JPH0337238U - - Google Patents
Info
- Publication number
- JPH0337238U JPH0337238U JP9756089U JP9756089U JPH0337238U JP H0337238 U JPH0337238 U JP H0337238U JP 9756089 U JP9756089 U JP 9756089U JP 9756089 U JP9756089 U JP 9756089U JP H0337238 U JPH0337238 U JP H0337238U
- Authority
- JP
- Japan
- Prior art keywords
- fuel injection
- pump
- rotation speed
- timer
- injection timing
- 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 11
- 238000002347 injection Methods 0.000 claims description 11
- 239000007924 injection Substances 0.000 claims description 11
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- High-Pressure Fuel Injection Pump Control (AREA)
- Fuel-Injection Apparatus (AREA)
Description
第１図は本考案が適用される燃料噴射ポンプの
一例を示す断面図、第２図はカムデイスクのフエ
イスカムの形状を示す図、第３図はタイマの断面
図、第４図は本考案におけるタイマスプリングの
一実施例を示す図、第５図はタイマによる燃料噴
射時期の進角特性を示す図である。
１……燃料噴射ポンプ、４……カムデイスク、
５……フエイスカム、７……ポンププランジヤ、
２０……タイマ、２２……タイマピストン、２４
……タイマスプリング、２４ａ……ばね定数が小
さい部分、２４ｂ……ばね定数が大きい部分。
Fig. 1 is a sectional view showing an example of a fuel injection pump to which the present invention is applied, Fig. 2 is a view showing the shape of a face cam of a cam disc, Fig. 3 is a sectional view of a timer, and Fig. 4 is a sectional view of a fuel injection pump according to the present invention. FIG. 5 is a diagram showing an example of a timer spring, and is a diagram showing advance characteristics of fuel injection timing by a timer. 1...Fuel injection pump, 4...Cam disc,
5... Face cam, 7... Pump plunger,
20...Timer, 22...Timer piston, 24
...Timer spring, 24a...portion with a small spring constant, 24b...portion with a large spring constant.
Claims (1)
カムが２段形状に形成されるとともに、この燃料
噴射ポンプに、ポンプ回転数に応じた力を受ける
燃料噴射時期調整部材とこの部材を燃料噴射時期
遅角方向に付勢するタイマスプリングとを有して
ポンプ回転数の上昇に応じて燃料噴射時期を進角
させるタイマが具備されたデイーゼルエンジンの
燃料噴射装置において、上記タイマのタイマスプ
リングを、ポンプ低回転域ではばね定数が小さく
てポンプ回転数上昇に伴う変形につれてばね定数
が増大するように形成したことを特徴とするデイ
ーゼルエンジンの燃料噴射装置。 A cam that operates a pump plunger of a fuel injection pump is formed in a two-stage shape, and a fuel injection timing adjustment member that receives a force according to the pump rotation speed and a fuel injection timing adjustment member that receives a force corresponding to the pump rotation speed are arranged in the fuel injection timing retard direction. In a fuel injection device for a diesel engine, the timer is equipped with a timer that advances the fuel injection timing in response to an increase in the pump rotation speed, and the timer spring is biased in the pump low rotation speed range. A fuel injection device for a diesel engine, characterized in that the spring constant is small and increases as the pump deforms as the rotational speed increases.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9756089U JPH0337238U (en) | 1989-08-21 | 1989-08-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9756089U JPH0337238U (en) | 1989-08-21 | 1989-08-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0337238U true JPH0337238U (en) | 1991-04-11 |
Family
ID=31646697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9756089U Pending JPH0337238U (en) | 1989-08-21 | 1989-08-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0337238U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010144356A (en) * | 2008-12-17 | 2010-07-01 | Sekisui Jushi Co Ltd | Marking body for road |
-
1989
- 1989-08-21 JP JP9756089U patent/JPH0337238U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010144356A (en) * | 2008-12-17 | 2010-07-01 | Sekisui Jushi Co Ltd | Marking body for road |
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