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1. 发明授权

US5135355A Rotor with internal electrical heating element 失效
标题翻译：带内部电加热元件的转子
公开(公告)号：US5135355A
公开(公告)日：1992-08-04
申请号：US740441
申请日：1991-08-05
申请人： Michael I. Colley , John T. Griffith , Charles A. Rowbottom
发明人： Michael I. Colley , John T. Griffith , Charles A. Rowbottom
IPC分类号： B01F7/00 , B01F15/00 , B01F15/06
CPC分类号： B01F7/00016 , B01F15/068 , B01F7/00033
摘要： A heated rotor is provided to heat and circulate a substance comprising a shaft and at least one electrically heated rotor member supported on the shaft. The rotor member comprises an outer electrically conductive casing and at least one inner electrical conductor, electrically insulated from the casing. The or each inner conductor is electrically connected to the outer electrically conductive casing at an unsupported extremity of the rotor member. The shaft provides separate electrical connections to the or each inner conductor and the casing to enable an electric heating current to flow in the inner conductor between the or each unsupported blade extremity and the shaft.
摘要翻译：提供加热转子以加热和循环包括轴的物质和支撑在轴上的至少一个电加热的转子部件。转子构件包括外部导电壳体和至少一个与壳体电绝缘的内部电气导体。该内导体或每个内导体在转子构件的未支撑的末端电连接到外导电壳体。轴为每个内部导体和外壳提供单独的电气连接，以使得电加热电流能够在内部导体之间流动，在这些或每个未支撑的叶片末端和轴之间。

2. 发明授权

US4678881A Induction apparatus for heating and mixing a fluid 失效
标题翻译：用于加热和混合流体的感应装置
公开(公告)号：US4678881A
公开(公告)日：1987-07-07
申请号：US867994
申请日：1986-05-28
申请人： John T. Griffith
发明人： John T. Griffith
IPC分类号： B01F15/06 , H05B6/10
CPC分类号： B01F15/068 , B01F7/00583 , H05B6/108 , B01F2015/062
摘要： The simultaneous heating and mixing of a fluid in a vessel with heated walls and a stirring device can lead to excessively high temperatures at the walls due to the formation of a thick boundary layer. This specification discloses a stirring paddle incorporating a heated element and mounted on a rotatable shaft. The heating element is connected in series with a rotor winding mounted on the shaft so that, when the shaft rotates, a heating current flows through the heating element.
摘要翻译：容器中加热壁和搅拌装置同时加热和混合流体会导致由于形成厚边界层而在壁处过高的温度。本说明书公开了一种装有加热元件并安装在可旋转轴上的搅拌桨。加热元件与安装在轴上的转子绕组串联连接，使得当轴旋转时，加热电流流过加热元件。

3. 发明授权

US4629844A Induction heater having an alternating current conductor 失效
标题翻译：具有交流导体的感应加热器
公开(公告)号：US4629844A
公开(公告)日：1986-12-16
申请号：US770133
申请日：1985-08-28
申请人： John T. Griffith , Carlos Lopez-Cacicedo , Stephen M. L. Hamblyn
发明人： John T. Griffith , Carlos Lopez-Cacicedo , Stephen M. L. Hamblyn
IPC分类号： H05B6/02 , H05B6/10
CPC分类号： H05B6/105 , B29C47/0845 , B29C47/6006 , B29C47/842 , B29C47/845
摘要： An induction heater has a conductor loop (1) in which a large alternating current is induced by a toroidal primary transformer (8). An annular secondary magnetic core (4) encircles a straight length of the conductor loop (1) and is itself enclosed by inner and outer cylinders (2 and 5) interconnected by annular end plates (6 and 9). The current in the conductor (1) produces magnetic flux in the core (4) which in turn produces axial heating currents in the cylinders (2 and 5). The inner cylinder (5) may have heated fins (3). An alternative embodiment has an inductively heated screw.
摘要翻译：感应加热器具有导体回路（1），其中环形主变压器（8）感应出大的交流电。环形二次磁芯（4）围绕导体环（1）的直线长度，并且由环形端板（6和9）相互连接的内外缸（2和5）自身封闭。导体（1）中的电流在磁芯（4）中产生磁通，这又产生气缸（2和5）中的轴向加热电流。内筒（5）可以具有加热的翅片（3）。替代实施例具有感应加热的螺丝。

4. 发明授权

US5455402A Induction heater having a conductor with a radial heating element 失效
标题翻译：感应加热器具有带径向加热元件的导体
公开(公告)号：US5455402A
公开(公告)日：1995-10-03
申请号：US244927
申请日：1994-06-14
申请人： John T. Griffith
发明人： John T. Griffith
IPC分类号： H05B6/02 , H05B6/10
CPC分类号： H05B6/107 , B29C47/0845 , B29C47/6006 , B29C47/842 , B29C47/845
摘要： An induction heater is provided which has an electrical conductor (40) extending along an axis B. At least one solid heating element (43) for contacting and transferring heat to a material to be heated extends radially from the axis B and is formed of electrically conductive and preferably ferromagnetic material. An alternating electric current is supplied to the electrical conductor (40) to induce an electric current in a closed loop defined by a surface layer of the or each heating element (43) to generate heat therein. Induced eddy currents are confined to a surface layer due to the skin effect. The radial and axial thickness of the heating elements (43) is greater than twice the skin depth of the electrically conductive material at the frequency of the alternating electric current. Preferably the heating element (43) is in the form of a screw arranged on an electrically conductive heating member (42).
摘要翻译： PCT No.PCT / GB92 / 02343 Sec。 371日期：1994年6月14日 102（e）日期1994年6月14日PCT提交1992年12月17日PCT公布。公开号WO93 / 12627 日期：1993年6月24日。提供一种感应加热器，其具有沿着轴线B延伸的电导体（40）。用于接触和传递热量至待加热材料的至少一个固体加热元件（43）轴线B并由导电且优选铁磁材料形成。向电导体（40）提供交流电流以在由该或每个加热元件（43）的表面层限定的闭环中引起电流，以在其中产生热量。由于皮肤效应，引起的涡流限制在表层。在交流电流的频率下，加热元件（43）的径向和轴向厚度大于导电材料的趋肤深度的两倍。优选地，加热元件（43）是布置在导电加热构件（42）上的螺钉形式。

5. 发明授权

US5274207A Induction heater 失效
标题翻译：感应加热器
公开(公告)号：US5274207A
公开(公告)日：1993-12-28
申请号：US743512
申请日：1991-08-12
申请人： John T. Griffith
发明人： John T. Griffith
IPC分类号： H05B6/02 , H05B6/10 , H05B6/64
CPC分类号： H05B6/108
摘要： An induction heater for heating a material is described which has an alternating current carrying conductor 30 extending along an axis of rotation. Mounted about the axis are containers 32 which rotate about the axis and hold the material to be heated. A core 34 is provided encircling the alternating current carrying conductor 30. The core 34 guides the magnetic flux resulting from an alternating current flowing in the conductor 30 to induce a current in the inner sleeve 38 between the conductor 30 and core 34. Current flowing in the inner sleeve 38 is conducted to end plates 40 and 42 and through the containers 32. The containers 32 are heated by the electrical current induced by the magnetic flux in the core 34.

6. 发明授权

US4843201A Induction heater coupling control by core saturation 失效
标题翻译：感应加热器耦合控制由磁芯饱和
公开(公告)号：US4843201A
公开(公告)日：1989-06-27
申请号：US198253
申请日：1988-05-17
申请人： John T. Griffith
发明人： John T. Griffith
IPC分类号： H05B6/02 , H05B6/06
CPC分类号： H05B6/105 , H05B6/06
摘要： An induction heater comprising an alternating-current-carrying conductor (1) extending along an axis; a plurality of core sections (3, 4, 5) arranged in line and each substantially encircling the axis to guide magnetic flux resulting from the alternating current in the conductor (1); a plurality of heating element sections respectively associated with the core sections and each comprising an electrically conductive closed loop encircling magnetic flux in the associated core section (3, 4, 5) and being heated by electrical current induced thereby; and means (13, 14) to at least partially saturate at least one (4, 5) of the core sections thereby to reduce the coupling between the conductor (1) and the heating element section associated with said one core section (4, 5) and thus control the heating effected by said one core section (4, 5) and its associated heating element section (FIG. 4).

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