TECHNICAL FIELD
The present disclosure relates, generally, to an energy saving jet burner for a gas stove. More particularly, the present disclosure pertains to a burner for a gas stove that facilitate a desired mixing of an air and a gaseous fuel.
BACKGROUND
Various types of commercial gas stoves burn a gaseous fuel exiting a burner in the presence of air. For burning the gaseous fuel, air mixes with the fuel after ejection from the burner. However, in such cases, a desired mixing of the air and gaseous fuel is not achieved. This leads to the inefficient combustion of the gaseous fuel, which may cause a discharge of a part of the gaseous fuel to the environment. Accordingly, an efficiency of the burner decreases, which is undesirable.
SUMMARY
According to an aspect of the disclosure a burner for a gas stove is disclosed. The burner includes an outer shell having a first longitudinal end and a second longitudinal end, an inlet conduit, an inner shell, a cover plate, and a vane assembly. The inlet conduit is arranged coaxially and inside the outer shell and extends from the first longitudinal end towards the second longitudinal end. Further, the inlet conduit defines an inlet port at the first longitudinal end to facilitate an entry of an air and a gas inside the inlet conduit. Additionally, the inner shell is arranged coaxially to the outer shell and the inlet conduit and is arranged between the inlet conduit and the outer shell. A first outlet channel is defined between the inlet conduit and inner shell and a second outlet channel is defined between the inner shell and the outer shell. Moreover, the inner shell defines at least one opening arranged proximate to the first longitudinal end to facilitate a flow of an air gas mixture from the first outlet channel to the second outlet channel. The flow plate is coupled to the inlet conduit and includes a plurality of guide blades arrayed circularly around a central axis and defines a plurality of passages therebetween. Each blade extends radially outwardly from the inlet conduit to the inner shell and includes a flat portion and a guide portion extending obliquely and downwardly towards the first longitudinal end from the flat portion to facilitate a swirling of an air gas mixture exiting the passages.
According to another aspect of the disclosure a burner for a gas stove is disclosed. The burner includes an outer shell having a first longitudinal end and a second longitudinal end, an inlet conduit, an inner shell, a cover plate, and a vane assembly. The inlet conduit is arranged coaxially and inside the outer shell and extends from the first longitudinal end towards the second longitudinal end. Further, the inlet conduit defines an inlet port at the first longitudinal end to facilitate an entry of an air and a gas inside the inlet conduit. Additionally, the inner shell is arranged coaxially to the outer shell and the inlet conduit and is arranged between the inlet conduit and the outer shell. A first outlet channel is defined between the inlet conduit and inner shell and a second outlet channel is defined between the inner shell and the outer shell. Moreover, the inner shell defines at least one opening arranged proximate to the first longitudinal end to facilitate a flow of an air gas mixture from the first outlet channel to the second outlet channel. The flow plate is coupled to the inlet conduit and includes a plurality of guide blades arrayed circularly around a central axis and defines a plurality of passages therebetween. Each blade extends radially outwardly from the inlet conduit to the inner shell and includes a flat portion and a guide portion extending obliquely and downwardly towards the first longitudinal end from the flat portion to facilitate a swirling of an air gas mixture exiting the passages. Furthermore, the cover plate is attached to an end of the inner shell and is arranged at a distance from the flow plate defining an intake chamber therebetween to receive an air gas mixture from the inlet conduit. The air gas mixture flows to the first outlet channel from the inlet chamber through the plurality of passages. Also, the vane assembly is arranged coaxially and inside the outer shell and extends from the cover plate to the second longitudinal end of the outer shell. The vane assembly includes a plurality of guide vanes arranged circularly around a central axis and defining a plurality of radially extending outlet passages therebetween to allow a flow of air gas mixture from the second outlet channel to an inside of the vane assembly.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 illustrates a perspective view of a burner, in accordance with an embodiment of the disclosure;
FIG. 2 illustrates an exploded e view of the burner, in accordance with an embodiment of the disclosure; and
FIG. 3 illustrates a front sectional view of the burner of FIG. 1, in accordance with an embodiment of the disclosure.
DETAILED DESCRIPTION
Referring to FIG. 1, a burner 100 suitable for a gas stove is shown. The burner 100 includes an outer shell 102 (i.e., outer cover 102) for covering various components of the burner 100 and may be made of a sheet metal. As shown in FIG. 1 and FIG. 2, the outer shell 102 includes a first longitudinal end 104 (i.e., lower end 104), a second longitudinal end 106 (i.e., upper end 106), a bottom cover 108 extending from the lower end 104 towards the upper end 106, and an upper cover 110 extending axially from the bottom cover 108 to the upper end 106. As shown in FIG. 2, the bottom cover 108 includes a base 112 defining a central opening 114 and a sidewall 116 extending upwardly from the base 112 and circularly around a central axis 120 of the burner 100. In an embodiment, the sidewall 116 may extend around the central axis 120 such that the sidewall 116 includes a substantially truncated cone shape with the cone diverging from the lower end 104 to the upper cover 110. Similar to the bottom cover 108, the upper cover 110 includes a top plate 122 defining a central hole 124 and a sidewall 126 extending downwardly from an outer edge of the top plate 122 and circularly around the central axis 120 of the burner 100. Accordingly, the top plate 122 is arranged at the upper end 106 of the outer shell 102, and extends radially inwardly from an upper edge of the sidewall 126. As shown, the sidewall 126 includes a cylindrical shape and extends from the top plate 122 to the bottom cover 108 and is connected to the bottom cover 108.
Further, referring to FIG. 2 and FIG. 3, the burner 100 includes an inlet conduit 130, an inner shell 132, a flow plate 134, a cover plate 136, and a vane assembly 138 arranged within/inside the outer shell 102. As shown in FIG. 3, the inlet conduit 130 is arranged coaxially to the outer shell 102 and is disposed inside the outer shell 102 such that the bottom cover 108 surrounds the inlet conduit 130. As shown, the inlet conduit 130 extends from an inner edge 139 of the base 112 of the bottom cover 108 towards the upper end 106, and defines an inlet port 140 at the lower end 104 of the outer shell 102 and an outlet port 142 (best shown in FIG. 2) arranged distally from the base 112. The inlet port 140 facilitates an entry of an air and a gaseous fuel (i.e. gas), such as, natural gas, liquified petroleum gas, etc., inside the burner 100. For so doing, a gas supply conduit (not shown) may be attached to the inlet port 140 of the inlet conduit 130. In an embodiment, the inlet conduit 130 may include a convergent portion 144 that converges towards the outlet port 142 to increase a velocity of an air and gas mixture exiting the inlet conduit 130. As shown in FIG. 3, the inlet conduit 130 is arranged inside the inner shell 132.
Referring to FIG. 3, the inner shell 132 is arranged inside the outer shell 102 and outside the inlet conduit 13 such that the inner shell 132 surrounds the inlet conduit 130. As such, the inner shell 132 is arranged coaxially to the inlet conduit 130 and is arranged at a radial distance from the inner shell 132, thereby defining a first outlet channel 146 therebetween. Similarly, the inner shell 132 is arranged coaxially to the outer shell 102 and is arranged at a radial distance from the outer shell 102, thereby defining a second outlet channel 148 therebetween. Further, as shown, the inner shell includes a first end 150 fixedly attached to the base 112 and a second end 152 arranged proximate to the upper end 106 and at a distance from the upper end 106 of the outer shell 102. It can be seen that the inner shell 132 extends beyond the inlet conduit 130 towards the upper end 106 of the outer shell 102 such that the upper end 106 of the outer shell 102 is disposed proximate to the second end 152 of the inner shell 132 relative to the outlet port 142 of the inlet conduit 130. Moreover, the inner shell 132 defines at least opening 156 arranged proximate to the first end 150. Therefore, at least one opening 156 is disposed proximate to the base 112 of the bottom cover 108, and hence proximate to the lower end 104 of the outer shell 102. The at least one opening 156 facilitates an exit of the air gas mixture from the first outlet channel 146 to the second outlet channel 148.
Further, the flow plate 134 is fixedly coupled an upper end of the inlet conduit 130 and defines a central opening 160 (best shown in FIG. 2) arranged coaxially to the outlet port 142 of the inlet conduit 130. As shown in FIG. 2, the flow plate 134 includes a plurality of guide blades 162 extending radially outwardly of the central opening 160, and hence from the inlet conduit 130 to the inner shell 132 in an assembly. The guide blades 162 are arrayed circularly around a central axis of the flow plate 134, and hence, the central axis 120 of the burner 100 such that a plurality of passages 166 is defined therebetween. As such, a single passage 166 is defined between two adjacently arranged/disposed guide blades 162 to a facilitate a flow of air gas mixture exiting the inlet conduit 130 to the first outlet channel 146. As shown in FIG. 2, each guide blade 162 includes a flat portion 168 and a guide portion 170 extending downwardly and obliquely from the flat portion 168 towards base 112 of the bottom cover 108. As such, the guide portion 170 is arranged at an inclination to the flat portion 168 such that an obtuse angle ‘A’ is defined between the flat portion 168 and the guide portion 170. Also, the guide portion 170 of one guide blade 162 extends towards an adjacent guide blade 162 from the associated flat portion 168. The angle ‘A’ is selected to induce a sufficient rotation of swirling of the air gas mixture to enable a good/proper mixing of the air and the gas.
Referring back to FIG. 3, the cover plate 136 is attached to the second end 152 of the inner shell 132 and is arranged at a distance from the flow plate 134, defining an intake chamber 172 therebetween. As such the air gas mixture enters the intake chamber 172 from the inlet conduit 130 through the outlet port 142, and then enters the first outlet channel 146 from the intake chamber 172 through the plurality of passages 166 of the flow plate 134. As shown, the cover plate 136 includes a bottom 176 that is arranged facing the flow plate 134 and at a distance from the flow plate 134, defining the intake chamber 172 therebetween, a sidewall portion 178 extending outwardly and upwardly from the bottom 176 around the central axis 120 of the burner 100, and a flange portion 180 extending radially outwardly of the sidewall portion 178 from an upper edge of the sidewall portion 178. In an embodiment, the sidewall portion 178 includes a substantially truncated cone shape that diverges from the bottom 176 to the flange portion 180. As shown in FIG. 2, the flange portion 180 is connected to the inner shell 132 and is supported on the inner shell 132. As illustrated, the flange portion 180 may extend radially outwardly of the inner shell 132 towards the outer shell 102, and therefore may extend inside the second outlet channel 148.
As shown in FIG. 3, the vane assembly 138 is supported on the flange portion 180 of the cover plate 136 and extends from the flange portion 180 to the top plate 122 in an axial direction. As shown in FIG. 3, a first axial end 182 of the vane assembly 138 abuts the flange portion 180, while a second axial end 184 of the vane assembly 138 abuts the top plate 122. Accordingly, the vane assembly 138 is sandwiched between the flange portion 180 and the top plate 122 in the axial direction. As best shown in FIG. 2, the vane assembly 138 includes a plurality of guide vanes 188 arrayed circularly around a central axis that coincides with the central axis 120 of the burner 100 and thereby defines a central flame chamber 190. The guide vanes 188 are arranged and assembled such that a plurality of radially extending outlet passages 192 are defined between the plurality of guide vanes 188. The outlet passages 192 facilitate a flow of the air gas mixture from a gap 194 (shown in FIG. 3) defined between the outer shell 102 and an outer end 196 of the vane assembly 138 to the central flame chamber 190. Accordingly, the air gas mixture flows inside the gap 194 from the second outlet channel 148, and then moves radially inwardly through the outlet passages 192 inside the flame chamber 190. The guide vanes 188 are structures and arranged in such a manner that the air gas mixture after exiting the outlet passages 192 moves in a direction towards the bottom 176 of the cover plate 136.
A working of the burner 100 is now described. Gas and air enter the burner 100 through the inlet port 140 and move inside the inlet conduit 130 and exit into the intake chamber 172 though the outlet port 142 of the inlet conduit 130. A pre-mixing of the air and gas happens inside the inlet conduit 130 and the intake chamber 172. Form the intake chamber 172, the gas and air mixture move to the first outlet channel 146 through the plurality of passages 166 of the flow plate 134. As the air gas mixture exit the passages 166, a swirling motion is induced due to the arrangement of the guide portions 170 of the guide blades 162. Th swirling motion causes a proper and good mixing of the air and gas, and therefore a near homogenous air gas mixture is formed. Upon exiting the passages 166, the air gas mixture flows, downwardly towards the base 112, through the first outlet channel 146, and enters the second outlet channel 148 through the openings 156. Subsequently, the air gas mixture flow upwardly through the second outlet channel 148 and enters the gap 194. From the gap 194, the air gas mixture flows in a radial direction, along the outlet passages 192 of the vane assembly 138, and enters the flame chamber 190, and burns inside the flame chamber 190. Due to the proper mixing of the air and gas, a good combustion effect is achieved.
The foregoing descriptions of specific embodiments of the present disclosure have been presented for purposes of illustration and description. They are not intended to be exhaustive or to limit the present disclosure to the precise forms disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiment was chosen and described in order to best explain the principles of the present disclosure and its practical application, to thereby enable others skilled in the art to best utilize the present disclosure and various embodiments with various modifications as are suited to the particular use contemplated.
Patent Application
20210270457
