公开(公告)号：US20120151916A1

公开(公告)日：2012-06-21

申请号：US13026866

申请日：2011-02-14

申请人： Shishir Tiwari ,  Douglas C. Hofer ,  Shashi Kiran ,  Jessica Lynn Plummer ,  Shridhar Shrikant Kulkarni

发明人： Shishir Tiwari ,  Douglas C. Hofer ,  Shashi Kiran ,  Jessica Lynn Plummer ,  Shridhar Shrikant Kulkarni

IPC分类号： F01N13/08 ,  F02C6/12

CPC分类号： F01N13/08 ,  F01N13/011 ,  F01N2470/14 ,  F01N2590/08 ,  F02B37/00 ,  Y02T10/144

摘要： Various systems are provided for an apparatus. In one example, the apparatus includes an expansion plenum with a plurality of outlets directing flow in a common first direction, and an inlet receiving flow in a second direction angled with respect to the first common direction. The apparatus further includes at least one mating structure operatively coupled to one of the plurality of outlets, the at least one mating structure configured to provide a determined amount of exhaust gas to an exhaust gas treatment system.

摘要翻译： 为装置提供各种系统。 在一个示例中，该装置包括膨胀增压室，其具有引导在公共第一方向上的流动的多个出口，以及在相对于第一共同方向成角度的第二方向上的入口接收流。 所述设备还包括至少一个配合结构，其可操作地连接到所述多个出口中的一个出口，所述至少一个配合结构被配置为向废气处理系统提供确定量的废气。

公开(公告)号：US20100000216A1

公开(公告)日：2010-01-07

申请号：US12216196

申请日：2008-07-01

申请人： Douglas C. Hofer ,  Gregory L. DiAntonio ,  William Parry

发明人： Douglas C. Hofer ,  Gregory L. DiAntonio ,  William Parry

IPC分类号： F01K13/00

CPC分类号： F01K13/02

摘要： A steam turbine operating system includes at least a high pressure turbine section and a low pressure section; one or more control valves arranged to admit steam from a boiler to the high pressure turbine section; a condenser arranged to receive steam exhausted from the low pressure section and to convert the steam to a liquid; a top heater arranged to receive liquid from the condenser and to heat the liquid via heat exchange with steam from the high pressure section, and to return the heated liquid to the boiler; and an overload bypass valve arranged to supply steam bypassed around the one or more control valves directly to the top heater.

摘要翻译： 蒸汽轮机操作系统至少包括高压涡轮机部分和低压部分; 一个或多个控制阀，布置成允许从锅炉到高压涡轮部分的蒸汽; 冷凝器，其布置成接收从低压段排出的蒸汽并将蒸汽转化成液体; 布置成从冷凝器接收液体并通过与来自高压部分的蒸汽的热交换来加热液体并将加热的液体返回到锅炉的顶部加热器; 以及过载旁路阀，其布置成将围绕所述一个或多个控制阀旁路的蒸汽直接供应到顶部加热器。

公开(公告)号：US20090193784A1

公开(公告)日：2009-08-06

申请号：US12023319

申请日：2008-01-31

申请人： Gunnar L. Siden ,  Sal A. Leone ,  John E. Sholes ,  Victor G. Hatman ,  Douglas C. Hofer ,  Thomas W. Vandeputte ,  Sylvain Pierre

发明人： Gunnar L. Siden ,  Sal A. Leone ,  John E. Sholes ,  Victor G. Hatman ,  Douglas C. Hofer ,  Thomas W. Vandeputte ,  Sylvain Pierre

IPC分类号： F02C6/04

CPC分类号： F01D15/10 ,  F02C3/10 ,  F02C3/107 ,  F02C6/00 ,  F02C6/18

摘要： A power generating turbine system that may include: 1) a turbine that includes two sections, a high-pressure turbine section and a low-pressure turbine section that each reside on a separate shaft; 2) an axial compressor that compresses a flow of air that is then mixed with a fuel and combusted in a combustor such that the resulting flow of hot gas is directed through the turbine; 3) a two-pole generator; 4) a four-pole generator; 5) a first shaft that couples the high-pressure turbine section to the axial compressor and the two-pole generator such that, in operation, the high-pressure turbine section drives the axial compressor and the two-pole generator; and 6) a second shaft that couples the low-pressure turbine section to the four-pole generator such that, in operation, the low-pressure turbine section drives the four-pole generator.

摘要翻译： 一种发电涡轮机系统，其可以包括：1）包括两个部分的涡轮机，每个部分都存在于单独的轴上的高压涡轮部分和低压涡轮部分; 2）轴向压缩机，其压缩然后与燃料混合并在燃烧器中燃烧的空气流，使得所产生的热气流引导通过涡轮机; 3）双极发电机; 4）四极发生器; 5）将高压涡轮部分连接到轴向压缩机和双极发生器的第一轴，使得在操作中，高压涡轮部分驱动轴向压缩机和两极发电机; 以及6）第二轴，其将所述低压涡轮部分连接到所述四极发电机，使得在操作中所述低压涡轮部分驱动所述四极发电机。

公开(公告)号：US20090193783A1

公开(公告)日：2009-08-06

申请号：US12023298

申请日：2008-01-31

申请人： Gunnar L. Siden ,  Sal A. Leone ,  John E. Sholes ,  Victor G. Hatman ,  Douglas C. Hofer ,  Thomas W. Vandeputte ,  Sylvain Pierre

发明人： Gunnar L. Siden ,  Sal A. Leone ,  John E. Sholes ,  Victor G. Hatman ,  Douglas C. Hofer ,  Thomas W. Vandeputte ,  Sylvain Pierre

IPC分类号： F02C6/06

CPC分类号： F02C3/107 ,  F01D15/10 ,  F02C3/10 ,  F02C6/00 ,  F02C6/18

摘要： A power generating turbine system that may include: 1) a turbine that includes two sections, a high-pressure turbine section and a low-pressure turbine section that each reside on a separate shaft; 2) an axial compressor that compresses a flow of air that is then mixed with a fuel and combusted in a combustor such that the resulting flow of hot gas is directed through the turbine, the axial compressor comprising a low-pressure compressor section and a high-pressure compressor section; 3) a four-pole generator; 4) a first shaft that couples the high-pressure turbine section to the high-pressure compressor section such that, in operation, the high-pressure turbine section drives the high-pressure compressor; and 5) a second shaft that couples the low-pressure turbine section to the four-pole generator and the low-pressure compressor such that, in operation, the low-pressure turbine section drives the four-pole generator and the low-pressure compressor.

摘要翻译： 一种发电涡轮机系统，其可以包括：1）包括两个部分的涡轮机，每个部分都存在于单独的轴上的高压涡轮部分和低压涡轮部分; 2）一种轴向压缩机，其压缩与燃料混合并在燃烧器中燃烧的空气流，使得所产生的热气流引导通过涡轮机，轴向压缩机包括低压压缩机部分和高压 压缩机部分; 3）四极发电机; 4）将高压涡轮部分连接到高压压缩机部分的第一轴，使得在操作中，高压涡轮部分驱动高压压缩机; 以及5）第二轴，其将低压涡轮部分连接到四极发电机和低压压缩机，使得在操作中，低压涡轮部分驱动四极发电机和低压压缩机 。

公开(公告)号：US20130055711A1

公开(公告)日：2013-03-07

申请号：US13226543

申请日：2011-09-07

申请人： Douglas C. Hofer ,  Anthony Furman ,  Thomas Lavertu

发明人： Douglas C. Hofer ,  Anthony Furman ,  Thomas Lavertu

IPC分类号： F02B37/013 ,  F02B37/18 ,  F02B37/00

CPC分类号： F02B37/005 ,  F02B37/004 ,  F02B37/013 ,  F02B37/18 ,  F02B41/10 ,  F02D41/0007 ,  F02D41/045 ,  Y02T10/144 ,  Y02T10/163

摘要： Methods and systems are provided for operating a turbocharged engine. An engine system comprises a turbocharger, a bypass path, and a turbo-compound unit. The turbocharger may include a turbine mechanically coupled to a compressor. The turbo-compound unit may include a turbine mechanically coupled to a load, such as a generator. The turbo-compound unit may be coupled in a bypass path around the turbocharger turbine. In this manner, thermodynamic energy flowing through the bypass path may be harvested to increase the engine-operating efficiency. Further, gas flow through the bypass path may be adjusted to potentially improve the transient response of the turbocharger.

摘要翻译： 提供了用于操作涡轮增压发动机的方法和系统。 发动机系统包括涡轮增压器，旁路路径和涡轮复合单元。 涡轮增压器可以包括机械地联接到压缩机的涡轮机。 涡轮复合单元可以包括机械耦合到诸如发电机的负载的涡轮机。 涡轮复合单元可以在涡轮增压器涡轮机周围的旁路路径中联接。 以这种方式，可以收获流过旁路路径的热力学能量，以提高发动机运转效率。 此外，可以调节通过旁通路径的气体流动，以潜在地改善涡轮增压器的瞬态响应。

公开(公告)号：US20130031902A1

公开(公告)日：2013-02-07

申请号：US13197108

申请日：2011-08-03

申请人： Rodrigo Rodriguez Erdmenger ,  Douglas C. Hofer ,  Jassin Fritz ,  Alberto Scotti Del Greco ,  Georgios Bikas ,  Mark Stablein ,  Sebastian Walter Freund ,  Vittorio Michelassi

发明人： Rodrigo Rodriguez Erdmenger ,  Douglas C. Hofer ,  Jassin Fritz ,  Alberto Scotti Del Greco ,  Georgios Bikas ,  Mark Stablein ,  Sebastian Walter Freund ,  Vittorio Michelassi

IPC分类号： F02C6/12

CPC分类号： F02B37/002 ,  F02B37/013 ,  F02M23/00 ,  F02M26/08 ,  F02M35/10255 ,  F02M37/18 ,  Y02T10/144 ,  Y02T10/146

摘要： Various methods and systems are provided for an engine. In one example, the system includes a two-stage turbocharger which has first turbocharger with a first turbine and a first compressor and a second turbocharger with a second turbine and a second compressor, where the first turbine and the second turbine are arranged in parallel and the first compressor and the second compressor are arranged in series. The system may include a duct coupling turbine inlets of the first and second turbine, and a valve coupled between the duct and the inlet of the first turbine to throttle flow to first turbine.

摘要翻译： 为发动机提供各种方法和系统。 在一个示例中，该系统包括具有第一涡轮机的第一涡轮增压器和具有第二涡轮机和第二压缩机的第一压缩机和第二涡轮增压器的两级涡轮增压器，其中第一涡轮机和第二涡轮机并联布置， 第一压缩机和第二压缩机串联布置。 该系统可以包括管道联接第一和第二涡轮机的涡轮机入口，以及联接在第一涡轮机的管道和入口之间的阀，以节流到第一涡轮机的流量。

公开(公告)号：US20090193785A1

公开(公告)日：2009-08-06

申请号：US12023343

申请日：2008-01-31

申请人： Gunnar L. Siden ,  Sal A. Leone ,  John E. Sholes ,  Victor G. Hatman ,  Douglas C. Hofer ,  Thomas W. Vandeputte ,  Sylvain Pierre

发明人： Gunnar L. Siden ,  Sal A. Leone ,  John E. Sholes ,  Victor G. Hatman ,  Douglas C. Hofer ,  Thomas W. Vandeputte ,  Sylvain Pierre

IPC分类号： F02C6/06

CPC分类号： F02C6/00 ,  F01D15/10 ,  F02C3/10 ,  F02C3/107 ,  F02C6/18

摘要： A power generating turbine system that includes: a turbine that includes three sections, a high-pressure turbine section, a mid-pressure turbine section, and a low-pressure turbine section that each reside on a separate shaft; 2) an axial compressor that compresses a flow of air that is then mixed with a fuel and combusted in a combustor such that the resulting flow of hot gas is directed through the turbine, the axial compressor comprising a high-pressure compressor section and a low-pressure compressor section; 3) a two-pole generator; 4) a four-pole generator; 5) a first shaft that couples the high-pressure turbine section to the high-pressure compressor section such that, in operation, the high-pressure turbine section drives the high-pressure compressor section; 6) a second shaft that couples the mid-pressure turbine section to the high-pressure compressor section and the two-pole generator such that, in operation, the mid-pressure turbine section drives the high-pressure compressor section and two-pole generator; and 7) a third shaft that couples the low-pressure turbine section to the four-pole generator such that in operation the low-pressure turbine section drives the four-pole generator.

摘要翻译： 一种发电涡轮机系统，其包括：涡轮机，其包括三个部分，高压涡轮部分，中压涡轮部分和低压涡轮部分，每个部分驻留在单独的轴上; 2）一种轴向压缩机，其压缩与燃料混合并在燃烧器中燃烧的空气流，使得所产生的热气流引导通过涡轮机，轴向压缩机包括高压压缩机部分和低压 压缩机部分; 3）双极发电机; 4）四极发生器; 5）将高压涡轮部分连接到高压压缩机部分的第一轴，使得在操作中，高压涡轮部分驱动高压压缩机部分; 6）将中压涡轮部分连接到高压压缩机部分和两极发生器的第二轴，使得在运行中，中压涡轮部分驱动高压压缩机部分和两极发生器 ; 以及7）第三轴，其将所述低压涡轮机部分联接到所述四极发电机，使得在运行中所述低压涡轮部分驱动所述四极发电机。

公开(公告)号：US20090178468A1

公开(公告)日：2009-07-16

申请号：US11971954

申请日：2008-01-10

申请人： Tao Guo ,  Douglas C. Hofer ,  William J. Summer

发明人： Tao Guo ,  Douglas C. Hofer ,  William J. Summer

IPC分类号： G01N25/60 ,  G01M19/00

CPC分类号： F01K7/20

摘要： A method for calculating moisture loss in a steam turbine operating under wet steam conditions. The method may include the steps of: 1) assuming equilibrium expansion, calculating a flow field initialization to determine initial pressure values, initial expansion rate, initial velocity values at an inlet and an exit of each of a plurality of bladerows in the steam turbine, and initial enthalpy values through each of the plurality of bladerows in the steam turbine; 2) using the initial pressure values, the initial velocity values, and the initial enthalpy values, calculating an initial subcooling ΔT value through each of the plurality of bladerows of the steam turbine; 3) calculating an Wilson Point critical subcooling ΔT value through each of the plurality of bladerows of the steam turbine required for spontaneous nucleation to occur based on the initial pressure value and the initial expansion rate; and 4) comparing the initial subcooling ΔT values to the Wilson Point critical subcooling ΔT values to determine where spontaneous nucleation occurs through the plurality of bladerows of the steam turbine.

摘要翻译： 一种在湿蒸汽条件下运行的蒸汽轮机中的水分损失计算方法。 该方法可以包括以下步骤：1）假设平衡膨胀，计算流场初始化以确定初始压力值，初始膨胀率，蒸汽涡轮机中的多个叶轮中的每一个的入口和出口处的初始速度值， 以及通过所述蒸汽轮机中的所述多个叶片中的每一个的初始焓值; 2）使用初始压力值，初始速度值和初始焓值，通过蒸汽涡轮机的多个气缸中的每一个计算初始过冷度DeltaT值; 3）基于初始压力值和初始膨胀速率，通过自发成核所需的蒸汽涡轮机的多个蒸汽量中的每一个计算威尔逊点临界过冷度DeltaT值; 和4）将初始过冷度DeltaT值与威尔逊点临界过冷度DeltaT值进行比较，以确定通过蒸汽涡轮机的多个喷雾发生自发成核的位置。

公开(公告)号：US5524341A

公开(公告)日：1996-06-11

申请号：US312419

申请日：1994-09-26

申请人： Jurek Ferleger ,  Douglas C. Hofer

发明人： Jurek Ferleger ,  Douglas C. Hofer

IPC分类号： B21K3/04 ,  B23P15/02 ,  F01D5/16 ,  B23P15/00

CPC分类号： F01D5/16 ,  B21K3/04 ,  B23P15/02 ,  Y10T29/49321 ,  Y10T29/49323 ,  Y10T29/49336

摘要： A row of mix-tuned rotor blades for use in a turbomachine in which the first mode vibratory frequency of each of the blades falls into either of two distinct groups. The blades from the first group alternate with the blades from the second group so that no two adjacent blades have the same frequency, thereby inhibiting the onset of stall flutter. The blades are made by forging a forging blank between upper and lower die halves. The orientation of the upper die half relative to the lower die half when the die is fully closed is different depending on whether blades are being made for the first or second group, the difference being an offset in the position of the upper die half. As a result, the airfoils of the blades in the first and second groups have slightly different shapes, thereby resulting in the difference in resonant frequency.

摘要翻译： 用于涡轮机中的一排混合调节的转子叶片，其中每个叶片的第一模式振动频率落入两个不同组中的任一个。 来自第一组的叶片与来自第二组的叶片交替，使得没有两个相邻的叶片具有相同的频率，从而抑制失速颤动的发生。 刀片通过在上下半模之间锻造锻造坯料来制造。 根据刀片是否为第一组或第二组，上模半体相对于下半模的取向取决于刀片是否为第一组或第二组，该差是上模半部位置的偏移。 结果，第一和第二组中的叶片的翼型具有略微不同的形状，从而导致谐振频率的差异。

公开(公告)号：US08813494B2

公开(公告)日：2014-08-26

申请号：US13226543

申请日：2011-09-07

申请人： Douglas C. Hofer ,  Anthony Furman ,  Thomas Lavertu

发明人： Douglas C. Hofer ,  Anthony Furman ,  Thomas Lavertu

IPC分类号： F02B33/44 ,  F02B41/10 ,  F02B37/00 ,  F02B37/013 ,  F02B37/18

CPC分类号： F02B37/005 ,  F02B37/004 ,  F02B37/013 ,  F02B37/18 ,  F02B41/10 ,  F02D41/0007 ,  F02D41/045 ,  Y02T10/144 ,  Y02T10/163

摘要： Methods and systems are provided for operating a turbocharged engine. An engine system comprises a turbocharger, a bypass path, and a turbo-compound unit. The turbocharger may include a turbine mechanically coupled to a compressor. The turbo-compound unit may include a turbine mechanically coupled to a load, such as a generator. The turbo-compound unit may be coupled in a bypass path around the turbocharger turbine. In this manner, thermodynamic energy flowing through the bypass path may be harvested to increase the engine-operating efficiency. Further, gas flow through the bypass path may be adjusted to potentially improve the transient response of the turbocharger.

摘要翻译： 提供了用于操作涡轮增压发动机的方法和系统。 发动机系统包括涡轮增压器，旁路路径和涡轮复合单元。 涡轮增压器可以包括机械地联接到压缩机的涡轮机。 涡轮复合单元可以包括机械耦合到诸如发电机的负载的涡轮机。 涡轮复合单元可以在涡轮增压器涡轮机周围的旁路路径中联接。 以这种方式，可以收获流过旁路路径的热力学能量，以提高发动机运转效率。 此外，可以调节通过旁通路径的气体流动，以潜在地改善涡轮增压器的瞬态响应。