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1. 发明授权

US07841457B2 Centrifuge and venting system for a transmission 有权
标题翻译：离心机和排气系统用于传动
公开(公告)号：US07841457B2
公开(公告)日：2010-11-30
申请号：US11770153
申请日：2007-06-28
申请人： Drew A. Crafton , Charles F. Long , Randall S. Conn
发明人： Drew A. Crafton , Charles F. Long , Randall S. Conn
IPC分类号： F01M11/08 , B01D19/00 , F16D25/12
CPC分类号： F16H57/027 , F16H2061/004 , Y10T137/3185
摘要： A transmission having a shaft driven by a prime mover such as an engine or motor is provided. The transmission includes a first stationary element for supporting the shaft for rotation, and a torque transmitting device connectable to the shaft and rotatable about an axis. The torque transmitting device is actuated by a hydraulic fluid. A first passage is connected to the torque transmitting device and is in communication with the hydraulic fluid. The first passage extends radially inward from the torque transmitting device. A vent passage is located within the first stationary element and is in communication with the first passage. Rotation of the torque transmitting device about the axis separates entrained air from the fluid and urges air radially inward through the first passage and into the vent passage, thereby removing air from the hydraulic fluid and circuit.
摘要翻译：提供具有由诸如发动机或马达的原动机驱动的轴的变速器。变速器包括用于支撑轴的旋转的第一固定元件和可连接到轴上并可围绕轴线旋转的扭矩传递装置。扭矩传递装置由液压流体驱动。第一通道连接到扭矩传递装置并且与液压流体连通。第一通道从扭矩传递装置径向向内延伸。排气通道位于第一固定元件内并与第一通道连通。转矩传递装置围绕轴的旋转将夹带的空气与流体分开，并将空气径向向内推动穿过第一通道并进入通气通道，从而从液压流体和回路中除去空气。

2. 发明授权

US06796546B2 Valve assembly 有权
标题翻译：阀组件
公开(公告)号：US06796546B2
公开(公告)日：2004-09-28
申请号：US10187273
申请日：2002-06-26
申请人： Kevin R. Wayman , Drew A. Crafton , Joel E. Mowatt
发明人： Kevin R. Wayman , Drew A. Crafton , Joel E. Mowatt
IPC分类号： F16K326
CPC分类号： F16K11/07
摘要： A valve assembly has a valve body with a bore formed therein. A valve spool is slidably disposed in the valve body. The valve spool has a plurality of valve lands that closely engage the valve bore to form substantially leak-free interfaces. The leading land has a diameter less than the land immediately adjacent thereto in a range of 0.34 mm to 0.17 mm, and a recess formed between the leading land and the first adjacent land. The recess has an inner diameter at least 0.75 mm less than said diameter of said leading land.
摘要翻译：阀组件具有其中形成有孔的阀体。阀芯可滑动地设置在阀体中。阀芯具有多个阀座，其紧密地接合阀孔以形成基本上无泄漏的接口。前缘土地的直径小于其邻近的土地的直径在0.34mm至0.17mm的范围内，并且形成在引导陆地和第一相邻地面之间的凹部。所述凹部具有比所述引导区域的所述直径小至少0.75mm的内径。

3. 发明申请

US20090000670A1 CENTRIFUGE AND VENTING SYSTEM FOR A TRANSMISSION 有权
标题翻译：用于变速器的离心和通风系统
公开(公告)号：US20090000670A1
公开(公告)日：2009-01-01
申请号：US11770153
申请日：2007-06-28
申请人： Drew A. Crafton , Charles F. Long , Randall S. Conn
发明人： Drew A. Crafton , Charles F. Long , Randall S. Conn
IPC分类号： F16K24/04
CPC分类号： F16H57/027 , F16H2061/004 , Y10T137/3185
摘要： A transmission having a shaft driven by a prime mover such as an engine or motor is provided. The transmission includes a first stationary element for supporting the shaft for rotation, and a torque transmitting device connectable to the shaft and rotatable about an axis. The torque transmitting device is actuated by a hydraulic fluid. A first passage is connected to the torque transmitting device and is in communication with the hydraulic fluid. The first passage extends radially inward from the torque transmitting device. A vent passage is located within the first stationary element and is in communication with the first passage. Rotation of the torque transmitting device about the axis separates entrained air from the fluid and urges air radially inward through the first passage and into the vent passage, thereby removing air from the hydraulic fluid and circuit.
摘要翻译：提供具有由诸如发动机或马达的原动机驱动的轴的变速器。变速器包括用于支撑轴的旋转的第一固定元件和可连接到轴上并可围绕轴线旋转的扭矩传递装置。扭矩传递装置由液压流体驱动。第一通道连接到扭矩传递装置并且与液压流体连通。第一通道从扭矩传递装置径向向内延伸。排气通道位于第一固定元件内并与第一通道连通。转矩传递装置围绕轴的旋转将夹带的空气与流体分开，并将空气径向向内推动穿过第一通道并进入通气通道，从而从液压流体和回路中除去空气。

4. 发明授权

US06652253B1 Hydraulic pump having a noise reduction recess 有权
标题翻译：具有降噪凹槽的液压泵
公开(公告)号：US06652253B1
公开(公告)日：2003-11-25
申请号：US10195841
申请日：2002-07-15
申请人： Drew A. Crafton , Gregory W. Kempf
发明人： Drew A. Crafton , Gregory W. Kempf
IPC分类号： F04C210
CPC分类号： F04C2/102 , F04C2/086 , F04C2240/801
摘要： An internal/external gear pump includes a wear plate disposed between the gear members and at least one sidewall of the pump. The wear plate has a recess formed therein having a substantially constant depth and width. The recess extends into the full mesh point between the gear members of the pump to provide a flow path from the full mesh point to an inlet side or suction port of the pump.
摘要翻译：内部/外部齿轮泵包括设置在齿轮构件和泵的至少一个侧壁之间的耐磨板。耐磨板具有形成在其中的具有基本恒定的深度和宽度的凹部。凹槽延伸到泵的齿轮构件之间的整个网格点，以提供从全网状点到泵的入口侧或吸入口的流动路径。

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