Abstract:
A device for guiding an element in an orifice in a wall of a turbomachine combustion chamber comprises a coaxial ring and bushing mounted one inside the other, the bushing comprising two coaxial annular parts that are fastened to each other by welding and that define a groove for guiding a rim of the ring, welding zones between the parts of the bushing being situated away from the path of the rim of the ring when moved along a privileged transverse direction of ring movement relative to the bushing when the combustion chamber is in operation.
Abstract:
A method is disclosed for forming a fuel feed passage in the feed arm of a fuel injector. The method includes the steps of providing a fuel feed passage in the feed arm of a fuel injector, whereby the fuel feed passage has an initial cross-sectional flow area that corresponds with an initial fuel flow velocity, an initial convection heat transfer coefficient and initial localized wetted wall temperatures for the fuel feed passage, for a given fuel flow rate and fuel temperature. The method further includes decreasing the initial cross-sectional flow area of the fuel feed passage so as to increase the fuel flow velocity and the convection heat transfer coefficient for the fuel feed passage, while lowering the localized wetted wall temperatures for the fuel feed passage, without varying the given fuel flow rate and fuel temperature.
Abstract:
The present invention includes a fuel distributor for a fuel nozzle in a gas turbine engine comprising an inner tubular body and an outer tubular body respectively having an outer body inner surface and an inner body outer surface adapted to be in sealing contact one with the other, at least two helical fuel channels defined in at least one of the inner and outer surfaces and being in fluid communication with a fuel inlet, and a channel exit port for each helical fuel channel. The present invention also includes a method of distributing fuel in a fuel nozzle comprising the steps of providing at least two helical channels in the fuel nozzle, each having a channel exit port, providing a fuel inlet cavity in fluid communication with the helical channels, and flowing fuel in the fuel inlet cavity, the helical channels and the channel exit ports.
Abstract:
Aspects of the invention relate to a fixture and a method to assist in the alignment of the inlet end of a transition duct and a combustor component in a turbine engine. The fixture includes a plurality of pressure transducers spaced on a mandrel so as to correspond to the target alignment location of the transition. The plurality of pressure transducers produce signals, which can be converted by a signal processor into an actual alignment location signal. A display can be provided for presenting graphical images of the target alignment location and the actual alignment location responsive to the actual alignment location signal received from the signal processor. Thus, a user can view the movement of the graphical image of the actual alignment location relative to the graphical image of the target alignment location such that the user can adjust the transition's position until the graphical images are substantially aligned.
Abstract:
A method facilitates manufacturing a combustor for a gas turbine engine. The combustor includes an inner and an outer liner, a dome, and flanges. The method comprises assembling the inner and outer liner such that each includes a series of liner panels, positioning a spatter shield against a downstream side of the inner and outer liners, wherein the spatter shield comprises molybdenum, positioning a mounting flange against the downstream side of the inner and outer liners, such that the spatter shield is positioned at least partially between the mounting flange and the inner and outer liners, and coupling the mounting flange to the inner and outer liners.
Abstract:
A method facilitates manufacturing a combustor for a gas turbine engine. The combustor includes an inner and an outer liner, a dome, and flanges. The method comprises assembling the inner and outer liner such that each includes a series of liner panels, positioning a spatter shield against a downstream side of the inner and outer liners, wherein the spatter shield comprises molybdenum, positioning a mounting flange against the downstream side of the inner and outer liners, such that the spatter shield is positioned at least partially between the mounting flange and the inner and outer liners, and coupling the mounting flange to the inner and outer liners.
Abstract:
A method facilitates manufacturing a combustor for a gas turbine engine. The combustor includes an inner and an outer liner, a dome, and flanges. The method comprises assembling the inner and outer liner such that each includes a series of liner panels, positioning a spatter shield against a downstream side of the inner and outer liners, wherein the spatter shield comprises molybdenum, positioning a mounting flange against the downstream side of the inner and outer liners, such that the spatter shield is positioned at least partially between the mounting flange and the inner and outer liners, and coupling the mounting flange to the inner and outer liners.
Abstract:
A method of assembling a gas supply device within an appliance cabinet is disclosed. The method comprises bending a tube assembly prior to installation in the appliance, attaching a fitting to the first end of the tube, attaching the fitting of the first end of the tube to a burner assembly, attaching a second fitting having a non-circular portion to the second end of the tube, attaching a mounting bracket with a non-circular profile to the non-circular portion of the second fitting in a fixed condition to prevent rotation of the body with respect to the bracket, and mounting the tube assembly in the appliance cabinet.
Abstract:
A gas supply assembly having a tube with a first end and a second end. The first end is provided with a burner fitting and the second end is provided with an inlet fitting, the inlet fitting having an inlet fitting shape. The assembly also has a mounting bracket defining a bracket opening for receiving the inlet fitting. The bracket opening has a bracket opening shape complementary to that of the inlet fitting shape so that the mounting bracket and the inlet fitting cooperate to substantially prohibit rotation of the tube. The present invention also provides a method of assembling an appliance incorporating the gas supply assembly, where the gas supply assembly is attached to a burner assembly before these components are introduced into the appliance's cabinet.
Abstract:
A pair of spaced tubular half-shells are stamped in each of two separate sheets of metal which are then joined at their margins to form two mixer tubes each having an inlet end with a venturi for connection to a fuel gas supply and an outlet end adapted for connection to a burner. The space between the mixer tubes is stamped to form a pair of grooves which lock and seal the sheets together to prevent the fuel/air mixture from leaking from one mixer tube to the other.