JPS64354A - Surface working method for guide of fuel valve nozzle of internal combustion engine and its needle valve - Google Patents
Surface working method for guide of fuel valve nozzle of internal combustion engine and its needle valveInfo
- Publication number
- JPS64354A JPS64354A JP15143387A JP15143387A JPS64354A JP S64354 A JPS64354 A JP S64354A JP 15143387 A JP15143387 A JP 15143387A JP 15143387 A JP15143387 A JP 15143387A JP S64354 A JPS64354 A JP S64354A
- Authority
- JP
- Japan
- Prior art keywords
- guide
- hole
- valve
- valve body
- needle valve
- 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
Abstract
PURPOSE: To prevent sticking in a sliding part of a fuel valve nozzle by making the surface of the guide part of a needle valve which is guided in the guide hole of the valve body as sliding freely into a satin finished surface in a certain range of surface roughness.
CONSTITUTION: A guide hole 4 which guides a part 3 of a needle valve 2 is formed in a valve body 1. And an oil reservoir 5 is continuously formed in the guide hole and a tapered suck hole 6 is connected to the oil reservoir 5. And several nozzles 7 which connect the suck hole 6 to the outside are formed in the valve body 1 and a longitudinal hole 8 which supplies fuel from a pump to the oil reservoir 5 is also formed in the valve body 1. On the other hand a seat part 9 which contacts tight with the suck hole 6 is formed at the top end of the guide part 3. In this constitution the surface of the guide part 3 is worked into a satin finished surface of which the surface roughness Rmax is in the range between 0.4SW0.6S.
COPYRIGHT: (C)1989,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62-151433A JPH01354A (en) | 1987-06-19 | Surface processing method for a guide portion of a fuel valve nozzle of an internal combustion engine and a needle valve of the fuel valve nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62-151433A JPH01354A (en) | 1987-06-19 | Surface processing method for a guide portion of a fuel valve nozzle of an internal combustion engine and a needle valve of the fuel valve nozzle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS64354A true JPS64354A (en) | 1989-01-05 |
| JPH01354A JPH01354A (en) | 1989-01-05 |
Family
ID=
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000017512A1 (en) * | 1998-09-22 | 2000-03-30 | Robert Bosch Gmbh | Fuel injection valve for internal combustion engines |
| JP2002111105A (en) * | 2000-09-27 | 2002-04-12 | Shibaura Mechatronics Corp | Laser diode module device and laser oscillator |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS568853B2 (en) * | 1973-06-19 | 1981-02-26 | ||
| JPS5857560B2 (en) * | 1978-06-21 | 1983-12-20 | エイ．アルストロ−ム オサケイテイオ | Method for forming continuous material webs of fibrous particles from highly concentrated suspensions |
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS568853B2 (en) * | 1973-06-19 | 1981-02-26 | ||
| JPS5857560B2 (en) * | 1978-06-21 | 1983-12-20 | エイ．アルストロ−ム オサケイテイオ | Method for forming continuous material webs of fibrous particles from highly concentrated suspensions |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000017512A1 (en) * | 1998-09-22 | 2000-03-30 | Robert Bosch Gmbh | Fuel injection valve for internal combustion engines |
| JP2002525488A (en) * | 1998-09-22 | 2002-08-13 | 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 | Fuel injection valve for internal combustion engine |
| JP2002111105A (en) * | 2000-09-27 | 2002-04-12 | Shibaura Mechatronics Corp | Laser diode module device and laser oscillator |
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