JPS6317432U - - Google Patents
Info
- Publication number
- JPS6317432U JPS6317432U JP10803486U JP10803486U JPS6317432U JP S6317432 U JPS6317432 U JP S6317432U JP 10803486 U JP10803486 U JP 10803486U JP 10803486 U JP10803486 U JP 10803486U JP S6317432 U JPS6317432 U JP S6317432U
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- insulating tube
- electrode plate
- outside
- ring
- 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
- 239000000565 sealant Substances 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 claims 1
- 238000009413 insulation Methods 0.000 description 1
Landscapes
- Measuring Fluid Pressure (AREA)
Description
第１図は本考案の一実施例を示す筒内圧センサ
の外部ケーブルとの接続部の断面図、第２図は同
上のパイプ及び絶縁チユーブの斜視図、第３図は
他の実施例を示すパイプ及び絶縁チユーブの斜視
図、第４図は従来例を示す筒内圧センサ全体の断
面図、第５図は従来例における筒内圧センサの外
部ケーブルとの接続部の断面図、第６図は従来の
問題点を示す断面図である。
１…ケース、２…中心電極板、３…圧電素子、
４…接地電極板、６…パイプ、７…接続片、８…
第１の絶縁チユーブ、９…外部ケーブル、１０…
芯線、１１…第２の絶縁チユーブ、１４…シール
剤、２１，２２…逃がし穴、３１，３２…スリツ
ト。
Fig. 1 is a sectional view of the connection part of an in-cylinder pressure sensor with an external cable showing one embodiment of the present invention, Fig. 2 is a perspective view of the same pipe and insulating tube, and Fig. 3 shows another embodiment. A perspective view of a pipe and an insulating tube, FIG. 4 is a sectional view of the entire cylinder pressure sensor showing a conventional example, FIG. FIG. 1... Case, 2... Center electrode plate, 3... Piezoelectric element,
4... Ground electrode plate, 6... Pipe, 7... Connection piece, 8...
First insulation tube, 9... External cable, 10...
Core wire, 11...Second insulating tube, 14...Sealant, 21, 22...Escape hole, 31, 32...Slit.
Claims (1)
環状の導電性ケース内に、環状の中心電極板を挾
んで一対の圧電素子を配し、さらに各圧電素子の
外側にそれぞれ環状の接地電極板を配してなり、
また、ケースの外周の一部にパイプを固着し、中
心電極板に連なる接続片を第１の絶縁チユーブを
被せてパイプ内に通しパイプの端部から突出させ
、この突出部に外部ケーブルの芯線を接続し、こ
の接続部を一部がパイプ内に挿入される第２の絶
縁チユーブで包覆してなり、更に、ケース及びパ
イプ内の隙間にシール剤を充填してなる筒内圧セ
ンサにおいて、前記パイプの端部付近にその内外
を連通する逃がし部を形成すると共に、前記第２
の絶縁チユーブのほぼ対応する位置にその内外を
連通する逃がし部を形成したことを特徴とする筒
内圧センサ。 A pair of piezoelectric elements are placed between a ring-shaped center electrode plate in a hollow ring-shaped conductive case that is formed as a washer for an ignition plug in an internal combustion engine, and a ring-shaped ground electrode plate is placed on the outside of each piezoelectric element. Arranged,
In addition, a pipe is fixed to a part of the outer periphery of the case, and a connecting piece connected to the center electrode plate is covered with a first insulating tube and passed through the pipe to protrude from the end of the pipe, and the core wire of the external cable is attached to this protruding part. an in-cylinder pressure sensor in which a part of the connecting part is covered with a second insulating tube inserted into the pipe, and a gap between the case and the pipe is filled with a sealant, A relief portion communicating between the inside and outside of the pipe is formed near the end of the pipe, and the second
An in-cylinder pressure sensor characterized in that a relief part is formed at a position substantially corresponding to the insulating tube to communicate between the inside and outside of the insulating tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10803486U JPS6317432U (en) | 1986-07-16 | 1986-07-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10803486U JPS6317432U (en) | 1986-07-16 | 1986-07-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6317432U true JPS6317432U (en) | 1988-02-05 |
Family
ID=30984856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10803486U Pending JPS6317432U (en) | 1986-07-16 | 1986-07-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6317432U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4437286A1 (en) * | 1993-10-19 | 1995-04-20 | Unisia Jecs Corp | System for detecting the combustion state of an internal combustion engine |
| DE19521738A1 (en) * | 1994-06-14 | 1995-12-21 | Unisia Jecs Corp | Diagnostic device and diagnostic method for a cylinder pressure sensor |
-
1986
- 1986-07-16 JP JP10803486U patent/JPS6317432U/ja active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4437286A1 (en) * | 1993-10-19 | 1995-04-20 | Unisia Jecs Corp | System for detecting the combustion state of an internal combustion engine |
| US5604303A (en) * | 1993-10-19 | 1997-02-18 | Unisia Jecs Corporation | Combustion condition detecting system of internal combustion engine |
| DE19521738A1 (en) * | 1994-06-14 | 1995-12-21 | Unisia Jecs Corp | Diagnostic device and diagnostic method for a cylinder pressure sensor |
| US5554801A (en) * | 1994-06-14 | 1996-09-10 | Unisia Jecs Corporation | Diagnosis apparatus and method for a cylinder pressure sensor |