JPS6174666U - - Google Patents
Info
- Publication number
- JPS6174666U JPS6174666U JP16024784U JP16024784U JPS6174666U JP S6174666 U JPS6174666 U JP S6174666U JP 16024784 U JP16024784 U JP 16024784U JP 16024784 U JP16024784 U JP 16024784U JP S6174666 U JPS6174666 U JP S6174666U
- Authority
- JP
- Japan
- Prior art keywords
- discharge valve
- plunger
- chamber
- fuel
- valve
- 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 4
- 239000007924 injection Substances 0.000 claims description 4
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第１図は、本考案の実施例による燃料噴射ポン
プの縦断面図、第２図は、第１図に示された吐出
弁の斜視図、第３図は、第１図の部分拡大断面図
である。
２……吐出弁室、４……吐出弁、６……プラン
ジヤ、７ａ……給油孔、８……プランジヤ室、９
……燃料通路溝、１０……スプリング、１１……
逆止弁、４１……吸戻し用カラー、４１ｂ……凹
部、４２……弁軸、４２ａ……シート部、４２ｃ
……ガイド。
FIG. 1 is a longitudinal sectional view of a fuel injection pump according to an embodiment of the present invention, FIG. 2 is a perspective view of the discharge valve shown in FIG. 1, and FIG. 3 is a partially enlarged sectional view of FIG. 1. It is. 2...Discharge valve chamber, 4...Discharge valve, 6...Plunger, 7a...Oil supply hole, 8...Plunger chamber, 9
...Fuel passage groove, 10...Spring, 11...
Check valve, 41... Suction back collar, 41b... Recess, 42... Valve stem, 42a... Seat part, 42c
……guide.
Claims (1)
プランジヤのほぼ鉛直方向上下のスライドにより
容積を変えるプランジヤ室と、該プランジヤ室の
圧力の上昇によりスプリングの付勢力に抗して開
弁する吐出弁と、該吐出弁から吐出される燃料を
高圧に保ち前記スプリングを設置する吐出弁室と
、該吐出弁室から前記プランジヤ室に向かう流れ
のみに対して開弁する逆止弁とから成る燃料噴射
ポンプにおいて、前記吐出弁室に対向し、前記ス
プリングの一部を収容する凹部を備えた吸戻し用
カラーと、該吸戻し用カラーから延びる弁軸と、
該弁軸の先端付近に形成されたシート部と、該シ
ート部より前記吸戻し用カラー側に位置して前記
弁軸の摺動部をなすガイドと、該ガイドの摺動面
に前記弁軸の軸線に対して斜めに切られた燃料通
路溝とから前記吐出弁を構成したことを特徴とす
る燃料噴射ポンプ。 A plunger that pumps fuel from a fuel supply hole, a plunger chamber whose volume is changed by sliding the plunger up and down in a substantially vertical direction, and a discharge valve that opens against the biasing force of a spring due to an increase in pressure in the plunger chamber. , a fuel injection pump comprising a discharge valve chamber in which the spring is installed to maintain the fuel discharged from the discharge valve at a high pressure, and a check valve that opens only to flow from the discharge valve chamber toward the plunger chamber. a suction-return collar that faces the discharge valve chamber and includes a recess for accommodating a portion of the spring; and a valve shaft extending from the suction-return collar;
a seat portion formed near the tip of the valve shaft; a guide located closer to the suction collar than the seat portion and forming a sliding portion of the valve shaft; and a sliding surface of the guide formed with the valve shaft. A fuel injection pump characterized in that the discharge valve is constituted by a fuel passage groove cut obliquely with respect to an axis of the fuel injection pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16024784U JPS6174666U (en) | 1984-10-23 | 1984-10-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16024784U JPS6174666U (en) | 1984-10-23 | 1984-10-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6174666U true JPS6174666U (en) | 1986-05-20 |
Family
ID=30718172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16024784U Pending JPS6174666U (en) | 1984-10-23 | 1984-10-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6174666U (en) |
-
1984
- 1984-10-23 JP JP16024784U patent/JPS6174666U/ja active Pending
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