JP2021021558A - Liquid fuel combustor - Google Patents

Abstract

To provide a liquid fuel combustor that is easy to fix a replaceable liquid fuel cartridge equipped with a cylindrical body to a liquid fuel tank.SOLUTION: A liquid fuel combustor 1 is equipped with a housing 3, a liquid fuel tank 5, and a burner assembly 7. The housing 3 is composed of a placing base 9, and a cabinet 11 installed on the placing base 9, and an oiling tank storage chamber 15 and an assembly storage chamber 17 are formed by a partition wall 13. In an opening portion 21 of the oiling tank storage chamber 15, a guide member is provided, which functions as a guide when a liquid fuel cartridge FC is stored in the oiling tank storage chamber 15, and limits the lateral movement of a rear end portion RE of a cylindrical body positioned on the opposite side to a fuel supply portion FS of the liquid fuel cartridge FC stored in the oiling tank storage chamber 15.SELECTED DRAWING: Figure 1

Description

The present invention relates to a liquid fuel combustor that burns liquid fuel in a liquid fuel tank with a burner.

In the conventional liquid fuel combustor, the liquid fuel in the storage container is transferred into a metal cartridge tank, and the liquid fuel supplied from the cartridge tank to the liquid fuel tank is burned by a burner.

Therefore, in order to save the trouble of transferring the liquid fuel from the storage container to the cartridge tank, Japanese Patent Application Laid-Open No. 2018-124051 (Patent Document 1) and Japanese Patent Application Laid-Open No. 2018-128244 (Patent Document 2) describe metal cartridges. Instead of a tank, a liquid fuel combustor that uses a liquid fuel cartridge in which a resin disposable container is prefilled with liquid fuel has been proposed.

Japanese Unexamined Patent Publication No. 2018-124051 JP-A-2018-128244

The resin liquid fuel cartridges shown in Patent Documents 1 and 2 have a cylindrical body. This is to make it usable in various liquid fuel combustors as well as household gas cylinders. However, when trying to construct a liquid fuel combustor that can use this liquid fuel cartridge by utilizing the same structure as the existing liquid fuel combustor as much as possible, the assembly storage room and the refueling tank storage room in which the burner assembly is housed and the refueling tank storage room are used. There will be a relatively large gap between the partition wall that separates the two so as to thermally insulate the fuel and the peripheral wall of the liquid fuel cartridge. If there is such a gap, when fixing the liquid fuel cartridge to the fuel inlet of the liquid fuel tank, in order to securely fit the base of the liquid fuel cartridge into the fuel inlet, the liquid fuel in the refueling tank storage chamber Careful insertion of the cartridge is required. In addition, if the fixed liquid fuel cartridge is tilted due to tilting of the liquid fuel combustor or vibration applied from the outside, and the liquid fuel cartridge gets too close to the partition wall, the temperature of the liquid fuel cartridge rises above the permissible temperature. There is also the problem of getting rid of it.

Further, when the liquid fuel cartridge is taken out from the refueling tank storage chamber, dripping may occur, and the dripping liquid fuel may fall on the upper surface of the liquid fuel tank. When this volatilizes, it also causes an odor.

It is an advantage of the inventions according to Patent Document 1 and Patent Document 2 that it is not necessary to use a metal cartridge tank by using a resin liquid fuel cartridge. However, in the conventional liquid fuel combustor, the metal cartridge tank also serves as a reinforcing material for the refueling tank storage chamber. Therefore, if the same structure as that of the existing liquid fuel combustor is adopted as it is, the refueling tank storage chamber may be deformed during transportation and the cabinet of the liquid fuel combustor may be distorted.

An object of the present invention is to provide a liquid fuel combustor in which a replaceable liquid fuel cartridge having a cylindrical body can be easily inserted into a refueling tank storage chamber.

Another object of the present invention is to provide a liquid fuel combustor in which the liquid fuel cartridge housed in the refueling tank storage chamber does not tilt and approach the partition wall.

Another object of the present invention is to provide a liquid fuel combustor in which the dripping liquid fuel does not fall onto the liquid fuel tank.

Yet another object of the present invention is to provide a liquid fuel combustor in which the cabinet is not distorted during transportation without the need for a metal cartridge tank.

The present invention targets a liquid fuel combustor including a pedestal and a housing consisting of a cabinet mounted on the pedestal, a liquid fuel tank, and a burner assembly. A refueling tank storage room and an assembly storage room are formed in the cabinet. A partition wall is provided between the refueling tank storage chamber and the assembly storage chamber so as to thermally insulate the refueling tank storage chamber and the assembly storage chamber. In the refueling tank storage chamber, a refueling tank made of a replaceable liquid fuel cartridge having a cylindrical main body is inserted and stored through an opening formed in the top plate of the cabinet. The liquid fuel tank is arranged on a stand with a fuel receiving port to which the fuel supply unit of the liquid fuel cartridge housed in the refueling tank storage chamber is fitted. The burner assembly is located in the assembly storage chamber to burn the liquid fuel in the liquid fuel tank.

The liquid fuel combustor of the present invention is arranged in the opening of the refueling tank storage chamber, serves as a guide when the liquid fuel cartridge is stored in the refueling tank storage chamber, and is a liquid fuel cartridge housed in the refueling tank storage chamber. It is provided with a guide member that restricts the lateral movement of the rear end portion of the cylindrical body located on the opposite side of the fuel supply portion. By providing such a guide member, the lateral position of the liquid fuel cartridge is fixed when the liquid fuel cartridge is stored in the refueling tank storage chamber, and the liquid fuel cartridge is positioned and fixed to a predetermined position on the liquid fuel tank. It will be easier to do. Further, after the liquid fuel cartridge is stored in the refueling tank storage chamber, the rear end portion of the cylindrical main body does not move laterally, so that the liquid fuel cartridge does not tilt and approach the partition wall.

The specific configuration of the guide member is arbitrary, but for example, a cylindrical portion into which the rear end portion of the cylindrical main body fits, and an inclined portion arranged on the cylindrical portion and converging from the opening side toward the cylindrical portion. , It may consist of a positioning portion which is continuously provided on the inclined portion and positions the guide member with respect to the opening. With this configuration, the inclined portion guides the liquid fuel cartridge to the cylindrical portion, so that the lateral position of the liquid fuel cartridge is fixed, and the liquid fuel cartridge can be easily fixed to the liquid fuel tank. Further, since the inclined portion mainly covers the liquid fuel tank, the dripping liquid fuel does not fall on the upper surface of the liquid fuel tank even if dripping occurs when the liquid fuel cartridge is removed. Further, since the refueling tank storage chamber is reinforced by such a guide member, the cabinet is not distorted during transportation even if there is no metal cartridge tank.

The guide member can be arranged in the opening of the refueling tank storage chamber by any method. For example, even if a plurality of locking structures for preventing the guide member from falling into the refueling tank storage chamber are arranged along the opening between the peripheral wall portion surrounding the partition wall and the opening of the cabinet and the guide member. Good. The guide member is fixed by the locking structure. When the guide member has a positioning portion, a plurality of locking structures may be arranged in the positioning portion.

Reinforcing ribs may be integrally formed on the positioning portion of the guide member and the back surface portion of the inclined portion so as to straddle both. In this way, the strength of the guide member can be maintained even if the inclined portion is formed to be thin.

In some conventional liquid fuel combustors, a metal cartridge tank serves as a holding member for the liquid fuel tank. Therefore, without the metal cartridge tank, the liquid fuel tank may move during transportation, and the cabinet of the liquid fuel combustor may be deformed from the inside. Therefore, in order to prevent this, the present invention may further include a pressing structure for pressing the liquid fuel tank toward the stand. The pressing member includes a contact portion that contacts the upper surface of the liquid fuel tank, an extension portion that is connected to the contact portion and extends toward the stand, and a cover provided on the stand provided at the tip of the stretch portion. It may have an engaging portion that is engaged with the engaging portion. With the engaging portion engaged to the engaged portion, the contact portion presses the liquid fuel tank toward the stand. This can prevent the liquid fuel tank from moving.

The present invention further includes a cylindrical recess that is attached to the fuel supply port and into which the front end of the cylindrical body of the liquid fuel cartridge is fitted, and a fuel discharge hole through which the liquid fuel discharged into the cylindrical recess is passed. It may be provided with an attachment. If such an attachment is provided, the liquid fuel cartridge whose lateral position is fixed can be more smoothly fixed to the liquid fuel tank.

When the attachment is provided, it is preferable that the inner diameter of the cylindrical portion of the guide member is the same as or slightly larger than the inner diameter of the cylindrical recess of the attachment. In the present specification, "slightly large" means that the difference in inner diameter dimension is within about 10 mm. In this way, the front end portion of the liquid fuel cartridge guided by the guide member is smoothly fitted in the attachment. Further, in the case of the guide member provided with the above-mentioned cylindrical portion and inclined portion, the guide member falls from the cylindrical portion toward the attachment fixed to the liquid fuel tank along the inclined portion, so that the upper surface of the liquid fuel tank Fuel does not scatter.

It is the figure which showed the state which a part (front surface) of the liquid fuel combustor of this embodiment was broken. FIG. 2 is a sectional view taken along line II-II of FIG. FIG. 3 is a sectional view taken along line III-III of FIG. It is a perspective view of the guide member 25 provided in the liquid fuel combustor 1 of this embodiment. (A) is a front view of the guide member 25, (B) is a left side view, (C) is a right side view, (D) is a plan view, (E) is a bottom view, and (F) is a rear view. .. FIG. 5 (D) is a sectional view taken along line VI-VI of FIG. 5 (D). FIG. 5 (D) is a sectional view taken along line VII-VII of FIG. 5 (D). It is a perspective view of an attachment. (A) is a front view of the pressing member 35, (B) is a left side view, (C) is a right side view, (D) is a plan view, and (E) is a bottom view. It is a perspective view of the liquid fuel combustor 1 in the state which the cabinet 11 is omitted.

Hereinafter, embodiments of the liquid fuel combustor of the present invention will be described in detail with reference to the drawings.

[overall structure]
FIG. 1 is a view showing a state in which a part (front surface) of the liquid fuel combustor of the present embodiment is broken. In FIG. 1, the refueling tank storage chamber 15 is shown in cross section including the liquid fuel cartridge FC, and the assembly storage chamber 17 is shown in a state where the cabinet 11 is broken. FIG. 2 is a sectional view taken along line II-II of FIG. 1, and FIG. 3 is a sectional view taken along line III-III of FIG.

First, in the specification of the present application, as shown in FIGS. 1 to 3, a plurality of directions are defined with respect to the liquid fuel combustor 1. That is, as shown in FIGS. 1 to 3, the left-right direction LR consisting of the left direction L and the right direction R, the front-rear direction FB consisting of the front direction F and the rear direction B, and the vertical direction UD consisting of the up direction U and the down direction D are shown in FIGS. It is defined.

The liquid fuel combustor 1 includes a housing 3, a liquid fuel tank 5, and a burner assembly 7. In the present embodiment, the liquid fuel combustor 1 is a liquid fuel cartridge FC without making a major design change to the structure of the liquid fuel combustor including a kerosene fan heater using a conventional metal cartridge tank as a refueling tank. It will be changed to a liquid fuel combustor used as a refueling tank. Therefore, the structure at the time of shipment is a structure that omits the conventional metal cartridge tank and adds a device described later.

The housing 3 includes a stand 9 and a cabinet 11 mounted on the stand 9. The cabinet 11 is provided with a pair of side wall portions 11C and 11D connecting the front wall portion 11A extending in the left-right direction LR, the rear wall portion 11B facing the front wall portion 11A, and the front wall portion 11A and the rear wall portion 11B. It is composed of a top plate 19 facing the table 9. The cabinet 11 has an opening 11E on the stand 9 side, and a plurality of abutments that are adjacent to the opening 11E and are brought into contact with a plurality of contacted portions (not shown) provided on the stand 9. It has a cabinet. It should be noted that the rising edge of the through hole forming the engaged portions 9A and 9B [see FIG. 10] to which the pressing portion 35 to be described later is engaged constitutes this contacted portion. Further, an outlet 11F (see FIG. 10) is provided in the lower region of the front wall portion 11A of the cabinet 11. Further, a blower fan F [FIG. 3] is mounted on the inner wall portion of the rear wall portion 11B, and a plurality of air holes for entering air attracted by the blower fan F are formed. The top plate 19 is formed with an opening 21 into which the liquid fuel cartridge FC is inserted. A lid 23 that closes the opening 21 is attached to one side of the opening 21 via a hinge mechanism.

A partition wall 13 is provided in the cabinet 11, and the inside of the cabinet 11 is partitioned into a refueling tank storage chamber 15 and an assembly storage chamber 17 by the partition wall 13. The partition wall 13 is continuous with the first portion 13A extending from the rear wall portion 11B of the cabinet 11 and extending in the front-rear direction FB, the second portion 13B extending in the diagonal direction continuously with the first portion 13A, and the second portion 13B. It has a third portion 13C extending in the front-rear direction FB and a fourth portion 13D extending continuously from the third portion 13C and extending to the side wall portion 11D of the cabinet 11 in the left-right direction LR. The refueling tank storage chamber 15 is thermally insulated. As shown in FIG. 2, the first portion 13A of the partition wall 13 is formed with an engaged portion 13a to which the engaging portion of the guide member 25 described later is engaged, and the fourth portion 13D is formed with an engaged portion 13a. , A screw hole 13d for fixing the guide member 25 described later is formed. The engaged portion 13a has an elongated slit shape into which a tongue piece-shaped engaging portion 41a, which will be described later, is inserted and engaged. Further, the screw hole 13d penetrates the fourth portion 13D of the partition wall 13 in the thickness direction and is aligned with the screw hole 41d (see FIG. 4) formed in the fourth portion 41D of the positioning portion 41 of the guide member 25 described later. ..

In the refueling tank storage chamber 15, a refueling tank made of a disposable resin liquid fuel cartridge FC provided with a cylindrical main body FCB is inserted through an opening 21 formed in the top plate 19 of the cabinet 11. It is stored. FIG. 1 shows a state in which the lid 23 is opened and the liquid fuel cartridge FC is stored in the refueling tank storage chamber 15. In the present embodiment, the guide member 25 described later is provided in the opening 21 of the refueling tank storage chamber 15 (see FIGS. 4 to 7).

The liquid fuel tank 5 is provided on a stand 9 with a fuel receiving port 27 into which the fuel supply unit FS of the liquid fuel cartridge FC housed in the refueling tank storage chamber 15 is fitted. In the present embodiment, the attachment 29 shown in FIG. 8 is fixed to the fuel supply port 27. The attachment 29 includes a cylindrical recess 31 into which the front end FE of the cylindrical main body FCB of the liquid fuel cartridge FC is fitted, and a fuel discharge hole 33 through which the liquid fuel discharged into the cylindrical recess 31 passes. Further, in the present embodiment, the pressing member 35 described later for fixing the liquid fuel tank 5 to the stand 9 is provided (see FIGS. 9 and 10).

The fuel supply section FS (FIG. 1) of the liquid fuel cartridge FC is provided with an on-off valve assembly VA. By fitting the liquid fuel cartridge FC into the attachment 29 fixed to the fuel inlet 27 of the liquid fuel tank 5, the on-off valve assembly VA opens, the liquid fuel cartridge FC and the liquid fuel tank 5 communicate with each other, and the liquid fuel cartridge The liquid fuel (kerosene in this embodiment) filled in the FCB of the main body of the FC moves into the liquid fuel tank 5.

The liquid fuel cartridge FC and the attachment 29 are the same as the liquid fuel cartridge and the attachment described in Japanese Patent Application No. 2018-12402 (Japanese Unexamined Patent Publication No. 2018-124051) filed earlier by the applicant of the present application. Since the liquid fuel cartridge FC and the attachment 29 have nothing to do with the gist of the present invention, further detailed description will be omitted with reference to the above patent application.

The burner assembly 7 burns the liquid fuel in the liquid fuel tank 5 arranged below the refueling tank storage chamber 15.

[Guide member]
4A and 4B are perspective views of a guide member 25 included in the liquid fuel combustor 1 of the present embodiment, FIG. 5A is a front view of the guide member 25, and FIG. 4B is a left side view. C) is a right side view, (D) is a plan view, (E) is a bottom view, and (F) is a rear view. FIG. 6 is a sectional view taken along line VI-VI of FIG. 5 (D), and FIG. 7 is a sectional view taken along line VII-VII of FIG. 5 (D).

The guide member 25 is installed in the opening 21 of the refueling tank storage chamber 15, and is formed as an integrally molded product of insulating resin. The guide member 25 is a cylindrical portion 37 into which the rear end portion RE of the cylindrical main body FCB of the liquid fuel cartridge FC is fitted, and an inclined portion that is arranged on the cylindrical portion 37 and converges from the opening 21 side toward the cylindrical portion 37. It is composed of 39 and a positioning portion 41 which is continuously provided on the inclined portion 39 and positions the guide member 25 with respect to the opening portion 21.

The positioning portion 41 has a shape that matches the contour of the peripheral wall portion of the refueling tank storage chamber 15 formed by the partition wall 13 and the cabinet 11, and is a first portion extending along the first portion 13A of the partition wall 13. 41A, a second portion 41B extending along the second portion 13B of the partition wall 13, a third portion 41C extending along the third portion 13C of the partition wall 13, and a fourth portion 13D of the partition wall 13. It has a fourth portion 41D extending, a fifth portion 41E extending along the side wall portion 11D of the cabinet 11, and a sixth portion 41F extending along the rear wall portion 11B of the cabinet 11. The first portion 41A of the positioning portion 41 is formed with a tongue piece-shaped engaging portion 41a that engages with the elongated slit-shaped engaged portion 13a provided on the partition wall 13, and the fourth portion 41D is formed. , The screw hole 41d is formed at a position consistent with the screw hole 13d. The fifth portion 41E and the sixth portion 41F are provided along the protrusion 41e and the rear wall portion 11B that project outward and are locked to the protrusion 11d provided on the side wall portion 11D of the cabinet 11, respectively. A protruding portion 41f that is locked to the edge of the opening 21 is formed. The engaging portion 41a, the screw hole 41d, the protruding portion 41e, and the protruding portion 41f form a locking structure on the guide member 25 side that prevents the guide member 25 from falling into the refueling tank storage chamber.

Reinforcing ribs 43 and 45 are integrally formed on the surface portions of the protruding portion 41e and the fifth portion 41E of the positioning portion 41 and the surface portions of the protruding portion 41f and the sixth portion 41F of the positioning portion 41 so as to straddle both of them. It is formed (see FIG. 5 (D)). Further, a reinforcing rib 47 is integrally formed on the positioning portion 41 of the guide member 25 and the back surface portion of the inclined portion 39 so as to straddle both of them (see FIG. 5 (E)).

The cylindrical portion 37 of the guide member 25 is arranged concentrically with the cylindrical recess 31 of the attachment 29. In the present embodiment, the inner diameter dimension W1 of the cylindrical portion 37 of the guide member 25 is designed to be about 6 mm larger than the inner diameter dimension W2 of the cylindrical recess 31 of the attachment 29. Further, the inner diameter dimension W1 of the cylindrical portion 37 of the guide member 25 is larger than the diameter dimension of the rear end portion RE of the liquid fuel cartridge FC, and is about 3 mm larger than the maximum diameter portion W3 of the cylindrical main body portion FCB of the liquid fuel cartridge FC. It is designed to be large.

Since the opening 21 is provided with the guide member 25, the front end FE of the liquid fuel cartridge FC is guided to the cylindrical portion 37 by the inclined portion 39 and guided to the cylindrical concave portion 31 of the attachment 29, and the liquid fuel is supplied. The lateral movement of the rear end RE of the cartridge FC is restricted. Further, if dripping occurs when the liquid fuel cartridge FC is removed, the liquid fuel will fall on the inclined portion 39. The liquid fuel that has fallen on the inclined portion 39 is guided to the cylindrical portion 37 through the inclined portion 39 and falls into the cylindrical recess 31 of the attachment 29, so that the odor due to dripping can be suppressed.

[Pressing member]
As described above, the liquid fuel combustor 1 of the present embodiment was originally designed to include a metal cartridge tank, and the metal cartridge tank is a liquid fuel tank during transportation. It was functioning as a holding member of 5. Therefore, in the present embodiment in which the metal cartridge tank is omitted, a pressing member 35 is provided as a member for pressing the liquid fuel tank 5.

9A is a front view of the pressing member 35, FIG. 9B is a left side view, FIG. 9C is a right side view, FIG. 9D is a plan view, and FIG. 9E is a bottom view. Since the rear view appears in the same manner as the front view, the illustration is omitted. FIG. 10 is a perspective view of the liquid fuel combustor 1 in a state where the cabinet 11 is omitted.

The pressing member 35 is provided at a contact portion 35A that contacts the upper surface of the liquid fuel tank 5, an extension portion 35B that is connected to the contact portion 35A and extends toward the pedestal 9, and a tip of the extension portion 35B. It has engaging portions 35C and 35D that are engaged with engaged portions 9A and 9B provided on the stand 9. Reinforcing ribs 49 are integrally formed on the surface portions of the contact portion 35A and the extension portion 35B so as to straddle the two. As shown in FIG. 10, in a state where the engaging portions 35C and 35D are engaged with the engaged portions 9A and 9B, the contact portion 35A presses the liquid fuel tank 5 toward the pedestal 9.

The engaged portions 9A and 9B are two of a plurality of cabinet positioning holes formed around the stand 9 for positioning the cabinet 11 with respect to the stand 9.

Although the embodiments of the present invention have been specifically described above, the present invention is not limited to these embodiments, and of course, changes can be made within the scope of the technical idea of the present invention. Is.

According to the present invention, it is possible to provide a liquid fuel combustor in which a replaceable liquid fuel cartridge having a cylindrical body can be easily inserted into a refueling tank storage chamber. Further, it is possible to provide a liquid fuel combustor in which the liquid fuel cartridge stored in the refueling tank storage chamber does not tilt and approach the partition wall. It is also possible to provide a liquid fuel combustor in which the liquid fuel that has dripping and dropped does not fall onto the liquid fuel tank. Further, it is possible to provide a liquid fuel combustor in which the cabinet is not distorted during transportation without the need for a metal cartridge tank.

1 Liquid fuel burner 3 Housing 9 Stand 11 Cabinet 5 Liquid fuel tank 27 Fuel inlet 7 Burner assembly 13 Partition wall 15 Refueling tank storage room 17 Assembly storage room 19 Top plate 21 Opening 23 Lid 25 Guide member 37 Cylindrical Part 39 Inclined part 41 Positioning part 29 Attachment 31 Cylindrical recess 33 Fuel discharge hole 35 Pressing member 43, 45, 47, 49 Reinforcing rib FC Liquid fuel cartridge FCB Cylindrical body FS Fuel supply part VA On-off valve assembly FE Front end RE Rear end

Claims (7)

A housing consisting of a stand and a cabinet mounted on the stand,
A refueling tank storage chamber formed in the cabinet and composed of a replaceable liquid fuel cartridge having a cylindrical main body is inserted and stored through an opening formed in the top plate of the cabinet.
A liquid fuel tank arranged on the pedestal provided with a fuel receiving port to which a fuel supply unit of the liquid fuel cartridge housed in the refueling tank storage chamber is fitted.
A burner assembly that is arranged in the assembly storage chamber formed in the cabinet and burns the liquid fuel in the liquid fuel tank.
A liquid fuel combustor provided with a partition wall that partitions the refueling tank storage chamber and the assembly storage chamber so as to be thermally insulated.
The fuel supply of the liquid fuel cartridge arranged in the opening of the refueling tank storage chamber, serving as a guide when the liquid fuel cartridge is stored in the refueling tank storage chamber, and being stored in the refueling tank storage chamber. A liquid fuel combustor comprising a guide member for restricting lateral movement of the rear end portion of the cylindrical body located on the opposite side of the portion. The guide member is provided in a cylindrical portion to which the rear end portion of the cylindrical body fits, an inclined portion arranged on the cylindrical portion and converging from the opening side toward the cylindrical portion, and the inclined portion. The liquid fuel combustor according to claim 1, further comprising a positioning portion that is continuously provided and positions the guide member with respect to the opening. A plurality of locking structures for preventing the guide member from falling into the fuel tank storage chamber are formed along the opening between the partition wall and the peripheral wall portion surrounding the opening of the cabinet and the guide member. The liquid fuel combustor according to claim 1 or 2. The liquid fuel combustor according to claim 2, wherein reinforcing ribs are integrally formed on the positioning portion of the guide member and the back surface portion of the inclined portion so as to straddle the positioning portion and the inclined portion. A contact portion that contacts the upper surface of the liquid fuel tank, an extension portion that is connected to the contact portion and extends toward the pedestal, and an engaged portion that is provided at the tip of the extension portion and is provided on the pedestal. A pressing structure having an engaging portion that is engaged with the portion, and the contact portion pressing the liquid fuel tank toward the pedestal while the engaging portion is engaged with the engaged portion. The liquid fuel combustor according to claim 1. An attachment provided with a cylindrical recess that is attached to the fuel supply port and into which the front end of the cylindrical body of the liquid fuel cartridge is fitted, and a fuel discharge hole that allows liquid fuel discharged into the cylindrical recess to pass through. The liquid fuel combustor according to any one of claims 1 to 4, further comprising. The liquid fuel combustor according to claim 6, wherein the inner diameter dimension of the cylindrical portion of the guide member is the same as or slightly larger than the inner diameter dimension of the cylindrical recess of the attachment.

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