JPS63110640U - - Google Patents
Info
- Publication number
- JPS63110640U JPS63110640U JP186987U JP186987U JPS63110640U JP S63110640 U JPS63110640 U JP S63110640U JP 186987 U JP186987 U JP 186987U JP 186987 U JP186987 U JP 186987U JP S63110640 U JPS63110640 U JP S63110640U
- Authority
- JP
- Japan
- Prior art keywords
- fuel injection
- chamber
- pump chamber
- pump
- roller
- 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 7
- 239000007924 injection Substances 0.000 claims description 7
Landscapes
- High-Pressure Fuel Injection Pump Control (AREA)
Description
第１図はこの考案の一実施例の燃料噴射ポンプ
の断面図、第２図は第１図の燃料噴射ポンプに設
けられぬ燃料噴射時期制御装置のタイマピストン
部の拡大された断面図、第３図は第２図の逆止弁
部の拡大された断面図、第４図は従来の燃料噴射
ポンプの断面図である。
１…駆動軸、５…カムデイスク、１１…プラン
ジヤ、１５…ポンプ室、１７…燃料噴射弁、２１
…シリンダ室、２７…タイマピストン、３０…ロ
ーラ、３１…ローラホルダ、３９，４１…連通孔
、５１…逆止弁。
FIG. 1 is a cross-sectional view of a fuel injection pump according to an embodiment of this invention, FIG. 3 is an enlarged cross-sectional view of the check valve portion of FIG. 2, and FIG. 4 is a cross-sectional view of a conventional fuel injection pump. DESCRIPTION OF SYMBOLS 1... Drive shaft, 5... Cam disk, 11... Plunger, 15... Pump chamber, 17... Fuel injection valve, 21
...Cylinder chamber, 27...Timer piston, 30...Roller, 31...Roller holder, 39, 41...Communication hole, 51...Check valve.
Claims (1)
室から受けた貯溜室内燃料をカムデイスクの回転
により往復移動して燃料噴射弁側に供給するプラ
ンジヤと、カムデイスクのカム面に接触するロー
ラを支持するローラホルダと、前記ポンプ室に連
通するシリンダ室内に収納され且つローラホルダ
に連結されてポンプ室圧に応じて移動するピスト
ンとを有し、このピストンの移動によりローラホ
ルダを回転させて燃料噴射時期を制御する分配型
燃料噴射ポンプにおいて、前記ポンプ室とシリン
ダ室とを連通する連通路を複数設け、この複数の
連通路のうち少なくとも１つを除いた連通路にポ
ンプ室からシリンダ室への燃料の流れのみを許す
逆止弁を設けたことを特徴とする分配型燃料噴射
ポンプ。 A cam disk that rotates together with the drive shaft, a plunger that reciprocates the fuel in the storage chamber received from the pump chamber by rotation of the cam disk and supplies it to the fuel injection valve, and a roller that supports the roller that comes into contact with the cam surface of the cam disk. It has a holder and a piston that is housed in a cylinder chamber that communicates with the pump chamber and is connected to the roller holder and moves according to the pump chamber pressure, and the movement of the piston rotates the roller holder to determine the fuel injection timing. In the distribution type fuel injection pump to be controlled, a plurality of communication passages are provided that communicate the pump chamber and the cylinder chamber, and the communication passages excluding at least one of the plurality of communication passages are used to conduct fuel from the pump chamber to the cylinder chamber. A distribution type fuel injection pump characterized by being equipped with a check valve that only allows flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP186987U JPS63110640U (en) | 1987-01-12 | 1987-01-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP186987U JPS63110640U (en) | 1987-01-12 | 1987-01-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63110640U true JPS63110640U (en) | 1988-07-15 |
Family
ID=30780179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP186987U Pending JPS63110640U (en) | 1987-01-12 | 1987-01-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63110640U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19602474B4 (en) * | 1995-01-24 | 2009-07-09 | Nippon Soken, Inc., Nishio-shi | Injection timing control device for a fuel injection pump |
-
1987
- 1987-01-12 JP JP186987U patent/JPS63110640U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19602474B4 (en) * | 1995-01-24 | 2009-07-09 | Nippon Soken, Inc., Nishio-shi | Injection timing control device for a fuel injection pump |