KR20180089869A - Liquid fuel combustor and connecting structure of liquid fuel cartridge - Google Patents

Abstract

Provided are a liquid fuel combustor capable of using a liquid fuel cartridge previously filled with liquid fuel. According to the present invention, the liquid fuel combustor (1) comprises the liquid fuel cartridge (3), an attachment (5), and a burner assembly (9). A plurality of coupling convex parts (37) are formed on the inner wall part of a concave part of the attachment (5). A plurality of groove parts (35) are formed on the outer wall part of a valve seat body and a protrusion part (37) is disposed in the groove part (35). A shape of the inner circumferential surface of the groove part and the outer circumferential surface of the protrusion part are fixed to guide the coupling convex part (73) between a first facing portion (35A) and a second facing portion (37B) of the outer circumferential surface of the protrusion part. When the valve seat body (17) is inserted into the concave part (67) and a pressing-down force is applied, the coupling convex part (73) reaches between the first and second facing portions (35A, 37B). When the pressing-down force is removed, the protrusion part (37) is pressed into the coupling convex part (73) by an opening/closing charged part (21), such that the liquid fuel cartridge (3) is fixed.

Description

FIELD OF THE INVENTION [0001] The present invention relates to a liquid fuel combustor and a liquid fuel cartridge,

The present invention relates to a liquid fuel combustor and a liquid fuel cartridge connection structure for burning liquid fuel in a liquid fuel tank with a burner.

The conventional liquid fuel combustor is to burn the liquid fuel supplied from the cartridge tank into the liquid fuel tank by transferring the liquid fuel that has been purchased into the metal cartridge tank.

Therefore, in order to reduce the labor of transferring the liquid fuel to the cartridge tank, it has been studied to use a liquid fuel cartridge previously filled with a liquid fuel in a disposable container instead of a metallic cartridge tank.

Currently, various types of liquid fuel combustors are already sold. If the liquid fuel cartridge can not be used even if it is a liquid fuel combustor already sold, it is difficult to supply the liquid fuel cartridge.

An object of the present invention is to provide a liquid fuel combustor in which a liquid fuel cartridge filled with liquid fuel in advance can be used.

Another object of the present invention is to provide a liquid fuel combustor which is easily attachable, and in which the liquid fuel cartridge is difficult to separate even when vibration or impact is applied to the liquid fuel combustor.

It is another object of the present invention to provide a liquid fuel cartridge connection structure that enables the use of liquid fuel cartridges in various types of liquid fuel combustors.

The liquid fuel combustor of the present invention comprises a liquid fuel cartridge, a liquid fuel tank, an attachment, and a burner assembly.

The liquid fuel cartridge includes a valve body having a valve seat body having a valve seat and a valve member cooperating with the valve seat, the valve body having an opening / closing valve assembly attached to the cartridge body and a fuel discharge port of the cartridge body, And a pressure accumulating element for generating an urging force for urging the valve member against the valve seat in a released state.

The liquid fuel tank is provided with a fuel supply port.

The attachment includes a recess which is attached to the fuel supply port and into which the valve seat main body is fitted, a pressure pin which is provided in the recess and pushes up the valve body in a state in which the valve seat main body is engaged with the recess, And a fuel discharge hole passing through the liquid fuel discharged from the cartridge into the concave portion.

The burner assembly burns the liquid fuel in the liquid fuel tank.

A plurality of engaging convex portions are formed in the inner wall portion of the recess of the attachment at a predetermined pitch in the circumferential direction of the inner wall portion and protruding toward the inside of the recessed portion. A plurality of grooves opened to the outside in the inserting direction and the orthogonal direction orthogonal to the inserting direction are arranged at a predetermined pitch in the circumferential direction of the valve seat main body and the outer wall portions of the valve seat main body are respectively located in the plurality of grooves A plurality of protrusions protruding in the orthogonal direction are disposed. The groove inner circumferential surface of the plurality of grooves and the shape of the outer circumferential surface of the protruding portion of the plurality of protruding portions are such that the engaging convex portion is guided along the inner circumferential surface of the groove portion or the outer circumferential surface of the protruding portion in the process of inserting the valve seat main body into the concave portion, And the engaging convex portion is determined to be guided between the first opposing portion of the inner circumferential surface of the groove portion facing the insertion direction and the second opposing portion of the outer surface of the projecting portion when the engaging convex portion is further inserted into the portion, And discharging means for discharging the protruding portion to the engaging convex portion when the pushing force to the liquid fuel cartridge is released when the valve member is pushed up by the upper pin in the direction away from the valve seat.

In this way, the liquid fuel cartridge can be attached to the liquid fuel combustor to which the attachment can be attached. Further, the liquid fuel cartridge can be easily attached to the attachment, and the liquid fuel cartridge is hardly separated even when vibration or impact is applied to the liquid fuel combustor.

The depressed portion of the attachment is provided with a compression-use accumulating part which is pushed by the valve seat main body inserted into the recess, and the accumulating means may be constituted by the accumulating parts for opening and closing and the accumulating charge parts for pressure.

The storage means may be a storage part for opening and closing the liquid fuel cartridge.

The contour shape of the plurality of grooves seen from the outside in the direction orthogonal to the grooved inner circumferential surface has a shape in which the dimension in the circumferential direction becomes smaller toward the first opposing portion of the groove inner circumferential surface,

The contour of the outer circumferential surface of the protruding portion of the plurality of protruding portions may have a shape increasing in the circumferential direction as it faces the second opposing portion of the outer circumferential surface of the protruding portion.

The shape of the distal end in the insertion direction of the wall portion positioned between the two adjacent groove portions of the plurality of grooves and the shape of the distal end portion in the insertion direction of the protrusion portion and the shape of the engaging convex portion, And may have a shape in which the engaging convex portion slides into the groove portion when it comes into contact with the leading end in the insertion direction.

The distal end portion in the insertion direction of the wall portion and the distal end portion in the insertion direction of the projection have a shape in which the dimension in the circumferential direction is gradually decreased toward the insertion direction and the shape of the distal end portion in the withdrawing direction opposite to the insertion direction of the coupling- And may have a shape in which the dimension in the circumferential direction is gradually decreased toward the direction.

And the cross-section of the projection in the pull-out direction may be formed of a curved face which is larger than the cross-section in the insertion direction of the engaging convex portion and curved so as to be convex toward the insertion direction.

The predetermined pitch may be 360 占 N, and N may be an integer between 2 and 6 inclusive. N is, for example, 4.

The present invention can also be understood as a liquid fuel cartridge connection structure. The use of the liquid fuel cartridge connection structure of the present invention enables a liquid fuel cartridge to be used in a conventional liquid fuel combustor. The liquid fuel cartridge connection structure of the present invention includes a cartridge body and an opening and closing valve assembly attached to a fuel discharge port of the cartridge body, wherein the opening and closing valve assembly includes a valve seat body having a valve seat and a valve member cooperating with the valve seat A liquid fuel cartridge comprising a valve body and an opening / closing valve for generating an urging force to urge the valve member against the valve seat in a state of being discharged, is provided with a fuel supply port of the liquid fuel combustor, Linking liquid fuel cartridge connection structure. Therefore, the liquid fuel cartridge connecting structure of the present invention comprises: a concave portion attached to the fuel supply port and fitted to the valve seat main body; a pressing pin provided in the concave portion and pushing up the valve body in a state where the valve seat main body is engaged with the concave portion; And a fuel discharge hole formed in the concave portion and passing through the liquid fuel discharged from the fuel cartridge into the concave portion. A plurality of engaging convex portions are formed on the inner wall portion of the concave portion of the attachment at a predetermined pitch in the circumferential direction of the inner wall portion and further protruding toward the inside of the concave portion. The outer wall of the valve seat main body is provided with a plurality of grooves which are opened to the outside in a direction orthogonal to the inserting direction and orthogonal to the inserting direction and perpendicular to the inserting direction of the valve body, And a plurality of protruding portions are disposed in the outer wall portion of the valve seat main body, the plurality of protruding portions being located in the plurality of groove portions and protruding in the orthogonal direction. The groove inner circumferential surface of the plurality of grooves and the shape of the outer circumferential surface of the protruding portion of the plurality of protruding portions are such that the engaging convex portion is guided along the inner circumferential surface of the groove portion or the outer circumferential surface of the protruding portion in the process of inserting the valve seat main body into the concave portion, The engaging convex portion is determined to be guided between the first opposing portion of the inner circumferential surface of the groove portion and the second opposing portion of the outer surface of the protruding portion opposite to the insertion direction. In addition, when a downward force is applied to the liquid fuel cartridge to the liquid fuel cartridge, the valve member is pushed up by the pressure pin in a direction away from the valve seat. When the downward force to the liquid fuel cartridge is released, So that the protruding portion is urged to be pressed.

1 is a diagram showing a part (front surface) of the liquid fuel combustor of the present embodiment in a state of being broken.
2 (B) is a front view, Fig. 2 (C) is a cross-sectional view taken along the line CC, Fig. 2 (D) is a plan view of the liquid fuel cartridge, DD.
3 is a perspective view of the opening and closing valve assembly.
4 is an exploded perspective view of the opening and closing valve assembly.
5A is a plan view of the opening and closing valve assembly, FIG. 5B is a sectional view taken along the line BB, and FIG. 5C is a sectional view taken along the line CC.
6 is a perspective view of a cap attached to the opening and closing valve assembly.
7 is a perspective view of the attachment.
8 is an exploded perspective view of the attachment.
9 (A) and 9 (B) are views showing a state in which the liquid fuel cartridge is attached to the attachment.
10 (A) and 10 (B) are views showing a state in which the liquid fuel cartridge is attached to the attachment.
11 (A) and 11 (B) are views showing a state in which the liquid fuel cartridge is attached to the attachment.
12 (A) and 12 (B) are views showing a state in which the liquid fuel cartridge is attached to the attachment.
13 is a sectional view taken along the line XIII-XIII shown in Fig.

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

[Overall configuration]

1 is a diagram showing a part (front surface) of the liquid fuel combustor of the present embodiment in a state of being broken. 1, the liquid fuel combustor 1 includes a liquid fuel cartridge 3, an attachment 5, a liquid fuel tank 7 provided with a fuel supply port 7A, and a burner assembly 9 Respectively.

The burner assembly 9 burns the liquid fuel (generally kerosene) in the liquid fuel tank 7. In the present embodiment, the burner assembly 9 is provided with a core vertical burner having a burning amount of 2200 W.

In the present embodiment, the structures other than the liquid fuel cartridge 3 and the attachment 5 are the same as those of a commercially available liquid fuel combustor. It is made possible to attach the liquid fuel cartridge 3 to various types of commercially available liquid fuel combustors by attaching the attachment 5. [ In the present embodiment, the downward direction in the vertical direction of the sheet of Fig. 1 is defined as the insertion direction ID of the liquid fuel cartridge 3. Also in the other drawings, the insertion direction (ID) is shown to define the direction.

[Liquid fuel cartridge]

The liquid fuel cartridge 3 will be described with reference to Figs. 2 to 5. Fig.

Fig. 2 (A) is a plan view of the liquid fuel cartridge to which the cap 15 is attached, Fig. 2 (B) is a front view of the liquid fuel cartridge, Fig. 2 (D) is a cross-sectional view taken along line DD of Fig. 2 (A). The liquid fuel cartridge 3 is filled with a liquid fuel (e.g. kerosene). The liquid fuel cartridge 3 in a fuel-filled state is arranged at the head and sold to the prisoner. The liquid fuel cartridge 3 is provided with a cartridge main body 11 made of resin and an opening and closing valve assembly 13 attached to the fuel discharge port 11A of the cartridge body 11. [ The cap 15 is attached to the opening and closing valve assembly 13. The main cartridge body unit 11 has a bottom portion 11B, a main body base portion 11C continuous to the bottom portion 11B and a central portion 11D continuous with the main base portion 11C. The main body base portion 11C is formed with one fingertip fitting recessed portion 11E that is continuous in the circumferential direction and opens outward so as to fit a plurality of fingertips of the exchange operator. In addition, a hook for inserting one or more fingers of the exchange operator may be integrally formed on the outer surface of the bottom portion 11B.

3 to 5 (A) to 5 (C) are views showing the on-off valve assembly 13 in a state of being separated from the main cartridge body unit 11. 5 (A) is a plan view of the opening and closing valve assembly, FIG. 5 (B) is a sectional view taken along line BB of FIG. 5 (A), and FIG. 5 (C) is a cross-sectional view taken along the line CC of Fig. 5 (A). The opening and closing valve assembly 13 includes a valve seat body 17 made of resin, a valve body 19 made of resin, an opening and shutting fork 21 made of a metal coil spring, . It is needless to say that the fuel-storage parts 21 for opening and closing are not limited to metal, but may be made of resin.

The valve seat main body 17 has a bottom wall portion 25 formed with a through hole 29 through which liquid fuel passes and a peripheral wall portion 27 rising from the outer edge portion of the bottom wall portion 25, An annular flange portion 28 is integrally formed at an end portion of the wall portion 27 opposite to the bottom wall portion 25. An annular valve seat 31 is formed around the through hole 29 formed in the bottom wall portion 25.

Four groove portions 35 and four projecting portions 37 disposed in the four groove portions 35 are formed in the outer wall portion 33 of the peripheral wall portion 27 of the valve seat main body 17. The groove 35 opens outward in the insertion direction ID and the orthogonal direction orthogonal to the insertion direction ID. The contour of the groove inner circumferential surface 35a of the groove portion 35 viewed from the outside of the groove portion 35 in the orthogonal direction is a triangular shape having a base at the side of the bottom wall portion 25 and a dimension in the circumferential direction becoming smaller toward the top portion . In this embodiment, this top portion constitutes the first opposing portion 35A of the groove inner circumferential surface 35a.

The contour of the protruding portion outer circumferential surface 37a of the protruding portion 37 has a top portion 37A in the opening portion opened in the insertion direction ID of the groove portion 35 and faces in the direction opposite to the insertion direction ID The dimension in the circumferential direction becomes larger and the dimension in the circumferential direction becomes smaller as the direction is opposite to the insertion direction ID. In this embodiment, the end face on the side opposite to the inserting direction ID of the projecting portion 37 constitutes the second opposing portion 37B of the projecting portion outer peripheral face 37a. The shape of the cross section of the projecting portion 37 constituting the second opposing portion 37B is slightly curved so as to be convex toward the insertion direction ID. The first opposing portion 35A and the second opposing portion 37B are in positional relationship opposite to each other in the inserting direction. More specifically, the shape of the groove inner circumferential surface 35a of the groove portions 35 and the shape of the outer circumferential surface 37a of the projecting portion of the plurality of projecting portions 37 is such that the recessed portion 67 of the attachment 5, The engaging convex portion 73 of the attachment 5 enters the groove portion 35 while being guided along the groove inner circumferential surface 35a or the projecting portion outer circumferential surface 37a of the groove portion 35 in the process of inserting the main body 17, When the valve seat main body 17 is further inserted into the concave portion 67, the engaging convex portion 73 is inserted into the first opposing portion 35A of the groove inner circumferential surface 35a opposed to the insertion direction and the second opposing portion 35A of the protruding portion outer circumferential surface 37a 2 opposing portions 37B.

As shown in Fig. 5 (A), the four groove portions 35 and the four projecting portions 37 are arranged at a predetermined pitch in the circumferential direction. The pitch P between the top portion 35A of the groove portion 35 and the top portion 35A of the adjacent groove portion 35 and the pitch P between the top portion of the projecting portion 37 and the top portion of the adjacent projecting portion 37 The pitch P, which is an angular interval, is 360 deg. / 4 = 90 deg.

The shape of the distal end portion 36A in the insertion direction ID and the shape of the distal end portion 37A in the insertion direction ID of the projecting portion 37 positioned between the adjacent two groove portions 35 are the same And has a shape in which the dimension in the circumferential direction gradually decreases toward the ID (ID). The pitch which is the angular interval between the tip end portion 36A of the wall portion 36 and the tip end portion 37A of the adjacent projecting portion 37 is 360 deg. / 8 = 45 deg. Partial male threaded portions 36B and 37C are formed on the surface of the wall portion 36 and the four projected portions 37 positioned between the adjacent two groove portions 35 and the cap 15 is screwed.

3 and 5 (A), two cap engaging portions 38, which engage with the cap 15, are formed near the flange portion 28 of the outer wall portion 33 of the valve seat main body 17 Respectively. And the two cap engaging portions 38 are formed at a position spaced by 180 占 in the circumferential direction. The cap engagement portion 38 has an inclined portion 38A gradually separated from the outer wall portion 33 in the orthogonal direction as it proceeds in the circumferential direction and a flat portion 38B continuous with the inclined portion 38A.

The valve seat main body 17 is formed by injection molding and the parting line PL in the form of injection molding passes through the tip end portion 36A of the wall portion 36 as shown in Fig. A plurality of down gauge portions 33A for preventing the sync marks are formed on the outer wall portion 33. [

The pressing member 23 is fixed to the inner side (inner wall portion 34) of the peripheral wall portion 27 of the valve seat main body 17 as shown in Figs. 4, 5 (B) and 5 The engaging portion 34A and the engaging portion 34B to be engaged with the cartridge ejection port of the main cartridge body unit 11 are formed.

The valve body 19 includes a valve body body 39 and a valve member 41 provided at a position facing the valve seat 31 and cooperating with the valve seat 31, (Eight in this example) protruding portions 43 formed on the outer wall portion of the valve body main body portion 39 and a shaft portion 45 extending in the insertion direction ID from the central portion of the valve body main body 39. [ The liquid fuel passes through the valley portion 44 formed between the two adjacent protruding portions 43 and the protruding portion 43.

One end 21A of the valve element body 39 of the valve body 19 is in contact with the valve body 19 while the other end 21B of the valve element 21 is in contact with the pushing member 23 Contact. The discharge-use and storage component 21 generates an urging force for urging the valve member 41 against the valve seat 31 in the idle state.

As shown in Fig. 4, the pushing member 23 is provided with a shipment component accommodating portion 47 for accommodating the opening and closing parts 21, an annular valve seat body engaging portion 47 formed around the shipment component accommodating portion 47, A through hole 51 formed in a top portion of the spare parts accommodating portion 47 and through which the shaft portion 45 penetrates and a fuel passage through which the liquid fuel formed around the spare parts accommodating portion 47 passes (53). The valve seat main body engaging portion 49 is engaged with the pressing member engaging portion 34A (Fig. 5 (C)) formed on the inner wall portion 34 of the valve seat main body 17 and fixed State. The other end 21B of the opening and closing fastener 21 is in contact with the periphery of the shaft through hole 51. [

[cap]

6 is a perspective view of the cap 15 attached to the opening and closing valve assembly 13 shown in Figs. 3, 4, and 5 (A) to 5 (C) as viewed from below. The inner peripheral surface of the cap 15 is provided with a female screw portion 55 screwed to the part male threaded portions 36B and 37C shown in Fig. A portion 57 is formed. The two to-be-engaged portions 57 are formed at a position spaced by 180 占 in the circumferential direction. The engaging portion 57 includes an inclined surface 57A gradually moving away from the inner circumferential surface inward in the radial direction of the cap 15 as the cap 15 is moved in the direction opposite to the rotational direction of the cap 15, And a flat surface 57B extending in the radial direction from the position toward the inner peripheral surface.

On the outer circumferential surface of the cap 15, two finger pressing position designating portions 59 are formed. The finger pressing position indicating portion 59 is formed at a position shifted by 90 占 in the circumferential direction from the portion where the two engaged portions 57 are formed and the two finger pressing position indicating portions 59 are 180 占 in the circumferential direction As shown in Fig.

The cap 15 is inserted into the opening and closing valve assembly 13 and the part male threaded portions 36B and 37C and the female threaded portion 55 are screwed together until the cap engaging portion 38 and the engaged portion 57 come in contact with each other The cap 15 is rotated. When the cap 15 is further rotated with respect to the opening and closing valve assembly 13, the engageable portion 57 slides on the inclined portion 38A of the cap engaging portion 38 and on the flat portion 38B, The engaging portion 57 rides over the cap engaging portion 38. In this way, even if the cap 15 is rotated in the opposite direction, the engaged portion 57 is engaged with the cap engaging portion 38 to prevent the child or the like from accidentally opening the liquid fuel cartridge 3, A child lock can be formed (see Figs. 2 (C) and 2 (D)). When the liquid fuel cartridge 3 is to be opened, two finger pressing position indicating portions 59 are inserted with fingers to deform the shape of the cap 15 so that the distance between the engaged portions 57 is widened When the cap 15 is rotated in the direction opposite to the direction in which the cap 15 is tightened with respect to the opening / closing valve assembly 13, the engaged portion 57 can ride over the cap engagement portion 38 to release the child lock.

[Attachment]

Fig. 7 is a perspective view of the attachment, and Fig. 8 is an exploded perspective view of the attachment. The attachment 5 is attached to the fuel supply port 7A of the liquid fuel tank 7. The attachment 5 is provided with an attachment main body portion 61, a compression shipment parts 63, and a partition plate 65. The attachment body 61 has a recess 67 in which the valve seat main body 17 is fitted and a valve seat main body 17 provided in the recess 67. The valve seat main body 17 is fitted into the recess 67, And four fuel discharge holes 71 formed in the concave portion 67 and passing through the liquid fuel discharged from the liquid fuel cartridge 3 into the concave portion 67 Respectively.

A plurality of engaging convex portions 73 are formed in the inner wall portion of the concave portion 67 at predetermined pitches in the circumferential direction of the inner wall portion and project toward the inside of the concave portion. In this embodiment, four engaging convex portions 73 are formed, and the pitch, which is the angular interval between the engaging convex portions 73 and the adjacent engaging convex portions 73, is 360 deg. / 4 = 90 deg. . The engaging convex portion 73 has a shape in which the shape of the tip portion 73A facing the drawing direction opposite to the insertion direction ID gradually decreases in the circumferential direction toward the drawing direction.

The compression shoe parts 63 are provided around the press pin 69. The partition plate 65 is a ring-shaped member having a through hole 75 at the center thereof, and is supported by the compression-use shipment parts 63. The partition plate 65 is held by the compression bulb 63 and the four engaging convex portions 73 in the state where the compression bulletproof part 63 is empty, And is not located above the position of the second arm 73. Since the valve seat main body bottom wall portion 25 of the opening and closing valve assembly 13 contacts the partition plate 65 when the liquid fuel cartridge 3 is coupled to the attachment 5, Four protrusions 77 for reducing the number of protrusions are formed.

[Combination of Liquid Fuel Cartridge]

Figs. 9 (A), 9 (B) to 12 (A) and 12 (B) are views showing a state in which the liquid fuel cartridge is attached to the attachment. 9 to 12 are sectional views of the liquid fuel cartridge 3 and the attachment 5 in each of the drawings, and FIG. 5 (B) is a sectional view of the valve seat main body 17 Is a schematic view showing the joining process of the groove 35 and the protrusion 37 formed on the outer wall portion 33 and the coupling convex portion 73 formed on the inner wall portion of the attachment 5.

In order to attach the liquid fuel cartridge 3 to the attachment 5, the liquid fuel cartridge 3 is first inserted into the concave portion 67 of the attachment 5 toward the opening / closing valve assembly 13 side of the liquid fuel cartridge 3 ) And the state of Fig. 9 (B)). In this state, as shown in Fig. 9 (B), the engaging convex portion 73 is located outside the groove portion 35. Fig. The liquid fuel cartridge 3 is pivoted about the imaginary center line IL passing through the shaft portion 45 of the valve body 19 while applying a pressing force to lightly push the liquid fuel cartridge 3 in the insertion direction ID 3) (the direction of rotation is irrelevant). Since the tip end portion 36A and the distal end portion 37A of the engaging convex portion 73 have a small contact area with each other, the engaging convex portion 73 is formed along the groove inner circumferential surface 35a or the protruding portion outer circumferential surface 37a And is guided into the groove portion 35 (the state shown in Figs. 10 (A) and 10 (B)). When the liquid fuel cartridge 3 is further pushed in the inserting direction ID from this state, the engaging convex portion 73 is guided by the groove inner circumferential face 35a to reach the first opposing portion 35A ) And the state of Fig. 11 (B)). 11A and 11B, the push-up pin 69 pushes up the valve element 19 to thereby charge the valve element 21 for opening and closing, The pushing-out accumulator 63 is pushed down. In other words, the opening and closing flange fastening parts 21 and the compression fork-type fastening parts 63 cooperate to function as a charging means. When the force for pushing the liquid fuel cartridge 3 in the insertion direction ID is released, the opening and shutting fork storage part 21 and the compression storage part 63 are exhausted and the liquid fuel cartridge 3 moves in the drawing direction The engaging convex portion 73 is brought into contact with the second opposing portion 37B of the projecting portion 37 before the both of the opening and closing storage part 21 and the compression storage part 63 are empty, And the liquid fuel cartridge 3 is engaged (the state shown in Figs. 12 (A) and 12 (B)). The liquid fuel charged in the cartridge main body 11 flows through the fuel discharge port 11A and the fuel passing portion 53 of the pressing member 23, The through hole 29 of the valve seat main body 17 and then flows out to the attachment 5 and reaches the liquid fuel tank 7 through the fuel discharge hole 71 of the attachment 5 It becomes.

When separating the liquid fuel cartridge 3, the engaging convex portion 73 is guided and slidably engaged with the groove inner circumferential surface 35a by rotating the liquid fuel cartridge 3 while applying a downward force to the liquid fuel cartridge 3 (The state shown in Figs. 12A and 12B, the state shown in Figs. 11A and 11B, the state shown in Figs. 10A and 10B, ), And the state of Fig. 9 (B)).

[Shape Dimensions of Liquid Fuel Cartridge]

1, the liquid fuel combustor 1 is provided with a frame body 81 and a lid body 83 in addition to those described above. The frame body 81 is provided with a cartridge accommodating chamber 85 in which the liquid fuel cartridge 3 is accommodated and a burner assembly accommodating chamber 87 in which the burner assembly 9 is accommodated. A heat shield plate 89 is provided between the assembly housing chambers 87. The frame body 81 and the heat shield plate 89 are formed of a metal plate. The lid body 83 closes the upper opening of the cartridge housing chamber 85 and faces the bottom portion 11B in a state in which the liquid fuel cartridge 3 is accommodated in the cartridge housing chamber 85.

The heat from the burner assembly 9 diffuses from the burner assembly 9 to the surroundings but the temperature of the ceiling plate of the frame body 81 or the portion of the heat shield plate 89 near the ceiling plate is significantly And the heat causes the main body base portion 11C of the main cartridge body unit 11 to be heated. Therefore, in the embodiment of the present invention, the dimension of the main cartridge body unit 11 is designed so that the capacity of the main cartridge body unit 11 is increased while the temperature of the main body base unit 11C of the main cartridge body unit 11 is lower than the thermal deformation start temperature . That is, as shown in Figs. 1 and 2, the external dimensions of the main body base 11C are set smaller than the external dimensions of the central portion 11D, and the clearance between the heat shield plate 89 and the main body base 11C S1). A heat shield space S2 is formed between the lid body 83 and the bottom portion 11B of the main cartridge body unit 11. [

This will be described in detail with reference to Figs. 1 and 13. Fig. Fig. 13 is a sectional view taken along the line XIII-XIII in Fig. 1, showing only a necessary portion of the main cartridge body unit 11, the frame body 81, and the heat shield plate 89. Fig. The outer dimension of the central portion 11D of the cartridge body 11 is 86 mm, the outer dimension of the base portion 11C is 80 mm, the thickness dimension of the gap S1 is 6.64 mm, The dimension is 50.7 mm. Thus, even when the burner assembly having a burning amount of 2200 W is burned, the temperatures of the main body base portion 11C and the bottom portion 11B are prevented from exceeding 50 占 폚 under the condition of room temperature of 20 占 폚.

Although the embodiments of the present invention have been described above in detail, the present invention is not limited to these embodiments but can be changed within the scope of the technical idea of the present invention. For example, in the above-described embodiment, the compression-use storage parts 63 are provided in the recesses of the attachment 5 so that the opening and closing storage parts 21 and the compression storage parts 63 function as charge storage means in cooperation with each other , It is not necessary to provide the compression-use storage oil component 63 in the concave portion of the attachment 5, and only the storage and discharge component 21 may function as the storage means.

According to the present invention, it is possible to provide a liquid fuel combustor in which a liquid fuel cartridge previously filled with liquid fuel can be used. Further, it is possible to provide a liquid fuel combustor which is easily attachable, and in which the liquid fuel cartridge is hardly separated even when vibration or impact is applied to the liquid fuel combustor. It is also possible to provide a liquid fuel cartridge connection structure that enables the use of liquid fuel cartridges in various types of liquid fuel combustors.

1: Liquid fuel combustor 3: Liquid fuel cartridge
5: Attachment 61: Attachment main body part
63: Compressed storage parts 65: Compartment plate
75: Through hole 77:
67: recess 69:
71: fuel discharge hole 73: engaging convex portion
73A: Tip 7: Liquid fuel tank
7A: fuel supply port 9: burner assembly
11: Cartridge main body 11A: Fuel discharge port
11B: bottom portion 11C: main body base portion
11D: central portion 11E: fingertip fitting recess
13: opening / closing valve assembly 17: valve seat body
25: bottom wall portion 27: peripheral wall portion
33: outer wall portion 34: inner wall portion
28: flange portion 29: through hole
31: valve seat 35:
35A: first opposing portion 36: wall portion
36A: tip portion 37:
37A: tip portion 37B: second opposing portion
38: cap coupling portion 38A: inclined portion
38B: flat portion 19: valve body
39: valve body body part 41: valve member
43: protruding portion 44:
45: Shaft 21: Spare parts for opening and closing
23: Pressing member 47: Accumulated parts storage part
49: valve seat body engaging portion 51: shaft through hole
53: fuel passage portion 15: cap
55: female thread portion 57: engaged portion
57A: an inclined surface 57B: a flat surface
59: finger pressing position indicating portion 81:
83: Cover body 85: Cartridge compartment
87: Burner assembly housing chamber 89:

Claims (10)

A valve body having a valve seat body including a valve seat and a valve member cooperating with the valve seat, the valve body including a valve body, a cartridge body, and an opening / closing valve assembly attached to a fuel discharge port of the cartridge body, And a valve member for opening and closing the valve member, the valve member being adapted to be urged against the valve seat,
A liquid fuel tank having a fuel supply port,
A pressing pin which is attached to the fuel supply port and into which the valve seat main body is fitted, a pressing pin which is provided in the recess and which pushes up the valve body in a state in which the valve seat main body is engaged with the recess, An attachment having a fuel discharge hole formed therein and passing through the liquid fuel discharged from the liquid fuel cartridge into the recess;
A liquid fuel combustor having a burner assembly for burning liquid fuel in the liquid fuel tank,
A plurality of engaging convex portions which are arranged at a predetermined pitch in the circumferential direction of the inner wall portion and protrude toward the inside of the concave portion are formed in the inner wall portion of the concave portion of the attachment,
Wherein a plurality of grooves opened in an outer wall portion of the valve seat body toward an outer side in an insertion direction of the valve body into the concave portion and in an orthogonal direction orthogonal to the insertion direction are formed in the circumferential direction of the valve seat body at the predetermined pitch Lt; / RTI >
Wherein a plurality of protrusions which are located in the plurality of grooves and protrude in the orthogonal direction are disposed on the outer wall of the valve seat body,
Wherein the groove inner circumferential surface of the plurality of groove portions and the outer circumferential surface of the protruding portion of the plurality of protruding portions are formed such that the engaging convex portion is guided along the inner circumferential surface of the groove portion or the outer circumferential surface of the protruding portion during the insertion of the valve seat main body into the concave portion, And when the valve seat main body is further inserted into the concave portion, the engaging convex portion is defined to be guided between the first opposing portion of the inner circumferential surface of the groove portion and the second opposing portion of the outer surface of the convex portion,
When the downward force directed to the attachment to the liquid fuel cartridge is applied to the liquid fuel cartridge, the valve member is pushed up in the direction away from the valve seat by the pressure pin, and the down force to the liquid fuel cartridge is released And a discharge means for discharging the protruding portion to the coupling convex portion so as to be pressed. The method according to claim 1,
Wherein the depressed portion of the attachment is provided with a compression shipment part which is pushed by the valve seat main body inserted in the recess,
And said charge means is constituted by said opening and shut-off shipment parts and said compression-use storage parts. The method according to claim 1,
Wherein said charging means is said opening and shutting charge part of said liquid fuel cartridge. The method according to claim 1,
The contour shape of the groove inner circumferential surface of the plurality of groove portions viewed from the outside in the orthogonal direction has a shape in which the dimension in the circumferential direction becomes smaller as it goes toward the first opposing portion of the groove inner circumferential surface,
And the contour of the outer circumferential surface of the projecting portion of the plurality of projections has a shape that the dimension in the circumferential direction increases as the projecting portion faces the second opposing portion of the outer surface of the projecting portion. 5. The method of claim 4,
The shape of the leading end in the insertion direction of the wall portion located between the two adjacent groove portions of the plurality of groove portions and the shape of the leading end portion in the inserting direction of the projecting portion and the shape of the engaging convex portion, And the engaging convex portion slides into the groove portion when the leading end portion in the inserting direction or the leading end portion in the inserting direction of the protruding portion contacts each other. 6. The method of claim 5,
The distal end portion of the wall portion in the inserting direction and the distal end portion of the protrusion in the inserting direction have a shape gradually decreasing in the circumferential direction toward the inserting direction,
The shape of the tip end portion facing the drawing direction opposite to the inserting direction of the engaging convex portion has a shape in which the dimension in the circumferential direction is gradually reduced toward the drawing direction. The method according to claim 6,
Wherein the cross section of the projecting portion in the pulling direction is formed to be larger than the cross section of the engaging convex portion in the inserting direction and curved so as to be convex toward the inserting direction. The method according to claim 1,
Wherein the predetermined pitch is 360 DEG / N, and N is an integer of 2 or more and 6 or less. 9. The method of claim 8,
Wherein N is 4. 5. The liquid fuel combustor according to claim 1, A valve body having a valve seat body including a valve seat and a valve member cooperating with the valve seat, the valve body including a valve body, a cartridge body, and an opening / closing valve assembly attached to a fuel discharge port of the cartridge body, The liquid fuel cartridge comprising: an opening / closing fuel filler for generating an urging force to urge the valve member against the valve seat in a lean state; a liquid fuel cartridge for detachably connecting the liquid fuel cartridge to a liquid fuel tank provided with a fuel supply port of the liquid fuel combustor; As a fuel cartridge connecting structure,
A pressing pin which is attached to the fuel supply port and into which the valve seat main body is fitted, a pressing pin which is provided in the recess and which pushes up the valve body in a state in which the valve seat main body is engaged with the recess, And a fuel discharge hole formed in the fuel cartridge and passing through the liquid fuel discharged from the fuel cartridge into the recess,
A plurality of engaging convex portions which are arranged at a predetermined pitch in the circumferential direction of the inner wall portion and protrude toward the inside of the concave portion are formed in the inner wall portion of the concave portion of the attachment,
Wherein a plurality of grooves are formed in an outer wall portion of the valve seat main body so as to be inserted into the concave portion of the valve body and outward in a direction orthogonal to the inserting direction and orthogonal to the inserting direction, Are arranged at the predetermined pitch in the circumferential direction,
Wherein a plurality of protrusions which are located in the plurality of grooves and protrude in the orthogonal direction are disposed on the outer wall of the valve seat body,
Wherein the groove inner circumferential surface of the plurality of groove portions and the outer circumferential surface of the protruding portion of the plurality of protruding portions are formed such that the engaging convex portion is guided along the inner circumferential surface of the groove portion or the outer circumferential surface of the protruding portion during the insertion of the valve seat main body into the concave portion, And when the valve seat main body is further inserted into the recess, the engaging convex portion is guided to be guided between the first opposing portion of the inner circumferential surface of the groove portion and the second opposing portion of the outer surface of the protruding portion,
And when the pressure is applied to the liquid fuel cartridge, the valve member is pushed up in a direction away from the valve seat by the pressure pin, so that the pushing force to the liquid fuel cartridge is released And a discharge means for discharging the protruding portion to the coupling convex portion so as to be pressed.

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