JPH0213166U - - Google Patents
Info
- Publication number
- JPH0213166U JPH0213166U JP8793888U JP8793888U JPH0213166U JP H0213166 U JPH0213166 U JP H0213166U JP 8793888 U JP8793888 U JP 8793888U JP 8793888 U JP8793888 U JP 8793888U JP H0213166 U JPH0213166 U JP H0213166U
- Authority
- JP
- Japan
- Prior art keywords
- coil bobbin
- outer circumferential
- coil
- combustion engine
- internal combustion
- 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 4
- 238000002485 combustion reaction Methods 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 230000000630 rising effect Effects 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Fuel-Injection Apparatus (AREA)
- Insulating Of Coils (AREA)
Description
第１図は本考案の一実施例を示すコイルボビン
の断面図、第２図は内燃機関用燃料噴射弁の従来
例を示す全体断面図、第３図は同上従来例におけ
るコイルボビン構造を示す断面図である。
１２…電磁コイル、１３…コイルボビン、１３
ａ…外周凹陥部、１８…コーテイング剤、２１，
２７…立上がり壁面、２２…外周壁、２３…第１
段差部、２４…曲面、２５…第２段差部。
Fig. 1 is a sectional view of a coil bobbin showing an embodiment of the present invention, Fig. 2 is an overall sectional view showing a conventional example of a fuel injection valve for an internal combustion engine, and Fig. 3 is a sectional view showing a coil bobbin structure in the conventional example. It is. 12... Electromagnetic coil, 13... Coil bobbin, 13
a... Outer periphery recessed part, 18... Coating agent, 21,
27...Rising wall surface, 22...Outer peripheral wall, 23...First
Step portion, 24...Curved surface, 25...Second step portion.
Claims (1)
磁コイルによつて生じた電磁力で弁体の開弁動作
を行うと共に、前記コイルボビンの外周部を燃料
が通過するように構成された内燃機関用燃料噴射
弁において、 前記コイルボビンの外周凹陥部の立上がり壁面
の開放端を階段状に広げ、該階段状部とコイルボ
ビン外周壁とがなす角部をエツジとすると共に、
該階段状部と前記外周凹陥部の底部からの立上が
り壁面とがなす角部を曲面に形成する一方、コイ
ルボビンの外周壁と略面一となるように電磁コイ
ルが巻回された前記外周凹陥部に前記階段状部も
含めてコーテイング剤を充填したことを特徴とす
る内燃機関用燃料噴射弁のコイルボビン構造。[Claims for Utility Model Registration] The valve body is opened by an electromagnetic force generated by an electromagnetic coil wound around a concave portion on the outer periphery of a cylindrical coil bobbin, and fuel is caused to pass through the outer periphery of the coil bobbin. In the fuel injection valve for an internal combustion engine, the open end of the rising wall surface of the outer circumferential concave portion of the coil bobbin is widened in a step-like manner, and the corner formed by the stepped portion and the coil bobbin outer circumferential wall is formed as an edge.
A corner formed by the step-shaped portion and a wall surface rising from the bottom of the outer circumferential recessed portion is formed into a curved surface, and an electromagnetic coil is wound around the outer circumferential recessed portion so as to be substantially flush with the outer circumferential wall of the coil bobbin. A coil bobbin structure for a fuel injection valve for an internal combustion engine, characterized in that the coil bobbin including the stepped portion is filled with a coating agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8793888U JPH0213166U (en) | 1988-07-04 | 1988-07-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8793888U JPH0213166U (en) | 1988-07-04 | 1988-07-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0213166U true JPH0213166U (en) | 1990-01-26 |
Family
ID=31312526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8793888U Pending JPH0213166U (en) | 1988-07-04 | 1988-07-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0213166U (en) |
-
1988
- 1988-07-04 JP JP8793888U patent/JPH0213166U/ja active Pending