Combustion Device for a Wind-Resistant Outdoor Burner

Abstract

A combustion device for a wind-resistant outdoor burner includes a housing having a gas mixing chamber with an inlet portion and an outlet portion. A guiding device includes a gas mixing tube, a guiding member, and a diffusing board. The gas mixing tube is connected to the inlet portion and includes a first end located outside of the housing and a second end located in the gas mixing chamber. The guiding member is porous, is mounted in the gas mixing chamber, and is aligned with and spaced from the second end of the gas mixing tube. The diffusing board is connected to the outlet portion and includes a first side, a second side opposite to the first side, and a plurality of vents extending from the first side through the second side and intercommunicated with the gas mixing chamber of the housing.

1 . A combustion device for a wind-resistant outdoor burner comprising:
 a housing including a gas mixing chamber, wherein the gas mixing chamber includes an outlet portion at a side thereof and an inlet portion at another side thereof;   a guiding device including a gas mixing tube, a guiding member, and a diffusing board, wherein the gas mixing tube is connected to the inlet portion and includes a first end located outside of the housing and a second end opposite to the first end and located in the gas mixing chamber, wherein the guiding member is mounted in the gas mixing chamber and is aligned with the second end of the gas mixing tube, wherein the guiding member is spaced from the second end of the gas mixing tube by a spacing and is porous, wherein the diffusing board is connected to the outlet portion and includes a first side and a second side opposite to the first side, wherein the diffusing board includes a plurality of vents extending from the first side through the second side of the diffusing board, and wherein the plurality of vents intercommunicates with the gas mixing chamber of the housing.   
     
     
         2 . The combustion device for the wind-resistant outdoor burner as claimed in  claim 1 , wherein the guiding member extends perpendicularly to a longitudinal direction of the gas mixing tube and is in a form of a mesh having a plurality of holes. 
     
     
         3 . The combustion device for the wind-resistant outdoor burner as claimed in  claim 1 , wherein the plurality of vents of the diffusing board is located in a span of the gas mixing chamber. 
     
     
         4 . The combustion device for the wind-resistant outdoor burner as claimed in  claim 1 , wherein the housing includes a bottom side opposite to outlet portion, wherein a maximum spacing between the outlet portion and the bottom side forms a first depth, wherein a spacing between the outlet portion and the bottom side at an end of the housing opposite to the inlet portion forms a second depth, and wherein the second depth is smaller than the first depth. 
     
     
         5 . The combustion device for the wind-resistant outdoor burner as claimed in  claim 4 , wherein the bottom side of the housing includes a planar section and an inclined section, wherein the planar section is adjacent to the inlet portion and has a uniform spacing to the outlet portion, wherein the inclined section is connected to an end of the planar section opposite to the inlet portion, and wherein a spacing from the inclined section to the outlet portion gradually decreases from an end of the inclined section adjacent to the inlet portion to another end of the inclined section remote to the inlet portion. 
     
     
         6 . The combustion device for the wind-resistant outdoor burner as claimed in  claim 5 , wherein the housing includes a first sidewall at the inlet portion, wherein the first sidewall has a first through-hole, wherein the housing further includes a second sidewall and a third sidewall respectively on two sides of the first sidewall, wherein the housing further includes a fourth sidewall opposite to the inlet portion, wherein the first sidewall, the second sidewall, the third sidewall, and the fourth sidewall are fixed to the bottom side, and wherein the guiding member includes three sides respectively connected to the bottom side, the second sidewall, and the third sidewall and extends from the bottom side to the outlet portion. 
     
     
         7 . The combustion device for the wind-resistant outdoor burner as claimed in  claim 6 , further comprising an inclined board mounted in the gas mixing chamber, wherein the inclined board includes a first end connected to the bottom side and a second end connected to the first sidewall, wherein the inclined board further includes two opposite sides respectively connected to the second sidewall and the third sidewall, wherein a spacing from the inclined board to the outlet portion gradually increases from the second end of the inclined board to the first end of the inclined board, wherein the inclined board has a second through-hole aligned with the first through-hole, and wherein the gas mixing tube extends through the first through-hole and the second through-hole. 
     
     
         8 . The combustion device for the wind-resistant outdoor burner as claimed in  claim 7 , wherein the housing further includes a ledge and an outer frame, wherein the ledge is annular and is fixed to sides of the first sidewall, the second sidewall, the third sidewall, and the fourth sidewall which are opposite to the bottom side, wherein the ledge extends away from the gas mixing chamber, wherein the outer frame is annular and is fixed to an outer side of the ledge, wherein the outer frame extends from the ledge in a direction away from the bottom side, wherein the first side of the diffusing board faces the gas mixing chamber and abuts the ledge, and wherein the outer frame surrounds and abuts the diffusing board. 
     
     
         9 . The combustion device for the wind-resistant outdoor burner as claimed in  claim 7 , further comprising a reinforcing member mounted in the gas mixing chamber, wherein the reinforcing member includes an end fixed to the second sidewall and another end fixed to the third sidewall, and wherein a spacing from the reinforcing member to the first sidewall is 0.9-1.1 times a spacing from the reinforcing member to the fourth sidewall. 
     
     
         10 . The combustion device for the wind-resistant outdoor burner as claimed in  claim 8 , wherein the guiding device further includes a first spacer abutting the second side of the diffusing board and extending away from the housing, wherein the first spacer is located in a distribution area of the plurality of vents of the diffusing board, and wherein the distribution area of the plurality of vents is divided by the first spacer into two sections. 
     
     
         11 . The combustion device for the wind-resistant outdoor burner as claimed in  claim 10 , wherein the first spacer includes a first end adjacent to the inlet portion and a second end opposite to the inlet portion, wherein the guiding device further includes a plurality of second spacers abutting the second side of the diffusing board and extending away from the housing, wherein the plurality of second spacers is located in the distribution area of the plurality of vents of the diffusing board, and wherein the first spacer intersects with each of the plurality of second spacers. 
     
     
         12 . The combustion device for the wind-resistant outdoor burner as claimed in  claim 11 , wherein the guiding device further includes at least one ceramic plate disposed on a side of the diffusing board opposite to the housing, wherein the outer frame surrounds and abuts the diffusing board and the at least one ceramic plate, wherein the at least one ceramic plate includes a plurality of through-holes, wherein each of the plurality of through-holes extends from a side of the at least one ceramic plate adjacent to the diffusing board to another side of the at least one ceramic plate opposite to the diffusing board, and wherein the at least one ceramic plate abuts the first spacer and the plurality of second spacers. 
     
     
         13 . The combustion device for the wind-resistant outdoor burner as claimed in  claim 12 , wherein the at least one ceramic plate includes a plurality of ceramic plates, wherein the plurality of ceramic plates is disposed on the side of the diffusing board opposite to the housing and is arranged from a location adjacent to the inlet portion to another location remote to the inlet portion, wherein the outer frame surrounds and abuts the diffusing board and the plurality of ceramic plates, wherein each of the plurality of ceramic plates includes the plurality of through-holes extending therethrough, and wherein each of the plurality of ceramic plates abuts the first spacer and the plurality of second spacers. 
     
     
         14 . The combustion device for the wind-resistant outdoor burner as claimed in  claim 13 , further comprising an igniter mounted in the outlet portion, wherein the igniter is located on a side of one of the plurality of ceramic plates. 
     
     
         15 . The combustion device for the wind-resistant outdoor burner as claimed in  claim 1 , wherein the outlet portion and the inlet portion intercommunicate with the gas mixing chamber, wherein the inlet portion is disposed on a side of the housing contiguous to the outlet portion, wherein the gas mixing chamber of the housing is sealed except at the outlet portion and the inlet portion, wherein the gas mixing tube further includes a neck between the first end and the second end, and wherein a cross sectional area of the neck perpendicular to the longitudinal direction of the gas mixing tube is smaller than a cross sectional area of the first end or the second end of the gas mixing tube perpendicular to the longitudinal direction of the gas mixing tube.