公开(公告)号：US08276380B2

公开(公告)日：2012-10-02

申请号：US12558854

申请日：2009-09-14

申请人： Terizhandur S. Ramakrishnan ,  Sandeep Verma ,  Wenlin Zhang ,  Philippe Lacour-Gayet ,  Muthusamy Vembusubramanian

发明人： Terizhandur S. Ramakrishnan ,  Sandeep Verma ,  Wenlin Zhang ,  Philippe Lacour-Gayet ,  Muthusamy Vembusubramanian

IPC分类号： F03G7/00

CPC分类号： F04D25/04 ,  F25J1/0022 ,  F25J1/0037 ,  F25J1/004 ,  F25J1/0045 ,  F25J1/0201 ,  F25J1/0229 ,  F25J1/0232 ,  F25J2260/80 ,  F25J2270/06 ,  Y02C10/14

摘要： A zero-emissions power plant receives natural gas from wells at elevated pressure and temperature. Gas is expanded through one or more turbo-expanders, preferably reformed, and sent to a fuel cell where electricity, heat, carbon-dioxide, and water are generated. The carbon-dioxide is compressed by at least one compressor and piped downhole for sequestration. The turbo-expanders have shafts which preferably share the shafts of the compressors. Thus, energy given up by the natural gas in the turbo-expanders is used to run compressors which compress carbon dioxide for downhole sequestration. In one embodiment, the natural gas is applied to heat exchangers in order to generate a stream of liquid natural gas. The remainder of the gas is expanded through the turbo-expanders and processed in the reformer prior to being sent to the fuel cell. A shifter may be used between the reformer and fuel cell. A solid oxide fuel cell is preferred.

摘要翻译： 零排放发电厂在高压和高温下从井中接收天然气。 气体通过一个或多个涡轮膨胀机膨胀，优选重整，并送到燃料电池，其中产生电，热，二氧化碳和水。 二氧化碳被至少一个压缩机压缩并通过井下管道进行封存。 涡轮膨胀机具有优选地共享压缩机的轴的轴。 因此，涡轮膨胀机中的天然气放弃的能量用于运行压缩二氧化碳进行井下隔离的压缩机。 在一个实施例中，将天然气施加到热交换器以产生液态天然气流。 气体的剩余部分通过涡轮膨胀机膨胀，并在被送入燃料电池之前在重整器中进行处理。 可以在重整器和燃料电池之间使用换档器。 固体氧化物燃料电池是优选的。

公开(公告)号：US20100000215A1

公开(公告)日：2010-01-07

申请号：US12558854

申请日：2009-09-14

申请人： Terizhandur S. Ramakrishnan ,  Sandeep Verma ,  Wenlin Zhang ,  Philippe Lacour-Gayet ,  Muthusamy Vembusubramanian

发明人： Terizhandur S. Ramakrishnan ,  Sandeep Verma ,  Wenlin Zhang ,  Philippe Lacour-Gayet ,  Muthusamy Vembusubramanian

IPC分类号： F03G7/00

CPC分类号： F04D25/04 ,  F25J1/0022 ,  F25J1/0037 ,  F25J1/004 ,  F25J1/0045 ,  F25J1/0201 ,  F25J1/0229 ,  F25J1/0232 ,  F25J2260/80 ,  F25J2270/06 ,  Y02C10/14

摘要： A zero-emissions power plant receives natural gas from wells at elevated pressure and temperature. Gas is expanded through one or more turbo-expanders, preferably reformed, and sent to a fuel cell where electricity, heat, carbon-dioxide, and water are generated. The carbon-dioxide is compressed by at least one compressor and piped downhole for sequestration. The turbo-expanders have shafts which preferably share the shafts of the compressors. Thus, energy given up by the natural gas in the turbo-expanders is used to run compressors which compress carbon dioxide for downhole sequestration. In one embodiment, the natural gas is applied to heat exchangers in order to generate a stream of liquid natural gas. The remainder of the gas is expanded through the turbo-expanders and processed in the reformer prior to being sent to the fuel cell. A shifter may be used between the reformer and fuel cell. A solid oxide fuel cell is preferred.

摘要翻译： 零排放发电厂在高压和高温下从井中接收天然气。 气体通过一个或多个涡轮膨胀机膨胀，优选重整，并送到燃料电池，其中产生电，热，二氧化碳和水。 二氧化碳被至少一个压缩机压缩并通过井下管道进行封存。 涡轮膨胀机具有优选地共享压缩机的轴的轴。 因此，涡轮膨胀机中的天然气放弃的能量用于运行压缩二氧化碳进行井下隔离的压缩机。 在一个实施例中，将天然气施加到热交换器以产生液态天然气流。 气体的剩余部分通过涡轮膨胀机膨胀，并在被送入燃料电池之前在重整器中进行处理。 可以在重整器和燃料电池之间使用换档器。 固体氧化物燃料电池是优选的。

公开(公告)号：US07607303B2

公开(公告)日：2009-10-27

申请号：US11616591

申请日：2006-12-27

申请人： Terizhandur S. Ramakrishnan ,  Sandeep Verma ,  Wenlin Zhang ,  Philippe Lacour-Gayet ,  Muthusamy Vembusubramanian

发明人： Terizhandur S. Ramakrishnan ,  Sandeep Verma ,  Wenlin Zhang ,  Philippe Lacour-Gayet ,  Muthusamy Vembusubramanian

IPC分类号： F03G7/00

CPC分类号： F04D25/04 ,  F25J1/0022 ,  F25J1/0037 ,  F25J1/004 ,  F25J1/0045 ,  F25J1/0201 ,  F25J1/0229 ,  F25J1/0232 ,  F25J2260/80 ,  F25J2270/06 ,  Y02C10/14

摘要： A zero-emissions power plant receives natural gas from wells at elevated pressure and temperature. Gas is expanded through one or more turbo-expanders, preferably reformed, and sent to a fuel cell where electricity, heat, carbon-dioxide, and water are generated. The carbon-dioxide is compressed by at least one compressor and piped downhole for sequestration. The turbo-expanders have shafts which preferably share the shafts of the compressors. Thus, energy given up by the natural gas in the turbo-expanders is used to run compressors which compress carbon dioxide for downhole sequestration. In one embodiment, the natural gas is applied to heat exchangers in order to generate a stream of liquid natural gas. The remainder of the gas is expanded through the turbo-expanders and processed in the reformer prior to being sent to the fuel cell. A shifter may be used between the reformer and fuel cell. A solid oxide fuel cell is preferred.

摘要翻译： 零排放发电厂在高压和高温下从井中接收天然气。 气体通过一个或多个涡轮膨胀机膨胀，优选重整，并送到燃料电池，其中产生电，热，二氧化碳和水。 二氧化碳被至少一个压缩机压缩并通过井下管道进行封存。 涡轮膨胀机具有优选地共享压缩机的轴的轴。 因此，涡轮膨胀机中的天然气放弃的能量用于运行压缩二氧化碳进行井下隔离的压缩机。 在一个实施例中，将天然气施加到热交换器以产生液态天然气流。 气体的剩余部分通过涡轮膨胀机膨胀，并在被送入燃料电池之前在重整器中进行处理。 可以在重整器和燃料电池之间使用换档器。 固体氧化物燃料电池是优选的。

公开(公告)号：US20080155958A1

公开(公告)日：2008-07-03

申请号：US11616591

申请日：2006-12-27

申请人： Terizhandur S. Ramakrishnan ,  Sandeep Verma ,  Wenlin Zhang ,  Philippe Lacour-Gayet ,  Muthusamy Vembusubramanian

发明人： Terizhandur S. Ramakrishnan ,  Sandeep Verma ,  Wenlin Zhang ,  Philippe Lacour-Gayet ,  Muthusamy Vembusubramanian

IPC分类号： F02G3/00 ,  F25J1/00

CPC分类号： F04D25/04 ,  F25J1/0022 ,  F25J1/0037 ,  F25J1/004 ,  F25J1/0045 ,  F25J1/0201 ,  F25J1/0229 ,  F25J1/0232 ,  F25J2260/80 ,  F25J2270/06 ,  Y02C10/14

摘要： A zero-emissions power plant receives natural gas from wells at elevated pressure and temperature. Gas is expanded through one or more turbo-expanders, preferably reformed, and sent to a fuel cell where electricity, heat, carbon-dioxide, and water are generated. The carbon-dioxide is compressed by at least one compressor and piped downhole for sequestration. The turbo-expanders have shafts which preferably share the shafts of the compressors. Thus, energy given up by the natural gas in the turbo-expanders is used to run compressors which compress carbon dioxide for downhole sequestration. In one embodiment, the natural gas is applied to heat exchangers in order to generate a stream of liquid natural gas. The remainder of the gas is expanded through the turbo-expanders and processed in the reformer prior to being sent to the fuel cell. A shifter may be used between the reformer and fuel cell. A solid oxide fuel cell is preferred.

摘要翻译： 零排放发电厂在高压和高温下从井中接收天然气。 气体通过一个或多个涡轮膨胀机膨胀，优选重整，并送到燃料电池，其中产生电，热，二氧化碳和水。 二氧化碳被至少一个压缩机压缩并通过井下管道进行封存。 涡轮膨胀机具有优选地共享压缩机的轴的轴。 因此，涡轮膨胀机中的天然气放弃的能量用于运行压缩二氧化碳进行井下隔离的压缩机。 在一个实施例中，将天然气施加到热交换器以产生液态天然气流。 气体的剩余部分通过涡轮膨胀机膨胀，并在被送入燃料电池之前在重整器中进行处理。 可以在重整器和燃料电池之间使用换档器。 固体氧化物燃料电池是优选的。

公开(公告)号：US09312557B2

公开(公告)日：2016-04-12

申请号：US11126524

申请日：2005-05-11

申请人： Wenlin Zhang ,  Terizhandur S. Ramakrishnan ,  Joseph Walter ,  Albert Perez, Jr.

发明人： Wenlin Zhang ,  Terizhandur S. Ramakrishnan ,  Joseph Walter ,  Albert Perez, Jr.

IPC分类号： H01M8/10 ,  E21B49/08 ,  H01M8/24 ,  E21B41/00 ,  H01M8/04 ,  H01M8/18

CPC分类号： E21B41/0085 ,  E21B4/04 ,  H01M8/0273 ,  H01M8/04089 ,  H01M8/04104 ,  H01M8/04291 ,  H01M8/04365 ,  H01M8/04388 ,  H01M8/04395 ,  H01M8/04559 ,  H01M8/04589 ,  H01M8/04753 ,  H01M8/0488 ,  H01M8/0491 ,  H01M8/0656 ,  H01M8/186 ,  H01M8/241 ,  Y02E60/528 ,  Y02P70/56

摘要： A rechargeable power system comprising: a drill string configured to operate in a well bore, the drill string comprising: a fuel cell system; a generator in electrical communication with the fuel cell system; a turbine, configured to rotate due to an impingement of drilling mud on one or more turbine blades, the turbine in operable communication with the generator; and where the fuel cell system is configured to provide power at least when drilling mud is not circulating in the well bore, and further configured to be recharged by the generator when drilling mud is circulating in the well bore. A method for operating a rechargeable downhole fuel cell. The method comprises: monitoring a fluid supply pressure; determining whether the fluid supply pressure is below a threshold value; and stopping a fuel cell discharge if the fluid supply pressure is below the threshold value.

公开(公告)号：US07509132B2

公开(公告)日：2009-03-24

申请号：US11267454

申请日：2005-11-04

申请人： Xiaoqin Duan ,  Wenlin Zhang

发明人： Xiaoqin Duan ,  Wenlin Zhang

IPC分类号： H04W24/00 ,  H04W4/00

CPC分类号： H04W4/02 ,  H04L69/329 ,  H04W4/20

摘要： Disclosed herein is a method useful for target user equipment (UE) sending a location report. When the target UE is located in a first central network (CN) of a location service (LCS) system, the target UE reports the location report to the LCS system. If the target UE does not receive a location report response from the LCS system, when being located in a second CN of LCS system, target UE will continue to report the location report to LCS system. In accordance with one aspect of the disclosed method, the waste of location service system resource is avoided as well as the execution efficiency of location service is increased. In addition, during procedure of change of area event location request, the consequent processing of request thereof is guaranteed to be normal, so that execution efficiency of location service is increased. Moreover, message interaction between the function entities is saved for the exception cases. Accordingly, the waste of public land mobile communication network resource caused by generation of excessive useless messages is avoided.

摘要翻译： 本文公开了一种对目标用户设备（UE）发送位置报告有用的方法。 当目标UE位于位置服务（LCS）系统的第一中央网络（CN）时，目标UE向LCS系统报告位置报告。 如果目标UE没有从LCS系统接收到位置报告响应，则当目标UE位于LCS系统的第二CN时，目标UE将继续向LCS系统报告位置报告。 根据所公开的方法的一个方面，避免了位置服务系统资源的浪费，并且增加了定位服务的执行效率。 另外，在区域事件定位请求的更改过程中，对其请求的后续处理被保证是正常的，从而增加了定位服务的执行效率。 此外，针对异常情况保存了功能实体之间的消息交互。 因此，避免了由于产生过多无用的消息而导致的公共陆地移动通信网络资源的浪费。

公开(公告)号：US07277698B2

公开(公告)日：2007-10-02

申请号：US11086736

申请日：2005-03-18

申请人： Wenlin Zhang ,  Lixin Sun

发明人： Wenlin Zhang ,  Lixin Sun

IPC分类号： H04M3/42

CPC分类号： H04M3/42195 ,  H04M2207/18 ,  H04W40/00 ,  H04W76/12

摘要： A Proxy for calls to a roaming subscriber CRP including a voice bear and a signaling management module, a call access control module, a message processing module, and a waiting call data storage module; and a proxy method for calls to a roaming subscriber including initiating a request to the CRP; the CRP informs the roaming subscriber to call back; and then accomplishing the call switching for the calling subscriber and the called subscriber; and with the afore-mentioned device and method, both the calling subscriber and the called subscriber in this call actually act as a calling party from the viewpoint of the CRP, to avoid unnecessary long distance call costs for both parties and improving communication quality for roaming subscribers.

摘要翻译： 用于呼叫漫游用户CRP的代理，包括语音承载和信令管理模块，呼叫接入控制模块，消息处理模块和等待呼叫数据存储模块; 以及用于对漫游用户的呼叫的代理方法，包括发起对CRP的请求; CRP通知漫游用户回叫; 然后完成呼叫用户和被叫用户的呼叫切换; 并且利用上述设备和方法，从该呼叫的角度来看，主叫用户和被叫用户两者都实际上充当呼叫方，以避免双方不必要的长途呼叫成本，并提高漫游通信质量 订阅者。

公开(公告)号：US20070189215A1

公开(公告)日：2007-08-16

申请号：US10585288

申请日：2005-01-06

申请人： Yajuan Wu ,  Wenlin Zhang

发明人： Yajuan Wu ,  Wenlin Zhang

IPC分类号： H04Q7/00

CPC分类号： H04W8/12 ,  H04L65/1016 ,  H04L65/1073

摘要： The present invention provides a method for reducing the load on Home Subscriber Server (HSS)'s interface. After receiving a request message from Serving Call Session Control Function (S-CSCF) comprising the request for storing the name of the S-CSCF and for downloading the user's subscription information, HSS first stores the name of S-CSCF in the request message, then returns to the S-CSCF a response message comprising the user's subscription information. This invention simplifies the steps of inquiring about the user's subscription information, optimizes the service procedure, and reduces the load on HSS's interface. In addition, when receiving the inquiry message from I-CSCF, HSS returns directly to I-CSCF response message comprising the S-CSCF name and the S-CSCF capability information set that has the capability to meet the most strict service subscription requirement of the UE, further reducing the load on HSS's interface. This invention has no impact on the existing network architecture and services, nor is it needed to modify the existing interface specifications, thus being highly compatible and extendable.

摘要翻译： 本发明提供一种降低归属用户服务器（HSS）接口负载的方法。 在收到包含存储S-CSCF名称的请求的服务呼叫会话控制功能（S-CSCF）的请求消息和下载用户的订阅信息之后，HSS先将S-CSCF的名称存储在请求消息中， 然后向S-CSCF返回包含用户订阅信息的响应消息。 本发明简化了查询用户订阅信息，优化业务流程，降低了HSS接口负载的步骤。 另外，当从I-CSCF接收到查询消息时，HSS直接返回到包含S-CSCF名称和S-CSCF能力信息集的I-CSCF响应消息，该消息具有满足最严格的业务订阅要求的能力 UE进一步降低了HSS接口的负载。 本发明对现有的网络架构和服务没有影响，也不需要修改现有的接口规范，从而具有高度兼容性和可扩展性。

公开(公告)号：US20070054676A1

公开(公告)日：2007-03-08

申请号：US10563259

申请日：2004-07-02

申请人： Xiaoqin Duan ,  Wenlin Zhang

发明人： Xiaoqin Duan ,  Wenlin Zhang

IPC分类号： H04Q7/20

CPC分类号： H04W64/00 ,  H04W92/06

摘要： The present invention discloses a method for processing a location information request in a location service, comprising: a location information request initiator sending a location information request containing a processing indication to a location information request receiver; after receiving the location information request, the location information request receiver determining whether to perform synchronous processing or asynchronous processing for the location information request according to type of the processing indication, and then implementing corresponding processing for the location information request. This method is capable of effectively saving system resource of a LCS system, avoiding resource waste at a location service interface and increasing processing performance of a location service.

摘要翻译： 本发明公开了一种在位置服务中处理位置信息请求的方法，包括：位置信息请求发起者向位置信息请求接收者发送包含处理指示的位置信息请求; 在接收到位置信息请求之后，位置信息请求接收机根据处理指示的类型确定是否对位置信息请求进行同步处理或异步处理，然后对位置信息请求进行相应的处理。 该方法能够有效地节省LCS系统的系统资源，避免位置业务接口的资源浪费，提高定位业务的处理性能。

公开(公告)号：US20060187892A1

公开(公告)日：2006-08-24

申请号：US11348922

申请日：2006-02-06

申请人： Wenlin Zhang

发明人： Wenlin Zhang

IPC分类号： H04Q7/24

CPC分类号： H04W48/18 ,  H04L63/0892 ,  H04W12/06 ,  H04W74/00 ,  H04W84/12

摘要： The present invention discloses an interactive method for determining network selection information of user terminal in wireless local area network (WLAN). In the present invention, a user terminal covered by more than one WLAN inquires each detected WLAN successively in turn using preset initial network selection information. If the current WLAN access network is directly connected with the initially selected network of the user terminal, the initially selected network of the user terminal is determined to be the network to be accessed. If the current WLAN access network is not directly connected with the initially selected network of the user terminal, the next WLAN is inquired, and so on, until a WLAN access network directly connected with the initially selected network of the user terminal is found. If all the WLAN access networks have been inquired and there is no WLAN access network that is directly connected with the initially selected network of the user terminal, the process ends, or the user terminal can select an appropriate network to access from among all of the visited networks. The invention can allow a user terminal covered by more than one WLAN to select an appropriate wireless communication network to access.

摘要翻译： 本发明公开了一种用于确定无线局域网（WLAN）中的用户终端的网络选择信息的交互方法。 在本发明中，由多个WLAN覆盖的用户终端依次使用预设的初始网络选择信息来连续地查询所检测到的WLAN。 如果当前的WLAN接入网络与用户终端的初始选择的网络直接相连，那么确定用户终端的初始选择的网络是要访问的网络。 如果当前的WLAN接入网络与用户终端的初始选择的网络不直接相连，则查询下一个WLAN，直至找到与用户终端的初始选择的网络直接相连的WLAN接入网络。 如果已经查询了所有WLAN接入网络，并且没有与用户终端的初始选择的网络直接相连的WLAN接入网络，则该过程结束，或者用户终端可以从全部 访问网络。 本发明可以允许由多于一个WLAN覆盖的用户终端选择适当的无线通信网络进行访问。