JP6936074B2 - Thermal power control valve for double-sided grill - Google Patents

Description

The present invention relates to a thermal power control valve for a double-sided grill having an upper heat burner and a lower heat burner.

Conventionally, as this type of thermal power control valve, a valve housing having a gas inflow chamber on one side in the axial direction, a gas outflow chamber for an upper fire burner and a gas outflow chamber for a lower fire burner on the opposite side in the axial direction, and a gas inflow chamber It is equipped with a rotary plate that is rotationally driven by a motor and a fixing plate that faces the gas outflow chambers for both the upper and lower fire burners and is in contact with the rotary plate, and a valve hole is opened in the rotary plate. At the same time, the area facing the gas outflow chamber for the upper fire burner and the area facing the gas outflow chamber for the lower fire burner of the fixed plate are designated as the upper heat area and the lower heat area, respectively, and each area of the upper fire and the lower fire of the fixed plate. In addition, in order to switch the thermal power of each burner of top and bottom heat to at least two stages of strength and weakness, at least two types of holes, a hole for high heat and a hole for low heat, are opened as gas passage holes, and the top heat of the fixing plate is fired. Of the gas passage holes in each region of the upper and lower heats, the holes that are opened by overlapping the valve holes are switched by the rotation of the rotating plate so that the thermal power of each burner of the upper and lower heats can be switched. (See, for example, Patent Document 1).

In this structure, the fixing plate is composed of a fixing plate main body in contact with the rotating plate and an orifice plate that overlaps the fixing plate main body with a packing. Then, the holes for low heat to be opened in each area of the upper and lower heats of the orifice plate are composed of the orifice holes which exert a squeezing effect, and the holes for low heat to be opened in each area of the upper and lower heats of the fixed plate body are provided. It is composed of holes with an opening area larger than that of the orifice holes. Here, the hole diameter of the orifice hole needs to be changed according to the gas type. Therefore, conventionally, a dedicated orifice plate is prepared according to each gas type, and when changing the gas type, not only the gas nozzle is replaced but also the orifice plate is replaced.

However, if the orifice plate, which is an internal component of the thermal power control valve, is also replaced by changing the gas type, it is necessary to disassemble the thermal power control valve, which is troublesome.

Japanese Unexamined Patent Publication No. 2012-223361

In view of the above points, it is an object of the present invention to provide a thermal power control valve for a double-sided grill that can deal with a change in gas type without replacing internal parts of the valve.

In order to solve the above problems, the present invention is a thermal power control valve for a double-sided grill having a top heat burner and a bottom heat burner, and has a gas inflow chamber on one side in the axial direction and a top fire on the opposite side in the axial direction. A valve housing having a gas outflow chamber for a burner and a gas outflow chamber for a lower fire burner, a rotary plate rotationally driven by a motor facing the gas inflow chamber, and both gas outflows for the upper fire burner and the lower fire burner. It is equipped with a fixing plate that faces the chamber and is in contact with the rotating plate, and a valve hole is opened in the rotating plate. As a gas passage hole to switch the thermal power of each burner of the upper and lower heats to at least two stages, each of which is the upper heat area and the lower heat area, and the upper and lower heat areas of the fixed plate, respectively. , At least two types of holes, a hole for high heat and a hole for low heat, are opened, and among the gas passage holes in each region of the upper and lower heat of the fixed plate, the hole that is opened so as to overlap the valve hole is the rotation of the rotating plate. In the case where the thermal power of each burner of the upper and lower heats can be switched by switching with, in each area of the upper and lower heats of the fixed plate, a plurality of holes corresponding to a plurality of gas types are used as holes for low heat. The hole is opened, and the rotation position of the rotating plate that switches the thermal power of each burner of the upper and lower heats to low heat corresponds to the gas type used among the low heat holes of each area of the upper and lower heats of the fixed plate. The valve hole is changed according to the type of gas used so that the valve hole overlaps the hole to be fired , and the fixing plate is composed of a fixing plate main body in contact with the rotating plate and an orifice plate that overlaps the fixing plate main body via packing. Multiple low-heat holes corresponding to multiple gas types to be opened in each area of the top and bottom of the orifice plate are composed of orifice holes that exert a squeezing effect, and each area of the top and bottom of the fixed plate body. Multiple low-heat holes corresponding to multiple gas types to be opened in the It is characterized by providing beads that individually enclose the connection space with the low heat hole corresponding to the gas type.

According to the present invention, when changing the gas type, the rotation position of the rotating plate can be changed according to the gas type to be used, so that it can be dealt with without replacing the internal parts of the valve. Therefore, workability when changing the gas type is improved.

In here, the fixed plate and single plate structure having no orifice plate, it is also possible to open an orifice to exert throttling effect as simmer hole in the fixed plate. However, in this case, the orifice hole may be clogged with the grease applied to the sliding contact surface between the rotating plate and the fixing plate. On the other hand, in the present invention , since the low heat holes composed of the orifice holes are opened in the orifice plate away from the rotating plate, clogging of these holes by grease can be prevented. Further, in the present invention, the packing, to provide a bead surrounding individually connecting space between the simmer hole corresponding to each type of gas simmer hole and the orifice plate corresponding to each type of gas fixing plate body as described above When reducing the thermal power of each burner of top and bottom heat, the gas that has passed through the low heat hole corresponding to the gas type used in the fixed plate body corresponds to the gas type other than the gas type used in the orifice plate. It is possible to solve the problem that the gas flows into the hole and the amount of gas cannot be narrowed down to an appropriate level according to the type of gas used.

The cut side view of an example of the double-sided grill to which the thermal power control valve of the embodiment of this invention is applied. FIG. 2 is a cross-sectional view taken along the line II-II of FIG. (A) A perspective view of a state in which a grill plate is supported on a grill plate, and (b) a perspective view of a state in which a grill is supported on a grill plate. The cut side view of the thermal power control valve of embodiment of this invention. The perspective view of the disassembled state of the main part of the thermal power control valve of an embodiment. The plan view of the fixing plate which combined the fixing plate main body and the orifice plate provided in the thermal power control valve of embodiment. FIG. 3 is a perspective view seen from diagonally below the orifice plate and packing provided in the thermal power control valve of the embodiment. The explanatory view which shows the relationship between the fixing plate and the rotating plate provided in the thermal power control valve of an embodiment.

With reference to FIGS. 1 and 2, 100 indicates a double-sided grill to be incorporated into a gas stove (not shown). The grill 100 includes a grill storage 101 installed in a stove body (not shown) and a grill door 102 that opens and closes the front opening of the grill storage 101. In the grill storage 101, the plate-shaped grill plate 104 shown in FIG. 3A or the grill 105 shown in FIG. 3B is stored together with the grill plate 103 as a mounting tool for the object to be cooked. The grill plate 103 is supported by a plate support frame 106 connected to the grill door 102, and support frames 107 for supporting the grill plate 104 and the grill 105 are erected before and after the plate support frame 106. .. Then, by opening the grill door 102 forward, the grill plate 103 and the grill plate 104 or the grill 105 are pulled out together in front of the grill storage 101.

A top fire burner 108 is provided on the ceiling portion 101a of the grill storage 101. The upper fire burner 108 is composed of a surface combustion type burner having a ceramic combustion plate 108a having a large number of flame holes (not shown) formed, and is attached to the ceiling portion 101a of the grill storage 101 with the combustion plate 108a facing downward. It is installed.

At the lower part of both sides of the grill 101 in the lateral direction (lower than the grill plate 104 and the grill 105), there is a lower fire burner 109 that is long in the front-rear direction and has a flame port 109a that opens inward in the lateral direction. Have been placed. A target portion 110a facing the ignition electrode 110 is provided at the rear portion of the lower fire burner 109, and the lower fire burner 109 is ignited by a spark discharge between the ignition electrode 110 and the target portion 110a. Further, in order to detect a misfire of the lower fire burner 109, a thermocouple 111 is arranged so as to face the flame port 109a at the front of the lower fire burner 109.

On the inner surface of each side wall 101b on both sides of the grill storage 1 in the lateral direction, a secondary air guide plate 112 extending laterally inward at a position above the lower heat burner 109 and a secondary air guide plate 112 extending laterally inward at a position below the lower fire burner 109 in the lateral direction. A heat shield plate 113 that suppresses the heating of the grill plate 103 is provided so as to project toward the side. Further, an exhaust passage 114 extending rearward from the upper part of the rear end of the grill storage 101 and a temperature sensor 115 for detecting the temperature inside the storage below the grill plate 104 are provided. Further, an after burner 116 that burns off oil smoke contained in the combustion exhaust gas is arranged on the lower surface of the exhaust passage 114. The after burner 116 is composed of a surface combustion type burner having a ceramic combustion plate 116a having a large number of flame holes (not shown), and is mounted on the lower surface of the exhaust passage 114 with the combustion plate 116a facing upward. There is.

The thermal power of each of the upper and lower heat burners 108 and 109 is adjusted by the thermal power control valve A of the embodiment of the present invention shown in FIG. The valve housing 1 of the thermal power control valve A has a gas inflow chamber 11 on one side in the axial direction (upper side in FIG. 4), a gas outflow chamber 12 for an upper fire burner on the opposite side in the axial direction (lower side in FIG. 4), and a lower fire. It has a burner gas outflow chamber 13 (see FIG. 5). The valve housing 1 is composed of an upper housing 1a and a lower housing 1b. Then, a gas inflow chamber 11 is formed in the upper casing 1a, and a gas outflow chamber 12 for the upper fire burner and a gas outflow chamber 13 for the lower fire burner are formed in the lower casing 1b as shown in FIG. An upper fire burner gas outlet 12a communicating with the burner gas outflow chamber 12 and a lower fire burner gas outlet 13a communicating with the lower fire burner gas outflow chamber 13 are formed. The lower casing 1b is also formed with an after-burner gas outlet 12b that communicates with the upper-fire burner gas outlet 12a in the upper-fire burner gas outflow chamber 12.

Inside the valve casing 1, the rotating plate 3 facing the gas inflow chamber 11 and driven to rotate by a motor 2 such as a stepping motor, and the gas outflow chambers 12 and 13 for both the upper heat burner and the lower heat burner face. A fixing plate 4 in contact with the rotating plate 3 is provided. The rotating plate 3 is urged by a spring 5 so as to be in contact with the fixing plate 4. With reference to FIG. 8, the rotating plate 3 has a first valve hole 31 extending in the circumferential direction and having radial outward bending portions at both ends in the circumferential direction, and one of the circumferential directions from the first valve hole 31. A second valve hole 32, which is separated by a predetermined distance, is opened in the air.

With reference to FIGS. 5 and 6, in the upper heat region 4U, which is the region of the fixed plate 4 facing the gas outflow chamber 12 for the upper fire burner, in order to switch the thermal power of the upper fire burner 108 into two stages of strength and weakness, Two types of holes, a high heat hole 41U and a low heat hole 42U, are provided as gas passage holes. Further, in the lower heat region 4L, which is a region facing the gas outlet 13 for the lower heat burner of the fixed plate 4, a high heat hole is provided as a gas passage hole in order to switch the thermal power of the lower heat burner 109 into two stages. Two types of holes, 41L and 42L for low heat, are opened. Then, among the gas passage holes of the upper and lower heat regions 4U and 4L of the fixed plate 4, the holes that are opened so as to overlap the valve holes 31 and 32 are switched by the rotation of the rotary plate 3, and the upper heat and the lower heat are switched. The thermal power of each of the fire burners 108 and 109 can be switched.

Further, in the present embodiment, there are a plurality of holes corresponding to a plurality of gas types, for example, holes corresponding to LPG, as low heat holes 42U and 42L in the upper and lower heat regions 4U and 4L of the fixing plate 4. Holes 42U ₂ , 42L ₂ corresponding to 42U ₁ , 42L ₁ and 13A are opened.

It is also possible to form the fixing plate 4 as a single plate structure and to provide small-diameter orifice holes in the fixing plate 4 as holes 42U and 42L for low heat to exert a drawing effect. However, in this case, the orifice hole may be clogged by the grease applied to the sliding contact surfaces of the rotating plate 3 and the fixing plate 4.

Therefore, in the present embodiment, the fixing plate 4 has a two-plate structure composed of a fixing plate main body 4a in contact with the rotating plate 3 and an orifice plate 4b overlapping under the fixing plate main body 4a via a packing 4c. It is said. Then, the LPG to be opened in the upper heat area 4U of the orifice plate 4b and the low heat holes 42U ₁ b and 42U ₂ b corresponding to 13A are composed of the orifice holes exhibiting the throttle effect, and the upper heat area 4U of the fixing plate main body 4a is formed. and low heat holes _42U 1 a which corresponds to the LPG and 13A to open and 42U ₂ a constituted by a large hole opening area of the orifice hole to. Similarly, the LPG to be opened in the lower heat area 4L of the orifice plate 4b and the low heat holes 42L ₁ b and 42L ₂ b corresponding to 13A are composed of the orifice holes that exert a throttle effect, and the lower heat area of the fixing plate main body 4a is formed. low heat holes _42L 1 a which corresponds to the LPG and 13A to open the 4L, constitutes a large hole opening area than the 42L ₂ a orifice. _{In this way, by opening the low heat holes 42U 1} b, 42U ₂ b, 42L ₁ b, 42L ₂ b, which are composed of orifice holes having a small hole diameter, in the orifice plate 4b away from the rotating plate 3, these holes can be formed. It is possible to prevent clogging due to grease.

It should be noted that the opening areas of the high heat holes 41Ua and 41La to be opened in the upper and lower heat areas 4U and 4L of the fixed plate main body 4a and the high heat to be opened in the upper and lower heat areas 4U and 4L of the orifice plate 4b. The opening areas of the holes 41Ub and 41Lb are almost the same. Here, since the amount of gas in high heat is determined by the nozzle hole diameter of the gas nozzle that supplies gas to the burners 108 and 109 of the upper and lower heats, the opening areas of the high heat holes 41U and 41L are changed according to the gas type. No need.

_{Further, the packing 4c is connected to a low heat hole 42U 1} a corresponding to the LPG of the upper heat region 4U of the fixing plate main body 4a _{and a low heat hole 42U 1} b corresponding to the LPG of the upper heat region 4U of the orifice plate 4b. space and, connecting space between the low flame hole 42U ₂ b corresponding to the 13A fire area 4U top of over fire area 4U simmer holes 42U ₂ corresponding to 13A of a and the orifice plate 4b of the fixing plate body 4a, fixed and connection space with low heat hole 42L ₁ b corresponding to the LPG burning down region 4L of low heat holes 42L ₁ a and the orifice plate 4b corresponding to the LPG burning down region 4L plate body 4a, a fixing plate body 4a is provided with a bead 4d surrounding the connecting space between the low flame hole 42L ₂ b corresponding to 13A of burning down region 4L of low heat holes 42L ₂ a and the orifice plate 4b corresponding to 13A of subsided region 4L individually .. According to this, when the thermal power of the burners 108 and 109 of the upper and lower heats is reduced to low heat, the gas that has passed through the low heat hole corresponding to the gas type used in the fixed plate main body 4a is the gas used in the orifice plate 4b. It is possible to solve the problem that the gas flows to the low heat hole corresponding to the gas type other than the seed, and it becomes impossible to narrow down the appropriate amount of gas according to the gas type used. The packing 4c has a connection space between the high heat hole 41Ua in the upper heat region 4U of the fixed plate main body 4a and the high heat hole 41Ub in the upper heat region 4U of the orifice plate 4b, and the lower heat region 4L of the fixed plate main body 4a. A bead 4d that individually surrounds the connection space between the high heat hole 41La and the high heat hole 41Lb in the lower heat region 4L of the orifice plate 4b is also provided.

Further, the packing 4c is molded so as to wrap the orifice plate 4b. Then, as shown in FIG. 7, a bead 4e that individually surrounds the upper heat region 4U and the lower heat region 4L is provided in the portion of the packing 4c located on the lower surface side of the orifice plate 4b. Thus, over the fire area 4U opened in the high heat hole 41Ub and simmer hole _42U 1 b of the orifice plate 4b, or flow subsided gas outflow chamber 13 gas that has passed through 42U ₂ b, the orifice plate 4b It is possible to prevent the gas that has passed through the high heat holes 41 Lb and the low heat holes 42L ₁ b and 42 _{L 2} b provided in the lower heat region 4 L from flowing into the upper heat gas outflow chamber 12.

With reference to FIG. 8, in the rotating plate 3, the first valve hole 31 overlaps the high heat hole 41U of the upper heat region 4U of the fixed plate 4, and the thermal power of the upper heat burner 108 is set to high heat, and the second valve hole 32 is The rotation position of the thermal power adjustment 1 that overlaps the low heat hole 42L in the low heat area of the fixed plate 4 and reduces the thermal power of the low heat burner 109, and the first valve hole 31 is both the high heat and the low heat of the fixed plate 4. The rotation position of the thermal power adjustment 2 that overlaps the high heat holes 41U and 41L of the areas 4U and 4L and makes both the heat power of the upper heat burner 108 and the heat power of the lower heat burner 109 high, and the first valve hole 31 is the fixing plate 4 The lower heat area 4L overlaps with the high heat hole 41L to make the lower heat burner 109 a high heat, and the second valve hole 32 overlaps the low heat hole 42U of the upper heat area 4U of the fixing plate 4, and the upper heat burner 108 The rotation position of the thermal power adjustment 3 and the first valve hole 31 overlap with the low heat holes 42U and 42L of both the upper and lower heat regions 4U and 4L of the fixing plate 4, and the upper heat burner 108 The rotation position of the thermal power adjustment 4 that reduces both the thermal power of the lower heat and the lower heat of the burner 109 and the second valve hole 32 overlap with the high heat hole 41U of the upper heat region 4U of the fixing plate 4, and the thermal power of the upper heat burner 108 The first and second valve holes 31 and 32 do not overlap with either the high heat or low heat holes 41L and 42L of the lower heat region 4L of the fixing plate 4 and extinguish the lower heat burner 109. The rotation position of the thermal power adjustment 5 and the first valve hole 31 overlap with the low heat hole 42U of the upper heat area 4U of the fixing plate 4 to reduce the thermal power of the upper heat burner 108 to low heat, and both the first and second valve holes. 31 and 32 can be switched to the rotation position of the thermal power adjustment 6 for extinguishing the lower heat burner 109 without overlapping the holes 41L and 42L for high heat and low heat in the lower heat region 4L of the fixed plate 4. .. At the rotation position of the thermal power adjustment 5, the first valve hole 31 overlaps the low heat hole 42U of the upper heat region 4U of the fixing plate 4, but if the first valve hole 31 overlaps the low heat hole 42U. Even if it is not present, the second valve hole 32 overlaps with the high heat hole 41U, so that the thermal power of the upper heat burner 108 becomes high heat.

By the way, in the case of general grill cooking using the grill 105, the heating power of the upper and lower heat burners 108 and 109 is increased or decreased while both the upper heat burner 108 and the lower heat burner 109 are burned. Switch to. However, when the plate is cooked using the grill plate 104, the combustion exhaust gas of the lower heat burner 109 stays below the grill plate 104. Therefore, once the temperature of the grill plate 104 rises, the thermal power of the lower heat burner 109 is increased. Even if the heat is low, the temperature of the grill plate 104 does not easily drop, and the lower surface of the object to be cooked tends to be scorched. Therefore, when the detection temperature of the temperature sensor 115 exceeds a predetermined upper limit temperature during the execution of plate cooking, the rotating plate 3 is switched to the rotating position of the heating power adjustment 5 or 6 to extinguish the lower heat burner 109. I am trying to do it.

Here, the rotation position of the rotary plate 3 for switching the thermal powers of the upper and lower heat burners 108 and 109 to low heat, that is, the thermal power adjustment 1 for switching the thermal power of at least one of the upper heat burner 108 and the lower heat burner 109 to low heat. Each of the rotation positions 3, 4, and 6 has two rotation positions, one for LPG and the other for 13A. At the rotation position for LPG of the thermal power adjustment 1, the second valve hole 32 _{overlaps with the low heat hole 42L 1} corresponding to the LPG of the lower heat region 4L of the fixing plate 4, and at the rotation position for 13A, the second valve hole 32. _{Overlaps the low heat hole 42L 2} corresponding to 13A in the lower heat region 4L of the fixing plate 4. At the rotation position for LPG of the thermal power adjustment 3, the second valve hole 32 _{overlaps with the low heat hole 42U 1} corresponding to the LPG of the upper heat region 4U of the fixing plate 4, and at the rotation position for 13A, the second valve hole 32. _{Overlaps the low heat hole 42U 2} corresponding to 13A of the top heat region 4U of the fixing plate 4. _{At the rotation position for LPG of the thermal power adjustment 4, the first valve hole 31 overlaps with the low heat holes 42U 1} , 42L ₁ corresponding to the LPG of both the upper and lower heat regions 4U and 4L of the fixing plate 4, and is for 13A. At the rotational position of, the first valve hole 31 overlaps _{the low heat holes 42U 2} and 42L ₂ corresponding to 13A of both the upper and lower heat regions 4U and 4L of the fixing plate 4. At the rotation position for LPG of the thermal power adjustment 6, the first valve hole 31 _{overlaps with the low heat hole 42U 1} corresponding to the LPG of the upper heat region 4U of the fixing plate 4, and at the rotation position for 13A, the first valve hole 31 _{Overlaps the low heat hole 42U 2} corresponding to 13A of the top heat region 4U of the fixing plate 4.

Then, according to the present embodiment, when the gas type is changed, the internal parts of the valve are replaced by changing the rotation positions of the thermal power adjustments 1, 3, 4, and 6 of the rotating plate 3 according to the gas type to be used. You can deal with it without any problems. Therefore, workability when changing the gas type is improved.

Although the embodiments of the present invention have been described above with reference to the drawings, the present invention is not limited thereto. _{For example, in the above embodiment, the holes 42U 1} , 42L ₁ and 13A corresponding to LPG are provided as the holes 42U and 42L for low heat in the upper and lower heat regions 4U and 4L of the fixing plate 4, and the holes 42U _{2 correspond to the holes 42U 1, 42L 1 and 13A.} , 42L ₂ is opened, but holes corresponding to gas types other than LPG and 13A may be further opened. Further, in the above embodiment, the thermal power of each of the upper and lower heat burners 108 and 109 is switched to two stages of strength and weakness, but it is also possible to switch to three stages of strong, medium and weak or more. be. In this case, a plurality of holes corresponding to a plurality of gas types may be provided as medium heat holes in the upper and lower heat areas 4U and 4L of the fixing plate 4, as in the case of the low heat holes 42U and 42L. .. Further, although the double-sided grill 100 is provided with an afterburner 116, the present invention can be similarly applied to a thermal power control valve for a double-sided grill not provided with an afterburner.

A ... Thermal power control valve, 1 ... Valve housing, 11 ... Gas inflow chamber, 12 ... Top heat gas outflow chamber, 13 ... Lower heat gas outflow chamber, 2 ... Motor, 3 ... Rotating plate, 31, 32 ... Valve holes 4, 4 ... Fixed plate, 4a ... Fixed plate body, 4b ... orifice plate, 4c ... Packing, 4d ... Bead, 4U ... Top heat area, 4L ... Bottom heat area, 41U, 41L ... Top heat and bottom heat area High heat holes to be opened, 42U, 42L ... Low heat holes to be opened in each area of top and bottom heat, 42U ₁ , 42L ₁ ... Low heat holes corresponding to LPG, 42U ₂ , 42L ₂ ... Low heat corresponding to 13A Holes, 42U ₁ a, 42U ₂ a, 42L ₁ a, 42L ₂ a ... Low heat holes to be opened in the fixed plate body, 42U ₁ b, 42U ₂ b, 42L ₁ b, 42L ₂ b ... Opened in the orifice plate Low heat hole, 100 ... double-sided grill, 108 ... top heat burner, 109 ... bottom heat burner.

Claims (1)

A thermal power control valve for a double-sided grill that has an upper heat burner and a lower heat burner. A valve housing having a chamber, a rotary plate rotationally driven by a motor facing the gas inflow chamber, and a fixing plate in contact with the rotary plate facing both the upper and lower fire burner gas outflow chambers. A valve hole is opened in the rotating plate, and the area facing the gas outflow chamber for the upper fire burner and the area facing the gas outflow chamber for the lower fire burner of the fixed plate are designated as the upper heat area and the lower heat area, respectively. In order to switch the thermal power of each burner of the upper and lower heats to at least two stages of high and low in each area of the upper and lower heats of the fixed plate, at least two of the high heat hole and the low heat hole are used as gas passage holes. Various types of holes are opened, and among the gas passage holes in each area of the upper and lower heats of the fixed plate, the holes that are opened overlapping the valve holes are switched by the rotation of the rotating plate, and each of the upper and lower heats. In the one where the firepower of the burner can be switched,
In each area of the upper and lower heat of the fixed plate, multiple holes corresponding to multiple gas types are opened as holes for low heat, and the rotation of the rotating plate that switches the thermal power of each burner of the upper and lower heat to low heat. The position is changed according to the gas type to be used so that the valve hole overlaps the hole corresponding to the gas type to be used among the low heat holes in each area of the upper and lower heats of the fixing plate .
The fixing plate is composed of a fixing plate main body in contact with the rotating plate and an orifice plate that overlaps the fixing plate main body via packing, and corresponds to a plurality of gas types opened in each region of the top and bottom heat of the orifice plate. Multiple low-heat holes are composed of orifice holes that exert a squeezing effect, and multiple low-heat holes corresponding to multiple gas types to be opened in each area of the upper and lower heats of the fixing plate body are opened more than the orifice holes. It is composed of holes with a large area, and the packing is provided with beads that individually enclose the connection space between the low heat hole corresponding to each gas type of the fixing plate body and the low heat hole corresponding to each gas type of the orifice plate. The characteristic thermal power control valve for double-sided grill.

Images