JPH08600Y2 - Liquid fuel combustion device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an improvement of a liquid fuel combustion apparatus that guides liquid fuel stored in a cartridge tank to a vaporizer and burns it.

[Conventional technology]

FIG. 5 is a sectional view showing a conventional liquid fuel combustion apparatus of this type, in which 1 is a vaporizer, 2 is a vaporization chamber, 3 is a throat,
4 is a preheater, 5 is an oil supply pipe, 6 is a jet nozzle, 6a is a nozzle hole of the jet nozzle 6, 7 is a communication pipe connecting the vaporization chamber 2 and the jet nozzle 6, 8 is a needle pipe, 9 is a needle, 10 is Solenoid valve, 11 is a valve, 12 is a thermistor for temperature detection of the carburetor 1, 13 is an air intake hole for taking in primary air, 14 is an oil feed pipe, 15 is an oil supply pump, 16 is an oil pan, 17 is a cartridge tank, 18 Is a filler cap of the cartridge tank 17, 19 is a cap for opening and closing the lid of the filler cap 18,
20 is a heat shield plate, 21 is a combustion cylinder, 22 is a carburetor cover surrounding the carburetor 1, 23 is packing, 24 is a carburetor mounting leg that supports the carburetor 1, 25 wind tunnel, 26 is a blower, 27 is a flame A perforated plate, 28 is a flame, 29 is a combustion gas, and 30 is a casing.

 Next, the operation will be described.

When the preheater 4 is energized, the vaporizer 1 is heated,
When the temperature rises to the temperature required for vaporization, the operation is started by the signal of the thermistor 12, and the fuel pump 15 causes the fuel to flow from the oil pan 16 through the oil feed pipe 14 into the vaporization chamber 2.

After the vaporization chamber 2 is sufficiently filled with the vaporized gas, the electromagnetic valve 10 is opened, and the fuel gas is ejected from the nozzle hole 6a of the ejection nozzle 6. At this time, due to the ejector effect of the fuel gas,
A fixed amount of primary air, which is determined by the nozzle hole diameter and the throat diameter, is sucked from the air intake 13 to form an air-fuel mixture having a constant primary air ratio. This air-fuel mixture is ejected from the flame holes of the flame hole plate 27 and is ignited by an appropriate ignition source to form a flame 28.

Combustion gas 29 mixes with the air sent by blower 26 at the point of exiting combustion tube 21, becomes warm air, passes through wind tunnel 25, and is discharged forward from a warm air outlet (not shown).

In addition, the same amount of fuel as the fuel used by combustion,
The oil is supplied to the oil tray 16 from the cartridge tank 17.

This is because the mouth of the supply port cap 18 is opened by the mouthpiece 19 provided with a pin in the center, and when the oil level in the oil pan 16 is lowered from this mouth, air flows into the cartridge tank 17 and the fuel inside This is because the oil flows out to the oil receiving tray 16 and the oil level rises, and when the oil level reaches this mouth, air does not enter inside this time and the oil level becomes constant.

The cartridge tank 17 is placed on the oil receiving tray 16, but is shielded from the hot air in the wind tunnel 25 by the heat shield plate 20 which also serves as a guide at the time of taking in and out.

[Problems to be solved by the device]

Since the conventional liquid fuel combustion apparatus is configured as described above, in the unlikely event that the fuel is left in the cartridge tank 17, the oil pan 16 is stored sideways over with the fuel remaining in the cartridge tank 17 at the time of storage during the off season. And the fuel is the heat shield 20 and the oil pan
Fuel flows into the carburetor mounting leg 24 and the carburetor cover 22 through the gap between the fuel cell 16 and the fuel, and the packing 23 and the like leak fuel. Without noticing this, the fuel impregnated when used at the time of the next season was evaporated by the heat, and there was a risk that it could ignite and lead to a burnout accident.

The present invention has been made to solve the above problems, and an object thereof is to obtain a safe combustion device that does not cause a burnout accident or the like even when it is laid sideways in the above state.

[Means for solving the problem]

The liquid fuel combustion apparatus according to the present invention is located between an oil tray and a carburetor mounting leg, is wider than the carburetor mounting leg, and has a gutter shape having an oil cut portion bent toward the anti-oil tray at both front and rear ends thereof. It is provided with an oil receiving plate.

[Action]

In the liquid fuel combustion apparatus according to the present invention, even if the fuel tray is laid down sideways, the fuel flowing from the cartridge tank and the oil tray flows down onto the oil receiving plate, and the fuel is formed into a trough shape. Therefore, it will only flow out from the oil draining parts on both ends. Therefore, fuel is not applied to the carburetor mounting leg, the carburetor cover, the packing, and the like.

〔Example〕

An embodiment of the present invention will be described below with reference to FIG.

In FIG. 1, 31 is an oil receiving plate, which has a gutter shape with its upper end bent to the upper surface side of the oil receiving plate so as to cover the left outer surface of the oil receiving plate and the gap between the oil receiving plate 16 and the heat shield plate 20. This oil receiving plate 31 is long in the front-rear direction of the main body, and has a carburetor mounting leg 24 and a carburetor cover 22.
It extends to the position where it covers.

The oil receiving plate 31 is fixed to the bottom plate 32 and is located between the oil receiving plate 16 and the carburetor mounting leg 24. Further, at both ends in the longitudinal direction of the oil receiving plate 31, the oil draining portion bent to the side opposite to the oil receiving tray 16 is formed.
33 are provided.

FIG. 2 is a perspective view showing the oil receiving plate. In FIGS. 3 and 4, 34 is a packing box and 35 is a cushioning material.

 Next, the operation of the configuration of the above embodiment will be described.

The operation up to the normal operating state is exactly the same as the conventional one. The problem is the state of storage of the combustion device. Originally, this type of combustion device uses all of the fuel in the cartridge tank 17 and the oil pan 16 at the time of season off, or extracts the fuel and transfers it to another container, and then the packaging box 34 is emptied. It is common to store in. Further, even in the case of storage in the packaging box 34, it is usually placed in a horizontal state of the main body, and even if it is laid down sideways, it is often laid down in the front-rear direction.

Therefore, although it is rare, the fuel remains in the cartridge tank 17 and the oil pan 16 and the oil pan 16
The fuel spills from the oil pan 16 only when the two conditions are stored such that the left side is faced down so that the upper side is on the side and the fuel is spilled from the oil tray 16, and the carburetor mounting leg 24 and the carburetor cover 2
There was a risk that it would flow into the packing 25 side and catch fire when used in the next season.

In the present embodiment, even in such a case, the fuel flowing out from the cartridge tank 17 and the oil receiving tray 16 flows down onto the oil receiving tray 31, and as shown in FIGS. 3 and 4, a trough-shaped oil receiving plate. Since the fuel flows from the oil draining portions 33 provided at both ends to the front portion in the main body and the rear portion in the main body, the fuel does not drip into the carburetor portion substantially in the center of the main body.

Therefore, when used in the next season on, it is possible to prevent from causing a burnout accident or the like due to this.

In the above embodiment, the oil receiving plate 31 is installed as a separate component between the oil receiving tray 16 and the carburetor 22, but it may be integrated with existing components.

That is, the lower part of the heat shield plate 20 may be extended so as to cover the upper surface and the left side surface of the oil pan 16. In short, if the oil receiving plate 31 is formed so as to cover the carburetor cover 22 side of the oil receiving tray 16, the same effect can be obtained.

[Effect of device]

As described above, according to the present invention, even if the liquid fuel in the oil pan flows out when the oil pan is stored sideways with the oil pan side facing up, the front and rear sides of the main body are protected by the oil pan. Since the carburetor will not be spilled over and fuel will not be applied to the carburetor part, eliminating the risk that the spilled liquid fuel will seep into the carburetor part and ignite during the next use to develop into a burnout accident. be able to.

[Brief description of drawings]

FIG. 1 is a sectional view of a liquid fuel combustion apparatus according to an embodiment of the present invention, FIG. 2 is a perspective view of an oil receiving plate of the present invention, and FIGS. 3 and 4 are fuels during storage of the apparatus of the present invention. FIG. 5 is an explanatory view showing an outflow state, and FIG. 5 is a sectional view of the conventional device. In the figure, 1 is a vaporizer, 16 is an oil tray, 17 is a cartridge tank, 22 is a vaporizer cover, 231 is an oil receiving plate, and 33 is an oil draining section. The same reference numerals in the drawings indicate the same or corresponding parts.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Toshikazu Terauchi 800 Iwamatsu, Oshima-cho, Nitta-gun, Gunma Sanryo Electric Co., Ltd.Gunma Factory (72) Yu Moshioka 800 Iwamatsu, Ojima-cho, Nitta-gun, Gunma Address: Sanryo Electric Co., Ltd. Gunma Manufacturing Co., Ltd. (72) Fumiyoshi Futami, 800, Iwamatsu, Oshima-cho, Nitta-gun, Gunma Prefecture Sanryo Electric Engineering Co., Ltd., Tokyo Office Gunma Branch (56) References (JP, Y2)

Claims (1)

[Scope of utility model registration request] 1. A cartridge tank for storing liquid fuel, an oil pan for storing a fixed amount of liquid fuel flowing out from the cartridge tank, a vaporizer for heating and vaporizing the liquid fuel sent from the oil pan, and a vaporizer for the vaporizer. A liquid fuel combustion apparatus having a carburetor cover surrounding the carburetor and a carburetor mounting leg that supports the carburetor, wherein the liquid fuel combustion device is located between the oil tray and the carburetor mounting leg and is wider than the carburetor mounting leg and its front and rear portions. A liquid fuel combustion apparatus, characterized in that a trough-shaped oil receiving plate having oil cut-off portions that are bent in the direction opposite to the oil receiving tray is provided at both ends.