公开(公告)号：US20110218072A1

公开(公告)日：2011-09-08

申请号：US13035683

申请日：2011-02-25

申请人： Charles B. Lohr ,  John W. Sherrill ,  Brad P. Pohl ,  Robert Dawson ,  Corey Pew

发明人： Charles B. Lohr ,  John W. Sherrill ,  Brad P. Pohl ,  Robert Dawson ,  Corey Pew

IPC分类号： F16H15/50

CPC分类号： F16H15/50 ,  F16H15/28 ,  F16H15/40 ,  F16H15/503

摘要： Inventive embodiments are directed to components, subassemblies, systems, and/or methods for infinitely variable transmissions (IVT). In one embodiment, a control system is adapted to facilitate a change in the ratio of an IVT. In another embodiment, a control system includes a carrier member configured to have a number of radially offset slots. Various inventive carrier members and carrier drivers can be used to facilitate shifting the ratio of an IVT. In some embodiments, the traction planet assemblies include planet axles configured to cooperate with the carrier members. In one embodiment, the carrier member is configured to rotate and apply a skew condition to each of the planet axles. In some embodiments, a carrier member is operably coupled to a carrier driver. In some embodiments, the carrier member is configured to couple to a source of rotational power. Among other things, shift control interfaces for an IVT are disclosed.

摘要翻译： 发明实施例涉及用于无级变速器（IVT）的部件，子组件，系统和/或方法。 在一个实施例中，控制系统适于促进IVT比例的变化。 在另一个实施例中，控制系统包括构造成具有多个径向偏移槽的承载构件。 可以使用各种本发明的载体构件和载体驱动器来促进IVT的比例的移动。 在一些实施例中，牵引行星架组件包括构造成与承载构件配合的行星轴。 在一个实施例中，承载构件被构造成旋转并向每个行星轮应用偏斜状态。 在一些实施例中，载体构件可操作地联接到载体驱动器。 在一些实施例中，载体构件被配置成耦合到旋转动力源。 其中，公开了用于IVT的换档控制接口。

公开(公告)号：US5607372A

公开(公告)日：1997-03-04

申请号：US372771

申请日：1995-01-13

申请人： Charles B. Lohr

发明人： Charles B. Lohr

IPC分类号： F16C19/30 ,  F16C19/46 ,  F16C23/00 ,  F16C25/08 ,  F16H15/38 ,  F16H37/08 ,  F16H37/12

CPC分类号： F16H37/086 ,  F16H15/38 ,  F16H2015/383 ,  F16H2037/088

摘要： A transmission having a power input and output that run along the same axis without having to use parallel shafting. The transmission is of the type which includes a toroidal drive and a co-axial drive, with the co-axial drive having a rotating planetary carrier that bisects the reaction path between one disk pair of the toroidal drive. With such a bisecting carrier, the co-axial drive enables power from an input shaft to be transmitted to a co-axial output shaft in a compact and space saving manner,

摘要翻译： 具有功率输入和输出的变速器，其沿同一轴线延伸而不必使用平行轴系。 传动装置是包括环形驱动装置和同轴驱动装置的类型，其中同轴驱动装置具有一个旋转的行星架，它将环形驱动装置的一个盘对之间的反作用通路平分。 通过这种二等分载体，同轴驱动使得来自输入轴的动力能够以紧凑且节省空间的方式传递到同轴输出轴，

公开(公告)号：US4996891A

公开(公告)日：1991-03-05

申请号：US428974

申请日：1989-10-30

申请人： Charles E. Kraus ,  Charles B. Lohr

发明人： Charles E. Kraus ,  Charles B. Lohr

IPC分类号： F16H15/38

CPC分类号： F16H15/38

摘要： In an infinitely variable transmission wherein two toric traction discs are rotatably supported opposite one another so as to define therebetween a toric cavity in which at least two motion transmitting traction rollers are disposed in engagement with the toric discs and supported by pivot trunnions, and in which each pivot trunnion is provided with a single support roller disposed on a track section and has an axial control end which is supported so as to be movable in a plane normal to the axis of the toric discs, the support rollers are engaged by track members which are tiltably supported and associated with the control ends of the trunnions so as to transmit transmission torque reaction forces to the track members for forcing the traction rollers into engagement with the toric discs and means are provided for controllably moving the trunnion control ends for initiation of a transmission ratio change.

公开(公告)号：US4974466A

公开(公告)日：1990-12-04

申请号：US441322

申请日：1989-11-27

申请人： Charles E. Kraus ,  Charles B. Lohr

发明人： Charles E. Kraus ,  Charles B. Lohr

IPC分类号： F16H15/38

CPC分类号： F16H15/38

摘要： In an infinitely variable transmission wherein two toric traction discs are rotatably supported opposite one another so as to define therebetween a toric cavity in which at least two motion transmitting traction rollers are disposed in engagement with the toric discs and supported by pivot trunnions, means are provided for controllably pivoting the trunnions for a transmission ratio change, and cross-links are mounted to the end faces of the trunnions so as to permit pivotal motion of the trunnions only in unison and in an opposite sense, the cross-links have overlapping center sections with stop surfaces arranged to engage one another in the pivotal end positions of the trunnions for limiting their pivotal movement.

公开(公告)号：US5330396A

公开(公告)日：1994-07-19

申请号：US991321

申请日：1992-12-16

申请人： Charles B. Lohr ,  William J. Heidemann

发明人： Charles B. Lohr ,  William J. Heidemann

IPC分类号： F16H15/38 ,  F16H61/662 ,  F16H15/08

CPC分类号： F16H61/6649 ,  F16H15/38 ,  F16H2015/383

摘要： A compact structure is provided for an continuously variable transmission, which provides a more direct application of both load and control forces at the pivot trunnion. Load forces are produced from within the pivot trunnion, providing more direct control over load forces and their effect on contact forces between traction rollers and toric discs. Control forces which establish the desired transmission ratio are applied to the pivot trunnion in a manner which substantially eliminates twisting and squirming of the support rollers. High efficiency in operation, and improved assembly is provided with the compact structure disclosed.

摘要翻译： 提供了一种用于无级变速器的紧凑结构，其提供了在枢转耳轴处的负载和控制力的更直接的应用。 负载力从枢轴耳轴内产生，可以更好地控制负载力及其对牵引辊和复曲面盘之间接触力的影响。 建立所需传动比的控制力以基本上消除了支撑辊的扭转和振动的方式施加到枢转耳轴。 提供了高效率的操作和改进的组装，其中公开了紧凑的结构。

公开(公告)号：US4800853A

公开(公告)日：1989-01-31

申请号：US142477

申请日：1988-01-11

申请人： Charles E. Kraus ,  Charles B. Lohr

发明人： Charles E. Kraus ,  Charles B. Lohr

IPC分类号： F02B1/04 ,  F02B41/00 ,  F16J1/02 ,  F02F1/00

CPC分类号： F02B41/00 ,  F16J1/02 ,  F02B1/04

摘要： In an adiabatic internal combustion engine with a piston movably disposed in a cylinder to which air and fuel are admitted for combustion therein and from which the gases generated during combustion are discharged after extraction of energy therefrom, the cylinder includes a piston guide and seal structure having piston seal rings associated therewith and has a wall structure of heat resistant material and the piston has a guided section adapted to move back and forth through the guide and seal structure and a cap of heat resistant material disposed on top of the guided piston section and having a cylindrical side wall slightly spaced from the heat resistant cylinder wall.

摘要翻译： 在具有活塞可移动地设置在气缸中的活塞的绝热内燃机中，空气和燃料被允许在其中燃烧，并且在燃烧之后产生的气体在其中从其中提取能量之后排出，气缸包括活塞导向件和密封结构，该活塞导向件和密封结构具有 与之相关联的活塞密封环并且具有耐热材料的壁结构，并且所述活塞具有适于通过所述引导和密封结构来回移动的引导部分和设置在所述被引导的活塞部分的顶部上的耐热材料盖，并且具有 与耐热圆筒壁略微间隔开的圆柱形侧壁。

公开(公告)号：US20090280949A1

公开(公告)日：2009-11-12

申请号：US12437396

申请日：2009-05-07

申请人： Charles B. Lohr

发明人： Charles B. Lohr

IPC分类号： F16H13/12

CPC分类号： F16H61/6649 ,  F16H15/50 ,  F16H15/503 ,  F16H15/52 ,  F16H59/14 ,  F16H59/38 ,  F16H61/6645 ,  F16H63/304

摘要： Mechanisms and methods for clamping force generation are disclosed. In one embodiment, a clamping force generator system includes a permanent magnet bearing coupled to a traction ring and to a torque coupling. The traction ring can be provided with an electromagnetic bearing rotor and the torque coupling can be provided with an electromagnetic bearing stator. In some embodiments, a mechanical load cam, a permanent magnet bearing, and an electromagnetic bearing cooperate to generate a clamping force between the traction rings, the power rollers, and the idler. In other embodiments, a series of permanent magnet bearings and a mechanical bearing configured to produce a clamping force. In one embodiment an electromagnetic bearing is coupled to a control system and produces a specified clamping force that is associated with a torque transmitted in the transmission during operation. In some embodiments, a mechanical load cam produces a clamping force proportional to torque, while a permanent magnet bearing provides a minimum clamping force.

摘要翻译： 公开了夹紧力产生的机理和方法。 在一个实施例中，夹紧力发生器系统包括耦合到牵引环和扭矩耦合的永磁体轴承。 牵引环可以设置有电磁轴承转子，并且扭矩联轴器可以设置有电磁轴承定子。 在一些实施例中，机械负载凸轮，永磁体轴承和电磁轴承协作以在牵引环，动力辊和惰轮之间产生夹紧力。 在其他实施例中，一系列永磁体轴承和构造成产生夹紧力的机械轴承。 在一个实施例中，电磁轴承联接到控制系统并且产生与操作期间在变速器中传递的转矩相关联的指定的夹紧力。 在一些实施例中，机械负载凸轮产生与转矩成比例的夹紧力，而永磁体轴承提供最小夹紧力。

公开(公告)号：US06663532B1

公开(公告)日：2003-12-16

申请号：US09666745

申请日：2000-09-20

申请人： Gordon M. McIndoe ,  Charles B. Lohr ,  John M. Loeffler

发明人： Gordon M. McIndoe ,  Charles B. Lohr ,  John M. Loeffler

IPC分类号： B06K4112

CPC分类号： F16H15/38 ,  F16H37/086 ,  F16H61/664 ,  F16H61/6649 ,  F16H2037/0886 ,  Y10T477/623

摘要： An apparatus and method for operating a continuously variable transmission (CVT), such as a toroidal drive type transmission, is disclosed. The CVT is selectively operated in either a torque control strategy and a ratio control strategy, depending upon the operating conditions of the vehicle. Thus, the CVT is operated in such a manner as to benefit from the advantageous aspects of both the torque and ratio control strategies, while avoiding the disadvantageous aspects of both strategies. The transition from the torque control strategy to the ratio control strategy (and vice versa) can be accomplished by simultaneously calculating the control pressures that would result from operation in both the torque and ratio control strategies, and further assigning a weighted value to each of such calculated control pressures based upon the current operating conditions. The summation of such weighted values provides a composite control signal that facilitates a smooth transition between the two control strategies. The transition from the torque control strategy to the ratio control strategy preferably occurs before a mode shift is effected. Negative feedback is provided in response to ratio changes effected by the control signals to increase stability and to compensate for sensitivity differences at different ratio angles, loading, speeds, and temperatures.

摘要翻译： 公开了一种用于操作诸如环形驱动型变速器的无级变速器（CVT）的装置和方法。 根据车辆的操作条件，CVT可选择性地在转矩控制策略和比率控制策略中操作。 因此，CVT以这样的方式运行，以便从扭矩和比率控制策略的有利方面受益，同时避免两种策略的不利方面。 从扭矩控制策略向比例控制策略的转变（反之亦然）可以通过同时计算由扭矩和比率控制策略中的操作产生的控制压力，并且进一步分配加权值 基于当前操作条件的计算控制压力。 这种加权值的总和提供了一种有助于两个控制策略之间平滑过渡的复合控制信号。 从转矩控制策略到比率控制策略的转换优选地在模式转换之前发生。 响应于由控制信号影响的比率变化提供负反馈以增加稳定性并补偿不同比率角，负载，速度和温度下的灵敏度差异。

公开(公告)号：US08317651B2

公开(公告)日：2012-11-27

申请号：US12437396

申请日：2009-05-07

申请人： Charles B. Lohr

发明人： Charles B. Lohr

IPC分类号： F16H15/38

CPC分类号： F16H61/6649 ,  F16H15/50 ,  F16H15/503 ,  F16H15/52 ,  F16H59/14 ,  F16H59/38 ,  F16H61/6645 ,  F16H63/304

摘要： Mechanisms and methods for clamping force generation are disclosed. In one embodiment, a clamping force generator system includes a permanent magnet bearing coupled to a traction ring and to a torque coupling. The traction ring can be provided with an electromagnetic bearing rotor and the torque coupling can be provided with an electromagnetic bearing stator. In some embodiments, a mechanical load cam, a permanent magnet bearing, and an electromagnetic bearing cooperate to generate a clamping force between the traction rings, the power rollers, and the idler. In other embodiments, a series of permanent magnet bearings and a mechanical bearing configured to produce a clamping force. In one embodiment an electromagnetic bearing is coupled to a control system and produces a specified clamping force that is associated with a torque transmitted in the transmission during operation. In some embodiments, a mechanical load cam produces a clamping force proportional to torque, while a permanent magnet bearing provides a minimum clamping force.

摘要翻译： 公开了夹紧力产生的机理和方法。 在一个实施例中，夹紧力发生器系统包括耦合到牵引环和扭矩耦合的永磁体轴承。 牵引环可以设置有电磁轴承转子，并且扭矩联轴器可以设置有电磁轴承定子。 在一些实施例中，机械负载凸轮，永磁体轴承和电磁轴承协作以在牵引环，动力辊和惰轮之间产生夹紧力。 在其他实施例中，一系列永磁体轴承和构造成产生夹紧力的机械轴承。 在一个实施例中，电磁轴承联接到控制系统并且产生与操作期间在变速器中传递的扭矩相关联的指定的夹紧力。 在一些实施例中，机械负载凸轮产生与转矩成比例的夹紧力，而永磁体轴承提供最小夹紧力。

公开(公告)号：US5417620A

公开(公告)日：1995-05-23

申请号：US202500

申请日：1994-02-28

申请人： Charles B. Lohr ,  William J. Heidemann

发明人： Charles B. Lohr ,  William J. Heidemann

IPC分类号： F16H15/38 ,  F16H61/662 ,  F16H15/08

CPC分类号： F16H61/6649 ,  F16H15/38 ,  F16H2015/383

摘要： A compact structure is provided for an continuously variable transmission, which provides a more direct application of both load and control forces at the pivot trunnion. Load forces are produced from within the pivot trunnion, providing more direct control over load forces and their effect on contact forces between traction rollers and toric discs. Control forces which establish the desired transmission ratio are applied to the pivot trunnion in a manner which substantially eliminates twisting and squirming of the support rollers. High efficiency in operation, and improved assembly is provided with the compact structure disclosed.

摘要翻译： 提供了一种用于无级变速器的紧凑结构，其提供了在枢转耳轴处的负载和控制力的更直接的应用。 负载力从枢轴耳轴内产生，可以更好地控制负载力及其对牵引辊和复曲面盘之间接触力的影响。 建立所需传动比的控制力以基本上消除了支撑辊的扭转和振动的方式施加到枢转耳轴。 提供了高效率的操作和改进的组装，其中公开了紧凑的结构。