JPS6199671U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is a plan sectional view and a front sectional view showing the combustion chamber and the injection direction of the jet, Fig. 2 is a front sectional view and a plan sectional view of the scavenging hole, Fig. 3 is a layout of the nozzle hole, and Fig. 4 is a FIG. 5 is an explanatory diagram of the nozzle hole arrangement of the spherical nozzle, and FIG. 5 is a half-plane sectional view and a half-normal sectional view in the injection direction of the present invention.

Amendment April 30, 1980 The brief description of the drawing is amended as follows. At the end of the column for a brief explanation of the drawings, it is stated that ``Fig.
The figure shows the nozzle layout of a conventional nozzle. ” is added. From Figure 2, Figure 5 has been corrected as shown in the attached figure, and Figures 6 and 7 have been added. *Additional/November 5, 1986 The name of the invention is amended as follows. Title of the invention Fuel valve nozzle for internal combustion engine The scope of the utility model registration claim and the brief description of the drawings are amended as follows.

[Claim for Utility Model Registration] A scavenging vortex that is press-fitted from the scavenging hole at the bottom of the cylinder of an internal combustion engine and swirls around the cylinder axis, and a line connecting the centers of two spherical nozzles located symmetrically around the cylinder cover. Project the intersection point A and the tangent point B between the tangential line formed by the center of the sphere of the nozzle onto the top surface 3 of the piston crown, and find two perpendicular points on the tangential line formed by the line connecting the centers of the spheres of the two nozzles and the center of the sphere of the nozzle. Two upper and lower nozzle holes are provided on the line where the surface touches the nozzle spherical surface, and the center line is connected to the center of the sphere, and the injection direction of the two inner nozzle holes is the intersection point A, and the injection direction of the outer nozzle hole is the contact point B. A fuel valve nozzle in which the injection angle of two upper and lower nozzle holes on the same line is 18°, the vertical angle of the injection direction of the two upper nozzle holes is greater than or equal to the nozzle installation angle θ, and the horizontal angle is arbitrarily adjusted .

[Brief explanation of the drawings] Fig. 1 is a half-plane sectional view and a front sectional view showing the jet arrangement and related curves in the combustion chamber, Fig. 2 is a front sectional view and a plan sectional view of the scavenging hole arrangement, and Fig. 3 is a Figure 4 is a front view and cross-sectional view of the spherical jet nozzle, a cross-sectional view of the nozzle, a diagram showing an example of the present invention, and Figure 6 is a diagram showing the layout of the nozzle and jet flow used in the performance test. .

Claims (1)

[Scope of utility model registration request] The intersection point A of the line connecting the scavenging vortex that is press-fitted from the scavenging hole at the bottom of the cylinder of an internal combustion engine and swirls around the cylinder axis, the center of the spheres of two nozzles at target positions around the cylinder cover, and the center of the spheres of the nozzles. Project the contact point B of the tangential line formed by Provide two nozzle holes, upper and lower, and connect the center line with the center of the sphere.
The injection direction of the two lower inner nozzle holes is the intersection point A, the injection direction of the outer nozzle hole is the contact point B, and the injection direction of the two upper nozzle holes is the injection angle with the lower nozzle hole which is on the same line.
A fuel valve nozzle that injects fuel with a 180° jet cone angle.