JPS63112268U - - Google Patents
Info
- Publication number
- JPS63112268U JPS63112268U JP446787U JP446787U JPS63112268U JP S63112268 U JPS63112268 U JP S63112268U JP 446787 U JP446787 U JP 446787U JP 446787 U JP446787 U JP 446787U JP S63112268 U JPS63112268 U JP S63112268U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- nozzle holder
- seat member
- seat
- 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.)
- Pending
Links
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 239000000446 fuel Substances 0.000 claims 2
- 230000002093 peripheral effect Effects 0.000 claims 2
- 238000000926 separation method Methods 0.000 claims 1
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第１図は本考案の実施例を示すノズルホルダの
半断面図、第２図および第３図は従来技術を示し
、第２図はインジエクタの縦断面図、第３図は第
２図中に示すノズルホルダの半断面図である。
１……インジエクタ本体、４……シート部材、
４Ａ……弁座、５……噴射ノズル、６……弁体、
１３……弁ばね、１４……ソレノイド、１５……
押付け治具、２１……ノズルホルダ、２１Ａ……
大径部、２１Ｂ……大径段部、２１Ｃ……中間部
、２１Ｄ……小径段部、２１Ｅ……小径部、ａ′
，ｂ′……肉厚、ｃ′……径方向寸法。
Fig. 1 is a half sectional view of a nozzle holder showing an embodiment of the present invention, Figs. 2 and 3 show the prior art, Fig. 2 is a longitudinal sectional view of an injector, and Fig. It is a half sectional view of the nozzle holder shown. 1... Injector main body, 4... Sheet member,
4A...valve seat, 5...injection nozzle, 6...valve body,
13... Valve spring, 14... Solenoid, 15...
Pressing jig, 21... Nozzle holder, 21A...
Large diameter part, 21B...Large diameter step part, 21C...Intermediate part, 21D...Small diameter step part, 21E...Small diameter part, a'
, b'... Wall thickness, c'... Radial dimension.
Claims (1)
大径部、中間部および小径部を有して段付筒状に
形成され、大径部が該インジエクタ本体の先端側
に固定されたノズルホルダと、該ノズルホルダの
小径部内周側に固着され、背面側に弁座が形成さ
れたシート部材と、該シート部材の内周側に設け
られた噴射ノズルと、該噴射ノズルを開閉すべく
、前記シート部材の弁座に離着座する弁体と、該
弁体を閉弁方向に常時付勢する弁ばねと、該弁ば
ねに抗して弁体を開弁すべく、前記インジエクタ
本体内に設けられた電磁アクチユエータとからな
るフユーエルインジエクタにおいて、前記電磁ア
クチユエータにより弁体を開弁させた状態で、前
記シート部材を外部から軸方向に押圧して、該シ
ート部材の弁座と弁体との離間寸法を調整すべく
、前記ノズルホルダの中間部の肉厚を薄くし、該
中間部と小径部との間の径方向寸法を長くして、
該ノズルホルダの剛性を下げ、軸方向に変形可能
としたことを特徴とするフユーエルインジエクタ
。 an injector body; a nozzle holder formed into a stepped cylinder shape having a large diameter part, an intermediate part, and a small diameter part extending in a cylindrical shape in the axial direction, and the large diameter part being fixed to the distal end side of the injector body; , a seat member fixed to the inner peripheral side of the small diameter portion of the nozzle holder and having a valve seat formed on the back side; an injection nozzle provided on the inner peripheral side of the seat member; A valve element that is seated on and off the valve seat of the seat member, a valve spring that constantly biases the valve element in the valve closing direction, and a valve element provided in the injector main body to open the valve element against the valve spring. In the fuel injector, the seat member is pressed in the axial direction from the outside while the valve body is opened by the electromagnetic actuator, and the valve seat of the seat member and the valve body are connected. In order to adjust the separation dimension of the nozzle holder, the thickness of the middle part of the nozzle holder is made thinner, and the radial dimension between the middle part and the small diameter part is made longer,
A fuel injector characterized in that the nozzle holder has reduced rigidity and is deformable in the axial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP446787U JPS63112268U (en) | 1987-01-16 | 1987-01-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP446787U JPS63112268U (en) | 1987-01-16 | 1987-01-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63112268U true JPS63112268U (en) | 1988-07-19 |
Family
ID=30785156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP446787U Pending JPS63112268U (en) | 1987-01-16 | 1987-01-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63112268U (en) |
-
1987
- 1987-01-16 JP JP446787U patent/JPS63112268U/ja active Pending