JPS63164U - - Google Patents
Info
- Publication number
- JPS63164U JPS63164U JP9413486U JP9413486U JPS63164U JP S63164 U JPS63164 U JP S63164U JP 9413486 U JP9413486 U JP 9413486U JP 9413486 U JP9413486 U JP 9413486U JP S63164 U JPS63164 U JP S63164U
- Authority
- JP
- Japan
- Prior art keywords
- chamber
- delivery
- plunger
- pressure
- fuel
- 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 7
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第１図は本考案に係る燃料噴射ポンプの縦断面
図、第２図は同作動説明図、第３図は本考案及び
従来の噴射時の高圧パイプ側チヤンバ内の圧力特
性を示す模式図である。
５……プランジヤバレル、８……プランジヤ、
１５……フユーエルチヤンバ、２０……デリバリ
バルブ、２３……高圧パイプ側チヤンバ、２７…
…デリバリチヤンバ、２８……連通路。
Fig. 1 is a longitudinal cross-sectional view of the fuel injection pump according to the present invention, Fig. 2 is an explanatory diagram of its operation, and Fig. 3 is a schematic diagram showing the pressure characteristics in the high-pressure pipe side chamber during injection of the present invention and the conventional one. be. 5... Plunger barrel, 8... Plunger,
15...Fuel chamber, 20...Delivery valve, 23...High pressure pipe side chamber, 27...
...Delivery chamber, 28...Communication path.
Claims (1)
向に摺動自在に内装されるプランジヤバレルと、
該プランジヤバレル内に前記プランジヤ頭部に接
して形成され、該プランジヤの軸方向の摺動によ
つて燃料の吸入、圧送が行なわれるデリバリチヤ
ンバと、常時ほぼ一定の圧力を有し、該デリバリ
チヤンバと圧送行程以外のときに連通するフユー
エルチヤンバと、前記デリバリチヤンバ内が所定
の圧力以上となつたときに開弁するデリバリバル
ブと、該デリバリバルブの反前記デリバリチヤン
バ側に接して設けられ、前記デリバリバルブの開
弁時に前記デリバリチヤンバから燃料を供給され
る高圧パイプ側チヤンバとを有する燃料噴射ポン
プにおいて、前記プランジヤの圧送行程以外のと
きに該デリバリチヤンバと前記高圧パイプ側チヤ
ンバとが連通するように構成したことを特徴とす
る燃料噴射ポンプ。 a plunger; a plunger barrel in which the plunger is slidably installed in the axial direction and the circumferential direction;
a delivery chamber formed in the plunger barrel in contact with the plunger head, in which fuel is sucked and pumped by sliding in the axial direction of the plunger; and a delivery chamber having a substantially constant pressure at all times, A fuel chamber that communicates with the chamber at times other than the pressure-feeding stroke, a delivery valve that opens when the pressure inside the delivery chamber reaches a predetermined level, and a side of the delivery valve opposite to the delivery chamber. In a fuel injection pump having a high-pressure pipe-side chamber that is provided in contact with the delivery chamber and is supplied with fuel from the delivery chamber when the delivery valve is opened, the delivery chamber and the high-pressure chamber are A fuel injection pump characterized in that it is configured to communicate with a pipe side chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9413486U JPS63164U (en) | 1986-06-20 | 1986-06-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9413486U JPS63164U (en) | 1986-06-20 | 1986-06-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63164U true JPS63164U (en) | 1988-01-05 |
Family
ID=30957298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9413486U Pending JPS63164U (en) | 1986-06-20 | 1986-06-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63164U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5030492U (en) * | 1973-07-13 | 1975-04-05 | ||
| JPS5244331A (en) * | 1975-10-07 | 1977-04-07 | Mitsubishi Heavy Ind Ltd | Bosch type fuel injection pump |
-
1986
- 1986-06-20 JP JP9413486U patent/JPS63164U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5030492U (en) * | 1973-07-13 | 1975-04-05 | ||
| JPS5244331A (en) * | 1975-10-07 | 1977-04-07 | Mitsubishi Heavy Ind Ltd | Bosch type fuel injection pump |
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