JPS63123761U - - Google Patents
Info
- Publication number
- JPS63123761U JPS63123761U JP1549287U JP1549287U JPS63123761U JP S63123761 U JPS63123761 U JP S63123761U JP 1549287 U JP1549287 U JP 1549287U JP 1549287 U JP1549287 U JP 1549287U JP S63123761 U JPS63123761 U JP S63123761U
- Authority
- JP
- Japan
- Prior art keywords
- barrel
- plunger
- ring groove
- fuel
- return hole
- 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.)
- Granted
Links
- 239000000446 fuel Substances 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 238000011084 recovery Methods 0.000 claims description 3
- 239000000314 lubricant Substances 0.000 claims 2
- 239000010687 lubricating oil Substances 0.000 description 2
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第１図は本考案による噴射時期可変式燃料噴射
ポンプの一実施例を示す断面図、第２図は潤滑油
供給路を実線状態で示す部分的拡大図である。
１……ポンプ本体、３……バレル、４……プラ
ンジヤ、７……コントロールスリーブ、８……コ
ントロールラツク、９ａ，９ｂ，９ｃ……リング
溝、１０……潤滑油供給路、１９……燃料溜室、
３０……リーク燃料回収室、３１……リーク燃料
回収口、３６……一次リーク戻し孔、３７……二
次リーク戻し孔。
FIG. 1 is a cross-sectional view showing an embodiment of a variable injection timing fuel injection pump according to the present invention, and FIG. 2 is a partially enlarged view showing a lubricating oil supply path in a solid line state. 1... Pump body, 3... Barrel, 4... Plunger, 7... Control sleeve, 8... Control rack, 9a, 9b, 9c... Ring groove, 10... Lubricating oil supply path, 19... Fuel reservoir room,
30...Leak fuel recovery chamber, 31...Leak fuel recovery port, 36...Primary leak return hole, 37...Secondary leak return hole.
Claims (1)
つ回動可能に内蔵するバレルを配し、該バレルを
コントロールスリーブとコントロールラツクによ
り上下動して噴射タイミングの調節を行うように
し、ポンプ本体下端からプランジヤおよびプラン
ジヤスプリングが突出しこれがエンジンルーム内
のタペツトに搭載される噴射ポンプであつて、前
記プランジヤのリードより下方のバレル内周に、
互いに所要の間隔を置いて複数段のリング溝を形
成し、上位のリング溝を一次戻し孔を介してバレ
ル外周の燃料溜室に連絡する一方、中間のリング
溝をバレル軸線方向に穿設した二次リーク戻し孔
を介してバレル上部の大気開放リーク燃料回収室
に連通させ、最下位のリング溝を、ポンプ本体に
形成した潤滑油入口からバレル壁中に到る潤滑油
供給路に連絡したことを特徴とする噴射時期可変
式燃料噴射ポンプ。 The pump body is equipped with a plunger and a barrel containing the plunger that can be moved up and down and rotated, and the barrel is moved up and down by a control sleeve and a control rack to adjust the injection timing. A plunger spring protrudes from the injection pump, which is mounted on a tappet in the engine room, and is located on the inner periphery of the barrel below the lead of the plunger.
Multiple stages of ring grooves are formed at the required intervals, and the upper ring groove is connected to the fuel reservoir chamber on the outer circumference of the barrel via the primary return hole, while the middle ring groove is bored in the barrel axis direction. The secondary leak return hole communicates with the leak fuel recovery chamber that is open to the atmosphere at the top of the barrel, and the lowest ring groove connects with the lubricant supply path that extends from the lubricant inlet formed in the pump body into the barrel wall. A fuel injection pump with variable injection timing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987015492U JPH0341090Y2 (en) | 1987-02-06 | 1987-02-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987015492U JPH0341090Y2 (en) | 1987-02-06 | 1987-02-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63123761U true JPS63123761U (en) | 1988-08-11 |
| JPH0341090Y2 JPH0341090Y2 (en) | 1991-08-29 |
Family
ID=30806477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987015492U Expired JPH0341090Y2 (en) | 1987-02-06 | 1987-02-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0341090Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111350622A (en) * | 2018-12-20 | 2020-06-30 | 株式会社电装 | High pressure pump |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6067767A (en) * | 1983-09-22 | 1985-04-18 | Yanmar Diesel Engine Co Ltd | Fuel injection pump |
-
1987
- 1987-02-06 JP JP1987015492U patent/JPH0341090Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6067767A (en) * | 1983-09-22 | 1985-04-18 | Yanmar Diesel Engine Co Ltd | Fuel injection pump |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111350622A (en) * | 2018-12-20 | 2020-06-30 | 株式会社电装 | High pressure pump |
| JP2020101100A (en) * | 2018-12-20 | 2020-07-02 | 株式会社デンソー | High pressure pump |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0341090Y2 (en) | 1991-08-29 |
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