル、
５……プランジヤ、６……高圧室、１８……ノズ
ルホルダ、１９……燃料噴射ノズル、２１……ス
ペーサ、２５……高圧燃料通路、２８……高圧燃
料通路貫通部、３０……弁体、３１……吐出弁、
３２，３２′……弁座、３６……支持部材。
FIG. 1 is a front sectional view showing the configuration of the discharge valve part in an embodiment of the fuel injection device according to the present invention, and FIG.
The figure is a side view of the discharge valve part seen from the right side.
The figure is a front sectional view showing another configuration of the discharge valve part.
The figure is a front sectional view showing the configuration of the entire fuel injection device. 1...Casing, 3...Plunger barrel,
5... Plunger, 6... High pressure chamber, 18... Nozzle holder, 19... Fuel injection nozzle, 21... Spacer, 25... High pressure fuel passage, 28... High pressure fuel passage penetration part, 30... Valve body , 31...discharge valve,
32, 32'... Valve seat, 36... Support member.
Claims (1)
通路を通して燃料噴射ノズルに与える内燃機関の
燃料噴射装置において、燃料噴射ノズルとノズル
ホルダとの間に高圧燃料通路が貫通するスペーサ
を設け、そのスペーサの高圧燃料通路貫通部分に
噴射ポンプから供給される燃料の圧力によつて弁
座を開放し、供給燃料のカツトオフ時に高圧燃料
通路と燃料噴射ノズルとの間の圧力差によつて弁
座を閉成するボール状の弁体からなる吐出弁を設
けたことを特徴とする燃料噴射装置。 In a fuel injection device for an internal combustion engine that supplies fuel pressurized by an injection pump to a fuel injection nozzle through a high-pressure fuel passage, a spacer through which the high-pressure fuel passage passes is provided between the fuel injection nozzle and a nozzle holder, and the spacer The valve seat is opened by the pressure of the fuel supplied from the injection pump to the high-pressure fuel passage penetrating portion of the valve, and the valve seat is closed by the pressure difference between the high-pressure fuel passage and the fuel injection nozzle when the supplied fuel is cut off. 1. A fuel injection device comprising a discharge valve made of a ball-shaped valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18877986U JPS6393467U (en) | 1986-12-08 | 1986-12-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18877986U JPS6393467U (en) | 1986-12-08 | 1986-12-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6393467U true JPS6393467U (en) | 1988-06-16 |
Family
ID=31140460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18877986U Pending JPS6393467U (en) | 1986-12-08 | 1986-12-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6393467U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016153652A (en) * | 1999-02-09 | 2016-08-25 | 日立オートモティブシステムズ株式会社 | High-pressure fuel supply pump of internal combustion engine |
-
1986
- 1986-12-08 JP JP18877986U patent/JPS6393467U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016153652A (en) * | 1999-02-09 | 2016-08-25 | 日立オートモティブシステムズ株式会社 | High-pressure fuel supply pump of internal combustion engine |