Abstract:
A gas burner for a domestic cooktop of the type having a burner cup suitable to be fixed to the cooktop and provided with at least part of the structure for at least one primary-air gas mixer, a burner body that may be joined to the burner cup, the burner body having at least part of the structure for at least one primary air-gas mixture delivery chamber, and a burner cover that may be joined to the burner body to complete the at least one primary-air gas mixture delivery chamber, as web as at least one flame-spreader that is made in one piece with the burner cover. Advantageously, the burner cover and the at least one flame-spreader are made of a steel, or iron, or iron-alloy sheet.
Abstract:
Gas burner (1) for a cooking hob (14) comprising: a burner cup (2) constrained to the cooking hob, onto which at least one burner body (3) is mounted, and at least one superior cover (5), which can be removably coupled to said burner body, as well as at least one annular flame diffuser (4), designed to produce at least one flame crown. The burner is also provided with means (9, 9′, 10) for reversibly fixing the superior cover to the burner cup. The reversible fixing means comprise at least one male part (9, 9′) integral to the cup and at least one female part (10) integral to the cover, or vice-versa, in which the male part can be inserted into the female part and is movable within the female part between at least one reciprocal holding position and at least one reciprocal release position.
Abstract:
Gas burner (1) for oven, or grill, of the type comprising a Venturi tube (2) for mixing fuel gas and primary air, a main distribution chamber (3), longitudinally extended in the flow forwarding direction of the mixture, and located downstream to such a Venturi tube (2), as well as at least one delivery chamber (22a, 22b) placed outside the afore said main chamber (3), and provided with flame holes (4; 4a, 4b, 4c, 4d) for the gas-primary air mixture outflow, such a main chamber (3) and such an outer chamber (22a, 22b) being reciprocally fluidically connected, for at least one longitudinal length of the same main chamber (3), by at least one through opening (16a, 16b, 17a, 17b). Advantageously, the afore said through opening (16a, 16b, 17a, 17b) has, relative to the forwarding longitudinal direction of the mixture flow, a greater cross section in the upstream portion and smaller cross section in the downstream portion of the afore said longitudinal length of the main chamber (3).
Abstract:
A gas burner for a domestic cooktop of the type having a burner cup suitable to be fixed to the cooktop and provided with at least part of the structure for at least one primary-air gas mixer, a burner body that may be joined to the burner cup, the burner body having at least part of the structure for at least one primary air-gas mixture delivery chamber, and a burner cover that may be joined to the burner body to complete the at least one primary-air gas mixture delivery chamber, as web as at least one flame-spreader that is made in one piece with the burner cover. Advantageously, the burner cover and the at least one flame-spreader are made of a steel, or iron, or iron-alloy sheet.
Abstract:
Gas burner of the type having a cup of the burner accommodating at least one injector for fuel gas, a head of the burner coupled to the cup and including at least one distribution chamber for a first circumferential flame spreader, a mixing chamber for mixing primary air and fuel gas to set up a fuel mixture, the mixing chamber being fluidically connected to the cup and an injector, a duct for transferring the fuel mixture from the mixing chamber into the distribution chamber, and inflow duct of the primary air from the outer environment inside the cup of the burner, as well as a separating element of the transferring duct of the fuel mixture from the inflow duct of the primary air, wherein the separating element could be tightly constrained to the head, or cup of the burner.
Abstract:
Method for manufacturing a gas burner of the type comprising a cup, provided with at least one tubular tapered part of a mixer with axial Venturi effect, and shaped to couple with a burner head provided with at least one flame-spreader, wherein said cup is made in a single piece by casting or die-casting in an apposite mold. Such a method comprises, in sequence, the following steps: a) arranging a mold with at least two shells, for casting or die-casting the afore said cup; b) arranging at least one core which could be removably inserted into the respective mold, which has at feast one jutting portion shaped with at least one tubular tapered part of the stickle of the afore said mixer with axial Venturi effect; c) inserting such a core into the mold and closing the afore said at least two mold shells so that the afore said at least one jutting portion of the core is retained, at least partially, at a distance from the opposite inner walls of the closed mold; the core and the mold being shaped so that at least one ending part of such a core replaces, at least partially, part of the perimetrical area of the cup defined by the mold; d) pouring or pressure-injecting molten metal material into the closed mold; e) opening the mold, drawing out the afore said core and then removing the die formed cup after the metal material is solidified; f) applying at least one closing plug to the side hole (or side holes) of the die formed cup which corresponds/correspond to the ending part of the core which replaced part of the perimetrical area of the cup in the mold.
Abstract:
Gas burner for oven, or grill, of the type comprising at least one Venturi tube (16), for forming the fuel mixture of primary air-gas, having at least one zone with a reduced section followed by a zone with a diverging section, at least one distribution chamber (17) of the fuel mixture, placed downstream the zone with a diverging section of the Venturi tube (16), and a plurality of flame openings (19) for the outflow of the fuel mixture, obtained within such a distribution chamber (17), or in fluidic communication with the latter, as well at least one ignition hole (13) for igniting the burner. Advantageously the latter comprises at least one diversion duct (12) for part of the flow of the fuel mixture, exhibiting its own inlet section obtained in a sector downstream the zone with a reduced section of the Venturi tube (16), and its own outlet section placed at the afore said ignition hole (13).
Abstract:
A flame ignition device for a gas burner is described, comprising at least one ignition circuit and electric switching means that are associated with the gas tap for the respective burner. The electric switching means include at least one electric contact member (50) which is integral, at least in translation, with the control rod of said gas tap.
Abstract:
A gas burner for cookers of the type fitted to a cooking hob includes a central body having a first flame distribution ring and at least one external body, fluidly separated from the central body and substantially concentric with it, having at least one second flame distribution ring. In addition, structure is provided for separately feeding the mixture of primary air and gas to the central body and to the external body. This structure includes at least one horizontal mixing chamber with a radial Venturi effect.
Abstract:
A cooking hob has a supporting surface made of a material the physical characteristics or the structure of which are degradable in the proximity of heat sources, such as, for example, tempered glass, and is provided with at least one hole, within which is housed at least partially an atmospheric gas burner, of the type comprising a burner base and a burner head with at least one flame crown. The burner further comprises a circumferential ring set between the flame crown and the supporting surface made of degradable material.