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公开(公告)号：US20180200806A1
公开(公告)日：2018-07-19
申请号：US15406947
申请日：2017-01-16
CPC分类号： B23B47/28 , B23B2215/76 , B23P2700/13 , B23Q9/0042 , F01D5/025 , F01D5/026 , F01D21/04 , F01D21/045 , F01D21/06 , F01D21/10 , F01D21/14 , F01D25/285 , F02C3/04 , F02C3/14 , F02C6/12 , F02C7/22 , F04D29/522 , F04D29/644 , F05D2220/32 , F05D2220/40 , F05D2230/10 , F05D2230/14 , F05D2230/237 , F05D2230/238 , F05D2240/35 , F05D2260/311 , F23R2900/00018 , F23R2900/00019
摘要： A portable jig and fixture having at least one base plate, a column assembly removably coupled to the at least one base plate, a slide assembly removably coupled to the column assembly, a power feed head removably coupled to the slide assembly, and a spindle unit removably coupled with the slide assembly having a motor removably engaged it. At least one cutter assembly is removably engaged with the spindle unit and at least one drill jig is also removably engaged with the spindle unit. Also, a turbomachine having complementary structure on the compressor discharge casing can engage with the at least one base plate alignment mounting structure on the portable jig and fixture.
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公开(公告)号：US20180010480A1
公开(公告)日：2018-01-11
申请号：US15201716
申请日：2016-07-05
CPC分类号： F01D21/06 , F01D5/12 , F01D11/08 , F01D19/02 , F01D21/003 , F01D25/34 , F02C7/26 , F02C7/262 , F05D2220/32 , F05D2260/85 , F05D2270/304 , F05D2270/804 , G01B21/16
摘要： According to an aspect, a bowed rotor sensor system for a gas turbine engine is provided. The bowed rotor sensor system includes a bowed rotor sensor operable to transmit a sensing field in an observation region and receive a signal indicative of a gap between an air seal and a blade tip within the gas turbine engine. The bowed rotor sensor system also includes a controller operable to monitor a plurality of gap data from the bowed rotor sensor indicative of the gap between the air seal and the blade tip of a plurality of blades passing through the observation region and determine a bowed rotor status of the gas turbine engine based on the gap data.
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公开(公告)号：US09810089B2
公开(公告)日：2017-11-07
申请号：US14653465
申请日：2013-12-27
发明人： Yutaka Kubota , Toyotaka Hirao , Takao Sakurai , Naoki Kobayashi
摘要： This power generation system (20A) includes a plurality of power generation units (50A, 50B, 50C, . . . ) which are provided in parallel, wherein each of the power generation units (50A, 50B, 50C, . . . ) includes an expander (26) configured to be rotated by a working medium, a power generator (28) configured to generate power through rotation of the expander (26), a rectifier (29), a medium circulation system (22) configured to pump the working medium into the expander (26), a relay (70) configured to interrupt power between the power generator (28) and an external power system (30), an operating unit (40A, 40B) configured to be operated when maintenance starts, and a relay driving unit (71) configured to interrupt power between the power generator (28) and the external power system (30) by the relay (70) when the operating unit (40A, 40B) has been operated.
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公开(公告)号：US20170205312A1
公开(公告)日：2017-07-20
申请号：US14997913
申请日：2016-01-18
CPC分类号： G01M13/028 , F01D21/04 , F01D21/06 , F02C3/04 , F05D2270/091 , F05D2270/80 , G01L5/00 , G01M15/14
摘要： There is described a shaft shear event detection method. The method comprises storing in memory a shaft oscillation signature determined as a function of known characteristics of the shaft and associated with a shaft shear event; monitoring a rotational speed of the shaft; detecting from the rotational speed an oscillation wave superimposed on the rotational speed, the oscillation wave having a wave modulation frequency and a wave modulation amplitude; comparing the oscillation signature to the oscillation wave; and detecting the shaft shear event when the oscillation wave corresponds to the oscillation signature.
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公开(公告)号：US20170159464A1
公开(公告)日：2017-06-08
申请号：US15366260
申请日：2016-12-01
申请人： MTU Aero Engines AG
发明人： Markus Schlemmer , Martin Pernleitner , Manfred Dopfer , Marcus Woehler , Oliver Thiele , Bernd Kislinger , Norman Cleesattel , Christoph Lauer , Manfred Schill , Manuel Hein
CPC分类号： F01D9/041 , F01D5/12 , F01D11/001 , F01D21/04 , F01D21/045 , F01D21/06 , F05D2220/32 , F05D2240/12 , F05D2240/24 , F05D2250/232 , F05D2260/90 , F05D2260/902
摘要： A guide vane segment 10 for a turbomachine includes a radially inner shroud plate 13 having a shroud plate surface 14 that is adapted to be configured in the turbomachine to face a rotor blade 20 adjacent to the guide vane segment, and thereby essentially extend along an outer conical surface K1 whose cone axis coincides with the axis of rotation A of a rotor shaft 30. In a radially inner region, a rotor blade 20 for a turbomachine has a base plate 23 having a base plate surface 24 that is adapted to be configured in the turbomachine to face a shroud of a guide vane row 10 adjacent to the rotor blade and thereby essentially extend along an outer conical surface K2 whose cone axis coincides with the axis of rotation A of a rotor shaft 30.
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6.发明授权公开(公告)号：US09472026B2
公开(公告)日：2016-10-18
申请号：US14183820
申请日：2014-02-19
申请人： SNECMA
CPC分类号： G07C5/00 , F01D19/02 , F01D21/06 , F01D25/04 , F05D2260/80 , F05D2260/81 , F05D2270/04 , F05D2270/709
摘要： A method of characterizing a turbine engine, the method comprising: steps of using measurements from an accelerometer monitoring a particular turbine engine while it is starting to detect the energy released by any contact during said starting between the rotor and the stator of the turbine engine, and of associating any such detection of contact with thermodynamic data measured on the particular turbine engine; and then a recognition training step, based on the associations, to enable a thermal context of the turbine engine to be used to recognize the presence of a rotor thermal unbalance to be taken into account in order to avoid contacts between the rotor and the stator on starting.
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公开(公告)号：US08943876B2
公开(公告)日：2015-02-03
申请号：US13984571
申请日：2012-02-24
CPC分类号： F02C7/00 , F01D21/003 , F01D21/045 , F01D21/06 , F05D2270/021 , F05D2270/09 , F05D2270/091 , F05D2270/304 , F05D2270/335 , G01H1/006 , G01M13/02 , G01M15/046 , G01M15/14
摘要： A shaft break detection system and a method of detecting shaft break for a gas turbine engine. A first indication is calculated from measured rotational speed of a shaft. A second indication is calculated from the rotational speed. A shaft break signal is generated if both indications are true.
摘要翻译： 一种轴断裂检测系统和用于检测燃气涡轮发动机的轴断裂的方法。 从测量的轴的转速计算第一指示。 从转速计算第二指示。 如果两个指示都为真，则产生轴断裂信号。
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公开(公告)号：US20140245739A1
公开(公告)日：2014-09-04
申请号：US14278170
申请日：2014-05-15
发明人： Kevin Allan DOOLEY
IPC分类号： F02C7/22
CPC分类号： F02C7/22 , F01D21/06 , F02C7/228 , F02C7/232 , F02C9/34 , F02C9/36 , F05D2260/602 , F05D2270/3015
摘要： A method for purging fuel from a fuel system of a gas turbine engine on shutdown of the engine comprises, in one aspect, terminating a fuel supply to the fuel system and using the residual compressed air to create a reversed pressure differential in the fuel system relative to a forward pressure differential of the fuel system used to maintain fuel supply for engine operation, and under the reversed pressure differential substantially purging the fuel remaining in the system therefrom to a fuel source.
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公开(公告)号：US20130319092A1
公开(公告)日：2013-12-05
申请号：US13984571
申请日：2012-02-24
IPC分类号： G01M15/14
CPC分类号： F02C7/00 , F01D21/003 , F01D21/045 , F01D21/06 , F05D2270/021 , F05D2270/09 , F05D2270/091 , F05D2270/304 , F05D2270/335 , G01H1/006 , G01M13/02 , G01M15/046 , G01M15/14
摘要： A shaft break detection system and a method of detecting shaft break for a gas turbine engine. A first indication is calculated from measured rotational speed of a shaft. A second indication is calculated from the rotational speed. A shaft break signal is generated if both indications are true.
摘要翻译： 一种轴断裂检测系统和用于检测燃气涡轮发动机的轴断裂的方法。 从测量的轴的转速计算第一指示。 从转速计算第二指示。 如果两个指示都为真，则产生轴断裂信号。
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公开(公告)号：US20130312423A1
公开(公告)日：2013-11-28
申请号：US13984639
申请日：2012-02-24
IPC分类号： F02C7/00
CPC分类号： F02C7/00 , F01D21/003 , F01D21/045 , F01D21/06 , F05D2270/021 , F05D2270/09 , F05D2270/091 , F05D2270/304 , F05D2270/335 , G01H1/006 , G01M13/02 , G01M15/046 , G01M15/14
摘要： A method of detecting shaft break in a gas turbine engine having a shaft system. The shaft system including a shaft that couples a compressor and a turbine. First construct a frequency model of the shaft system. Then determine a notch frequency and a first torsional frequency for the shaft system from the model. Then in real time measure a rotational speed of the shaft; detect the presence or absence of a feature at at least one of the notch frequency and the first torsional frequency in the measured speed; and generate a shaft break signal in response to the absence of at least one of the features.
摘要翻译： 一种在具有轴系的燃气轮机中检测轴断裂的方法。 该轴系统包括连接压缩机和涡轮机的轴。 首先构造轴系的频率模型。 然后从模型中确定轴系的陷波频率和第一扭转频率。 然后实时测量轴的转速; 在所测量的速度中，以所述陷波频率和所述第一扭转频率中的至少一个来检测特征的存在或不存在; 并且响应于不存在所述特征中的至少一个而产生轴断裂信号。
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