JPH0640657U - Nozzle device for air-mixed catalytic gas lighter - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a nozzle device that does not cause an ignition error. A large-diameter first gas passage 4 is vertically provided in a nozzle cylinder 2 made of a heat-resistant conductive material, and a main injection port 5 is provided by opening an upper peripheral wall of the first gas passage 4. A small-diameter second gas passage 6 communicating with the first gas passage 4 on the axial line is provided above the first gas passage 4. Then, an opening hand auxiliary injection port 7 is provided on the peripheral wall of the second gas passage 6, and the spiral body 3 made of a heat-resistant material is fitted to the upper end portion of the nozzle cylinder 2 so as to surround the auxiliary injection port 7. With the above configuration, the gas ejected through the auxiliary injection port 7 hits the spiral body 3 and diffuses through the gap of the spiral body 3. Therefore, if it is easily ignited, it becomes a pilot fire, and the gas ejected from the main injection port 5 is reliably ignited.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 According to the present invention, an air inlet is provided on the lower side of a gas passage, and air and gas introduced from the inlet are injected from a jet outlet provided at the upper part of the gas passage into a combustion chamber constituted by a windshield. The present invention relates to a nozzle device for an air-mixed catalytic gas lighter, in which the combustion flame is discolored by burning a gas by means of a catalyst coil arranged above the combustion chamber.

[0002]

[Prior art]

 For example, as disclosed in Japanese Utility Model Laid-Open No. 1-178453, most of them have a structure in which a gas injection port is simply provided above the gas passage.

[0003]

[Problems to be solved by the device]

 According to the conventional example, when the gas is ejected from the gas injection port through the gas passage during the ignition operation, a large amount of gas accompanied with so-called accumulated gas is ejected from the gas injection port, which results in ignition failure due to heat of vaporization. Will occur and win.

The present invention provides a nozzle device that does not cause an ignition error.

[0005]

[Means for Solving the Problems]

 A large-diameter first gas passage is vertically installed in a nozzle cylinder made of a heat-resistant conductive material, and the main injection port is opened by opening the peripheral wall of the upper end portion of the first gas passage and the upper side of the first gas passage. Is provided with a small diameter second gas passage communicating with the first gas passage on the axial line, an auxiliary injection port is provided by opening the peripheral wall of the second gas passage, and the auxiliary injection port is surrounded by a heat-resistant material. The spiral body is formed on the upper end of the nozzle cylinder.

[0006]

1 is a sectional view showing a nozzle device of an air-mixed catalytic gas lighter according to the present invention.

Reference numeral 1 denotes a nozzle material. The nozzle material 1 is configured by assembling a nozzle tube 2 made of a heat-resistant conductive material and a spiral body 3 made of a heat-resistant material to each other. The gas passage 4 is provided vertically, the peripheral wall of the upper end portion of the first gas passage 4 is opened, and the main injection port 5 is opened, and the upper side of the first gas passage 4 communicates with the first gas passage 4 in the axial direction. The second gas passage 6 having a small diameter is provided, the peripheral wall of the second gas passage 6 is opened similarly to the first gas passage 4, and the auxiliary injection port 7 is provided. 3 is fitted to the upper end of the main cylinder 2.

FIG. 8 shows a lower wall cylinder of a combustion chamber 9 made of an insulating ceramic material. The lower wall cylinder 8 is supported by a support cylinder 11 supported by a piece 10 of the lighter main box. The bottom wall 9 ′ of the combustion chamber receives the flange portion 2 ′ of the nozzle cylinder 2 penetrating from the upper side of the combustion chamber 9 to support the nozzle material 1, and the lower wall cylinder 8 below the nozzle cylinder 2. The upper part of the intermediate cylinder 12 inserted in the lower part of the intermediate cylinder 12 is screwed to support the intermediate cylinder 12 on the main cylinder 2.

Reference numeral 13 is an outer cylinder which is placed on the lower wall cylinder 8 via an earth plate 14 to form the combustion chamber 9, that is, a windshield cylinder, and the windshield cylinder 13 is made of heat-resistant transparent glass. The upper frame 15 ′ of the holding frame 15 and the lower wall cylinder 8 are sandwiched and assembled by the support member 16 of the catalyst coil 20, which is placed on the windshield cylinder 13.

Reference numeral 21 denotes an air introduction port provided on the four sides of the intermediate portion of the intermediate tube 12, and the air introduction port 21 is communicated with the first gas passage 4. Reference numeral 22 denotes a connecting cylinder that is screwed and assembled to the lower part of the intermediate cylinder 12. A rubber relay pipe attached to the upper end of the vertical cylinder leading to the combustion chamber 9 is inserted into this connecting cylinder 22 to The combustion gas ascends through the relay pipe to the gas passages 4 and 6 by the rise.

FIG. 2B shows an end of a lead wire connected to the intermediary tube 12.

Then, the voltage generated in the piezoelectric element is loaded on the intermediary cylinder 12 and the nozzle cylinder 2, and electric charges fly from the upper end of the main cylinder 2 toward the ground plate 14 as sparks. On the other hand, the fuel gas flows through the first gas passage 4 along with the air introduced into the first gas passage 4 through the air introduction port 21 and is injected through the main injection port 5, while before that, through the second gas passage 6. The gas ejected from the auxiliary injection port 7 drifts through the gap formed by the spiral body 3 on the scattering path of the sparks, ignites it, and becomes a so-called pilot fire from the main injection port 7. The emitted gas is ignited.

[0013]

[Effect of device]

 Since the present invention is configured as described above, the gas ejected through the auxiliary injection port hits the spiral body and is diffused through the gap between the spiral bodies, which easily ignites and becomes a seed flame from the main injection port. Since the jetted gas is ignited, it is possible to provide a nozzle device that does not have an ignition error.

[Brief description of drawings]

FIG. 1 is a vertical sectional view.

[Explanation of symbols]

 2 Nozzle cylinder 3 Helix 4 First gas passage 5 Main injection port 6 Second gas passage 7 Auxiliary injection port

Claims (1)

[Scope of utility model registration request] 1. A large-diameter first gas passage is vertically installed in a nozzle cylinder made of a heat-resistant conductive material, and a main injection port is opened by opening a peripheral wall of an upper end portion of the first gas passage. A small-diameter second gas passage communicating with the first gas passage on the axial line is provided above the gas passage, the peripheral wall of the second gas passage is opened to provide an auxiliary injection port, and the auxiliary injection port is surrounded. A nozzle device for an air-mixed catalytic gas lighter, in which a spiral body made of a heat-resistant material is fitted to the upper end of the nozzle cylinder.