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51. 发明授权

US06533693B2 Transfer case for hybrid vehicle 有权
公开(公告)号：US06533693B2
公开(公告)日：2003-03-18
申请号：US10175622
申请日：2002-06-20
申请人： Thomas C. Bowen , Sankar K. Mohan
发明人： Thomas C. Bowen , Sankar K. Mohan
IPC分类号： F16H372
CPC分类号： B60K6/365 , B60K6/40 , B60K6/48 , B60K6/52 , B60K17/346 , B60K17/356 , B60K23/08 , F16H2200/2007 , Y02T10/6221 , Y02T10/6265 , Y10S903/91 , Y10S903/916 , Y10S903/951
摘要： A hybrid drive system for a four-wheel drive system arranged to supply motive power to a transfer case from an internal combustion engine and/or an electric motor/generator. The transfer case is comprised of a planetary gearset having a first input driven by the motor/generator, a second input driven by the engine, and an output directing drive torque to the front and rear drivelines. The output of the planetary gearset drives a rear output shaft connected to the rear driveline and further drives a front output shaft connected to the front driveline. The transfer case further includes a second planetary gearset having an input driven by the motor/generator and an output driving the first input of the first planetary gearset. This hybrid drive arrangement permits use of a modified transfer case in place of a conventional transfer case in a traditional four-wheel drive driveline.

52. 发明授权

US06533095B2 Hydraulic coupling with multi-function control device 失效
公开(公告)号：US06533095B2
公开(公告)日：2003-03-18
申请号：US10082763
申请日：2002-02-25
申请人： Sankar K. Mohan , Timothy M. Burns , Fred C. Porter
发明人： Sankar K. Mohan , Timothy M. Burns , Fred C. Porter
IPC分类号： B60K17348
CPC分类号： F16D43/284 , B60K17/35 , B60K23/08 , F16D25/0638 , F16D25/14 , F16D48/02 , F16D48/04 , F16D2048/0248 , F16D2500/1024 , F16D2500/10412 , F16D2500/30406 , F16D2500/30415 , F16D2500/30426 , F16D2500/3056 , F16D2500/70217 , F16D2500/70404 , F16D2500/70406
摘要： A hydraulic coupling for use in an all wheel drive system, utilized in association with a front wheel drive transaxle, including a multi-plate clutch assembly operably connecting two relatively rotatable members and an actuator assembly for actuating the clutch assembly in response to speed differentiation between the two rotary members. The actuator assembly includes a hydraulic pump, a piston disposed in a piston chamber, and a fluid distribution system including a first flow path for supplying hydraulic fluid from a sump to the hydraulic pump and a second flow path for supplying hydraulic fluid from the hydraulic pump to the piston chamber. Hydraulic pressure in the piston chamber controls the magnitude of the clutch engagement force exerted by the piston on the clutch assembly. A control valve assembly is located in the piston chamber, in close proximity to the clutch pack where a majority of heat is generated.

53. 发明授权

US06484857B2 Torque transfer clutch with ball screw actuator 失效
标题翻译：带滚珠丝杠执行器的转矩离合器
公开(公告)号：US06484857B2
公开(公告)日：2002-11-26
申请号：US09775089
申请日：2001-02-01
申请人： Carl H. Vonnegut , Mozaffar Khazaee , Sankar K. Mohan , Eric A. Bansbach , Daniel J. Miller
发明人： Carl H. Vonnegut , Mozaffar Khazaee , Sankar K. Mohan , Eric A. Bansbach , Daniel J. Miller
IPC分类号： F16H3706
CPC分类号： B60K17/3505 , Y10T74/18664
摘要： The present invention is directed to a power transfer system for a four-wheel drive vehicle equipped with a torque transfer coupling which includes a clutch pack and a ball-screw actuator. The ball-screw actuator functions to axially translates an apply plate to operatively engage the clutch pack and vary the frictional engagement. This arrangement yields numerous operational advantages over the prior art including, but not limited to, establishing a direct drive between the motor output shaft and the apply plate, concentric mounting of the actuator elements with the motor output shaft, and a simplified mechanical arrangement that reduces the number of frictional elements increasing operational efficiency and decreasing motor requirements.
摘要翻译：本发明涉及一种配备有转矩传递联轴器的四轮驱动车辆的动力传递系统，该扭矩传递联轴器包括离合器组件和滚珠丝杠致动器。滚珠丝杠致动器用于轴向平移施加板以可操作地接合离合器组件并改变摩擦接合。这种布置产生了与现有技术相比的许多操作优点，包括但不限于在马达输出轴和施加板之间建立直接驱动，致动器元件与马达输出轴的同心安装，以及简化的机械布置，其减小摩擦元件的数量增加了运行效率并降低了电机的要求。

54. 发明授权

US6145644A Multi-function control valve for hydraulic coupling 失效
标题翻译：液压联轴器多功能控制阀
公开(公告)号：US6145644A
公开(公告)日：2000-11-14
申请号：US359833
申请日：1999-07-23
申请人： Sankar K. Mohan , Timothy M. Burns
发明人： Sankar K. Mohan , Timothy M. Burns
IPC分类号： B60K17/35 , B60K23/08 , F16D25/0638 , F16D43/284 , F16D48/02 , F16D48/04 , B60K17/348
CPC分类号： F16D48/02 , F16D25/0638 , F16D25/14 , F16D43/284 , F16D48/04 , B60K17/35 , B60K23/08 , F16D2048/0221 , F16D2500/5102 , F16D2500/5106
摘要： A hydraulic coupling including a multi-plate clutch assembly operably connecting two relatively rotatable members and an actuator assembly for actuating the clutch assembly in response to speed differentiation between the two rotary members. The actuator assembly includes a hydraulic pump, a piston disposed in a piston chamber, and a fluid distribution system including a first flow path for supplying hydraulic fluid from a sump to the hydraulic pump and a second flow path for supplying hydraulic fluid from the hydraulic pump to the piston chamber. Hydraulic pressure in the piston chamber controls the magnitude of the clutch engagement force exerted by the piston on the clutch assembly. The fluid distribution system further includes a third flow path between the piston chamber and a clutch chamber. A control valve assembly is located in the third flow path and provides a flow control function for regulating the fluid pressure in the piston chamber and supplying fluid to the clutch chamber for cooling the clutch assembly. The control valve assembly also provides a pressure relief function for limiting the fluid pressure in the piston chamber to a predetermined maximum value, and a thermal unload feature for venting the piston chamber when the fluid temperature exceeds a predetermined maximum value.
摘要翻译：一种液压联轴器，包括可操作地连接两个相对旋转的构件的多板式离合器组件和用于响应于两个旋转构件之间的速度差异来致动离合器组件的致动器组件。致动器组件包括液压泵，设置在活塞室中的活塞和流体分配系统，该流体分配系统包括用于从油底壳向液压泵供应液压流体的第一流路和用于从液压泵供应液压流体的第二流路到活塞室。活塞室中的液压控制由活塞施加在离合器组件上的离合器接合力的大小。流体分配系统还包括在活塞室和离合器室之间的第三流动路径。控制阀组件位于第三流动路径中并且提供流量控制功能，用于调节活塞室中的流体压力并向离合器腔室供应流体以冷却离合器组件。控制阀组件还提供了用于将活塞室中的流体压力限制到预定最大值的压力释放功能，以及当流体温度超过预定最大值时使活塞室排气的热卸载特征。

55. 发明授权

US6041903A Hydraulic coupling for vehicular power transfer systems 有权
标题翻译：用于车辆电力传输系统的液压联轴器
公开(公告)号：US6041903A
公开(公告)日：2000-03-28
申请号：US189884
申请日：1998-11-11
申请人： Timothy M. Burns , Sankar K. Mohan
发明人： Timothy M. Burns , Sankar K. Mohan
IPC分类号： F16D43/284 , F16D25/02
CPC分类号： F16D43/284
摘要： A hydraulic coupling includes a clutch assembly operatively connecting two rotary members and an actuator assembly for actuating the clutch assembly in response to speed differentiation between the two rotary members. The clutch assembly includes a multi-plate clutch pack alternately connected between the two rotary members within a clutch chamber. The actuator assembly includes a hydraulic pump, a piston disposed in a piston chamber, and a fluid distribution system having a first flow path between a supply chamber and the hydraulic pump, a second flow path between the hydraulic pump and the piston chamber, and a third flow path between the hydraulic pump and the clutch chamber. The fluid delivered to the piston chamber controls engagement of the piston with the clutch pack for controlling actuation of the clutch assembly. Additionally, the fluid delivered to the clutch chamber is used to cool and lubricate the clutch pack.
摘要翻译：液压联接器包括可操作地连接两个旋转构件的离合器组件和用于响应于两个旋转构件之间的速度差异来致动离合器组件的致动器组件。离合器组件包括交替地连接在离合器室内的两个旋转构件之间的多板式离合器组件。致动器组件包括液压泵，设置在活塞室中的活塞以及具有在供给室和液压泵之间的第一流动路径的流体分配系统，液压泵和活塞室之间的第二流动路径，以及液压泵和离合器室之间的第三流动路径。输送到活塞室的流体控制活塞与离合器组件的接合，以控制离合器组件的致动。此外，输送到离合器室的流体用于冷却和润滑离合器组件。

56. 发明授权

US5346044A Viscous coupling apparatus with coined plates and method of making the same 失效
标题翻译：带有压板的粘性连接装置及其制造方法
公开(公告)号：US5346044A
公开(公告)日：1994-09-13
申请号：US59636
申请日：1993-05-10
申请人： Sankar K. Mohan , Carl F. Stephens
发明人： Sankar K. Mohan , Carl F. Stephens
IPC分类号： F16D35/00 , B21D22/00
CPC分类号： F16D35/005
摘要： A viscous coupling apparatus having enhanced torque progression characteristics. The viscous coupling apparatus includes two sets of viscous coupling plates which are interleaved and mounted with rotatable members for relative rotation therebetween. Each plate is a generally circular ring of thin plate material and has one or more openings formed therein. The openings include coined edge surfaces that form an inclined surface and an arcuate wiping surface. The coined edges facilitate the wiping and removal of viscous fluid from the surface of an adjacent coupling plate when relative rotation and frictional contact occurs between adjacent plates without generating excessive wear on one of the mating plates. The removal of the viscous fluid promotes enhanced frictional contact between the facing adjacent plate surfaces and results in an increased torque transmission characteristic.
摘要翻译：具有增强的扭矩进行特性的粘性联接装置。粘性联接装置包括两组粘性联接板，它们交错并安装有可旋转的构件，用于相互旋转。每个板是薄板材料的大致圆形环，并且在其中形成有一个或多个开口。这些开口包括形成倾斜表面的弧形边缘表面和弧形擦拭表面。当在相邻的板之间发生相对旋转和摩擦接触而不会在其中一个配合板上产生过度磨损时，所形成的边缘便于从相邻联接板的表面擦拭和去除粘性流体。去除粘性流体促进面对的相邻板表面之间增强的摩擦接触并且导致增加的扭矩传递特性。

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