JPH0254254U - - Google Patents
Info
- Publication number
- JPH0254254U JPH0254254U JP1988132784U JP13278488U JPH0254254U JP H0254254 U JPH0254254 U JP H0254254U JP 1988132784 U JP1988132784 U JP 1988132784U JP 13278488 U JP13278488 U JP 13278488U JP H0254254 U JPH0254254 U JP H0254254U
- Authority
- JP
- Japan
- Prior art keywords
- hollow sleeve
- piezoelectric element
- circumferential surface
- view
- cooling liquid
- 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
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第１図はアクチユエータの側面断面図、第２図
は第１図の―線に沿つてみた断面図、第３図
は中空スリーブの側面断面図、第４図は第５図の
―線に沿つてみたインジエクタの側面断面図
、第５図は第４図の―線に沿つてみた側面断
面図、第６図は第４図の平面図、第７図は第４図
の―線に沿つてみた断面図、第８図は第７図
の―線に沿つてみた断面図、第９図はデイー
ゼル機関を図解的に示した平面図、第１０図はデ
イーゼル機関の側面断面図、第１１図は第２の実
施例の燃料噴射弁の側面断面図、第１２図は第３
の実施例の燃料噴射弁の側面断面図である。
３１……アクチユエータハウジング、３２，１
１２，１２６……ピエゾ圧電素子、４８……冷却
液体流通溝、４９……冷却液体供給通路、５１…
…冷却液体排出通路、６５……中空スリーブ。
Fig. 1 is a side sectional view of the actuator, Fig. 2 is a sectional view taken along line - in Fig. 1, Fig. 3 is a side sectional view of the hollow sleeve, and Fig. 4 is a sectional view taken along line - in Fig. 5. Figure 5 is a side sectional view taken along the - line in Figure 4, Figure 6 is a plan view of Figure 4, and Figure 7 is a side sectional view taken along the line - in Figure 4. 8 is a sectional view taken along the line - in FIG. 7, FIG. 9 is a plan view schematically showing the diesel engine, FIG. 10 is a side sectional view of the diesel engine, and FIG. 11 12 is a side sectional view of the fuel injection valve of the second embodiment, and FIG.
It is a side sectional view of the fuel injection valve of the Example. 31...actuator housing, 32,1
12, 126...Piezoelectric element, 48...Cooling liquid distribution groove, 49...Cooling liquid supply passage, 51...
...Cooling liquid discharge passage, 65...Hollow sleeve.
Claims (1)
ると共に前記圧電素子の外周面と前記中空スリー
ブの内周面との間に冷却液体通路を形成し、前記
中空スリーブを低熱伝導率材料で形成した圧電素
子アクチユエータ。 A piezoelectric element is provided in which a piezoelectric element is arranged in a hollow sleeve so as to be expandable and contractible, a cooling liquid passage is formed between an outer circumferential surface of the piezoelectric element and an inner circumferential surface of the hollow sleeve, and the hollow sleeve is made of a material with low thermal conductivity. Element actuator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988132784U JPH0254254U (en) | 1988-10-13 | 1988-10-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988132784U JPH0254254U (en) | 1988-10-13 | 1988-10-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0254254U true JPH0254254U (en) | 1990-04-19 |
Family
ID=31390066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988132784U Pending JPH0254254U (en) | 1988-10-13 | 1988-10-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0254254U (en) |
-
1988
- 1988-10-13 JP JP1988132784U patent/JPH0254254U/ja active Pending