JPH0240971U - - Google Patents
Info
- Publication number
- JPH0240971U JPH0240971U JP11883488U JP11883488U JPH0240971U JP H0240971 U JPH0240971 U JP H0240971U JP 11883488 U JP11883488 U JP 11883488U JP 11883488 U JP11883488 U JP 11883488U JP H0240971 U JPH0240971 U JP H0240971U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- spring
- pipe material
- fuel injection
- combustion engine
- 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 6
- 239000007924 injection Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第１図は本考案の一実施例を示す燃料噴射弁断
面図、第２図は第１図示の燃料噴射弁における中
空パイプ材の上流側先端部を示す拡大断面図、第
３図は従来の燃料噴射弁を示す断面図、第４図は
第３図示の燃料噴射弁が組込まれた燃料供給系を
示すシステム概略図、第５図は調整ピンによるス
プリングのセツト荷重調整状態を示す噴射弁基端
部の断面図、第６図は従来の問題点を説明するた
めの中空パイプ材の上流側先端部の拡大断面図で
ある。
１……ニードルパイプ、２……ノズルボデイ、
４……電磁コイル、５……鉄心、６……燃料ポー
ト、７……スプリング、８……アンカー、１２…
…中空パイプ材、１２ａ……中空部、１４……コ
ネクタ部、１５……貫通孔。
Fig. 1 is a sectional view of a fuel injection valve showing an embodiment of the present invention, Fig. 2 is an enlarged sectional view showing the upstream end of the hollow pipe material in the fuel injection valve shown in Fig. 1, and Fig. 3 is a sectional view of a conventional fuel injection valve. FIG. 4 is a system schematic diagram showing a fuel supply system incorporating the fuel injection valve shown in FIG. 3. FIG. FIG. 6 is an enlarged sectional view of the upstream end of the hollow pipe material for explaining the conventional problems. 1... Needle pipe, 2... Nozzle body,
4... Electromagnetic coil, 5... Iron core, 6... Fuel port, 7... Spring, 8... Anchor, 12...
...Hollow pipe material, 12a...Hollow part, 14...Connector part, 15...Through hole.
Claims (1)
る弁体と、電磁コイルで励磁されることにより前
記弁体を吸引して開弁させる鉄心と、燃料供給経
路を構成する中空部が軸方向に貫通延設されると
共に、下流側端部に前記スプリングの固定側端部
が当接し該スプリングの閉弁付勢力がその軸方向
固定位置によつて可変するパイプ材と、を備える
一方、前記パイプ材の上流側端部が該パイプ材の
外径よりも大である内径に形成されたコネクタ部
内に突出して配設され、該コネクタ部内に供給さ
れた燃料が前記パイプ材の中空部を介して噴射さ
れるよう構成された内燃機関用電磁式燃料噴射弁
において、前記パイプ材の前記コネクタ部内に突
出する上流側端部の周壁に内外空間を連通する貫
通孔を形成し、該貫通孔を介してパイプ材の中空
部と前記コネクタ部内とが連通されるよう構成し
たことを特徴とする内燃機関用電磁式燃料噴射弁
。 A valve element that is elastically biased by a spring and seats on a valve seat, an iron core that attracts the valve element to open the valve by being excited by an electromagnetic coil, and a hollow part that constitutes a fuel supply path penetrate in the axial direction. a pipe member that extends and has a fixed end portion of the spring in contact with a downstream end portion thereof, and a valve closing biasing force of the spring is variable depending on the fixed position in the axial direction; The upstream end of the pipe member is disposed so as to protrude into a connector portion formed with an inner diameter larger than the outer diameter of the pipe material, and the fuel supplied into the connector portion is injected through the hollow portion of the pipe material. In the electromagnetic fuel injection valve for an internal combustion engine configured to be An electromagnetic fuel injection valve for an internal combustion engine, characterized in that the hollow part of the pipe material and the inside of the connector part are configured to communicate with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11883488U JPH051652Y2 (en) | 1988-09-12 | 1988-09-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11883488U JPH051652Y2 (en) | 1988-09-12 | 1988-09-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0240971U true JPH0240971U (en) | 1990-03-20 |
| JPH051652Y2 JPH051652Y2 (en) | 1993-01-18 |
Family
ID=31363529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11883488U Expired - Lifetime JPH051652Y2 (en) | 1988-09-12 | 1988-09-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH051652Y2 (en) |
-
1988
- 1988-09-12 JP JP11883488U patent/JPH051652Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH051652Y2 (en) | 1993-01-18 |
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