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公开(公告)号：US20170122564A1
公开(公告)日：2017-05-04
申请号：US14926333
申请日：2015-10-29
Applicant: General Electric Company
Inventor： John Michael Cadman , Ronald D. Redden , Brian Matthias Schaldach , Randy Joseph Tobe
Abstract: A fuel nozzle configured to channel fluid towards a combustion chamber defined within a gas turbine engine is provided. The fuel nozzle includes a first hollow tube and a second hollow tube concentrically aligned with the first hollow tube and defining a gap therebetween. The first hollow tube has a central passageway configured to channel fuel therethrough. The second hollow tube is typically in contact with compressor discharge gases and is therefore at a higher temperature than the first hollow tube. Thus, the fuel nozzle includes at least one detached or free spacer retained within the gap so as to minimize heat transfer between the first and second hollow tubes. Accordingly, the detached spacer(s) is un-joined or free within the gap where thermal energy transfer is disadvantageous.
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公开(公告)号：US20170122212A1
公开(公告)日：2017-05-04
申请号：US14932187
申请日：2015-11-04
Applicant: General Electric Company
CPC classification number: F02C7/24 , F02C7/222 , F05D2240/35 , F05D2260/231 , F23R3/28 , F23R2900/00004 , F23R2900/00005
Abstract: A fuel nozzle configured to channel fluid towards a combustion chamber is provided. The fuel nozzle includes a stem having a central passageway and at least one fuel tube disposed within the passageway. The fuel tube includes an outlet end portion having inner and outer walls separated by a cavity defined by a fixed aft face. The inner wall defines a central bore for delivering fuel to the combustion chamber. Further, the fuel nozzle includes an outer heat shield tube concentrically aligned with the outlet end portion of the fuel tube. The heat shield tube includes a circumferential outer wall having an aft face that stops upstream of the fixed aft face of the fuel tube. Thus, during operation, the heat shield tube is configured to thermally expand by sliding against the outer wall of the fuel tube.
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Patent Agency Ranking
公开(公告)号：US10240537B2
公开(公告)日：2019-03-26
申请号：US15232426
申请日：2016-08-09
Applicant: GENERAL ELECTRIC COMPANY
Inventor： John Michael Cadman , David Richard Barnhart
Abstract: A valve assembly includes a body including an inlet port, an outlet port, and a flow passage extending therebetween. The flow passage includes a plurality of valve seats in a stepped arrangement between the inlet port and the outlet port. The valve assembly further includes a valve stem positioned within the flow passage. The valve stem includes at least one shaft and a poppet disk positioned at one end of the at least one shaft, and at least one reed petal coupled to the at least one shaft. The poppet disk is engageable with a first valve seat of the plurality of valve seats, and the at least one reed petal is engageable with a second valve seat of the plurality of valve seats.
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公开(公告)号：US10196983B2
公开(公告)日：2019-02-05
申请号：US14932187
申请日：2015-11-04
Applicant: General Electric Company
Abstract: A fuel nozzle configured to channel fluid towards a combustion chamber is provided. The fuel nozzle includes a stem having a central passageway and at least one fuel tube disposed within the passageway. The fuel tube includes an outlet end portion having inner and outer walls separated by a cavity defined by a fixed aft face. The inner wall defines a central bore for delivering fuel to the combustion chamber. Further, the fuel nozzle includes an outer heat shield tube concentrically aligned with the outlet end portion of the fuel tube. The heat shield tube includes a circumferential outer wall having an aft face that stops upstream of the fixed aft face of the fuel tube. Thus, during operation, the heat shield tube is configured to thermally expand by sliding against the outer wall of the fuel tube.
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公开(公告)号：US11041445B2
公开(公告)日：2021-06-22
申请号：US16273300
申请日：2019-02-12
Applicant: GENERAL ELECTRIC COMPANY
Inventor： John Michael Cadman , David Richard Barnhart
Abstract: A valve assembly includes a body including an inlet port, an outlet port, and a flow passage extending therebetween. The flow passage includes a plurality of valve seats in a stepped arrangement between the inlet port and the outlet port. The valve assembly further includes a valve stem positioned within the flow passage. The valve stem includes at least one shaft and a poppet disk positioned at one end of the at least one shaft, and at least one reed petal coupled to the at least one shaft. The poppet disk is engageable with a first valve seat of the plurality of valve seats, and the at least one reed petal is engageable with a second valve seat of the plurality of valve seats.
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公开(公告)号：US20200025111A1
公开(公告)日：2020-01-23
申请号：US16273300
申请日：2019-02-12
Applicant: GENERAL ELECTRIC COMPANY
Inventor： John Michael Cadman , David Richard Barnhart
Abstract: A valve assembly includes a body including an inlet port, an outlet port, and a flow passage extending therebetween. The flow passage includes a plurality of valve seats in a stepped arrangement between the inlet port and the outlet port. The valve assembly further includes a valve stem positioned within the flow passage. The valve stem includes at least one shaft and a poppet disk positioned at one end of the at least one shaft, and at least one reed petal coupled to the at least one shaft. The poppet disk is engageable with a first valve seat of the plurality of valve seats, and the at least one reed petal is engageable with a second valve seat of the plurality of valve seats.
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公开(公告)号：US20180045121A1
公开(公告)日：2018-02-15
申请号：US15232426
申请日：2016-08-09
Applicant: GENERAL ELECTRIC COMPANY
Inventor： John Michael Cadman , David Richard Barnhart
CPC classification number: F02C9/263 , F02C7/232 , F16K1/443 , F16K15/028 , F16K15/148 , Y10T137/7891 , Y10T137/87394
Abstract: A valve assembly includes a body including an inlet port, an outlet port, and a flow passage extending therebetween. The flow passage includes a plurality of valve seats in a stepped arrangement between the inlet port and the outlet port. The valve assembly further includes a valve stem positioned within the flow passage. The valve stem includes at least one shaft and a poppet disk positioned at one end of the at least one shaft, and at least one reed petal coupled to the at least one shaft. The poppet disk is engageable with a first valve seat of the plurality of valve seats, and the at least one reed petal is engageable with a second valve seat of the plurality of valve seats.
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