JPH06123427A - Burner device for cigarette lighter - Google Patents

Abstract

PURPOSE:To provide a burner device capable of igniting a dispersion flame while the flame is being applied as a pilot flame for a premixed flame and the dispersion flame and further capable of supplying a sufficient amount of air for the dispersion combustion as well as for continuing a stable dispersion combustion. CONSTITUTION:Two gas communication holes are formed at a manifold 10 connected to a fuel tank 3 through an opening or closing valve 7. A burner nozzle means for premixed flame is connected to a first gas communication hole and a burner nozzle means for a dispersion flame is connected to a second gas communication hole, respectively. A combustion cylinder 28 for a premixed flame is connected to an upper part of the burner means for the premixed flame. A combustion cylinder 31 for the dispersion flame having the burner means 37 for the dispersion flame is arranged near a side part of the combustion cylinder 28 for the premixed flame. At least a part of each of both combustion cylinders is communicated from each other and then a bottom part of the combustion cylinder 31 for the dispersion flame is formed with an air intake port 35.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has two modes of combustion, premixed combustion and diffusion combustion, and uses premixed combustion as a pilot flame for ignition of diffusion combustion. The present invention relates to a burner device for a smoking lighter that is ignited.

[0002]

2. Description of the Related Art Conventionally, the most common type of combustion used in smoking lighters is to ignite fuel gas by ejecting it from a burner nozzle connected to a combustion storage tank, and the air required for combustion is a ignited flame. It is a diffusion combustion that is taken in from the outer periphery of, and the diffusion flame that is formed is red and can be easily seen even in the daytime.

On the other hand, in recent years, a lighter using a premixed flame has been proposed in which air and fuel gas are mixed in advance before combustion is started in the burner nozzle and the premixed mixture is ignited and burned in the burner nozzle. It has been put to practical use.
The premixed flame is a mixture of air with fuel gas in advance, has a characteristic that the flow velocity is higher than that of a diffusion flame and is hard to blow out, and it is not necessary to take in air from the outer periphery of the flame during the combustion process. As a result of being able to form a flame inside the combustion cylinder with a high windbreak function, it has the advantage of providing a wind-resistant lighter, but on the other hand, it becomes a colorless flame that is close to complete combustion, making it difficult to see, especially in the daytime, and smoking. There was a drawback that it was inconvenient to ignite.

Therefore, there has been proposed one in which these two types of combustion types are incorporated in a single lighter, which is disclosed, for example, in Japanese Patent Laid-Open No. 3-186114. The lighter disclosed in Japanese Patent Laid-Open No. 3-186114 intends to use a premixed flame as a pilot flame for igniting a diffusion flame, and two flames are simultaneously formed. , Ignition of cigarettes is done by diffusion flame. However, in this known lighter, since the burner nozzle for premixed combustion and the burner nozzle for diffusion combustion are coaxially positioned above and below in a single combustion cylinder, the supply of air for diffusion combustion is performed. However, there was a drawback that the diffusion flame was blown out on the way, or the combustion became unstable.

[0005]

The present invention makes it possible to ignite a diffusion flame as a pilot flame of a premixed flame and a diffusion flame, while supplying sufficient air for diffusion combustion to achieve stable diffusion. It is intended to provide a burner device capable of continuing combustion.

[0006]

In order to solve the above-mentioned problems, the means adopted by the present invention is to form two gas passage holes in a manifold connected to a fuel tank via an opening / closing valve, Burner nozzle means for premixed flame in the gas passage,
Diffusion flame burner nozzle means are respectively connected to the second gas passages, premixed flame combustion cylinders are connected to the upper portion of the premixed flame burner means, and adjacent to the side portions of the premixed flame combustion cylinders. A diffusion flame combustion cylinder for arranging the diffusion flame burner means is arranged, at least a part of both combustion cylinders are communicated with each other, and an air intake is formed at the bottom of the diffusion flame combustion cylinder. Characterize.

[0007]

[Operation] A combustion tube for diffusion flame is placed adjacent to the side of the combustion tube where the premixed flame is formed, and both combustion tubes are connected to each other at the upper part to ignite the diffusion flame by the premixed flame. In addition, an air intake is formed at the bottom of the diffusion flame combustion cylinder so as to communicate with the outside so that the diffusion flame air is taken in.

[0008]

According to the present invention, the diffusion flame combustion cylinder is formed separately from the premixed flame combustion cylinder, and the intake of the diffusion flame air is performed from the air intake port formed in the diffusion flame combustion cylinder. Because it is done independently, the formation of diffusion flame,
The combustion can be continued stably and the formation of an unstable diffusion flame can be prevented.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described in detail below with reference to the drawings. In the figure, (1) is a lid (2)
It is a lighter casing whose upper part can be freely opened and closed, and a tank (3) for storing combustible fuel gas is inserted therein. A burner valve device (4) is arranged on one side of the tank (3) along a vertical axis, and a lower portion of the burner valve device (4) is a flow rate of fuel gas from the tank (3) to the burner nozzle. The flow rate adjusting valve (5) for adjusting the flow rate is configured, and the flow rate can be arbitrarily adjusted by the adjusting knob (6) facing the bottom surface of the lighter casing (1). Burner valve device
An opening / closing valve (7) is incorporated in substantially the center of (4). The opening / closing rod (8) of the opening / closing valve (7) is lifted to open the valve, and the fuel gas that has flowed out is opened / closed (8). Gas passage in () (9)
Through to the manifold (10). The upper part of the opening / closing rod (8) is inserted and connected to the lower part of the manifold (10). The manifold (10) has two through holes (11) (12),
The first gas through hole (11) is opened upward along the axial direction of the gas passage (9), and the burner means for premixed combustion described later is provided.
(19) is connected. The second gas passage (12) is a gas passage.
The burner means (33) for diffusion combustion is opened in the lateral direction orthogonal to (9). During the opening and closing rod (8),
A flange (13) is formed, and a lever member (1) is formed on the flange (13).
The manifold (10) is supported on the upper surface of the flange (13) while the tip of the (4) is engaged. On the other end of the lever member (14), the operating tongue hanging from the operation button (15) of the lighter.
(16) is positioned so that it can freely abut. An O-ring (17) is fitted over the opening / closing rod (8) inserted into the manifold (10) to seal the gap between the manifold (10) and the opening / closing rod (8) to prevent gas leakage. ing.

A jet block body (21) having fine jet holes (20) is fitted in the upper small diameter portion (18) of the manifold (10), and a recess (22) for receiving the jet block body (21). A burner body (23) having a lower part is connected to an upper part of the manifold (10). The burner body (23) is
(0) has a structure that is separate from that of (0), and is a mounting plate (24) made of a spring plate.
Supported by.

The burner body is located downstream of the ejection hole (20).
An air suction port (25) is opened in (23), and the negative pressure generated around the gas flow rapidly ejected from the ejection hole (20) sucks air from the outside to premix it with the fuel gas. The premixed air mixed with the sucked air further rises and is arranged so as to block the upper opening of the burner body (23).
Impinging on the air flow results in reduced flow velocity and turbulence, which further improves the mixing of air and fuel gas. In this way, the premixed gas that is considered to have a better mixed state,
Ascends from a ring-shaped passage (27) formed by knurled grooves around the diffuser (26) and flows into a large-diameter combustion tube (28) connected to the upper portion of the burner body (23). Combustion tube (2
The premixed gas flowing into the inside of 8) is directed so as to rise along the inner wall of the combustion tube (28) by the umbrella-shaped flame stabilizer (29) set up on the upper surface of the diffuser (26). A discharge electrode (30) connected to a high-voltage power supply extends in the combustion tube (28), and the spark produced by the discharge electrode (30) ignites the premixed gas in the combustion tube (28). , The flame stabilizer (29) burns stably while a premixed flame is formed.

A combustion cylinder (31) for diffusion flame is integrally formed adjacent to a side portion of the combustion cylinder (28) for premixed combustion, and both combustion cylinders (28) and (31) are lower. The half part is divided by the drawing wall (32), and the upper half part is communicated with each other by the communication opening (33). The wall (32) is integrally formed with a cylindrical portion (34) that projects into the combustion flame (31) for diffusion flame and inserts and holds the diffusion flame burner means, and the outer periphery of the cylinder portion (34). A C-shaped air inlet for diffusion combustion (35) is formed on the bottom surface of the combustion tube for diffusion flame (31) along with.

In the second gas passage (12) of the manifold (10), a burner means for diffusion flame is provided via a pipe means (36).
(37) is connected, the nozzle end (38) of the burner means (37) is inserted into the central hole (39) of the cylindrical portion (34), and extends upward.

When the opening / closing rod (8) is lifted by the lever member (14) and the opening / closing valve (7) is opened, the fuel gas in the fuel tank (3) passes through the gas passage (9) and the manifold ( 10) and a part of the gas flows through the first gas passage hole (11) and is ejected from the ejection hole (20) into the burner body (23), and the rest is discharged into the second gas passage hole (1).
2), from the pipe means (36) to the diffusion flame burner means (37)
Out of the nozzle and jets from the nozzle end (38). At this time, the ejection hole (20) acts as a throttle valve, and by appropriately setting the diameter of the ejection hole (20), the premixed flame burner means (19)
It is possible to set the optimum flow rates of the respective gases divided into the burner means (37) for the diffusion flame 7 and the diffusion flame 7. The fuel gas ejected from the nozzle end (38) burns while taking in the air flowing into the combustion tube (31) from the C-shaped air inlet (35) when ignited, and becomes a diffusion flame.

The fuel gas that has been opened in the on-off valve (7) and moved up in the gas passage (9) is diverted in the manifold (10), and the fuel gas that has been rapidly ejected from the ejection port (20) is the air suction port. (twenty five)
Premixed with the air sucked from, it flows out into the combustion tube (28) and is ignited to form a small flame premixed flame, which is placed over the upper part of the combustion tube (28) (31) While heating the catalyst wire (39) such as platinum, burner means (3
It becomes a pilot flame for igniting the fuel gas ejected from the nozzle end (38) of 7), and a large flame spread diffusion flame is created in the diffusion flame combustion tube (31), and the cigarette can be ignited. The air required for forming and continuing this diffusion flame is the air intake formed at the bottom of the diffusion flame combustion tube (31).
Since it is sufficiently supplied from (35), a stable diffusion flame can be formed and continued.

Reference numeral (40) is a piezoelectric electricity generating device arranged in parallel with the burner valve device (4) on one side of the fuel tank (3), and an operation button (15) is provided on its movable part (41). When the operation button (15) is pressed, the movable part (41) descends to operate the piezoelectric generator (40) and generate piezoelectric. The generated piezoelectricity is guided to the discharge electrode (30) through the lead wire (42) and spark-discharges with the flame stabilizer (29) of the premixed flame burner means (19). The ejection block body (21) constituting the burner means (19) for premixed flame is held by a mounting plate (24) made of a spring plate, and the piezoelectric generator (40) is held via the mounting plate (24). )
Is connected to the ground side of and is grounded.

When the operation button (15) is depressed, the piezoelectric generator (40) is activated, the lever member (14) is activated, and the open / close rod (8) is raised to open the open / close valve (7). Is opened,
The outflow of fuel gas is permitted and the gas passage (9) rises.
The fuel gas that has risen in the gas passage (9) is ejected from the ejection hole (20) to form a premixed gas, flows into the combustion tube (28), and is ignited by a discharge spark to be combusted in the combustion tube (20). Create a stable premixed flame in the flame stabilizer (29). Premixed Flame, Burning Cylinder (29)
The catalyst wire (39) made of platinum or the like arranged on the upper part of the furnace is heated and burnt out to become a pilot flame for igniting a diffusion flame. At the same time, the fuel gas flows out to the diffusion flame burner means (37), flows out from the nozzle end (38), and is ignited by the premixed flame that has become a small pilot flame and is ignited outside the combustion tube (31). Burn out to. When removing the pressing force to the operation button (15), open / close rod
(8) is closed by the elastic force of the spring attached to it, and the outflow of fuel gas stops.

[Brief description of drawings]

 Fig. 1 Overall vertical cross-section Fig. 2 Vertical cross-sectional view of essential parts Fig. 3 Exploded perspective view of essential parts Fig. 4 Plan view of combustion cylinder Fig. 4 Cross-sectional view taken along line V-V in Fig. 6 VI-VI line Sectional view along

[Explanation of symbols]

 (1) Lighter casing (2) Lid (3) Tank (4) Burner valve device (5) Flow rate adjusting valve (6) Adjustment knob (7) Open / close valve (8) Open / close rod (9) Gas passage (10) Manifold ( 11) First gas through hole (12) Second gas through hole (13) Flange (14) Lever member (15) Operation button (16) Operating tongue (17) O-ring (18) Small diameter part (19) Premix Burner means for flame (20) Jet hole (21) Jet block (22) Recess (23) Burner body (24) Mounting plate (25) Air suction port (26) Diffuser (27) Ring passage (28) Premixed flame combustion tube (29) Flame stabilizer (30) Discharge electrode (31) Diffusion flame combustion tube (32) Wall (33) Communication opening (34) Cylindrical part (35) Diffusion combustion air intake ( 36) Pipe means (37) Diffusion flame burner means (38) Nozzle end (39) Catalyst wire (40) Piezoelectric generator (41) Moving part (42) Lead wire

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[Procedure amendment]

[Submission date] June 30, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Brief description of the drawing

[Correction method] Change

[Correction content]

[Brief description of drawings]

FIG. 1 is an overall vertical sectional view

FIG. 2 is a vertical cross-sectional view of a main part

FIG. 3 is an exploded perspective view of a main part

FIG. 4 is a plan view of a combustion cylinder.

FIG. 5 is a sectional view taken along line VV of FIG.

FIG. 6 is a sectional view taken along line VI-VI of FIG.

Claims (1)

[Claims] 1. A manifold connected to a fuel tank via an opening / closing valve, wherein two gas through holes are formed, and a burner nozzle means for premixed flame is diffused into the first gas through hole and a second gas through hole. The burner nozzle means for flames are respectively connected, the combustion cylinder for premixed flame is connected to the upper portion of the burner means for premixed flame, and the burner means for diffusion flame is adjacent to the side portion of the combustion cylinder for premixed flame. Arrange the diffusion flame combustion cylinder to be arranged,
A burner device for a smoking lighter, characterized in that at least a part of both combustion cylinders are communicated with each other, and an air intake is formed in a lower portion of the diffusion flame combustion cylinder.