JPH048456U - - Google Patents
Info
- Publication number
- JPH048456U JPH048456U JP1990049082U JP4908290U JPH048456U JP H048456 U JPH048456 U JP H048456U JP 1990049082 U JP1990049082 U JP 1990049082U JP 4908290 U JP4908290 U JP 4908290U JP H048456 U JPH048456 U JP H048456U
- Authority
- JP
- Japan
- Prior art keywords
- inner cylinder
- piezoelectric element
- outer cylinder
- cylinder
- actuator
- 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
- 238000010586 diagram Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第１図は燃料噴射弁の側面断面図、第２図は振
動騒音を低減する方法を説明するための図である
。
８……ケーシング、９……ピエゾ圧電素子、１
０……保持スリーブ、１１……ケーシングホルダ
、１２……ゴムキヤツプ、１３……ピストン。
FIG. 1 is a side sectional view of a fuel injection valve, and FIG. 2 is a diagram for explaining a method of reducing vibration noise. 8...Casing, 9...Piezoelectric element, 1
0...Holding sleeve, 11...Casing holder, 12...Rubber cap, 13...Piston.
Claims (1)
において、該圧電素子を包囲するケーシングを内
筒と外筒とにより構成し、該内筒と外筒の軸方向
一端部をアクチユエータハウジングに固定配置す
ると共に該内筒と外筒の軸方向他端部を一緒に移
動するように結合させ、該内筒の軸方向他端部に
より圧電素子の軸方向端部を支承して圧電素子が
伸長したときに内筒および外筒が同時に伸長する
ようにしたアクチユエータ。 In an actuator using a piezoelectric element as a drive source, a casing surrounding the piezoelectric element is composed of an inner cylinder and an outer cylinder, one end of the inner cylinder and the outer cylinder in the axial direction is fixed to the actuator housing, and The other axial ends of the inner cylinder and the outer cylinder are coupled so that they move together, and the other axial end of the inner cylinder supports the axial end of the piezoelectric element, so that when the piezoelectric element is expanded. An actuator whose inner cylinder and outer cylinder extend simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990049082U JPH048456U (en) | 1990-05-14 | 1990-05-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990049082U JPH048456U (en) | 1990-05-14 | 1990-05-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH048456U true JPH048456U (en) | 1992-01-27 |
Family
ID=31566470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990049082U Pending JPH048456U (en) | 1990-05-14 | 1990-05-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH048456U (en) |
-
1990
- 1990-05-14 JP JP1990049082U patent/JPH048456U/ja active Pending