Abstract:
A nozzle arrangement for a gas turbine engine comprising a first housing member (60) and a second housing member (70). The nozzle arrangement may further include a first nozzle (20) and a second nozzle (30). Each of the first nozzle and second nozzle may extend between the first housing member and the second housing member so as to form a doublet (10). A plurality of cooling apertures (100, 110, 130, 150) may be arranged on at least one of the first nozzle, the second nozzle, the first housing member, or the second housing member so as to provide a different degree of first order cooling across the doublet.
Abstract:
A method of using a gas turbine engine (182) is provided. The method may include supporting a first portion (184) of the gas turbine engine one or more guide tracks (208) extending in a first direction (276), the first direction being at an angle to a longitudinal axis (192) of the gas turbine engine. The method may also include moving the first portion of the gas turbine engine in the first direction on the guide tracks independently of a second portion (188) of the gas turbine engine.
Abstract:
A method (100) of fabricating a shrouded impeller (10) is disclosed. The method includes providing an open faced impeller (16), the open faced impeller including a plurality of blades (14) extending at least partially radially from a hub (12). The method also includes performing (120) a first powder metallurgical process to form a first material (52A) over at least part of the open faced impeller. The method further includes forming (160) a shroud (20) circumferentially disposed about the hub and connected to one of more of the blades. Forming the shroud includes performing a second powder metallurgical process to metallurgically bond the shroud to at least some of the blades.
Abstract:
A gas turbine engine assembly (8) includes a gas turbine engine (12) mounted on a three-point mounting frame (10). The three-point mounting frame (10) includes an engine support structure (18) having first and second beams (22a, 22b) in a V-configuration, and a secondary support structure (24) that is positioned about the engine support structure (18) and has a rectangular footprint. The frame (10) may include a Y-configuration that includes the V-configuration, and may be implemented in a machine mounting system, such as in a marine vessel (50).
Abstract:
An exhaust treatment system (16) is provided. The system may include a particulate trap (18) configured to remove one or more types of particulate matter from an exhaust flow, the exhaust flow including at least a portion of a totality of exhaust gases produced by an engine (14). The system (16) may further include a burner assembly (26) configured to increase a temperature of gases in the exhaust flow at a location upstream from the particulate trap (18). The burner assembly (26) may include an exhaust inlet (28) oriented in a direction along a first axis and configured to direct the exhaust flow into the burner assembly (26), and an exhaust outlet (30) oriented in a direction along a second axis at an angle relative to the first axis, the exhaust outlet being configured to direct the exhaust flow out of the burner assembly (26) toward the particulate trap (18). The burner assembly (26) may also include a fuel injector (32) having a longitudinal axis (34) in substantial alignment with the second axis. In addition, the burner assembly (26) may include a cylindrical combustion chamber member (48) defining a combustion chamber (46), having a longitudinal axis in substantial alignment with the longitudinal axis (34) of the fuel injector (32), and configured to house a flame that is fueled by the fuel injector (32) within the combustion chamber (46). The burner assembly (26) may further include an exhaust flow distribution member (56) configured to substantially evenly distribute exhaust about the combustion chamber member (48) and in a heat exchange relation to the combustion chamber member (48).
Abstract:
An apparatus (202) and method for starting a system (102). The system (102) provides electrical power to a load (104). The system (102) includes a turbine engine (106), a generator (114) coupled to the turbine engine (106), a rectifier (116) coupled to the generator (114), a storage means (118) coupled to the rectifier (116), a power inverter (120) coupled between the storage means (118) and the load (104), and an inverter controller (122). The apparatus (202) includes a circuit (204) for de-coupling the load (104) from the system (102). The apparatus (202) and method control the generator (114) to drive the turbine engine (106) and start the system (102).
Abstract:
Past enclosures have included a system for circulating air from an external environment through a filtering system which is used to cool heat generating components within the enclosure. The present enclosure (10) includes a plurality of structural members (16) which define a cavity (38) having an internal environment being sealed from the external environment. The cavity (38) is divided into a heat generating portion (82) and a heat absorbing portion (84) having a fan mechanism (70) for circulating air between the heat generating portion (82) and the heat absorbing portion (84). Thus, the heat generating devices (80) within the cavity (38) are cooled as a heat absorbing surface (14) of the plurality of structure members (16) absorb the heat from the internal environment and a heat dissipating surface (12) of the plurality of structural members (16) dissipated the heat to the external environment. Furthermore, with the internal environment being sealed from the external environment the components within the enclosure (10) are protected from the hazards of the external environment, such as sand, salt and dirt.
Abstract:
Past fuel injection nozzles have attempted to provide a structure to reduce tip temperatures. Such nozzles have failed to attain adequate reduction of tip temperatures without increasing the quantity of cooling air required. The present fuel injector (40) structure has resulted in reduced tip temperatures without increasing the quantity of cooling air required. The structure includes a shell (80) having an inner member (118) positioned therein forming a first chamber (120) therebetween, an end piece (96) forming a second chamber (132) between the inner member (118) and the end piece (96). An inner body (140) has a plurality of first angled passages (174) formed therein and communicates between the second chamber (132) and a passage (116). A flow of combustor air through the second chamber (132) contacts an air side (106) of the end piece (96) resulting in a combustor side (104) being cooled. The unique structure of the fuel injector nozzle (40) provides improved tip cooling without increasing the quality of cooling air and improves the efficiency of the gas turbine engine (10).
Abstract:
Past fuel injection nozzles have attempted to provide a structure to reduce exhaust emissions, generally NOx using water injection. Such nozzles have failed to attain adequate reduction of exhaust emissions. The present fuel injector (40) structure has resulted in reduced NOx emissions. The structure includes a combustor having an axis (68) a first air flow passage (73), a second air flow passage (162), a first annular fuel passage (118) and a second annular fuel passage (130). Positioned in the first air flow passage (73) is a directing device (96) through which water is introduced in a swirling manner and mixed with the air in the first air flow passage (73). Fuel is introduced into the first and/or second annular fuel passages (118, 130) and mixed with air in the second air flow passage (162). The mixtures of air and water, and fuel and air are mixed prior to entering the combustion section (26). The unique structure swirls the air and fuel and the air and water prior to their meeting and mixing.
Abstract:
A method and apparatus is provided for crushing a portion of a corrugated plate in a selected area of the corrugations without blocking the grooves (14, 14'). In accordance with the method teeth are inserted into grooves on opposite sides of the corrugated plate and the corrugation ridges associated with such grooves are, axially adjacent such insertion, crushed to a predetermined thickness (CT). The teeth are then withdrawn, the corrugated plate is indexed a desired number of ridges/grooves and the die members are again engaged with the opposite sides of the plate (10). The apparatus for crushing a plate (10) includes a frame for supporting the plate, a feed apparatus for moving the plate at the desired time in the desired direction, and a forming apparatus for crushing plate ridges in a zone (B') and obstructing, in a transition zone (C) between the crushed ridges and the uncrushed ridges, ridge transverse movement into adjacent grooves.