JPS6319065U - - Google Patents
Info
- Publication number
- JPS6319065U JPS6319065U JP11201786U JP11201786U JPS6319065U JP S6319065 U JPS6319065 U JP S6319065U JP 11201786 U JP11201786 U JP 11201786U JP 11201786 U JP11201786 U JP 11201786U JP S6319065 U JPS6319065 U JP S6319065U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- housing
- piezoelectric body
- holder
- fuel injection
- 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
- 125000006850 spacer group Chemical group 0.000 claims description 2
- 239000000446 fuel Substances 0.000 claims 2
- 238000002347 injection Methods 0.000 claims 2
- 239000007924 injection Substances 0.000 claims 2
- 238000006073 displacement reaction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 238000003475 lamination 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断面図、第２
図は従来例の断面図、第３図は縦効果圧電体の動
作説明図、第４図は縦効果圧電体の積層状態図、
第５図は同上積層圧電体の伸びと印加電圧との関
係を示す図である。
１１……積層圧電体、１２……ハウジング、１
３……弁体、１３ａ……基端部、１４……弁ホル
ダ、１５……スペーサ、１６……ノツクピン、１
７……リターンスプリング。
Fig. 1 is a sectional view showing one embodiment of the present invention;
The figure is a cross-sectional view of the conventional example, Figure 3 is an explanatory diagram of the operation of the longitudinal effect piezoelectric body, and Figure 4 is a diagram of the lamination state of the longitudinal effect piezoelectric body.
FIG. 5 is a diagram showing the relationship between the elongation of the laminated piezoelectric material and the applied voltage. 11...Laminated piezoelectric body, 12...Housing, 1
3... Valve body, 13a... Base end, 14... Valve holder, 15... Spacer, 16... Knock pin, 1
7...Return spring.
Claims (1)
スプリングで常時閉弁方向に弾性付勢される弁体
とを備え、圧電体の変位力により当該圧電体で弁
体基端を押圧し開弁させる構成の燃料噴射弁にお
いて、前記圧電体を収納するハウジングと、前記
弁体を摺動保持する弁ホルダとを別体に成形する
と共に、前記ハウジングと弁ホルダとの間に、圧
電体と弁体基端との間のクリアランスを調節する
ためのスペーサを介在させてハウジングと弁ホル
ダとを一体化する構成としたことを特徴とする燃
料噴射弁。 Equipped with a piezoelectric body that is displaced according to the applied voltage and a valve body that is normally elastically biased in the valve closing direction by a return spring, the piezoelectric body presses the base end of the valve body with the displacement force of the piezoelectric body to open the valve. In this fuel injection valve, a housing that accommodates the piezoelectric body and a valve holder that slides and holds the valve body are molded separately, and the piezoelectric body and the valve body are disposed between the housing and the valve holder. A fuel injection valve characterized in that a housing and a valve holder are integrated with each other with a spacer interposed therebetween to adjust the clearance between the housing and the valve holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11201786U JPS6319065U (en) | 1986-07-23 | 1986-07-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11201786U JPS6319065U (en) | 1986-07-23 | 1986-07-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6319065U true JPS6319065U (en) | 1988-02-08 |
Family
ID=30992490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11201786U Pending JPS6319065U (en) | 1986-07-23 | 1986-07-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6319065U (en) |
-
1986
- 1986-07-23 JP JP11201786U patent/JPS6319065U/ja active Pending