公开(公告)号：US06280140B1

公开(公告)日：2001-08-28

申请号：US09442922

申请日：1999-11-18

申请人： Friedrich O. Soechting ,  William A. Kvasnak ,  Thomas A. Auxier ,  James P. Downs ,  William H. Calhoun ,  Douglas A. Hayes

发明人： Friedrich O. Soechting ,  William A. Kvasnak ,  Thomas A. Auxier ,  James P. Downs ,  William H. Calhoun ,  Douglas A. Hayes

IPC分类号： F01D518

CPC分类号： F23R3/002 ,  F01D5/184 ,  F01D5/186 ,  F05D2250/70 ,  F05D2260/221 ,  F05D2260/2214

摘要： An apparatus and method for cooling a wall for use in a gas turbine engine is provided that includes a cooling air passage having a plurality of segments connected in series by one or more chambers, an inlet aperture, and an exit aperture. The inlet aperture connects the cooling air passage to one side of the wall. The exit aperture connects the cooling air passage to the opposite side of the wall. Cooling air on the inlet aperture side of the wall enters the cooling air passage through the inlet aperture and exits through the exit aperture.

摘要翻译： 提供一种用于冷却用于燃气涡轮发动机的壁的装置和方法，其包括具有通过一个或多个室串联连接的多个段的冷却空气通道，入口孔和出口孔。 入口孔将冷却空气通道连接到墙的一侧。 出口孔将冷却空气通道连接到壁的相对侧。 壁的入口孔侧的冷却空气通过入口孔进入冷却空气通道，并通过出口孔离开。

公开(公告)号：US20140144259A1

公开(公告)日：2014-05-29

申请号：US14009120

申请日：2012-04-06

申请人： James P. Downs ,  John C. Hibbler

发明人： James P. Downs ,  John C. Hibbler

IPC分类号： F16H25/08

CPC分类号： F16H25/08 ,  B60K23/08 ,  B60K2023/0858 ,  B60W2510/0225 ,  B60Y2400/414 ,  F16D48/064 ,  F16D2500/1025 ,  F16D2500/10431 ,  F16D2500/10462 ,  F16D2500/3026 ,  F16D2500/3028 ,  Y10T74/18296

摘要： An actuator that causes a mode clutch to shift between an engaged position and a disengaged position is provided. The actuator comprises a motor having an output. A shift cam is caused to rotate based on the output of the motor. The shift cam has a cam profile surface. A cam follower rides along the cam profile surface upon rotation of the shift cam. Movement of the cam follower causes movement of a mode fork resulting in the mode clutch shifting between the engaged and disengaged positions. A sensor outputs a voltage to a controller based on a physical location of the cam follower. The controller activates the motor based on the voltage.

摘要翻译： 提供使模式离合器在接合位置和脱离位置之间移动的致动器。 致动器包括具有输出的马达。 基于马达的输出使变速凸轮旋转。 换档凸轮具有凸轮轮廓表面。 当转换凸轮旋转时，凸轮从动件沿着凸轮轮廓表面行驶。 凸轮从动件的移动引起模式叉的移动，导致模式离合器在接合位置和分离位置之间移动。 传感器基于凸轮从动件的物理位置向控制器输出电压。 控制器根据电压启动电机。

公开(公告)号：US08096766B1

公开(公告)日：2012-01-17

申请号：US12351624

申请日：2009-01-09

申请人： James P. Downs

发明人： James P. Downs

IPC分类号： F01D5/08 ,  F01D5/20

CPC分类号： F01D5/186 ,  F01D5/147 ,  F01D5/187 ,  F05D2260/201 ,  F05D2260/202 ,  F05D2260/221 ,  Y02T50/67 ,  Y02T50/676

摘要： An air cooled turbine airfoil, such as a rotor blade, with a sequential impingement cooling circuit that provides a high level of cooling with a low amount of cooling air. The airfoil is formed of a spar and shell construction in which the spar is formed from a series of alternating layers that form the cooling circuit with the shell forming the gap for the impingement cooling channels. Two different layers form the impingement cooling channels with a third layer being a separation layer. The impingement cooling circuit includes a first impingement circuit to cooling a forward half of the pressure side wall, a second impingement cooling circuit to cool the aft half of the pressure side wall, and a third impingement cooling circuit to cool the entire suction side wall. The spent cooling air is collected and channeled through a series of exit holes in the trailing edge to discharge the cooling air form the airfoil.

摘要翻译： 具有顺序冲击冷却回路的风冷涡轮机翼片，例如转子叶片，其提供具有少量冷却空气的高水平冷却。 翼型件由翼梁和壳体结构形成，其中翼梁由形成冷却回路的一系列交替层形成，壳体形成用于冲击冷却通道的间隙。 两个不同的层形成冲击冷却通道，第三层是分离层。 冲击冷却回路包括用于冷却压力侧壁的前半部分的第一冲击回路，用于冷却压力侧壁的后半部分的第二冲击冷却回路和用于冷却整个吸入侧壁的第三冲击冷却回路。 废弃的冷却空气被收集并通过后缘中的一系列出口孔引导，以从翼型排出冷却空气。

公开(公告)号：US20100144480A1

公开(公告)日：2010-06-10

申请号：US12315961

申请日：2008-12-08

申请人： James P. Downs ,  Herbert L. Adams, III ,  W. Gordon Hunt ,  Gregory E. Woodside

发明人： James P. Downs ,  Herbert L. Adams, III ,  W. Gordon Hunt ,  Gregory E. Woodside

IPC分类号： F16H57/04

CPC分类号： F16H57/0457 ,  F16H48/08 ,  F16H57/0423 ,  F16H57/045 ,  F16H57/0483

摘要： An axle assembly having an axle assembly with first and second sumps for holding a lubricant. A rotating ring gear associated with a differential can rotate through the lubricant in the first sump to cause a portion of the lubricant to cling to the ring gear. A portion of the lubricant that has clung to the ring gear can be removed from the ring gear and transferred to the second sump. The lubricant in the second sump can be drained to lubricate teeth of a pinion that is in meshing engagement with the ring gear and/or to lubricate bearings that support the pinion. A related method is also provided.

摘要翻译： 一种车轴组件，其具有带有用于保持润滑剂的第一和第二座的轴组件。 与差速器相关联的旋转环形齿轮可以旋转穿过第一贮槽中的润滑剂，以使润滑剂的一部分附着在齿圈上。 已经粘附到齿圈的润滑剂的一部分可以从齿圈上移除并转移到第二贮槽。 可以排出第二贮槽中的润滑剂以润滑与齿圈啮合的小齿轮和/或润滑支撑小齿轮的轴承的齿。 还提供了相关的方法。

公开(公告)号：US20100038164A1

公开(公告)日：2010-02-18

申请号：US12191699

申请日：2008-08-14

申请人： James P. Downs ,  Gregory A. Marsh

发明人： James P. Downs ,  Gregory A. Marsh

IPC分类号： B60K17/35

CPC分类号： B60K17/348 ,  B60K17/3515 ,  B60K23/08

摘要： A vehicle with primary and secondary drivelines and a power take-off unit (PTU). The primary driveline has a first differential that is configured to distribute power to a first set of wheels. The PTU has a PTU input, a PTU output and a synchronizer for selectively de-coupling the PTU output from the PTU input. The secondary driveline is configured to distribute power to a second set of wheels and has a propshaft, a second differential, a pair of half-shafts and at least one torque transfer device (TTD). The propshaft transmits rotary power between the PTU output and an input of the second differential. The half-shafts are rotatably coupled to an output of the second differential and are configured to transmit rotary power to the second set of wheels. The at least one TTD is configured to selectively inhibit torque transmission through the second differential to the second set of wheels.

摘要翻译： 具有主和副传动系统和动力输出单元（PTU）的车辆。 主传动系具有被配置成将动力分配给第一组轮的第一差速器。 PTU具有PTU输入，PTU输出和同步器，用于选择性地分离PTU输入的PTU输出。 第二传动系被配置成将动力分配给第二组轮，并具有传动轴，第二差速器，一对半轴和至少一个扭矩传递装置（TTD）。 传动轴在PTU输出和第二差速器的输入之间传输旋转动力。 半轴可旋转地联接到第二差速器的输出端并且被配置为将旋转动力传递到第二组轮。 至少一个TTD被配置为选择性地禁止通过第二差速器到第二组车轮的扭矩传递。

公开(公告)号：US20090258102A1

公开(公告)日：2009-10-15

申请号：US12490721

申请日：2009-06-24

申请人： Edward Pietraszkiewicz ,  Irwin D. Singer ,  James P. Downs

发明人： Edward Pietraszkiewicz ,  Irwin D. Singer ,  James P. Downs

IPC分类号： B28B7/34

CPC分类号： F01D5/187 ,  B22C7/06 ,  B22C9/10 ,  F05D2230/21 ,  F05D2230/50

摘要： A die for forming a lost wax ceramic core allows the formation of non-parallel separating spaces between adjacent portions of the core. The core will eventually form cooling channels in an airfoil. The die for forming the core includes a plurality of moving parts having rib extensions. At least some rib extensions are non-parallel to form the non-parallel spaces. The die includes two main die halves that come together to form several of the spaces. Inserts move with those die components and come together to form other spaces. At least one of the inserts contacts surfaces on one of the die halves, such that the non-parallel spaces are formed.

公开(公告)号：US20090032354A1

公开(公告)日：2009-02-05

申请号：US11832420

申请日：2007-08-01

申请人： Gregory A. Marsh ,  Zugang Huang ,  James P. Downs

发明人： Gregory A. Marsh ,  Zugang Huang ,  James P. Downs

IPC分类号： F16D43/04 ,  F16D11/14 ,  F16D21/00 ,  F16D23/00

CPC分类号： F16D41/22 ,  F16D13/04

摘要： An overrunning torque transmitting device that employs a plurality of cone clutches and an overload mechanism for limiting the torque transmitted through the device in a predetermined rotational direction. A method for transmitting torque is also provided.

摘要翻译： 一种超越扭矩传递装置，其采用多个锥形离合器和过载机构，用于限制在预定旋转方向上传递通过该装置的扭矩。 还提供了一种传递扭矩的方法。

公开(公告)号：US06247896B1

公开(公告)日：2001-06-19

申请号：US09338376

申请日：1999-06-23

申请人： Thomas A. Auxier ,  James P. Downs ,  William S. Kvasnak ,  Friedrich O. Soechting ,  William H. Calhoun ,  Douglas A. Hayes

发明人： Thomas A. Auxier ,  James P. Downs ,  William S. Kvasnak ,  Friedrich O. Soechting ,  William H. Calhoun ,  Douglas A. Hayes

IPC分类号： F01D518

CPC分类号： F01D5/18 ,  F01D5/187 ,  F05D2230/14 ,  F05D2250/15 ,  F05D2250/70 ,  F05D2260/2214

摘要： A method and apparatus for cooling a wall within a gas turbine engine is provided which comprises the steps of: (1) providing a wall having an internal surface and an external surface; (2) providing a cooling microcircuit within the wall that has a passage for cooling air that extends between the internal surface and the external surface; and (3) increasing heat transfer from the wall to a fluid flow within the passage by increasing the average heat transfer coefficient per unit flow within the microcircuit. According to one aspect, the present invention method and apparatus can be tuned to substantially match the thermal profile of the wall at hand.

摘要翻译： 提供了一种用于冷却燃气涡轮发动机内的壁的方法和装置，其包括以下步骤：（1）提供具有内表面和外表面的壁; （2）在所述壁内提供具有在所述内表面和所述外表面之间延伸的用于冷却空气的通道的所述壁内的冷却微电路; 和（3）通过增加微电路内的每单位流动的平均热传递系数来增加从通道内的壁到流体流的传热。 根据一个方面，本发明的方法和装置可以被调整以使手上的壁的热分布基本匹配。

公开(公告)号：US6050777A

公开(公告)日：2000-04-18

申请号：US992322

申请日：1997-12-17

申请人： Martin G. Tabbita ,  James P. Downs ,  Friedrich O. Soechting ,  Thomas A. Auxier

发明人： Martin G. Tabbita ,  James P. Downs ,  Friedrich O. Soechting ,  Thomas A. Auxier

IPC分类号： F01D5/18 ,  F01D9/06

CPC分类号： F01D5/186 ,  Y10T29/49341

摘要： A hollow airfoil is provided which includes a body, a trench, and a plurality of cooling apertures disposed within the trench. The body extends chordwise between a leading edge and a trailing edge, and spanwise between an outer radial surface and an inner radial surface, and includes an external wall surrounding a cavity. The trench is disposed in the external wall along the leading edge, extends in a spanwise direction, and is aligned with a stagnation line extending along the leading edge.

摘要翻译： 提供了一种空心翼片，其包括主体，沟槽和设置在沟槽内的多个冷却孔。 主体在前缘和后缘之间沿翼弦方向延伸，并且在外径向表面和内径向表面之间展开，并且包括围绕腔的外壁。 沟槽沿着前缘设置在外壁中，沿翼展方向延伸，并且与沿着前缘延伸的停滞线对齐。

公开(公告)号：US5951431A

公开(公告)日：1999-09-14

申请号：US15018

申请日：1998-01-29

申请人： James P. Downs ,  Edward J. Eshelman

发明人： James P. Downs ,  Edward J. Eshelman

IPC分类号： F16H48/08 ,  F16H48/38 ,  F16H48/40 ,  F16H57/02

CPC分类号： F16H48/08 ,  F16H2048/382 ,  F16H48/40 ,  Y10T74/2188

摘要： A differential case is provided including at least one assembly window formed therein for providing access to a chamber interior of the differential case. The assembly window in the differential case is defined by a pair of opposed circular edge portions of the differential case interconnected by a pair of opposed elongated edge portions of the differential case. The pair of opposed elongated edge portions have a dimension therebetween slightly larger than an outside diameter of a pair of side gears so as to allow angulated entry of the side gears into the chamber and subsequent alignment relative to a longitudinal axis. The pair of opposed circular edge portions include a radius slightly larger than a radius of a pair of pinion gears to allow entry of the pinion gears into the chamber and subsequent alignment relative to another longitudinal axis. As such, the assembly window permits easy assembly of the gear components into the differential case while improving the structural and functional characteristics thereof.

摘要翻译： 提供了一种差速器壳体，其包括形成在其中的至少一个组装窗口，用于提供对差速器壳体的腔室内部的通路。 差速器壳体中的组装窗口由差速器壳体的一对相对的圆形边缘部分限定，由差速器壳体的一对相对的细长边缘部分互连。 一对相对的细长边缘部分之间的尺寸略大于一对侧齿轮的外径，从而允许侧齿轮成角度地进入腔室并随后相对于纵向轴线对准。 一对相对的圆形边缘部分包括稍大于一对小齿轮的半径的半径，以允许小齿轮进入腔室并且随后相对于另一个纵向轴线对齐。 因此，组装窗口允许齿轮部件容易地组装到差速器壳体中，同时改进其结构和功能特性。