JPS6295143U - - Google Patents
Info
- Publication number
- JPS6295143U JPS6295143U JP18802185U JP18802185U JPS6295143U JP S6295143 U JPS6295143 U JP S6295143U JP 18802185 U JP18802185 U JP 18802185U JP 18802185 U JP18802185 U JP 18802185U JP S6295143 U JPS6295143 U JP S6295143U
- Authority
- JP
- Japan
- Prior art keywords
- spring
- fuel reservoir
- pressure chamber
- set load
- fuel
- 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
- 239000000446 fuel Substances 0.000 claims description 9
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
- 239000002828 fuel tank Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- High-Pressure Fuel Injection Pump Control (AREA)
Description
第１図は本考案に係る分配型燃料噴射ポンプの
噴射時期調整装置の正面断面図、第２図は同分配
型燃料噴射ポンプの噴射時期調整装置の特性を従
来例と比較して示す線図、第３図は一般的な噴射
時期調整装置を備えた燃料噴射ポンプの側面断面
図である。
２２：レバー、２３：シリンダ、２４：ピスト
ン、２５：高圧室、２６：低圧室、３１：ストツ
パ、３３：サーボ弁、３５：中間ばね座、３６：
円筒部、３８ａ，３８ｂ：ばね、３９：ポート。
Fig. 1 is a front sectional view of the injection timing adjustment device for a distribution type fuel injection pump according to the present invention, and Fig. 2 is a diagram showing the characteristics of the injection timing adjustment device for the distribution type fuel injection pump in comparison with a conventional example. , FIG. 3 is a side sectional view of a fuel injection pump equipped with a general injection timing adjustment device. 22: Lever, 23: Cylinder, 24: Piston, 25: High pressure chamber, 26: Low pressure chamber, 31: Stopper, 33: Servo valve, 35: Intermediate spring seat, 36:
Cylindrical portion, 38a, 38b: spring, 39: port.
Claims (1)
圧アクチユエータが、シリンダの内部に嵌装した
ピストンにより仕切られる低圧室を燃料タンク側
に、高圧室をポンプハウジングの燃料溜室にそれ
ぞれ接続して構成し、 前記ピストンに設けられかつ前記燃料溜室に連
なる円筒部に、前記燃料溜室の圧力とこれに抗す
るばねの力により押動されかつ前記高圧室を前記
燃料溜室または前記低圧室に連通・遮断可能のサ
ーボ弁を嵌合し、 前記ばねを前記サーボ弁と中間ばね座との間に
介装したセツト荷重が大きくばね定数が小さい第
１のばねと、 前記中間ばね座と前記シリンダ端壁との間に介
装したセツト荷重が小さくばね定数が大きい第２
のばねとから構成したことを特徴とする分配型燃
料噴射ポンプの噴射時期調整装置。[Scope of Claim for Utility Model Registration] A hydraulic actuator for adjusting injection timing that rotationally displaces a roller holder has a low pressure chamber separated by a piston fitted inside the cylinder facing the fuel tank, and a high pressure chamber facing the fuel reservoir of the pump housing. A cylindrical portion provided on the piston and connected to the fuel reservoir is pressed by the pressure of the fuel reservoir and the force of a spring resisting the pressure of the fuel reservoir, and the high pressure chamber is connected to the fuel reservoir. a first spring having a large set load and a small spring constant, the spring being interposed between the servo valve and the intermediate spring seat, the first spring having a large set load and a small spring constant; A second spring with a small set load and a large spring constant is interposed between the intermediate spring seat and the cylinder end wall.
An injection timing adjustment device for a distribution type fuel injection pump, characterized by comprising a spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18802185U JPS6295143U (en) | 1985-12-06 | 1985-12-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18802185U JPS6295143U (en) | 1985-12-06 | 1985-12-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6295143U true JPS6295143U (en) | 1987-06-17 |
Family
ID=31139004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18802185U Pending JPS6295143U (en) | 1985-12-06 | 1985-12-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6295143U (en) |
-
1985
- 1985-12-06 JP JP18802185U patent/JPS6295143U/ja active Pending