JPS6271343U - - Google Patents
Info
- Publication number
- JPS6271343U JPS6271343U JP16333685U JP16333685U JPS6271343U JP S6271343 U JPS6271343 U JP S6271343U JP 16333685 U JP16333685 U JP 16333685U JP 16333685 U JP16333685 U JP 16333685U JP S6271343 U JPS6271343 U JP S6271343U
- Authority
- JP
- Japan
- Prior art keywords
- atmospheric pressure
- fuel injection
- injection timing
- fuel
- push rod
- 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
- 238000002347 injection Methods 0.000 claims description 16
- 239000007924 injection Substances 0.000 claims description 16
- 239000000446 fuel Substances 0.000 claims description 10
- 238000001514 detection method Methods 0.000 claims description 2
- 230000007423 decrease Effects 0.000 claims 2
- 238000006073 displacement reaction Methods 0.000 claims 2
- 230000001276 controlling effect Effects 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- High-Pressure Fuel Injection Pump Control (AREA)
Description
図面は本考案の実施例を示し、第１図は燃料噴
射ポンプの断面図、第２図は大気圧の変動に対す
る燃料の噴射量および噴射時期の各特性を示す特
性図である。
Ａ……燃料噴射ポンプ、２……ポンプ室、４…
…フイードポンプ、５……プランジヤ、１１……
噴射時期制御装置、１３……タイマピストン、１
５……コントロールスリーブ、２６……ガバナレ
バー、２７……遠心力フライウエイト機構、３６
……圧力検出部材、３９……プツシユロツド、３
９ｂ……弁部、４２……噴射量補正装置、４３…
…オーバーフロー通路、４５……噴射時期補正装
置。
The drawings show an embodiment of the present invention, and FIG. 1 is a cross-sectional view of a fuel injection pump, and FIG. 2 is a characteristic diagram showing the characteristics of fuel injection amount and injection timing with respect to fluctuations in atmospheric pressure. A...Fuel injection pump, 2...Pump chamber, 4...
...Feed pump, 5...Plunger, 11...
Injection timing control device, 13...timer piston, 1
5...Control sleeve, 26...Governor lever, 27...Centrifugal flyweight mechanism, 36
...Pressure detection member, 39...Push rod, 3
9b... Valve section, 42... Injection amount correction device, 43...
...Overflow passage, 45...Injection timing correction device.
Claims (1)
部材にプツシユロツドが連結され、該プツシユロ
ツドの大気圧低下に伴う変位によりガバナレバー
の動きを規制して燃料噴射量を減量補正する噴射
量補正手段と、ポンプ室内の燃料圧に応じて燃料
噴射時期を制御する噴射時期制御手段とを備えた
燃料噴射ポンプの大気圧補正装置において、大気
圧の低下時、上記ポンプ室内の燃料をオーバーフ
ローさせるオーバーフロー通路の有効断面積を上
記プツシユロツドの変位に連係して小さくして、
上記噴射時期制御手段による燃料噴射時期を進み
側に補正する噴射時期補正手段を設けたことを特
徴とする燃料噴射ポンプの大気圧補正装置。 A push rod is connected to a pressure detection member such as a bellows that detects fluctuations in atmospheric pressure, and an injection amount correction means for regulating the movement of a governor lever and correcting a reduction in the amount of fuel injection by displacement of the push rod as the atmospheric pressure decreases; In an atmospheric pressure correction device for a fuel injection pump, which is equipped with an injection timing control means for controlling fuel injection timing according to fuel pressure in the chamber, an overflow passage that causes fuel in the pump chamber to overflow is effectively cut off when the atmospheric pressure decreases. The area is reduced in conjunction with the displacement of the push rod,
An atmospheric pressure correction device for a fuel injection pump, comprising an injection timing correction means for correcting the fuel injection timing by the injection timing control means to an advanced side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16333685U JPS6271343U (en) | 1985-10-24 | 1985-10-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16333685U JPS6271343U (en) | 1985-10-24 | 1985-10-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6271343U true JPS6271343U (en) | 1987-05-07 |
Family
ID=31091437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16333685U Pending JPS6271343U (en) | 1985-10-24 | 1985-10-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6271343U (en) |
-
1985
- 1985-10-24 JP JP16333685U patent/JPS6271343U/ja active Pending
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