JPH0222664U - - Google Patents
Info
- Publication number
- JPH0222664U JPH0222664U JP10036888U JP10036888U JPH0222664U JP H0222664 U JPH0222664 U JP H0222664U JP 10036888 U JP10036888 U JP 10036888U JP 10036888 U JP10036888 U JP 10036888U JP H0222664 U JPH0222664 U JP H0222664U
- Authority
- JP
- Japan
- Prior art keywords
- valve seat
- valve body
- injector
- internal combustion
- piezoelectric element
- 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
- 238000002485 combustion reaction Methods 0.000 claims description 7
- 239000000446 fuel Substances 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第１図〜第７図は本考案の圧電素子を用いた内
燃機関用インジエクタの実施例を示し、第１図は
その一実施例のインジエクタを示す全体構成図、
第２図は弁体の平面図、第３図〜第５図は本考案
の作動を説明するための模式断面図、第６図及び
第７図はそれぞれ本考案の他の実施例を示す図で
ある。第８図は従来の電磁ソレノイドを用いた内
燃機関用インジエクタを示す図である。
１……ハウジング、４……燃料通路、５……弁
座、６……弁体、７……ばね体、８……圧力素子
。
1 to 7 show an embodiment of an injector for an internal combustion engine using a piezoelectric element of the present invention, and FIG. 1 is an overall configuration diagram showing an injector of one embodiment,
FIG. 2 is a plan view of the valve body, FIGS. 3 to 5 are schematic sectional views for explaining the operation of the present invention, and FIGS. 6 and 7 are views showing other embodiments of the present invention, respectively. It is. FIG. 8 is a diagram showing an injector for an internal combustion engine using a conventional electromagnetic solenoid. DESCRIPTION OF SYMBOLS 1... Housing, 4... Fuel passage, 5... Valve seat, 6... Valve body, 7... Spring body, 8... Pressure element.
Claims (1)
通路の途中に前記ハウジングと一体に設けられた
弁座と、前記ハウジング内に収納され前記弁座を
その側面部で当接する板状の圧電素子からなる弁
体と、該板状弁体を前記弁座に常時押圧するばね
体とからなり、前記弁体には前記弁座の近傍まで
燃料を供給するための通路手段を設けるとともに
、前記圧電素子に通電される電流の断続により弁
体の開閉を行うようにした、ことを特徴とする内
燃機関用インジエクタ。 (2) 前記弁座の周囲のハウジング面は、非作動
状態において前記弁体との間に微小隙間を有する
請求項１に記載の内燃機関用インジエクタ。 (3) 前記板状の圧電素子はバイモルフ又はユニ
モルフである請求項１または２に記載の内燃機関
用インジエクタ。 (4) 前記通路手段は前記弁体の弁座当接部より
も半径方向外方に板状の圧電素子を貫通して設け
られた燃料通路孔である請求項１ないし３のいず
れかに記載の内燃機関用インジエクタ。 (5) 前記通路手段は前記弁体の弁座側であつて
弁座当接部よりも半径方向外方に設けられた１以
上の切欠きである請求項１ないし３のいずれかに
記載の内燃機関用インジエクタ。[Claims for Utility Model Registration] (1) A housing having a fuel passage, a valve seat integrally provided with the housing in the middle of the fuel passage, and a valve seat housed in the housing and having the valve seat on its side surface. It consists of a valve body made of a plate-shaped piezoelectric element that comes into contact with it, and a spring body that constantly presses the plate-shaped valve body against the valve seat, and the valve body has a passage for supplying fuel to the vicinity of the valve seat. An injector for an internal combustion engine, characterized in that the valve body is opened and closed by intermittent current supplied to the piezoelectric element. (2) The injector for an internal combustion engine according to claim 1, wherein the housing surface around the valve seat has a minute gap between it and the valve body in a non-operating state. (3) The injector for an internal combustion engine according to claim 1 or 2, wherein the plate-shaped piezoelectric element is bimorph or unimorph. (4) The passage means is a fuel passage hole provided through a plate-shaped piezoelectric element radially outward from the valve seat abutting portion of the valve body. Injector for internal combustion engines. (5) The passage means is one or more notches provided on the valve seat side of the valve body and radially outward from the valve seat abutting portion. Injector for internal combustion engines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10036888U JPH0222664U (en) | 1988-07-28 | 1988-07-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10036888U JPH0222664U (en) | 1988-07-28 | 1988-07-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0222664U true JPH0222664U (en) | 1990-02-15 |
Family
ID=31328381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10036888U Pending JPH0222664U (en) | 1988-07-28 | 1988-07-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0222664U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05187955A (en) * | 1992-07-16 | 1993-07-27 | Sumitomo 3M Ltd | Water leakage detecting belt and manufacture thereof |
-
1988
- 1988-07-28 JP JP10036888U patent/JPH0222664U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05187955A (en) * | 1992-07-16 | 1993-07-27 | Sumitomo 3M Ltd | Water leakage detecting belt and manufacture thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0222664U (en) | ||
| JPS6049262U (en) | Diesel engine fuel injection valve | |
| JPS60190972U (en) | fuel injector | |
| JPH0240970U (en) | ||
| JPH0218622U (en) | ||
| JPH0317105U (en) | ||
| JPS616676U (en) | Diesel engine fuel injection nozzle | |
| JPH03129768U (en) | ||
| JPS62119571U (en) | ||
| JPS60194173U (en) | electromagnetic fuel injector | |
| JPS6345066U (en) | ||
| JPS60149872U (en) | Fuel injection nozzle for diesel engine | |
| JPS62169258U (en) | ||
| JPS63166670U (en) | ||
| JPS61202679U (en) | ||
| JPS59130067U (en) | internal combustion engine fuel injection valve | |
| JPH0430238U (en) | ||
| JPH0319456U (en) | ||
| JPS62116164U (en) | ||
| JPS6014278U (en) | fuel injection control device | |
| JPH01179171U (en) | ||
| JPH0395074U (en) | ||
| JPS59131570U (en) | distribution type fuel injection pump | |
| JPS6174668U (en) | ||
| JPH03102060U (en) |