JPS59162637U - Internal combustion engine cylinder pressure detection device - Google Patents
Internal combustion engine cylinder pressure detection deviceInfo
- Publication number
- JPS59162637U JPS59162637U JP5714883U JP5714883U JPS59162637U JP S59162637 U JPS59162637 U JP S59162637U JP 5714883 U JP5714883 U JP 5714883U JP 5714883 U JP5714883 U JP 5714883U JP S59162637 U JPS59162637 U JP S59162637U
- Authority
- JP
- Japan
- Prior art keywords
- plug
- cylinder pressure
- combustion engine
- internal combustion
- detection device
- 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
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本案装置に用いる環状圧電部材の一態様を示し
、Ａは要部を断面とした平面図、Ｂは縦断正面図である
。第２図は前記圧電部材をシリンダヘッドのプラグ座承
面に取付けた態様を示す概略断面図である。−
Ｐ・・・・・・圧電部材、１１・・・・・・シリンダヘ
ッド、１１ａ・・・・・・プラグ座承面、１２・・・・
・・プラグ取付孔、１３・・・・・・点火プラグ、１３
ｂ・・・・・・点火プラグの座面。FIG. 1 shows one embodiment of the annular piezoelectric member used in the present device, in which A is a plan view of the main part in cross section, and B is a longitudinal front view. FIG. 2 is a schematic sectional view showing a mode in which the piezoelectric member is attached to the plug seating surface of the cylinder head. - P...Piezoelectric member, 11...Cylinder head, 11a...Plug bearing surface, 12...
...Plug mounting hole, 13...Spark plug, 13
b...Seating surface of the spark plug.
Claims (1)
付孔の上面を囲繞するプラグ座承面に凹部を形設し、該
凹部に環状圧電部材を嵌合固定し、前記プラグ取付孔に
点火プラグまたは予熱プラグを螺着したとき該プラグの
座面により前記圧電部材に所定の圧縮荷重を与えおき、
シリンダ内圧力の増加に伴って前記圧縮荷重が減少する
ことによって圧電部材から電気信号を生じる如く構成し
たことを特徴とする内燃機関のシリンダ内圧力検出装置
。A recess is formed in a plug seating surface surrounding the upper surface of at least one plug mounting hole provided in the cylinder head, an annular piezoelectric member is fitted and fixed in the recess, and a spark plug or preheating plug is inserted into the plug mounting hole. When the plug is screwed, a predetermined compressive load is applied to the piezoelectric member by the seat surface of the plug,
A cylinder pressure detection device for an internal combustion engine, characterized in that the piezoelectric member generates an electrical signal when the compression load decreases as the cylinder pressure increases.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5714883U JPS59162637U (en) | 1983-04-15 | 1983-04-15 | Internal combustion engine cylinder pressure detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5714883U JPS59162637U (en) | 1983-04-15 | 1983-04-15 | Internal combustion engine cylinder pressure detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59162637U true JPS59162637U (en) | 1984-10-31 |
| JPH0131941Y2 JPH0131941Y2 (en) | 1989-10-02 |
Family
ID=30187458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5714883U Granted JPS59162637U (en) | 1983-04-15 | 1983-04-15 | Internal combustion engine cylinder pressure detection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59162637U (en) |
-
1983
- 1983-04-15 JP JP5714883U patent/JPS59162637U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0131941Y2 (en) | 1989-10-02 |
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