摘要:
A gas turbine engine (10) has a combustor basket (15) that has resonators (25). Resonator bases (26) are attached directly to the outer surface (22) of a combustor liner (20). A thermal barrier coating (23) is applied to the internal surface (21) of the combustor liner (20) and holes (29) are drilled through the combustor liner (20) at the location of the resonator base (26). After the application of the thermal barrier coating (23) and the drilling of holes (29) a resonator cap (24) is attached to the resonator base (26). Variations of the method are used in servicing existing gas turbine engines.
摘要:
An improved combustion system (200) with at least one improved combustion chamber (202) is disclosed. The at least one improved combustion chamber (202) comprises one or more improved liners (204) having one or more jet holes (206). The at least one improved combustion chamber (202) also comprises one or more resonators (104) wherein at least one resonator neck (110) of the one or more resonators (104) is connected with the one or more liners (204).
摘要:
Die Erfindung betrifft Brennkammer (10) für eine Gasturbine (1) mit einer den Heißgaspfad der Brennkammer (10) umgebenden Brennkammerwand (12, 24) und mindestens einer Brenneranordnung (11) zum Entladen eines brennbaren Fluids in die Brennkammer (10), mindestens einem radial außen an der Brennkammerwand (12, 24) angeordneten Resonator (26, 30) zum Dämpfen von im Betrieb auftretenden Verbrennungsschwingung, wobei der Resonator (26, 30) in seinem Inneren mindestens ein Resonator-Volumen (31) umfasst, welches auf einer Seite von der Brennkammerwand (12, 24) begrenzt ist, wobei das Resonator-Volumen (31) mittels Resonator-Bohrungen (27) in der Brennkammerwand (12, 24) fluidisch mit dem Inneren der Brennkammer (10) verbunden ist. Die Brennkammer (10) weist für eine Verlängerung der Brennkammerwand-Lebenszeit erfindungsgemäß radial außen im Bereich mindestens einer Resonator-Bohrung (27) eine in das Resonator-Volumen (31) hineinragende Erhebung (33, 33a) auf, so dass die Brennkammerwand im Bereich der Resonator-Bohrung (27) verdickt ist, wobei die Resonator-Bohrung (27) durch die Brennkammerwand (12, 24) und durch die Erhebung (33, 33a) hindurch verläuft.
摘要:
A combustor for a gas turbine is described. The combustor comprises a combustor liner (3), a metering plate (7) attached to an end of the combustor liner and a combustor casing (5) at least partially surrounding the combustor liner (3). An end cover (18) is further connected to the combustor casing (5). The combustor liner (3) is connected to the combustor casing (5) by means of a retainer (21) arranged between the metering plate (7) and the end cover (18), and attached to the metering plate and to the end cover.
摘要:
The invention relates to a rotating machine component (2), particularly a gas turbine combustion component, comprising at least one part (25) built from a porous material (15) com¬ prising a plurality of pores (16), wherein at least a subset of the plurality of pores (16) is at least partly filled with a gas with a composition different from air and/or with a powder (35'), wherein the porous material (15) is a laser sintered or laser melted material in which void local regions form the plurality of pores (16). The component may counter- act vibrations. Furthermore the invention relates to rotating machine or gas turbine engine having such a component and a manufacturing method of such a component.
摘要:
The present invention discloses a novel apparatus and way for controlling combustion dynamics in a premix combustion system. The apparatus comprises a hemispherical dome assembly with a plurality of dome dampers having a predetermined damper volume and air supply with the damper in fluid communication with the combustion chamber. The dome dampers are pressurized with a volume of air to dampen pressure waves received from the combustion chamber. One or more combustor frequencies can be targeted through use of the present invention.
摘要:
An acoustically dampened gas turbine engine having a gas turbine engine combustor (12) with an acoustic damping resonator system (10) is disclosed. The acoustic damping resonator system (10) may be formed from one or more resonators (16) formed from a resonator housing (18) positioned within the gas turbine engine combustor (12) at an outer housing (20) forming a combustor basket (22) and extending circumferentially within the combustor (12). In at least one embodiment, the resonator housing (18) may include one or more resonator chambers (24) that provide enhanced cooling with reduced risk of cracking and other damage. The resonator housing (18) may include resonator exhaust orifices (26) that are positioned closer to an area of maximum temperature within the combustor (12), thereby enabling the resonator (16) to reduce the temperature gradient within the combustor (12). The resonator housing (18) may be sized and configured to reduce stress found in conventional systems by increasing distances between resonator exhaust orifices (26) and between resonator inlet impingement orifices (30), among others.
摘要:
An acoustically dampened gas turbine engine (10) having a gas turbine engine combustor (12) with an acoustic damping resonator system (14) is disclosed. The acoustic damping resonator system (14) may be formed from one or more resonators (16) positioned within the gas turbine engine combustor (12) at an outer housing (18) forming a combustor basket (22) and extending circumferentially within the combustor (12). The resonator (16) may be positioned in a head region (20) of the combustor basket (22). In one embodiment, the resonator (16) may be positioned in close proximity to an intersection (24) between the outer housing (18) and an upstream wall (26) defining at least a portion of the combustor (12). The acoustic damping resonator system (14) may mitigate longitudinal mode dynamics thereby increasing an engine operating envelope and decreasing emissions
摘要:
The present invention relates to a combustion system of a flow engine comprising at least one combustion chamber, a shared manifold (18) to feed a flow medium via at least two injectors to the at least one combustion chamber and at least one resonator (20) with at least one resonator cavity (22), wherein the at least one resonator (20) is arranged functionally in/at the manifold (18). To obtain good combustion performance with a homogenous fuel flow rate and high combustion stability, it is provided that the resonator (20) comprises at least one perforated section (24) with at least two orifices (26), wherein the at least two orifices (26) provide access to the at least one resonator cavity (22) of the at least one resonator (20).