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.

The present invention relates to a casting die device and a casting method used to obtain a cast product in which an inner bore, at least one end of which is open, is formed. The casting die device has a core pin for forming the inner bore in the cast product, and a vibration-transmitting member for transmitting vibrations from a vibrator of a micro-vibration machine to the core pin. When casting is being performed, vibrations from the vibrator are imparted to the core pin by way of the vibration-transmitting member. The vibrations also propagate to sites surrounding the core pin, in molten metal that has been poured into a cavity.

The present invention relates to a casting die device and a casting method used to obtain a cast product in which an inner bore, at least one end of which is open, is formed. The casting die device has a core pin for forming the inner bore in the cast product, and a vibration-transmitting member for transmitting vibrations from a vibrator of a micro-vibration machine to the core pin. When casting is being performed, vibrations from the vibrator are imparted to the core pin by way of the vibration-transmitting member. The vibrations also propagate to sites surrounding the core pin, in molten metal that has been poured into a cavity.

A casting die of the present invention includes a stationary die, a movable die, and a sliding die provided to the movable die so as to be insertable and withdrawable in a direction crossing a movement direction of the movable die and configured to form a cavity in collaboration with the stationary die and the movable die. The sliding die includes a slider core that is moved so as to be insertable and withdrawable along the movement direction of the movable die and a stopper that is in contact with the slider core at a die closing position and locks the slider core.

A casting die device and a casting method. The casting die device has a core pin for forming an inner hole in a casted article. The core pin is a hollow body, and a pressurizing pin is inserted into a hollow inner part of the core pin. Vibrations from a vibrator of a micro vibration machine are imparted to the pressurizing pin via a vibration transmission member. The vibrations further propagate to the core pin from the pressurizing pin, and then propagate to the area surrounding the core pin in a molten metal that has been poured into a cavity.

A casting die device and a casting method. The casting die device has a core pin for forming an inner hole in a casted article. The core pin is a hollow body, and a pressurizing pin is inserted into a hollow inner part of the core pin. Vibrations from a vibrator of a micro vibration machine are imparted to the pressurizing pin via a vibration transmission member. The vibrations further propagate to the core pin from the pressurizing pin, and then propagate to the area surrounding the core pin in a molten metal that has been poured into a cavity.

A fuel manifold (10) configured to form a base support structure (12) to support a plurality of fuel nozzles (14) in a combustor of a gas turbine engine is provided. The fuel manifold includes stage fuel galleries (16, 18), and fuel feed bosses (20, 22) may be configured to connect to respective tubes arranged to deliver gas fuel to the stage fuel galleries (16. 18). Fuel feed bosses (20, 22) are integrally formed with base support structure (12) and this allows the body of fuel manifold (10) to be free of weld joints for affixing the fuel feed boss to the base support structure.

Casting method and cast manifold are provided. The method allows configuring conduits, such as conduits (46, 48) in a fuel feed boss (20) and/or a base rocket (13), which are part of the manifold for removing a ceramic core (44) from the cast without forming extraneous holes in the body of the manifold. Absence of such extraneous holes in turn allows eliminating sealing plugs and welds, which otherwise would be needed for sealing the extraneous holes.

The present invention provides a die cast component, in particular a water outlet fitting, containing a base body (1) produced from metal or a metal alloy by the die casting method and having a cavity in which a number of openings (2, 3, 4) are provided by which the cavity is accessible from the outside, the cavity being at least partially filled with a casting core (5) that is in two-dimensional contact with the inside of the base body (1) and in which at least one channel (6) is provided for the conveyance of fluid, the casting core (5) being made of a material the melting point of which is lower than the melting point of the material from which the base body (1) is produced, and that the outside of the casting core (5) rests with at least substantially all of its surface against the inside of the base body (1). Furthermore, the invention also provides a method for producing this type of die casting component.

The present invention provides a die cast component, in particular a water outlet fitting, containing a base body (1) produced from metal or a metal alloy by the die casting method and having a cavity in which a number of openings (2, 3, 4) are provided by which the cavity is accessible from the outside, the cavity being at least partially filled with a casting core (5) that is in two-dimensional contact with the inside of the base body (1) and in which at least one channel (6) is provided for the conveyance of fluid, the casting core (5) being made of a material the melting point of which is lower than the melting point of the material from which the base body (1) is produced, and that the outside of the casting core (5) rests with at least substantially all of its surface against the inside of the base body (1). Furthermore, the invention also provides a method for producing this type of die casting component.