JPH0228923U

JPH0228923U -

Info

Publication number: JPH0228923U
Application number: JP10272988U
Authority: JP
Priority date: 1988-08-04
Filing date: 1988-08-04
Publication date: 1990-02-23

Description

[Brief explanation of the drawing]

第１図は本考案に係る一実施例を示す断面図、
第２図は第１図の部分拡大図、第３図は第１図の
―断面図、第４図は第１図の―断面図、
第５図は第１図の―断面図、第６図は従来例
を示す断面図、第７図は第６図の部分側面図であ
る。３……シリンダ、６……円錐状の孔部、７……
オリフイス、９……針弁、１０……テーパ部、１
１……筒状部、１２……ピストン、１６……燃料
旋回スリツト。 FIG. 1 is a sectional view showing an embodiment of the present invention;
Figure 2 is a partially enlarged view of Figure 1, Figure 3 is a sectional view of Figure 1, Figure 4 is a sectional view of Figure 1,
5 is a cross-sectional view of FIG. 1, FIG. 6 is a cross-sectional view of a conventional example, and FIG. 7 is a partial side view of FIG. 6. 3... Cylinder, 6... Conical hole, 7...
Orifice, 9...needle valve, 10...tapered part, 1
1... Cylindrical part, 12... Piston, 16... Fuel swirl slit.

Claims

[Scope of utility model registration request]

A piston is installed inside the nozzle body, and the tapered part at the tip of the needle valve extends from the tip of the piston.
It is inserted into an orifice formed in series with a tapered conical hole at the tip of the nozzle body, and the tapered part at the tip of the slanted valve and the cylinder at the base end are inserted from the fuel reservoir to the inner peripheral surface of the conical hole. What is claimed is: 1. A fuel injection valve characterized in that a fuel swirl slit is formed that opens diagonally toward the vicinity of a boundary with a shaped portion, and the fuel pressure of a fuel reservoir is applied to a piston in a direction in which a needle valve opens.