JPS6422870U - - Google Patents
Info
- Publication number
- JPS6422870U JPS6422870U JP9369588U JP9369588U JPS6422870U JP S6422870 U JPS6422870 U JP S6422870U JP 9369588 U JP9369588 U JP 9369588U JP 9369588 U JP9369588 U JP 9369588U JP S6422870 U JPS6422870 U JP S6422870U
- Authority
- JP
- Japan
- Prior art keywords
- needle valve
- injection
- piezoelectric element
- spring
- mounting hole
- 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.)
- Granted
Links
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 239000000446 fuel Substances 0.000 claims description 4
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 2
- 238000009795 derivation Methods 0.000 claims 1
- 238000001514 detection method Methods 0.000 claims 1
- 238000000605 extraction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
添付図面は本考案の実施例を示し、第１図は、
燃料噴射装置の縦断側面図、第２図はバネ座２０
の縦断側面図である。また第３図は従来装置との
応答対応図であつて、第３図イは針弁１５の動き
を示し、第３図ロは本考案装置の出力信号時期を
示し、第３図ハは従来装置の出力信号時期を示す
。
１５……針弁、１７……バネ、２０……バネ座
、２４……装着孔、２６……圧電素子、２８……
質量体、３０……リード線。
The accompanying drawings show embodiments of the invention, and FIG.
Vertical side view of the fuel injection device, Figure 2 shows the spring seat 20
FIG. FIG. 3 is a response correspondence diagram with the conventional device, in which FIG. 3A shows the movement of the needle valve 15, FIG. 3B shows the output signal timing of the device of the present invention, and FIG. Indicates the output signal timing of the device. 15... Needle valve, 17... Spring, 20... Spring seat, 24... Mounting hole, 26... Piezoelectric element, 28...
Mass body, 30...Lead wire.
Claims (1)
針弁上に付装したバネの弾発作用で噴射口を閉鎖
し、燃料圧力の上昇に伴なつて前記針弁をバネに
抗して移動して間欠的に噴射口を開放するデイー
ゼルエンジンの燃料噴射装置において、 針弁に取付けたバネ座内に装着孔を設け、該装
着孔内に、圧電素子と、針弁の昇降に伴なつて、
慣性荷重により圧電素子に圧縮歪を与える質量体
とを、針弁の移動方向に重ね合わせ状に配設する
と共に、該圧電素子の電極に接続した信号取出し
用リード線を、噴射筐の外部に導出したことを特
徴とするデイーゼルエンジンの燃料噴射検知装置
。[Scope of Claim for Utility Model Registration] A needle valve slidably mounted in the injection casing closes the injection port by the force of a spring attached to the needle valve, and as the fuel pressure increases. In a diesel engine fuel injection device in which the needle valve is moved against a spring to intermittently open an injection port, a mounting hole is provided in a spring seat attached to the needle valve, and a piezoelectric element is inserted into the mounting hole. As the needle valve moves up and down,
A mass body that applies compressive strain to the piezoelectric element due to an inertial load is arranged in an overlapping manner in the moving direction of the needle valve, and a lead wire for signal extraction connected to the electrode of the piezoelectric element is connected to the outside of the injection housing. A fuel injection detection device for a diesel engine, which is characterized by its derivation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9369588U JPH0310381Y2 (en) | 1988-07-15 | 1988-07-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9369588U JPH0310381Y2 (en) | 1988-07-15 | 1988-07-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6422870U true JPS6422870U (en) | 1989-02-07 |
| JPH0310381Y2 JPH0310381Y2 (en) | 1991-03-14 |
Family
ID=31318166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9369588U Expired JPH0310381Y2 (en) | 1988-07-15 | 1988-07-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0310381Y2 (en) |
-
1988
- 1988-07-15 JP JP9369588U patent/JPH0310381Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0310381Y2 (en) | 1991-03-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6422870U (en) | ||
| JPS5913668U (en) | Diesel engine fuel injection detection device | |
| JPH0199967U (en) | ||
| JPH0448478U (en) | ||
| JPS6456569U (en) | ||
| JPS6378235U (en) | ||
| JPS6378234U (en) | ||
| JPH0220783U (en) | ||
| JPS61160238U (en) | ||
| JPS63122247U (en) | ||
| JPS5833774U (en) | Diesel engine fuel injection timing detection device | |
| JPS58175167U (en) | fuel injection valve | |
| JPS61134567U (en) | ||
| JPS6015963U (en) | liquid fuel supply device | |
| JPS60164673U (en) | Fuel injection amount detection device | |
| JPH02118143U (en) | ||
| JPS6378238U (en) | ||
| JPS5886480U (en) | Knock control device | |
| JPH02125864U (en) | ||
| JPS59130039U (en) | Injection timing control device for distributed fuel injection pump for diesel engine | |
| JPS5835672U (en) | Measuring device for diesel engine injection valves | |
| JPS58191379U (en) | Diesel engine injection timing detection device | |
| JPS6378237U (en) | ||
| JPS61167473U (en) | ||
| JPS60185058U (en) | Fuel injection timing detection device |