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JPS6487867A - Electrtomagnetic fuel injection valve - Google Patents

Electrtomagnetic fuel injection valve

Info

Publication number
JPS6487867A
JPS6487867A JP24376087A JP24376087A JPS6487867A JP S6487867 A JPS6487867 A JP S6487867A JP 24376087 A JP24376087 A JP 24376087A JP 24376087 A JP24376087 A JP 24376087A JP S6487867 A JPS6487867 A JP S6487867A
Authority
JP
Japan
Prior art keywords
fuel injection
stopper
magnetic material
valve
valve seat
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
Application number
JP24376087A
Other languages
Japanese (ja)
Inventor
Kazuyoshi Terakado
Naonobu Kanamaru
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP24376087A priority Critical patent/JPS6487867A/en
Publication of JPS6487867A publication Critical patent/JPS6487867A/en
Pending legal-status Critical Current

Links

Landscapes

  • Fuel-Injection Apparatus (AREA)

Abstract

PURPOSE:To enhance the responsiveness of the opening/closing operation of an injection valve so as to improve the accuracy of fuel injection quantity by forming, with a non-magnetic material, at least either member of a stopper and a valve seat for restricting the stroke of movable elements. CONSTITUTION:A valve guide 9 including a valve seat 9a and a stopper 11 are formed with a titanium alloy which is a non-magnetic material. In this way, the formation with the non-magnetic material makes it possible to form a magnetic circuit with a normal yoke 3, a fixed core 4 and a plunger 5, and to extremely reduce any magnetic leak of the stopper 11 and the valve guide 9. As a result, the magnetism attracting and returning operation of movable elements 5-7 speeds up so as to shorten a period required for the rising and stopping operation of fuel injection, thereby remarkably enhancing fuel injection quantity performance. In addition, the adhesion of iron impurity to the stopper 11 and the valve seat 9a during fuel injection is prevented, thereby improving the accuracy of fuel injection quantity.
JP24376087A 1987-09-30 1987-09-30 Electrtomagnetic fuel injection valve Pending JPS6487867A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24376087A JPS6487867A (en) 1987-09-30 1987-09-30 Electrtomagnetic fuel injection valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24376087A JPS6487867A (en) 1987-09-30 1987-09-30 Electrtomagnetic fuel injection valve

Publications (1)

Publication Number Publication Date
JPS6487867A true JPS6487867A (en) 1989-03-31

Family

ID=17108578

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24376087A Pending JPS6487867A (en) 1987-09-30 1987-09-30 Electrtomagnetic fuel injection valve

Country Status (1)

Country Link
JP (1) JPS6487867A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0599095A (en) * 1991-10-01 1993-04-20 Hitachi Ltd Electromagnetic type fuel injection valve
JP2014126003A (en) * 2012-12-27 2014-07-07 Seiko Epson Corp Stator core and liquid injection valve
JP2017528645A (en) * 2014-09-16 2017-09-28 ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツングＲｏｂｅｒｔ Ｂｏｓｃｈ Ｇｍｂｈ Piston pump having a region with non-magnetic material in a magnetic circuit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0599095A (en) * 1991-10-01 1993-04-20 Hitachi Ltd Electromagnetic type fuel injection valve
JP2014126003A (en) * 2012-12-27 2014-07-07 Seiko Epson Corp Stator core and liquid injection valve
JP2017528645A (en) * 2014-09-16 2017-09-28 ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツングＲｏｂｅｒｔ Ｂｏｓｃｈ Ｇｍｂｈ Piston pump having a region with non-magnetic material in a magnetic circuit

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