JPH0429206Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention relates to a kerosene burner that is rod-shaped and portable.

(Prior Art) Conventionally, rod-shaped kerosene burners have been known for use in weeding, snow removal, and the like.

This kerosene burner has a fuel tank at the rear end of the cylinder, an injection nozzle inside the front end of the cylinder, and a spirally wound fuel pipe connecting the fuel tank and the injection nozzle in front of the injection nozzle. With a structure in which a curved portion is arranged, the combustion flame formed in front of the injection nozzle heats the fuel within the spirally wound portion, so that combustion can continue.

(Problem that the invention aims to solve) As mentioned above, once this kerosene burner starts combustion, it can continue burning using the heat of its own flame, but it requires a separate preheating source when igniting. There was a problem.

The preheating source used was solid fuel, which is normally used in camps.

(Means for Solving the Problems) Therefore, this invention has a structure in which the spirally wound portion can be heated with a flame of liquefied gas, so that preheating can be easily performed.

That is, the kerosene burner of this invention has a spirally wound part of the fuel pipe connecting the fuel tank and the injection nozzle in front of the injection nozzle installed inside the cylinder. A gas nozzle is installed between the part and the injection nozzle,
A liquefied gas cylinder and a spark plug are provided for the gas nozzle, and the gas nozzle has a plurality of small holes for discharging gas arranged in an annular shape so as to face the spirally wound portion. A mounting cylindrical body communicating with the small hole is fixedly installed through the cylindrical body, and the liquefied gas cylinder and the spark plug are integrated, and the discharge pipe of the liquefied gas cylinder is inserted into the mounting cylindrical body of the gas nozzle. It is said that it is possible to escape,
Further, in the inserted state, the tip of the spark plug is exposed to one side of the small hole of the gas nozzle through the opening of the cylinder.

(Function) According to the kerosene burner of this invention, the combustion gas in the liquefied gas cylinder can be injected from the gas nozzle and ignited by the spark plug to preheat the spirally wound portion. Moreover, after the preheating of the spirally wound portion is completed and the kerosene fuel is ignited, the liquefied gas cylinder and the spark plug can be removed.

(Example) Hereinafter, an example of this invention will be described with reference to the drawings.

As shown in FIGS. 1 and 2, this kerosene burner uses the rear end side (right side in the figure) of a cylindrical body as a fuel tank 2, and uses a pressurizing pump 3 installed at the rear end to fill the fuel tank 2. The combustion section is located inside the front end side (left side in the figure) of the cylinder 1, and a fuel pipe 5 connected to the fuel tank 2 via a valve 4 is connected to the front end of the cylinder 1. The spirally wound portion 6 is used as a preheating portion, and an injection nozzle 7 connected to the tip of the fuel pipe 5 is arranged behind the spirally wound portion 6.

A gas nozzle 8 is provided between the spirally wound portion 6 and the injection nozzle 7, and a liquefied gas cylinder 9 and a spark plug 10 are detachably attached to the gas nozzle 8.

The gas nozzle 8 has a large diameter short pipe 12 fitted on the outside of one side of a small diameter long pipe 11 to form a gas chamber 13 between the two pipes 11 and 12, and a small hole 14 in the front wall of the gas chamber 13. , 14 (see Fig. 3) are bored along an annular shape, and the cylinder body is formed by a female screw cylinder 15 fixed to the side wall of the large-diameter short pipe 12, a screw cylinder 16, and a nut 17. It is fixed at 1. That is, the screw tube 16 serves as a mounting tube for attaching the gas nozzle 8 to the inside of the tube 1.

A discharge pipe 1 provided below the liquefied gas cylinder 9
8 is formed to be able to be inserted and removed inside the screw tube 16, and when the discharge tube 18 is inserted into the screw tube 16, a spark plug 10 integrally provided in the liquefied gas cylinder 9 is inserted.
The tip enters the cylindrical body 1 through an opening 20 formed in the cylindrical body 1, and faces one side of the small holes 14, 14. In the figure, 21 is a piezoelectric switch,
22 is an opening/closing valve for the liquefied gas cylinder 9, and 23 is a stopper for replenishing the liquefied gas.

The operating rod 24 of the valve 4 protrudes from the cylinder 1 to the outside, and the base end of a lever 25 is fixed to this portion, so that the valve 4 can be opened and closed by rotating the lever 25. ing. In the figure, reference numeral 26 denotes a fixing band fitted on the outer side of the rear end of the cylindrical body 1, to which a shoulder belt (not shown) can be connected.

Next, a description will be given of how the kerosene burner configured as described above is ignited.

In preparation, a required amount of kerosene is filled into the fuel tank 2, and the inside of the fuel tank 2 is pressurized via the pressure pump 3. Valve 4 is closed.

Next, the on-off valve 22 of the liquefied gas cylinder 9 is opened to release the vaporized liquefied gas from the gas nozzle 8, and when ignited via the piezoelectric switch 21, ignition occurs in front of the gas nozzle 8, and as a result, the annular winding The bending section 6 is preheated.

After the specified preheating time (40 to 80 seconds) has passed,
When the valve 4 is opened via the lever 25, the kerosene in the fuel tank 2 flows out through the fuel pipe 5 and is heated by the preheated spiral winding 6, resulting in a mist from the injection nozzle 7. Kerosene gas is injected.

Since the mist of kerosene gas is ignited by the fire formed in front of the gas nozzle 8, a flame is formed at the tip of the cylindrical body 1 due to the combustion of the kerosene. Since the spirally wound portion 6 is heated by the flame caused by the combustion of the kerosene and the combustion continues, the flame of the liquefied gas formed for preheating becomes unnecessary.

Therefore, the on-off valve 22 of the liquefied gas cylinder 9 is closed to extinguish the liquefied gas flame, and the discharge pipe 1
The liquefied gas cylinder 9 and the spark plug 10 are removed from the cylinder 1 by pulling out the cylinder 8 from the cylinder 16. In this state, weeding, snow removal, etc. can be carried out using the flame formed at the tip of the cylindrical body 1.

When the work is finished and the fire is extinguished, the lever 25 can be rotated to close the valve 4.

(Effects of the invention) As explained above, according to this invention, a gas nozzle is installed behind the spirally wound part that constitutes a kerosene burner, and a liquefied gas cylinder and a spark plug can be attached and detached from the gas nozzle. Since I installed it,
without the need for a preheating source like solid fuel,
It has the effect of being easy to ignite.

In addition, the gas nozzle has a plurality of small holes arranged in an annular manner for releasing gas, facing the spirally wound portion, making it possible to preheat the spirally wound portion evenly and efficiently. This has the effect of shortening the preheating time.

Furthermore, the liquefied gas cylinder and the spark plug are integrated so that the discharge pipe of the liquefied gas cylinder can be connected directly to the mounting cylinder of the gas nozzle, and the tip of the ignition plug faces one side of the small hole of the gas nozzle due to the connection. As a result, there is no need to install piping for liquefied gas and wiring for a spark plug inside the cylinder, which has the effect of avoiding complication of the structure and an increase in weight.

[Brief explanation of drawings]

Fig. 1 is a perspective view of an embodiment of this invention, Fig. 2 is a partially enlarged sectional view of the embodiment, Fig. 3 is an enlarged left side view of the embodiment, and Fig. 4 is an enlarged right side view of the embodiment. The top view and FIG. 5 are also partially enlarged plan views of the embodiment. DESCRIPTION OF SYMBOLS 1... Cylindrical body, 2... Fuel tank, 4... Valve, 5... Combustion pipe, 6... Spiral winding part, 7
... Injection nozzle, 8 ... Gas nozzle, 9 ... Liquefied gas cylinder, 10 ... Spark plug.

Claims (1)

[Scope of utility model registration request] In a kerosene burner in which a spirally wound part of the fuel pipe connecting the fuel tank and the injection nozzle is arranged in front of the injection nozzle installed inside the cylinder,
A gas nozzle is installed between the helical winding portion and the injection nozzle, and a liquefied gas cylinder and a spark plug are provided for the gas nozzle, and the gas nozzle has a plurality of small holes for releasing gas. A mounting cylinder is disposed annularly to face the spirally wound portion and communicates with the small hole, and is fixedly fixed to the cylinder, and the liquefied gas cylinder and the spark plug are integrated into one body. The discharge pipe of the liquefied gas cylinder can be inserted into and removed from the mounting cylinder of the gas nozzle, and in the inserted state, the tip of the spark plug passes through the opening of the cylinder and enters one of the small holes of the gas nozzle. A kerosene burner characterized by being placed on the side.