JPS6264868U

JPS6264868U -

Info

Publication number: JPS6264868U
Application number: JP15526485U
Authority: JP
Priority date: 1985-10-12
Filing date: 1985-10-12
Publication date: 1987-04-22

Description

[Brief explanation of the drawing]

第１図は第３図の燃料噴射ノズルの先端部分の
拡大図、第２図は第１図の線―に沿つた断面
図、第３図は本考案による燃料噴射ノズルを含む
複燃料供給装置の構成図、第４図は第２実施例を
示す第１図同様の図、第５図は第４図の線―
に沿つた断面図である。１０……燃料噴射ポンプ、１２……圧送器、１
４……燃料噴射ノズル、７０……ノズル本体、７
２……ニードル弁、７４……第１の燃料通路、７
８……第２の燃料通路、８４……シート部、８６
……最先端のテーパー部、９４……多孔質材のリ
ング。 Figure 1 is an enlarged view of the tip of the fuel injection nozzle in Figure 3, Figure 2 is a sectional view taken along the line - in Figure 1, and Figure 3 is a dual fuel supply device including the fuel injection nozzle according to the present invention. Fig. 4 is a diagram similar to Fig. 1 showing the second embodiment, and Fig. 5 shows the line of Fig. 4.
FIG. 10... fuel injection pump, 12... pressure feeder, 1
4... Fuel injection nozzle, 70... Nozzle body, 7
2... Needle valve, 74... First fuel passage, 7
8...Second fuel passage, 84...Seat portion, 86
...The most advanced tapered part, 94...A ring made of porous material.

Claims

[Scope of utility model registration request]

A nozzle body having a fuel injection port and a seat portion formed in a conical shape around the fuel injection port, and a tapered portion that is inserted into the nozzle body and cooperates with the seat portion to open and close the injection port. In a fuel injection nozzle comprising a needle valve,
A first fuel passage is formed along the nozzle body, and a second fuel passage extends within the needle valve in the axial direction thereof.
forming a fuel passageway, a portion of the needle valve being formed by a ring of porous material, the ring of porous material forming a lateral connection connecting the second fuel passageway to the first fuel passageway; A fuel injection nozzle characterized by forming a passage.