-
公开(公告)号：US10760438B2
公开(公告)日：2020-09-01
申请号：US14771913
申请日：2014-03-20
发明人： Kazuya Nishimura , Eisaku Ito , Koichiro Iida , Kentaro Akimoto
摘要： An axial flow rotating machine has: a rotor with a plurality of rotor blades; a stator with a plurality of stator blades; an axial flow rotating portion defined by the rotor and the stator; and a diffuser connected to the axial flow rotating portion on a downstream side of the axial flow rotating portion. A final blade portion inner-circumferential inner wall, which is a portion of an inner-circumferential inner wall of the axial flow rotating portion, is defined such that a diameter thereof at a trailing edge position of a final blade is smaller than the diameter at a leading edge position of the final blade. In addition, a diameter of all or a portion of a diffuser inner-circumferential inner wall decreases in a direction of the downstream side in an axial direction.
-
公开(公告)号：US10731512B2
公开(公告)日：2020-08-04
申请号：US15691420
申请日：2017-08-30
摘要： A system includes a gas turbine engine configured to combust an oxidant and a fuel to generate an exhaust gas, a catalyst bed configured to treat a portion of the exhaust gas from the gas turbine engine to generate a treated exhaust gas, a differential temperature monitor configured to monitor a differential temperature between a first temperature of the portion of exhaust gas upstream of the catalyst bed and a second temperature of the treated exhaust gas downstream of the catalyst bed, and an oxidant-to-fuel ratio system configured to adjust a parameter to maintain an efficacy of the catalyst bed based at least in part on the differential temperature in order to maintain a target equivalence ratio.
-
公开(公告)号：US20200232344A1
公开(公告)日：2020-07-23
申请号：US16743077
申请日：2020-01-15
摘要： An internal structure of a primary exhaust duct of a turbomachine, the internal structure comprising a primary wall comprising a surface of revolution about a longitudinal axis, allowing the air to pass through orifices and forming an internal surface of the primary exhaust duct, an interior skin comprising a surface of revolution about the longitudinal axis, arranged inside the primary wall, an upstream flange and a downstream flange which attach the interior skin to the interior of the primary wall, at least one separator which is attached to the interior skin and which extends from the interior skin towards the primary wall, the, or each, separator extends in a plane generally parallel to the longitudinal axis, between the two flanges, and the, or each, separator is not attached to the primary wall.
-
公开(公告)号：US10704424B2
公开(公告)日：2020-07-07
申请号：US15029525
申请日：2014-09-04
摘要： A component for a gas turbine engine includes a substrate with a substrate aperture and a coating on the substrate that extends a length of the substrate aperture. A liner assembly for a gas turbine engine includes a hot sheet with a multiple of apertures and a coating on the hot sheet that extends a length of each of the multiple of apertures. A method of forming an aperture to provide film cooling in a component of a gas turbine engine, includes forming a multiple of substrate apertures in a substrate. Each of the multiple of substrate apertures defines a substrate inner periphery. A coating is applied on the substrate after forming the multiple of substrate apertures to define a coating inner periphery at least partially within each of the multiple of substrate apertures. The coating inner periphery is smaller than the substrate inner periphery.
-
公开(公告)号：US10704423B2
公开(公告)日：2020-07-07
申请号：US15744182
申请日：2015-08-12
IPC分类号： F01D25/30
摘要： A diffuser for a turbine engine includes a first wall that extends circumferentially about a centerline axis of the turbine engine. The diffuser also includes a second wall that extends circumferentially about the centerline axis. At least a portion of the second wall is positioned radially outwardly from at least a portion of the first wall. A flow path is defined by the first wall and the second wall. The flow path extends from an inlet configured to receive an axial flow of a fluid, to a circumferentially extending outlet configured to emit the fluid in a substantially radial direction. The outlet extends asymmetrically about the centerline axis.
-
公开(公告)号：US20200158139A1
公开(公告)日：2020-05-21
申请号：US16773035
申请日：2020-01-27
发明人： Mark McNair , William Schuster , Donald G. Godfrey
IPC分类号： F04D29/66 , F24F13/24 , F16L55/033 , F01D25/30 , B32B3/12
摘要： A method for manufacturing a sound attenuation apparatus includes generating a three-dimensional digital model of the sound attenuation apparatus and manufacturing the sound attenuation apparatus based on the model using an additive manufacturing technique. The model includes a body with an interior extending between a bottom surface and a top surface; and a stacked cavity structure having a structure inlet; a passage extending from the structure inlet into the interior to a base surface within the interior of the body; a support spine formed within the interior; and a plurality of arms extending from the support spine and at least partially forming a plurality of overlapping cavities with cavity inlets fluidly coupled to the passage. Each of the plurality of arms include a proximal first arm segment extending from the support spine and a first distal arm segment oriented at an angle relative to the proximal first arm segment.
-
公开(公告)号：US10655516B2
公开(公告)日：2020-05-19
申请号：US15437703
申请日：2017-02-21
摘要： Embodiments of emission reduction system including various embodiments of an emission filters for a power plant including a gas turbine are disclosed. The system includes: an emission filter; and a retraction system operably coupled to an exhaust passage of the gas turbine. The exhaust passage defines an exhaust path of exhaust from the gas turbine. The retraction system selectively moves the emission filter between a first location within the exhaust path and a second location out of the exhaust path. In a combined cycle power plant, the first location is upstream of a heat recovery steam generator (HRSG). The systems and filters described allow for temporary positioning of emission filter(s) just downstream of a gas turbine exhaust outlet, or upstream of an HRSG, where provided, for emission reduction at low loads or startup conditions, and removal of the emission filter(s) once operations move to higher loads.
-
公开(公告)号：US10563543B2
公开(公告)日：2020-02-18
申请号：US15168400
申请日：2016-05-31
摘要： The present disclosure provides an exhaust diffuser for a gas turbine engine. The exhaust diffuser may include a hub, a casing, and a strut extending between the hub and the casing. The hub may include an angled configuration about the strut and a substantially flat configuration downstream of the angled configuration.
-
公开(公告)号：US10563527B2
公开(公告)日：2020-02-18
申请号：US16358141
申请日：2019-03-19
摘要： Systems and methods provide a flow distribution device that includes a duct for a heat recovery steam generators having a duct an expansion portion extending from an inlet portion. The expansion portion has a larger cross-sectional area than the inlet portion. The flow distribution device includes a guide vane having a curved surface. The guide vane is positioned in the duct to extend from at least a part of the inlet portion into the expansion portion.
-
公开(公告)号：US10550729B2
公开(公告)日：2020-02-04
申请号：US15438996
申请日：2017-02-22
发明人： Przemyslaw Sebastian Drezek , Marcin Rafal Abramowicz , Fernando Lopez Parra , Balakrishnan Ponnuraj
摘要： A gas turbine exhaust diffuser is configured to be at least partially disposed within an exhaust collector. The diffuser also includes an inner wall configured to extend to a back wall of the exhaust collector, an outer wall circumferentially disposed about the inner wall along a portion of the collector, and an inlet between the upstream end of the inner and outer walls. The inlet is configured to receive an exhaust flow from a gas turbine engine. An outlet for the exhaust is located between the inner wall and a downstream end of the outer wall. The outer wall is asymmetrically shaped so that an opening between the outlet and the back wall of the exhaust collector is larger on a first lateral side of the diffuser adjacent an exhaust exit of the collector than an opposite lateral side of the diffuser.
-
-
-
-
-
-
-
-
-
搜索结果
1152 条记录 (耗时 0.026 秒)
