JPS61119738U - - Google Patents
Info
- Publication number
- JPS61119738U JPS61119738U JP351785U JP351785U JPS61119738U JP S61119738 U JPS61119738 U JP S61119738U JP 351785 U JP351785 U JP 351785U JP 351785 U JP351785 U JP 351785U JP S61119738 U JPS61119738 U JP S61119738U
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- cylinder head
- pressure sensor
- receiving plate
- spark plug
- 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
- 230000037431 insertion Effects 0.000 claims description 2
- 238000003780 insertion Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims 2
- 238000002485 combustion reaction Methods 0.000 claims 1
Landscapes
- Measuring Fluid Pressure (AREA)
Description
第１図Ａ〜第１図Ｃはこの考案の一実施例の座
金型圧力センサで、第１図Ａは平面図、第１図Ｂ
は断面図、第１図Ｃは側面図を示す。第２図はこ
の圧力センサの取り付け状態を示すシリンダヘツ
ド部の断面図、第３図は第２図のＡ―Ａ線断面図
である。第４図は従来例の圧力センサの組み立て
を示す斜視図、第５図は同じく圧力センサの軸方
向一部断面図、第６図，第７図は同じく圧力セン
サの平面図、正面図、第８図は同じく圧力センサ
の取り付け状態を示すシリンダヘツド部の断面図
である。
１……圧力センサ、２……出力端子、６，７…
…圧電素子、８……電極板、１４……点火栓挿入
孔、１５……点火栓側受圧板、１６……回り止め
部、１７……出力端子用孔、１８……かしめ部、
２０……シリンダヘツド側受圧板、２１……絶縁
性固着材、２２……案内溝。
Figures 1A to 1C show a washer-type pressure sensor according to an embodiment of this invention, with Figure 1A being a plan view and Figure 1B being a top view.
1C shows a cross-sectional view, and FIG. 1C shows a side view. FIG. 2 is a cross-sectional view of the cylinder head showing the state in which this pressure sensor is attached, and FIG. 3 is a cross-sectional view taken along the line AA in FIG. FIG. 4 is a perspective view showing the assembly of a conventional pressure sensor, FIG. 5 is a partially axial sectional view of the pressure sensor, and FIGS. 6 and 7 are a plan view, front view, and a front view of the pressure sensor. FIG. 8 is a sectional view of the cylinder head section showing the state in which the pressure sensor is attached. 1...Pressure sensor, 2...Output terminal, 6,7...
... Piezoelectric element, 8 ... Electrode plate, 14 ... Spark plug insertion hole, 15 ... Spark plug side pressure receiving plate, 16 ... Rotation stopper, 17 ... Output terminal hole, 18 ... Caulking part,
20... Cylinder head side pressure receiving plate, 21... Insulating fixing material, 22... Guide groove.
Claims (1)
面とシリンダヘツド面との間に、圧電素子とこの
圧電素子を外側から挾持する受圧板とを積層して
構成した座金型の圧力センサを挾み込み、この圧
力センサによりシリンダ内圧を測定するようにし
た内燃機関の圧力検出装置において、シリンダヘ
ツドの点火栓挿入孔の内周に案内溝を形成し、こ
の案内溝に嵌合する回り止め部を前記点火栓側の
受圧板の外周に突設したことを特徴とする圧力検
出装置。 A washer-type pressure sensor consisting of a stacked piezoelectric element and a pressure-receiving plate that clamps the piezoelectric element from the outside is sandwiched between the mounting seat surface of the ignition plug that is screwed into the cylinder head and the cylinder head surface. In a pressure detection device for an internal combustion engine that measures cylinder internal pressure using this pressure sensor, a guide groove is formed on the inner periphery of the spark plug insertion hole of the cylinder head, and a rotation stopper that fits into the guide groove is arranged as described above. A pressure detection device characterized by being provided protruding from the outer periphery of a pressure receiving plate on the spark plug side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP351785U JPS61119738U (en) | 1985-01-14 | 1985-01-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP351785U JPS61119738U (en) | 1985-01-14 | 1985-01-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61119738U true JPS61119738U (en) | 1986-07-28 |
Family
ID=30478216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP351785U Pending JPS61119738U (en) | 1985-01-14 | 1985-01-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61119738U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002243569A (en) * | 2001-02-14 | 2002-08-28 | Ngk Spark Plug Co Ltd | Pressure sensor unit |
-
1985
- 1985-01-14 JP JP351785U patent/JPS61119738U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002243569A (en) * | 2001-02-14 | 2002-08-28 | Ngk Spark Plug Co Ltd | Pressure sensor unit |
| JP4522597B2 (en) * | 2001-02-14 | 2010-08-11 | 日本特殊陶業株式会社 | Pressure sensor unit |
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