JPS63138471U - - Google Patents
Info
- Publication number
- JPS63138471U JPS63138471U JP2887687U JP2887687U JPS63138471U JP S63138471 U JPS63138471 U JP S63138471U JP 2887687 U JP2887687 U JP 2887687U JP 2887687 U JP2887687 U JP 2887687U JP S63138471 U JPS63138471 U JP S63138471U
- Authority
- JP
- Japan
- Prior art keywords
- delivery valve
- fuel
- delivery
- injection pump
- fuel injection
- 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 18
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第１図は従来からの燃料噴射ポンプ１の縦断面
図、第２図は同、デリバリバルブ機構４の縦断面
図、第３図は同、デリバリバルブ２１の側面図、
第４図は同、デリバリバルブ２１の底面図、第５
図は同、デリバリバルブ２１の斜視図、第６図は
本考案の一実施例によるデリバリバルブ機構３０
の縦断面図、第７図は同、デリバリバルブ３１の
側面図、第８図は同、デリバリバルブ３１の底面
図、第９図は同、デリバリバルブ３１の斜視図で
ある。
１……燃料噴射ポンプ、２……ポンプ本体、３
……デリバリバルブホルダ、４……デリバリバル
ブ機構、５……燃料出口、６……プランジヤバレ
ル、７……プランジヤ、８……燃料溜り室、９…
…燃料吸排孔、１０……燃料圧室、１１……タペ
ツト、１２……タペツトローラ、１３……カムシ
ヤフト、１４……プランジヤスプリング、１５…
…噴射量コントロールラツク、１６……噴射量コ
ントロールスリーブ、１７……リード、２０……
デリバリバルブシート、２１……デリバリバルブ
、２２……連通孔、２３……デリバリバルブ羽根
部、２４……デリバリバルブカラー部、２５……
デリバリバルブシート部、２６……頭部、２７…
…デリバリバルブスプリング、２７ａ……二番目
のスプリング部分、２８……着座部、２９……燃
料吐出用溝、２９ａ……切上がり部、３０……デ
リバリバルブ機構、３１……デリバリバルブ、３
２……燃料吐出用溝、３２ａ……切上がり部、３
３……頭部。
FIG. 1 is a longitudinal sectional view of a conventional fuel injection pump 1, FIG. 2 is a longitudinal sectional view of a delivery valve mechanism 4, and FIG. 3 is a side view of a delivery valve 21.
Figure 4 is a bottom view of the delivery valve 21.
The figure is a perspective view of the delivery valve 21, and FIG. 6 is a delivery valve mechanism 30 according to an embodiment of the present invention.
7 is a side view of the delivery valve 31, FIG. 8 is a bottom view of the delivery valve 31, and FIG. 9 is a perspective view of the delivery valve 31. 1...Fuel injection pump, 2...Pump body, 3
...Delivery valve holder, 4...Delivery valve mechanism, 5...Fuel outlet, 6...Plunger barrel, 7...Plunger, 8...Fuel reservoir chamber, 9...
... Fuel intake and exhaust hole, 10 ... Fuel pressure chamber, 11 ... Tappet, 12 ... Tappet roller, 13 ... Camshaft, 14 ... Plunger spring, 15 ...
...Injection amount control rack, 16...Injection amount control sleeve, 17...Lead, 20...
Delivery valve seat, 21...Delivery valve, 22...Communication hole, 23...Delivery valve vane portion, 24...Delivery valve collar portion, 25...
Delivery valve seat part, 26...Head, 27...
...Delivery valve spring, 27a...Second spring portion, 28...Seating portion, 29...Fuel discharge groove, 29a...Running portion, 30...Delivery valve mechanism, 31...Delivery valve, 3
2... Fuel discharge groove, 32a... Cut-up portion, 3
3...Head.
Claims (1)
ルブシートに着座するデリバリバルブと、このデ
リバリバルブを前記デリバリバルブシートに付勢
するデリバリバルブスプリングと、前記デリバリ
バルブに形成したデリバリカラー部、デリバリバ
ルブ羽根部および該デリバリバルブ羽根部の間に
形成した燃料吐出用溝とを有し、燃料噴射ポンプ
の燃料出口とプランジヤとの間に配設する燃料噴
射ポンプのデリバリバルブ機構であつて、 前記デリバリバルブの前記燃料吐出用溝を該デ
リバリバルブの軸線方向に対して平行に形成し、
前記プランジヤの上下動に応じて該燃料吐出用溝
を通つて前記デリバリバルブから前記燃料出口に
向かう燃料により該デリバリバルブが回転しない
ようにしたことを特徴とする燃料噴射ポンプのデ
リバリバルブ機構。 (2) 前記デリバリバルブスプリングがデリバリ
バルブに当接する部分に形成したデリバリバルブ
の頭部の外周を面取りし、該頭部と前記デリバリ
バルブスプリングとの接触摩耗を回避するように
したことを特徴とする実用新案登録請求の範囲第
１項に記載の燃料噴射ポンプのデリバリバルブ機
構。[Claims for Utility Model Registration] (1) A delivery valve seat, a delivery valve seated on the delivery valve seat, a delivery valve spring that biases the delivery valve against the delivery valve seat, and a delivery valve spring formed on the delivery valve. A delivery valve mechanism for a fuel injection pump, which has a delivery collar, a delivery valve vane, and a fuel discharge groove formed between the delivery valve vanes, and is disposed between a fuel outlet of the fuel injection pump and a plunger. The fuel discharge groove of the delivery valve is formed parallel to the axial direction of the delivery valve,
A delivery valve mechanism for a fuel injection pump, characterized in that the delivery valve is prevented from rotating due to fuel flowing from the delivery valve to the fuel outlet through the fuel discharge groove in accordance with the vertical movement of the plunger. (2) The outer periphery of the head of the delivery valve formed at the portion where the delivery valve spring contacts the delivery valve is chamfered to avoid contact wear between the head and the delivery valve spring. A delivery valve mechanism for a fuel injection pump according to Claim 1 of the Utility Model Registration Claim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2887687U JPS63138471U (en) | 1987-03-02 | 1987-03-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2887687U JPS63138471U (en) | 1987-03-02 | 1987-03-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63138471U true JPS63138471U (en) | 1988-09-12 |
Family
ID=30832242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2887687U Pending JPS63138471U (en) | 1987-03-02 | 1987-03-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63138471U (en) |
-
1987
- 1987-03-02 JP JP2887687U patent/JPS63138471U/ja active Pending
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