公开(公告)号：US07901318B2

公开(公告)日：2011-03-08

申请号：US12237726

申请日：2008-09-25

Applicant: James P Downs ,  Heather A Moore ,  Joseph S Balenda, II

Inventor： James P Downs ,  Heather A Moore ,  Joseph S Balenda, II

IPC: F16H48/06

CPC classification number: F16H48/08 ,  F16H2048/085 ,  Y10T29/49945 ,  Y10T29/49959

Abstract: A differential having four pinions supported for rotation on cross pins within a differential case. The differential employs a retainer system for securing the cross pins relative to the differential case. The retainer system can include a collar and a plurality of pin members.

Abstract translation: 具有四个小齿轮的差速器，其支撑在差速器壳体内的十字销上。 差速器采用用于固定十字销相对于差速器壳体的保持器系统。 保持器系统可以包括轴环和多个销构件。

公开(公告)号：US20100144480A1

公开(公告)日：2010-06-10

申请号：US12315961

申请日：2008-12-08

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

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

IPC: F16H57/04

CPC classification number: F16H57/0457 ,  F16H48/08 ,  F16H57/0423 ,  F16H57/045 ,  F16H57/0483

Abstract: 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.

Abstract translation: 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

Applicant: James P. Downs ,  Gregory A. Marsh

Inventor： James P. Downs ,  Gregory A. Marsh

IPC: B60K17/35

CPC classification number: B60K17/348 ,  B60K17/3515 ,  B60K23/08

Abstract: 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.

Abstract translation: 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

Applicant: Edward Pietraszkiewicz ,  Irwin D. Singer ,  James P. Downs

Inventor： Edward Pietraszkiewicz ,  Irwin D. Singer ,  James P. Downs

IPC: B28B7/34

CPC classification number: F01D5/187 ,  B22C7/06 ,  B22C9/10 ,  F05D2230/21 ,  F05D2230/50

Abstract: 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

Applicant: Gregory A. Marsh ,  Zugang Huang ,  James P. Downs

Inventor： Gregory A. Marsh ,  Zugang Huang ,  James P. Downs

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

CPC classification number: F16D41/22 ,  F16D13/04

Abstract: 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.

Abstract translation: 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

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

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

IPC: F01D518

CPC classification number: F01D5/18 ,  F01D5/187 ,  F05D2230/14 ,  F05D2250/15 ,  F05D2250/70 ,  F05D2260/2214

Abstract: 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.

Abstract translation: 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

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

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

IPC: F01D5/18 ,  F01D9/06

CPC classification number: F01D5/186 ,  Y10T29/49341

Abstract: 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.

Abstract translation: 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

Applicant: James P. Downs ,  Edward J. Eshelman

Inventor： James P. Downs ,  Edward J. Eshelman

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

CPC classification number: F16H48/08 ,  F16H2048/382 ,  F16H48/40 ,  Y10T74/2188

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20220196129A1

公开(公告)日：2022-06-23

申请号：US17582246

申请日：2022-01-24

Applicant: James P. Downs ,  Paul J. Valente

Inventor： James P. Downs ,  Paul J. Valente

IPC: F16H48/08 ,  F16H48/40 ,  B60B35/16 ,  B60K17/16 ,  F16C19/54 ,  F16C33/58 ,  F16H48/22 ,  F16H48/38 ,  F16H48/42 ,  F16H57/021 ,  F16H57/031 ,  F16H57/037

Abstract: An axle assembly with a housing, an annular gear, a bearing, a differential, and a pair of output shafts. The housing has an annular hub. The annular gear is received in the housing. The bearing, which is a four-point angular contact bearing, supports the gear for rotation about an axis relative to the housing and has an inner bearing race, which is mounted on the annular hub, and an outer bearing race that is fixedly coupled to the annular gear. The differential is received in the housing and includes an input member, which is coupled to the annular gear for rotation therewith, and a pair of output members that are rotatable relative to the input member about the output axis. Each of the output shafts is coupled to an associated one of the output members for rotation therewith. One of the output shafts extends through the annular hub.

公开(公告)号：US20180126783A1

公开(公告)日：2018-05-10

申请号：US15862112

申请日：2018-01-04

Applicant: Paul J. Valente ,  James P. Downs

Inventor： Paul J. Valente ,  James P. Downs

IPC: B60B35/12 ,  B60B35/16 ,  B60B35/18 ,  B23K20/12 ,  F16H48/08 ,  F16H57/037 ,  F16H48/42

CPC classification number: B60B35/125 ,  B23K20/12 ,  B60B35/16 ,  B60B35/18 ,  B60B2310/302 ,  B60B2360/102 ,  B60B2380/70 ,  B60B2380/90 ,  F16H48/08 ,  F16H57/037 ,  F16H2048/082 ,  F16H2048/087 ,  F16H2048/426

Abstract: An axle assembly with a housing, a shaft received in the housing, a shaft bearing supporting the shaft for rotation relative to the housing about a shaft axis, a differential assembly, an annular band and a secondary retainer. The shaft bearing has an inner race, which is received on and directly engaged to the shaft, and an outer race that is received on and directly engaged to the axle housing. The differential assembly has an output member that is non-rotatably coupled to the shaft. The annular band is fixedly coupled to the shaft at a location along the axle shaft axis between the inner race and the output member. The secondary retainer is disposed along the axle shaft axis between the annular band and the output member and is configured to limit movement of the annular band along the axle shaft axis in a direction toward the output member.