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公开(公告)号：EP1386386B1
公开(公告)日：2004-08-18
申请号：EP02720296.9
申请日：2002-05-01
IPC分类号： H02K49/04 , E21B7/06 , H02K16/02 , E21B17/02 , H02K7/18 , F04D29/66 , H02K17/34 , F04D13/10 , E21B41/00
CPC分类号： H02K49/043 , E21B4/04 , E21B7/068 , E21B41/0085 , F04D13/10 , F04D15/0066 , H02K7/1823 , H02K16/025 , H02K17/34
摘要： A combination of a torque-generating apparatus with an alternator/generator. The torque-generating apparatus comprises a first assembly (10, 25) including a generally cylindrical member of magnetically soft material and having a longitudinal axis, and a second assembly (2) arranged coaxially within the first assembly and including an electromagnetic winding (4). The first assembly (10, 25) and the second assembly (2) are rotatable relative to each other about the axis. Relative rotation between the first (10, 25) and second (2) assemblies induces a magnetic field which generates rotational torque between the first and second assemblies. Rectification means (31) is provided to convert alternating current electrical output from the alternator/generator (22) to provide D.C. current to the electromagnetic windings (4) of the torque generating apparatus to generate an electromagnetic braking effect.
摘要翻译： 扭矩产生装置与交流发电机/发电机的组合。 该扭矩产生设备包括：第一组件（10,25），其包括软磁材料的大致圆柱形构件并且具有纵向轴线;以及第二组件（2），其同轴地布置在第一组件中并且包括电磁绕组（4） 。 第一组件（10,25）和第二组件（2）可围绕轴线相对于彼此旋转。 第一组件（10,25）和第二组件（2）之间的相对旋转引起在第一组件和第二组件之间产生旋转扭矩的磁场。 提供整流装置（31）以转换来自交流发电机/发电机（22）的交流电输出以向转矩产生装置的电磁绕组（4）提供直流电流以产生电磁制动效应。
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公开(公告)号：EP1386387B1
公开(公告)日：2008-08-06
申请号：EP02720297.7
申请日：2002-05-01
IPC分类号： H02K49/04 , E21B7/06 , H02K16/02 , E21B17/02 , H02K7/18 , F04D29/66 , H02K17/34 , F04D13/10 , E21B41/00
CPC分类号： H02K49/043 , E21B4/04 , E21B7/068 , E21B41/0085 , F04D13/10 , F04D15/0066 , H02K7/1823 , H02K16/025 , H02K17/34
摘要： A torque-generating apparatus comprises a first assembly (10, 25) including a generally cylindrical member of magnetically soft material and having a longitudinal axis and a second assembly (2) arranged coaxially within the first assembly and including an electromagnetic winding (4). The first assembly (10, 25) and the second assembly (2) are rotatable relative to each other about the axis. Relative rotation between the first (10, 25) and second (2) assemblies induces a magnetic field which generates rotational torque between the first and second assemblies.
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公开(公告)号：EP1581721B1
公开(公告)日：2006-06-07
申请号：EP03700839.8
申请日：2003-01-07
IPC分类号： E21B47/12
CPC分类号： G01V11/002 , E21B17/003 , E21B47/122 , E21B47/182
摘要： A communication system for down hole use and comprising a drill collar (101) comprising a first portion (103) and a second portion (105) separated from each other by an electrically insulating material (67) and means (22, 63, 77, 81) for generating an electrical signal and for applying the electrical signal to the drill collar (101) such that the electrical signal is transmitted into a geological formation being drilled, characterised in that the means for generating the electrical signal comprises an alternator (22, 63, 77, 81) and means (2, 4, 10) responsive to an electrical output of the alternator for regulating rotation of the alternator.
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公开(公告)号：EP1581721A1
公开(公告)日：2005-10-05
申请号：EP03700839.8
申请日：2003-01-07
IPC分类号： E21B47/12
CPC分类号： G01V11/002 , E21B17/003 , E21B47/122 , E21B47/182
摘要： A communication system for down hole use and comprising a drill collar (101) comprising a first portion (103) and a second portion (105) separated from each other by an electrically insulating material (67) and means (22, 63, 77, 81) for generating an electrical signal and for applying the electrical signal to the drill collar (101) such that the electrical signal is transmitted into a geological formation being drilled, characterised in that the means for generating the electrical signal comprises an alternator (22, 63, 77, 81) and means (2, 4, 10) responsive to an electrical output of the alternator for regulating rotation of the alternator.
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公开(公告)号：EP1386387A1
公开(公告)日：2004-02-04
申请号：EP02720297.7
申请日：2002-05-01
IPC分类号： H02K49/04 , E21B7/06 , H02K16/02 , E21B17/02 , H02K7/18 , F04D29/66 , H02K17/34 , F04D13/10 , E21B41/00
CPC分类号： H02K49/043 , E21B4/04 , E21B7/068 , E21B41/0085 , F04D13/10 , F04D15/0066 , H02K7/1823 , H02K16/025 , H02K17/34
摘要： A torque-generating apparatus comprises a first assembly (10, 25) including a generally cylindrical member of magnetically soft material and having a longitudinal axis and a second assembly (2) arranged coaxially within the first assembly and including an electromagnetic winding (4). The first assembly (10, 25) and the second assembly (2) are rotatable relative to each other about the axis. Relative rotation between the first (10, 25) and second (2) assemblies induces a magnetic field which generates rotational torque between the first and second assemblies.
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公开(公告)号：EP1386386A1
公开(公告)日：2004-02-04
申请号：EP02720296.9
申请日：2002-05-01
IPC分类号： H02K49/04 , E21B7/06 , H02K16/02 , E21B17/02 , H02K7/18 , F04D29/66 , H02K17/34 , F04D13/10 , E21B41/00
CPC分类号： H02K49/043 , E21B4/04 , E21B7/068 , E21B41/0085 , F04D13/10 , F04D15/0066 , H02K7/1823 , H02K16/025 , H02K17/34
摘要： A combination of a torque-generating apparatus with an alternator/generator. The torque-generating apparatus comprises a first assembly (10, 25) including a generally cylindrical member of magnetically soft material and having a longitudinal axis, and a second assembly (2) arranged coaxially within the first assembly and including an electromagnetic winding (4). The first assembly (10, 25) and the second assembly (2) are rotatable relative to each other about the axis. Relative rotation between the first (10, 25) and second (2) assemblies induces a magnetic field which generates rotational torque between the first and second assemblies. Rectification means (31) is provided to convert alternating current electrical output from the alternator/generator (22) to provide D.C. current to the electromagnetic windings (4) of the torque generating apparatus to generate an electromagnetic braking effect.
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