The present invention relates to a gas burner assembly (10), in particular for a gas cooking appliance, preferably for a domestic gas cooking hob. The present invention further relates to such a gas cooking appliance comprising at least one gas burner assembly (10). The gas burner assembly (10) comprises a burner head (12) including a plurality of high-power flame ports (32). The gas burner assembly (10) comprises at least one intermediate element (14, 16) including a plurality of low-power flame ports (38). The burner head (12) is arranged above the at least one intermediate element (14, 16). The high-power flame ports (32) are connected to a first gas inlet (30) via a horizontal Venturi pipe (22). The low-power flame ports (38) are connected to a second gas inlet (52) via an annular distribution chamber (46). The low-power flame ports (38) and the high-power flame ports (32) are located on different parts of the gas burner assembly (10) and arranged in super-imposed way. According to a first aspect of the invention, the gas burner assembly (10) comprises at least one base part (20) arranged beneath the at least one intermediate element (14, 16), wherein at least one low-power injector (18), at least one pre-mixing chamber (48) and preferably the second gas inlet (52) are integrated within said base part (20). According to a second aspect of the invention, the gas burner assembly (10) is arranged in the gas cooking appliance in that way that the primary fresh air for the high-power flame ports (32) is sucked from the bottom side and the primary fresh air for the low-power flame ports (38) is sucked from the top side of a work plate (54) of the gas cooking appliance.

A burner including a burner tube including a side wall, a first longitudinal end configured for receiving a fuel mixture flow, a closed second longitudinal end, a chamber defined by the interior flow space of the burner tube, the cross-sectional area of the burner tube is larger at the first longitudinal end than the cross-sectional area of the burner tube at the second longitudinal end; and a plate disposed on the first longitudinal end, isolating the chamber from a space upstream of the chamber, the plate further includes a plurality of openings disposed in a spiral format on the plate and a plurality of baffles, each baffle coupled to one of the plurality of openings of the plate, each of the plurality of baffles is configured to direct a portion of the fuel mixture flow through one of the openings from the space upstream of the chamber into the chamber.

A cooking appliance includes a cooking area. A hob can be located in the cooking area. The hob includes an injector holder base defining an air chamber and a burner interface chamber. An injector holder cover overlies the injector holder base. The injector holder base and the injector holder cover collectively define a venturi tube extending between the air chamber and the burner interface chamber. An injector is carried by at least one of the injector holder base or injector holder cover. A burner is supported on the injector holder cover.

A burner of a gas stove includes a burner body, a partition member, and at least one flame cover. The burner body includes an inlet portion and a base. The inlet portion has at least one inlet passage for injecting gas and air, and the base has at least one mixture passage for mixing the gas and the air. The at least one mixture passage communicates with the at least one inlet passage. The partition member has a plurality of through holes and covers the at least one mixture passage. The at least one flame cover has a plurality of flame holes and covers the partition member. Whereby, the size of the burner of the gas stove could be reduced significantly, and the gas could mix with the air effectively and uniformly.

A gas burner device includes an orifice holder including an orifice. The gas burner device also includes a burner body. The burner body includes a venturi tube arranged to receive a gas from the orifice and a burner port discharging the gas supplied through the venturi tube. The venturi tube includes a venturi inlet through which the gas that is jetted from the orifice flows in. The venturi tube also includes a venturi outlet through which the gas flowing in through the venturi inlet is discharged. The venturi tube further includes an acceleration part including a smaller diameter than the venturi inlet and the venturi outlet and includes a cylindrical shape.

A gas cooking assembly comprises: (a) a base part (10) comprising: (a1) a burner body (14) for installation in a cooktop surface (16); (a2) a gas outlet (20) in the burner body (14); and (a3) an ignition source (22) in the burner body (14); and (b) an upper part (12) comprising: (b1) at least one foot (36) for supporting the upper part (12) on the cooktop surface (16); (b2) a grate (26) for supporting a cooking vessel; (b3) an annular flame spreader (28); and (b4) a gas inlet (46) at the bottom side of the flame spreader (28); wherein the upper part (12) is an integral unit that is removable from the base part (10), wherein when the upper part (12) is connected to the base part (10), the gas inlet (46) of the upper part (12) connects to the gas outlet (20) of the base part (10).

The present device relates to a system of gas burners, in particular for a cooking top for household use and including a pair of substantially concentric burners. The pair of burners including an outer burner equipped with a first base, a first burner body and a first flame divider, and an inner burner equipped with a second base, a second burner body and a second flame divider. The present device is characterized in that the first base of the outer burner and the second base of the inner burner are made from a metallic sheet that is shaped by deep drawing.

A cooktop appliance includes a top panel. A gas burner assembly includes an annular burner body positioned on the top panel at a top surface of the top panel. The annular burner body defines a central combustion zone. The annular burner body also defines a plurality of flame ports at the central combustion zone. Gaseous fuel is flowable from a fuel chamber within the annular burner body into the central combustion zone through the plurality of flame ports. The gas burner assembly further includes features for direction the gaseous fuel into the fuel chamber of the annular burner body. The annular burner body is open at the central combustion zone such that the top panel is exposed through the annular burner body at the central combustion zone.

A multi flame-ring gas burner for cooktops includes a lower burner body configured to receive at least two injectors facing Venturi ducts; a first burner base with a first cap and with openings for a central flame ring; and a second burner base with a second annular cap and openings for an outer annular flame ring. The lower burner body has a seat for a spark plug interacting with the first burner base; two cylindrical seats having substantially horizontal and parallel axes accommodating two tubular elements internally shaped like linear Venturi ducts; and a substantially tubular portion projecting upward, the first burner base being integral with the projecting tubular portion. An injector-holder unit is applicable to the lower burner body and has two portions that are removably insertable into corresponding through holes in the lower burner body and facing the tubular elements internally shaped like linear Venturi ducts.

The present device relates to a system of gas burners, in particular for a cooking top for household use and including a pair of substantially concentric burners. The pair of burners including an outer burner equipped with a first base, a first burner body and a first flame divider, and an inner burner equipped with a second base, a second burner body and a second flame divider. The present device is characterized in that the first base of the outer burner and the second base of the inner burner are made from a metallic sheet that is shaped by deep drawing.