JPH0180665U - - Google Patents
Info
- Publication number
- JPH0180665U JPH0180665U JP1987176616U JP17661687U JPH0180665U JP H0180665 U JPH0180665 U JP H0180665U JP 1987176616 U JP1987176616 U JP 1987176616U JP 17661687 U JP17661687 U JP 17661687U JP H0180665 U JPH0180665 U JP H0180665U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- needle
- housing
- valve housing
- annular recess
- 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)
Description
図面は本考案の一実施例を示すものであり、第
１図は縦断面図、第２図は第１図の―線拡大
断面図、第３図は第１図の―線拡大断面図で
ある。
４……燃料噴射弁、８……弁ハウジング、１２
……弁口、１３……弁座、１４……ニードル弁体
、１６……弁部、１７，１９……環状凹部、１８
……規制突部、２０……ガイド部、２２……流通
路、２３……切欠き部、２４……環状絞り。
The drawings show one embodiment of the present invention, and FIG. 1 is a longitudinal sectional view, FIG. 2 is an enlarged sectional view taken along the line - in FIG. 1, and FIG. 3 is an enlarged sectional view taken along the line - in FIG. be. 4...Fuel injection valve, 8...Valve housing, 12
... Valve port, 13 ... Valve seat, 14 ... Needle valve body, 16 ... Valve section, 17, 19 ... Annular recess, 18
...Regulation protrusion, 20...Guide portion, 22...Flow path, 23...Notch, 24...Annular throttle.
Claims (1)
とその弁口に連なる弁座とが形成され、該弁ハウ
ジングに軸方向移動可能に収納されるニードル弁
体には、前記弁座に着座可能な弁部と、該弁部か
ら離れて弁ハウジング内面に摺接するガイド部と
が設けられ、ガイド部の外周には、周方向に等間
隔をあけた複数位置で弁ハウジング内面との間に
流通路を形成すべく複数の切欠き部が設けられる
燃料噴射弁において、ニードル弁体には、弁部お
よびガイド部との間で前記流通路に連通する環状
凹部と、該環状凹部を挾んで前記切欠き部と対向
するとともに弁ハウジングとの間に環状絞りを形
成する規制突部とがそれぞれ形成されることを特
徴とする燃料噴射弁。 (2) ニードル弁体の規制突部およびガイド部間
、ならびに弁部および規制突部間に環状凹部がそ
れぞれ形成されることを特徴とする実用新案登録
請求の範囲第(1)項記載の燃料噴射弁。[Claims for Utility Model Registration] (1) A valve port and a valve seat connected to the valve port are formed at the tip of a cylindrical valve housing, and a needle is housed in the valve housing so as to be movable in the axial direction. The valve body is provided with a valve part that can be seated on the valve seat, and a guide part that is separated from the valve part and slides into contact with the inner surface of the valve housing. In a fuel injection valve in which a plurality of notches are provided at a plurality of positions to form a flow path between the inner surface of the valve housing and the needle valve body, the needle valve body includes a valve portion and a guide portion that communicate with the flow path. A fuel injection valve characterized in that an annular recess and a regulating protrusion that faces the notch across the annular recess and forms an annular throttle between the valve housing and the valve housing are formed. (2) The fuel according to claim (1) of the utility model registration, characterized in that an annular recess is formed between the regulating protrusion and the guide part of the needle valve body, and between the valve part and the regulating protrusion. injection valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17661687U JPH0543263Y2 (en) | 1987-11-19 | 1987-11-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17661687U JPH0543263Y2 (en) | 1987-11-19 | 1987-11-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0180665U true JPH0180665U (en) | 1989-05-30 |
| JPH0543263Y2 JPH0543263Y2 (en) | 1993-10-29 |
Family
ID=31468341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17661687U Expired - Lifetime JPH0543263Y2 (en) | 1987-11-19 | 1987-11-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0543263Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009103046A (en) * | 2007-10-23 | 2009-05-14 | Mitsubishi Electric Corp | Fuel injection valve for internal combustion engine |
| JP2013015139A (en) * | 2011-06-30 | 2013-01-24 | Robert Bosch Gmbh | Component of fuel injection system |
-
1987
- 1987-11-19 JP JP17661687U patent/JPH0543263Y2/ja not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009103046A (en) * | 2007-10-23 | 2009-05-14 | Mitsubishi Electric Corp | Fuel injection valve for internal combustion engine |
| JP2013015139A (en) * | 2011-06-30 | 2013-01-24 | Robert Bosch Gmbh | Component of fuel injection system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0543263Y2 (en) | 1993-10-29 |
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