JPS63189713A - Ignition device - Google Patents

Abstract

PURPOSE:To provide a stable ignition characteristic by a method wherein a square part of a glass section is received by an electrode fixing element so as to cover a shape of the glass and the other electrode fixing element presses a portion of a circular section of the glass. CONSTITUTION:Two ignition electrodes 13 are fixed by electrode fixing elements (A)14 and (B)15 having two parallel V-shaped grooves in such a manner as orthogonal lines of the square sections of glass members 12 are perpendicular to a plane where the two ignition electrodes 13 have longitudinal center lines of the two glass members 12, so that a size between the two ignition electrodes 13 is always constant and since the electrode fixing member (A)14 receives the square section of the glass member 12, the ignition electrode 13 is not rotated. Since the electrode fixing member (B)15 presses the part (a) of the glass 12, if the ignition electrode 13 is displaced in a longitudinal direction, the electrode fixing member (B)15 may abut against the part (b) of the glass 12 and is not moved. Due to this arrangement, a mere fixing of the two ignition electrodes 13 with the electrode fixing members 14 and 15 and fixing to a nozzle holder 17 enables an easy accurate setting of positional relation between the extremity end sizes of the two ignition electrode rods 11 and further enables a stable ignition to be performed.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an ignition device for a burner installed in a small household petroleum dispenser.

BACKGROUND ART A conventional ignition device will be explained. FIG. 4 shows a conventional example, which is an ignition device attached to a gun type burner.

1 is a nozzle that sprays fuel, and 2 is a stabilizer that is provided in front of the nozzle 1 and has a passage hole in the center and a plurality of cut and raised blades on the outside. Reference numeral 3 denotes an ignition electrode consisting of an insulator 4 with a round cross section and an ignition electrode rod 6, and 6 and 7 are polarization fixing fittings for holding the two ignition electrodes at an appropriate interval. A nozzle holder 8 holds the nozzle 1 and the ignition electrode 3.

The two ignition electrodes 3 are fixed with two electrode fixing fittings 6 and 7, with the round insulator 4 portion sandwiched from both sides, and screws 9.
Further, it is fixed to the nozzle holder 8 with screws 10.

Problems to be Solved by the Invention Regarding the ignitability of gun-type burners, the position of the tips of the two ignition electrode rods 6 and the positional relationship with the nozzle 1 are important. If the ignition electrode rod 6 deviates significantly, an ignition abnormality occurs in which the oil spray is not ignited during ignition or an ignition delay occurs.

In the conventional configuration of the ignition device, the relationship between the nozzle 1 and the tips of the two ignition electrode rods 6 is the same as the way in which the two ignition electrodes 3 are screwed together with the electrode fixing fittings 6 and 7. It's done. Moreover, since the insulator 4 has a round cross section, it is easy to rotate in the circumferential direction, and in contrast to the electrode fixing fittings 6 and 7, the insulator 4 is also easy to move in the longitudinal direction. In order to accurately measure the dimensions of the tip of the rod 6, careful attention was required when assembling the electrodes, and assembly was difficult.

In view of the above-mentioned problems, the present invention prevents the ignition electrodes from rotating or shifting in the longitudinal direction when fixing the two ignition electrodes with electrode fixing fittings, and adjusts the tip dimensions of the nozzle and the two ignition electrode rods. This makes it easier to assemble for discharge and stabilizes ignitability.

Means for Solving the Problems In order to solve the above problems, the present invention provides two ignition electrodes consisting of an insulator and an ignition electrode rod each having a round section and a square section in the longitudinal direction; The ignition electrode is sandwiched from both sides, and two polarization fixing fittings are provided for fixing the two ignition electrodes in parallel at an appropriate interval, and one of the electrode fixing fittings holds the square part of the insulator cross section in the shape of the insulator. , the other electrode fitting is designed to hold down the round section of the insulator.

Function The present invention prevents the ignition electrode from rotating by making the cross section of the insulator at the part fixed by the electrode fixing fitting square with the above-described configuration, and also, with respect to the longitudinal direction of the insulator, There is a part with a round cross section and a diameter smaller than one side of the square between the parts with a square cross section, and one side of the electrode fixing fitting holds this round part, so the ignition electrode is placed in the longitudinal direction of the metal fitting. Both ends hit the insulator with a square cross section to prevent it from moving, making it easy to position the ignition electrodes when fixing the two ignition electrodes with electrode fixing fittings, and ensuring stable ignitability.

EXAMPLE Hereinafter, an ignition device for a gun type burner according to an example of the present invention will be described with reference to the drawings.

FIG. 1 shows a side view of an ignition device for a gun-type burner in one embodiment of the present invention. In FIG. 1, 11 is an ignition electrode, 12 is an insulator, and 13 is an ignition electrode 11 and an insulator 12.
14 is an electrode fixing fitting (4), 15 is an electrode fixing fitting (B), 16 is a nozzle for fuel spraying, 17 is an electrode fixing fitting (A) 14° (B) 16, and a nozzle for holding the nozzle. The holder 18 is a stabilizer equipped with swirl vanes. 19 are polarization fixtures (A), 14 (B
) 15 fixing screws, 20 is electrode fixing metal fitting (A) 1
4. (B) 1 This is a fixing screw that fixes B to the nozzle holder 17.

FIG. 2 shows the shape of the insulator 12. The insulator 12 has a section a having a round cross section and a section b on both sides thereof having a square cross section and one side of which is equal to or larger than the diameter of the round section a.

FIG. 3 shows the A-B-C-D cross section of FIG. 1.

In order to keep the two ignition cables 13 parallel and at an appropriate distance, one is fitted with an electrode fixing fitting (A) 14 having two V-shaped parallel grooves, as shown in FIG. and apply it to the b part of the insulator 12, and also connect the two parallel Vs from the other side.
Hold down part a of the insulator 12, which has a round cross section, with the electrode fixing fitting @16 having a letter-shaped groove, and attach the polarizing fixing fitting cA)14,
Fix @1s with two fixing screws 19. Two ignition electrodes 13 and electrode fixing fittings ^14. (B) 16 is fixed to the nozzle holder 17 with a fixing screw 2o.

The fuel sprayed from the nozzle 16 is ignited by the discharge energy between the combustion air sent to the rear of the nozzle 16 and the two ignition electrodes 11 fixed to the nozzle holder 17, and is maintained by the stabilizer 18. Fire.

As described above, according to this embodiment, the two ignition electrodes 13 are arranged so that the diagonal line of the square of the cross section of the insulator 12 is perpendicular to the plane that shares the longitudinal center line of the two insulators 12. Since it is fixed with electrode fixing fittings (A) 1a and @1s having two parallel grooves in the shape of a 7, the dimension between the two ignition electrodes 13 is always constant, and the electrode Since the fixing metal fitting 414 receives the square cross section of the insulator 12, the ignition electrode 13 does not rotate.

Furthermore, since the electrode fixing fitting (5) 16 holds down the a part of the insulator 12, if the ignition electrode 13 tries to shift in the longitudinal direction, the electrode fixing fitting (B) 1s will hit the 5th part of the insulator 12. , not moving.

Therefore, the two ignition electrodes 13 are attached to the electrode fixing metal A (A).
141(B)15-? ? By simply fixing it to the nozzle holter 17, the positional relationship between the nozzle 16 and the tip dimensions of the two ignition electrode rods 11 can be easily and precisely determined.
It is possible to achieve more stable ignitability.

Effects of the Invention As described above, the present invention provides an ignition device consisting of an insulator and an ignition electrode rod, which has a round section in the longitudinal direction and a section on both sides of which has a square section and a side larger than the diameter of the round section. The two electrodes are positioned on a plane that shares the longitudinal center line of the two insulators so that the diagonal of the square of the insulator cross section is perpendicular to the plane, and the square part of the insulator cross section is shaped like an insulator. By holding the electrode fixing metal fittings like this and holding down the round cross section of the insulator with the other electrode fitting, you can simply fix the two ignition electrodes with the electrode fixing metal fittings and fix them to the nozzle holter. , the positional relationship between the nozzle and the tip dimensions of the two ignition electrodes can be easily and accurately determined.
It is possible to achieve more stable ignitability.

[Brief explanation of the drawing]

A side view showing the shape of the insulator, Figure 2 (to) is a front view of the same,
FIG. 3 is a sectional view taken along the line A-B-CD in FIG. 1, and FIG. 4 is a perspective view of a conventional ignition device. 11...Ignition electrode, 12...Insulator,
13...Ignition electrode, 14...Electrode fixing fitting^, 16...Electrode fixing fitting (B). Name of agent: Patent attorney Toshio Nakao and 1 other person
--All, fire electrode 12-insulator 13-technique, large electrode 14-electrode fixing fitting (A) Fig. 1 /S-electrode 4 north fixing fitting (δ)
Figure 2 (A > CB) Figure 43

Claims (1)

[Claims] Two ignition electrodes consisting of an insulator and an ignition electrode rod each having a round section and a square section in the longitudinal direction, the ignition electrodes being sandwiched from both sides, and the two ignition electrodes being arranged in parallel at appropriate intervals. It is equipped with two electrode fixing fittings to fix the insulator, and one electrode fixing fitting receives the square part of the insulator's cross section so that it matches the shape of the insulator, and the other electrode fitting holds the round part of the insulator cross section. Features an ignition device.