JP2685993B2 - Oil fuel combustor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a petroleum fuel fuel device such as an oil stove, and more particularly to improvement of a portion for vertically moving a combustion wick.

[0002]

2. Description of the Related Art In a conventional petroleum fuel combustor, an elevating arm is connected to an operating lever, and the elevating arm moves a combustion wick vertically. A conventional combustion wick and wick holding metal fitting are shown in FIG. Combustion wick 51
Is formed in a cylindrical shape with a burning portion 51a made of glass wool or the like on the top. An opening 51b is formed in the center of the combustion core 51. On the other hand, a wick holder 54, which is formed in a cylindrical shape and has an engaging portion 53 formed in the center, is housed in the combustion wick 51. Burn the wick holder 54 to the wick 51
When it is housed inside, the engaging portion 53 projects outward from the opening portion 51b.

The engaging portion 53 is provided with a hole portion 53a for engaging an elevating arm (not shown). Then, the combustion wick 51 is moved in the vertical direction by the vertical movement of the lifting arm. This combustion wick 51 has conventionally been provided with a recess 52. As shown in FIG. 7, the conventional combustion wick 51 is lifted to the uppermost end a at the time of ignition and lowered to the combustion position (predetermined position) b at the time of combustion. Considering the state during combustion, the heater position must be set to H ″ when performing ignition without providing the recess 52. The heater position H ″ is above the combustion core upper end b during combustion. Then, there is a problem that it is exposed to high temperature during combustion. Therefore, the above-mentioned inconvenience was solved by setting the heater position to a position H'below the combustion core upper end b at the time of combustion, but in this case, in order to perform reliable ignition, the heater position H at the time of ignition is used. ′ And the upper end of the combustion wick must be opposed to each other, and the recess 52 is provided for this purpose.

The reason why the combustion core (elevating arm) once rises to the uppermost end and then descends to the combustion position is to set the anti-seismic device. The operating lever is also connected to the seismic isolator's setting mechanism.When the operating lever is pushed down to the lowermost position and the pressing force is released, the antiseismic device's pin returns slightly upward to the engaging part. Engage and the seismic isolation device is set. At this time, the elevating arm connected to the operation lever moves to the uppermost end, and when the pressing force is released, it lowers to the combustion position.

[0005]

When the recess 52 is formed in the combustion wick 51 as described above, the combustion state deteriorates.
There are inconveniences that the dimensional accuracy of the ignition heater and the concave portion 52 is not stable, the ignition performance is deteriorated, and a special process for forming the concave portion is required, which increases the cost of the combustion wick. Although it is not necessary to raise the combustion wick to the uppermost end and then lower it if only to ignite and burn in the petroleum fuel combustor, the combustion wick is moved up and down to set the anti-seismic device. However, it is a problem that the above-mentioned inconvenience occurs for that reason.

An object of the present invention is to eliminate the necessity of forming a recess in the combustion wick by setting the combustion wick at the same position at the time of ignition and at the time of combustion, improving the combustion state, ignition performance, and combustion wick. It is to provide an oil-fuel combustor capable of reducing the cost.

[0007]

SUMMARY OF THE INVENTION According to the present invention, an elevating arm that is pushed up to the uppermost end and is then lowered to a predetermined position by releasing the pushing force, and a combustion wick that moves up and down when the elevating arm is engaged. In the petroleum fuel combustor including, a vertically elongated hole is formed in the combustion core with which the elevating arm is engaged, and the longitudinal length of the hole is set to be substantially the distance between the uppermost end and a predetermined position. Further, it is characterized by further comprising an urging means for urging the elevating arm downward in the hole.

[0008]

In the present invention, the elevating arm is engaged with the hole of the combustion wick, and when the elevating arm moves upward, the elevating arm first moves within the vertically long hole. When the lifting arm reaches the upper end of the hole, the combustion wick is lifted by moving the lifting arm. Here, the length of the hole in the vertical direction is set to the distance between the predetermined position and the uppermost end, and therefore, the distance during which the elevating arm moves from the predetermined position to the uppermost end is such that the combustion wick is in the upward direction. Will not move to. That is, the combustion wick does not move above the combustion position. Then, when the pushing force to the lifting arm is released, the lifting arm descends by a distance corresponding to the distance between the uppermost end and a predetermined position, but this movement is suppressed within the elongated hole.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a diagram showing a combustion section of a petroleum fuel combustor according to the present invention. Petroleum fuel is stored in the combustion tank 6. A core outer cylinder 7 is erected on the combustion tank 6, and the combustion core 1 is housed in the core outer cylinder 7. Further, the combustion tank 6 is equipped with an ignition device and an anti-vibration device. An ignition part 8 is opposed to the combustion wick 1. The ignition unit 8 includes a heater that is turned on by operating the operation lever 9. Further, an elevating arm for vertically moving the combustion wick and a mechanism for setting a seismic isolator are connected to the operating lever 9. The ignition part 8 is fixed to the combustion tank 6.

A combustion core 1 is housed inside the core outer cylinder 7 and the combustion tank 6 so as to be vertically movable. The side surface of the combustion wick 1 is provided with an over-acting absorption device 10. 2 and 3 are views for explaining the configuration of the excessive operation absorption device 10, FIG. 2 is an external view of the combustion wick portion, and FIG. 3 is an assembled perspective view of the combustion wick. The core holder 2 is a metal cylindrical body.

The engaging portion 3 is welded and fixed to the lead holder 2. The engaging portion 3 is made of a U-shaped metal plate,
Welding portions for welding the lead holder 2 are formed at both ends. The engaging portion 3 is provided with a vertically elongated elliptical hole portion 3a, a vertically cut and raised portion 3b, and a screw hole 3c. A lifting arm (not shown) is engaged with the hole 3a. Further, the absorption spring 4 is fixed to the screw hole 3c by the screw 5. The absorbing spring 4 is formed by winding a wire around the central portion, and the winding portion 4a is fixed to the screw hole 3c by a screw 5. Then, one end 4b is locked to the cut-and-raised part 3b, and the other end 4c is locked to the side wall surface 3c of the engaging part 3. In this fixed state, a force is applied to the absorption spring 4 in the direction in which the end portions 4b and 4c are slightly opened, and the absorption spring 4 generates a force against it. That is, the absorption spring 4 urges the elevating arm engaged with the hole 3a downward.

A wick holder 2 fitted with an over-acting absorber 10 is built into the combustion wick 1. An opening 1b is provided in the center of the side surface of the combustion wick 1, and when the wick holder 2 is incorporated inside, the excessive motion absorbing device 10 projects outward from the opening 1b. A combustion wick 1 incorporating a wick holder 2 is attached to a combustion tank 6. Although the ignition part 1a is provided at the upper end of the combustion wick 1, the ignition part is not concave like the conventional one.

4 and 5 are a front view and a sectional view of the portion of the excessive operation absorbing device 10 when the combustion wick 1 is attached to the combustion tank 6. The elevating arm 11 is engaged with the hole 3 a of the excessive motion absorbing device 10. The elevating arm 11 is inserted below the absorption spring 4. In FIG. 5, reference numeral 12 is an inner core cylinder (or core guide cylinder). Ignition operation in the case of using this excessive operation absorption device 10 will be described.

When the operating lever 9 is depressed, the elevating arm rotates upward as indicated by arrow D in FIGS. At this time, the setting operation of the anti-seismic device is also started. When the elevating arm 11 rotates upward as indicated by the arrow D, the elevating arm first moves to the upper end in the elongated hole 3a, and then the elongated hole 3
The combustion wick is lifted together with the excessive motion absorbing member 10 by contacting the upper end of a. If this is made to correspond to the operation of the combustion wick, first, the combustion wick 1 does not operate at all when the elevating arm 11 is moving in the elongated hole 3a. Then, after the elevating arm 11 contacts the upper end of the elongated hole 3a, the combustion wick 1 is lifted and the combustion wick 1 is set to the combustion position (two-dot chain line in FIG. 5).
That is, even if the elevating arm 11 moves to the uppermost end, the combustion wick 1 absorbs the excessive upward movement by the excessive movement absorbing device 10, and does not move above the combustion position.

When the elevating arm 11 moves to the uppermost end, the operating force of the operating lever 9 is released, and the elevating arm 11 returns slightly downward. At this time, the raising / lowering arm 11 is returned within the elongated hole 3a, and the combustion wick 1 is not vertically moved. The anti-vibration device is set in synchronization with the descending operation of the elevating arm 11.

[0016]

According to the present invention, since the excessive movement of the lifting arm is not transmitted to the combustion wick and the combustion wick does not move beyond the combustion position, it is necessary to form a recess in the combustion wick. There is no. Therefore, the problems of poor combustion, reduced ignition performance, and high cost can be solved.

[Brief description of the drawings]

FIG. 1 is a diagram showing an ignition part of an oil fuel combustor in an example.

FIG. 2 is a view showing a combustion wick and a combustion wick holding metal fitting.

FIG. 3 is an assembly diagram of the combustion wick and the combustion wick holding metal fitting.

FIG. 4 is a front view of a main part of a combustion wick holding metal fitting.

FIG. 5 is a sectional view of a main part of a combustion wick holding metal fitting.

FIG. 6 is a diagram showing a relationship between a combustion core position and a heater position during ignition and combustion.

FIG. 7 is a diagram showing a relationship between a combustion core position and a heater position during conventional ignition and combustion.

FIG. 8 is a view showing a conventional combustion wick and a combustion wick holding metal fitting.

Continuation of front page (51) Int.Cl. ⁶ Identification number Office reference number FI technical display location F23D 3/24 620 F23D 3/24 620E

Claims (1)

(57) [Claims] 1. An elevating arm that pushes up to the uppermost end and then descends to a predetermined position by releasing the pushing force, and a combustion wick that moves up and down when the elevating arm is engaged.
In the petroleum fuel combustor including, a vertically elongated hole is formed in the combustion core with which the elevating arm is engaged, and the longitudinal length of the hole is set to be substantially the distance between the uppermost end and a predetermined position. In addition, the petroleum fuel combustor further comprises a biasing means for biasing the lifting arm downward in the hole.