JPS5955880U - Spark plug with built-in pressure pick-up - Google Patents

Spark plug with built-in pressure pick-up

Info

Publication number
JPS5955880U
JPS5955880U JP15259982U JP15259982U JPS5955880U JP S5955880 U JPS5955880 U JP S5955880U JP 15259982 U JP15259982 U JP 15259982U JP 15259982 U JP15259982 U JP 15259982U JP S5955880 U JPS5955880 U JP S5955880U
Authority
JP
Japan
Prior art keywords
insulator
mounting
spark plug
piezoelectric element
screw
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
Application number
JP15259982U
Other languages
Japanese (ja)
Other versions
JPS6121818Y2 (en
Inventor
伸一 中村
沢本　国章
松村　修造
Original Assignee
日本特殊陶業株式会社
日産自動車株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 日本特殊陶業株式会社, 日産自動車株式会社 filed Critical 日本特殊陶業株式会社
Priority to JP15259982U priority Critical patent/JPS5955880U/en
Publication of JPS5955880U publication Critical patent/JPS5955880U/en
Application granted granted Critical
Publication of JPS6121818Y2 publication Critical patent/JPS6121818Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Measuring Fluid Pressure (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
  • Spark Plugs (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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案にかかる圧力ビックアップ内蔵式スパー
クプラグの断面図である。 図中、１・・・・・・取付金具、２・・・・・・取付ね
じ側部、３・・・・・・ボルト頭側部、４・・・・・・
絶縁体、５・・・・・・中心電極、６・・・・・・圧力
ビックアップ機構、７・・・・・・軟質金属製シール用
ワッシャ、４１・・・・・・絶縁体胴部。FIG. 1 is a sectional view of a spark plug with built-in pressure pickup according to the present invention. In the figure, 1...Mounting bracket, 2...Mounting screw side, 3...Bolt head side, 4...
Insulator, 5...Center electrode, 6...Pressure kick-up mechanism, 7...Soft metal sealing washer, 41...Insulator body .

Claims (1)

【実用新案登録請求の範囲】 中空ボルト状取付金具内に、中間胴部が段付で大径に形
成されるとともに軸心に沿って杆状中心電極か貫装され
た棒状セラミック製絶縁体を挿入し、前記絶縁体の胴部
後層と取付金具内周後端部に設けた係止用後段との間に
圧電素子を介在させてなり、取付金具先端に設けた外側
電極と前記中心電極先端部との間で火花放電間隙を形成
するとともに前記絶縁体に加わる機関燃焼室の圧力の軸
方向成分を前記圧電素子で電気信号に変換する圧力ビッ
クアップ内蔵式スパークプラグにおいて、前記取付金具
は、内周に前記絶縁体の胴部光層を係止する先膜が形成
され、先端側外周に機関への取付ねじが形成され、後端
側外周には締付ねじが形成された取付ねじ側部と、先端
側内周に前記取付ねじ側部の締付ねじと螺合する締付ね
じが形成され、後端がわ内周には前記係止用後段が形成
されたポルト頭側部とからなり、 前記取付金具の取付ねじ側部に形成″された先膜と前記
絶縁体の胴部光層との間に軟質で高融点を有する金属製
のシール用ワッシャを介在させ、前記取付ねじ側部とボ
ルト頭側部との螺着により前記圧電素子に予圧を付与す
ると同時に前記ワッシャを加圧し、さらに前記取付ねじ
側部とポルト頭側部との螺着部を溶接し、溶接に伴う収
縮により前記圧電素子および前記ワッシャを加圧してな
る圧力ビックアップ内蔵式スパークプラグ。[Scope of Claim for Utility Model Registration] A rod-shaped ceramic insulator with a stepped intermediate body formed with a large diameter and a rod-shaped center electrode inserted through the hollow bolt-shaped mounting bracket. A piezoelectric element is interposed between the body rear layer of the insulator and a locking rear stage provided at the rear end of the inner periphery of the mounting bracket, and the outer electrode provided at the tip of the mounting bracket and the center electrode tip. In the spark plug with a built-in pressure pickup, the spark plug forms a spark discharge gap between the insulator and converts an axial component of pressure in the engine combustion chamber applied to the insulator into an electrical signal by the piezoelectric element, A mounting screw side portion having a front film for locking the trunk light layer of the insulator formed on the periphery, a mounting screw for mounting to the engine formed on the outer periphery on the front end side, and a tightening screw formed on the outer periphery on the rear end side. A tightening screw is formed on the inner periphery of the tip side to engage with the tightening screw on the side of the mounting screw, and the inner periphery of the rear end is connected to the port head side part on which the rear stage for locking is formed. A sealing washer made of a soft metal having a high melting point is interposed between the tip film formed on the side of the mounting screw of the mounting bracket and the body optical layer of the insulator, and A preload is applied to the piezoelectric element by screwing the part and the side part of the bolt head, and at the same time, the washer is pressurized. Furthermore, the threaded part of the side part of the mounting screw and the side part of the port head is welded, and shrinkage due to welding is avoided. A spark plug with a built-in pressure boost that pressurizes the piezoelectric element and the washer.
JP15259982U 1982-10-06 1982-10-06 Spark plug with built-in pressure pick-up Granted JPS5955880U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15259982U JPS5955880U (en) 1982-10-06 1982-10-06 Spark plug with built-in pressure pick-up

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15259982U JPS5955880U (en) 1982-10-06 1982-10-06 Spark plug with built-in pressure pick-up

Publications (2)

Publication Number Publication Date
JPS5955880U true JPS5955880U (en) 1984-04-12
JPS6121818Y2 JPS6121818Y2 (en) 1986-06-30

Family

ID=30337845

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15259982U Granted JPS5955880U (en) 1982-10-06 1982-10-06 Spark plug with built-in pressure pick-up

Country Status (1)

Country Link
JP (1) JPS5955880U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006510888A (en) * 2002-12-20 2006-03-30 シーメンス　ヴイディオー　オートモーティヴ Device for detecting the pressure in the combustion chamber of an engine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54158147U (en) * 1978-04-25 1979-11-05

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54158147U (en) * 1978-04-25 1979-11-05

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006510888A (en) * 2002-12-20 2006-03-30 シーメンス　ヴイディオー　オートモーティヴ Device for detecting the pressure in the combustion chamber of an engine

Also Published As

Publication number Publication date
JPS6121818Y2 (en) 1986-06-30

Similar Documents

Publication Publication Date Title
JPS5955880U (en) Spark plug with built-in pressure pick-up
JP3135710B2 (en) Spark plug with built-in pressure sensor
JPH08226369A (en) Improvement in spark-plug assistor
JPS59130391U (en) spark plug
JPS60136488U (en) Conical seat type spark plug
JPS63490U (en)
JPS5827545U (en) Vibration isolation and mounting structure of vehicle accelerator cable
JPS60118037U (en) hydraulic shock absorber
JPS6057760U (en) Spark plug mounting structure
JPS60158012U (en) Fixing screw fall prevention device
JPH1116452A (en) Switch
JPS5928465U (en) Spot welding electrode removal tool
JPS6071865U (en) crater
JPS60120321U (en) Automotive sensor mounting device
JPS5888038U (en) High tension overhead wire connection device
JPS59107491U (en) Spark plug with built-in pressure pick-up
JPS58111166U (en) electric soldering iron
JPS591985U (en) pipe with socket
JPS6119740U (en) Sensor mounting device in diesel engine
JPS6057775U (en) Nozzle holder connector tube fixing device
JPS5896309U (en) coaxial resonator
JPS5870454U (en) Pipe end connection structure of high pressure fuel injection pipe
JPS5824587U (en) Union
JPS58195069U (en) Water-cooled engine fuel injector mounting device
JPS58194357U (en) Spark ignition torch