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1. 发明申请

US20190219139A1 FIXED BLOCK SHAFT FOR INTEGRATED DRIVE GENERATOR 审中-公开
公开(公告)号：US20190219139A1
公开(公告)日：2019-07-18
申请号：US15871449
申请日：2018-01-15
申请人： HAMILTON SUNDSTRAND CORPORATION
发明人： Derek R. Hochstetler , Ted A. Martin , Duane C. Johnson , Glenn C. Lemmers, JR.
IPC分类号： F16H39/14 , F16C3/02 , F16H57/00 , F16H47/04
CPC分类号： F16H39/14 , F02C7/32 , F05D2220/76 , F16C19/26 , F16C33/581 , F16C2326/43 , F16H55/17
摘要： A fixed block shaft has a body extending from a first end to a second end. A disc extends radially outwardly of a shaft portion. The shaft portion extends to the second end. The disc extends radially outwardly from the shaft adjacent the first end with a boss extending to the first end from the disc. The boss defines an inner peripheral surface and the inner peripheral surface has a bearing race. The bearing race extends from the first end to a bearing race end. An inner diameter of the bearing race defines a first distance. An inner diameter of the bearing race is defined as a first distance and the bearing race extends along a central axis for a second distance. A ratio of the first distance to the second distance is between 4.30 and 4.50. An integrated drive generator and a method are also disclosed.

2. 发明申请

US20180223992A1 CONTROL MECHANISM FOR STEPLESS TRANSMISSION 审中-公开
公开(公告)号：US20180223992A1
公开(公告)日：2018-08-09
申请号：US15920167
申请日：2018-03-13
申请人： Kanzaki Kokyukoki Mfg. Co., Ltd.
发明人： Jun MATSUURA , Nobuhisa KAMIKAWA , Syouto YOSHIMOTO , Koji IWAKI , Masaru IIDA , Toshifumi YASUDA
IPC分类号： F16H61/433 , F16H39/14 , F15B15/14 , F15B15/06
CPC分类号： F16H61/433 , F03C1/0636 , F04B1/20 , F04B1/324 , F04B23/106 , F04B49/00 , F04B49/08 , F04B49/22 , F15B15/06 , F15B15/14 , F16H39/14 , F16K11/0716 , F16K31/0613
摘要： A control mechanism for a stepless transmission is a control mechanism connected to a manipulation lever in a stepless transmission and disposed outside a housing of the transmission. The control mechanism includes: a) a piston rod connected to the manipulation lever; b) a piston provided on the piston rod coaxially with the piston rod; c) a cylinder case provided with a cylinder adapted to house the piston rod and the piston such that the piston rod and the piston are displaceable in an axial direction, the piston and the cylinder forming a first fluid chamber to be supplied with a hydraulic fluid for withdrawing the piston rod from the cylinder and a second fluid chamber to be supplied with the hydraulic fluid for introducing the piston rod into the cylinder; d) a spring adapted to bias the manipulation lever in a neutral direction coaxially with the piston rod; e) a proportional pressure control valve adapted to selectively supply the hydraulic fluid to the first fluid chamber or the second fluid chamber, the proportional pressure control valves being mounted to the cylinder case; and f) a pivot shaft adapted to support the cylinder case oscillatably with respect to the housing.

3. 发明申请

US20180149197A1 THRUST BEARING FOR HYDRAULIC CONTINUOUSLY VARIABLE TRANSMISSION 审中-公开
公开(公告)号：US20180149197A1
公开(公告)日：2018-05-31
申请号：US15575517
申请日：2016-04-26
申请人： NTN CORPORATION
发明人： Hiroki TANIMURA
IPC分类号： F16C33/44 , F16C19/10
CPC分类号： F16C33/44 , F16C19/10 , F16C33/3856 , F16C2208/04 , F16C2208/60 , F16C2310/00 , F16C2326/01 , F16H39/14
摘要： A thrust bearing for a hydro-static transmission according to the present invention is incorporated in a hydro-static transmission and includes: an inner ring which makes contact with pistons of piston chambers of a variable capacity pump; an outer ring fixed to a swash plate; a plurality of balls held between the inner ring and the outer ring via a retainer, where the retainer is made of a synthetic resin provided by polyamide 66, and contains glass fiver at a rate not greater than 10 mass percent. With this arrangement, the present invention prevents breakage of the retainer caused by delayed or speeded balls resulting from an imbalanced load when the pump swash plate varies its slant angle, thereby provides a long-life thrust bearing for a hydro-static transmission.

4. 发明授权

US09695844B1 Hydraulic pump assembly 有权
公开(公告)号：US09695844B1
公开(公告)日：2017-07-04
申请号：US14792007
申请日：2015-07-06
申请人： Hydro-Gear Limited Partnership
发明人： Nathan W. Bonny
IPC分类号： F15B15/06 , F15B13/02
CPC分类号： F15B15/06 , F04B23/106 , F04B23/12 , F04B23/14 , F15B13/024 , F16H39/14 , F16H61/40 , F16H61/4078 , F16H61/4139 , F16H61/44
摘要： A hydraulic pump assembly having a main pump, a charge pump and an auxiliary pump driven by a single shaft is provided. A pair of hydraulic porting members cooperates to feed and distribute hydraulic fluid between the three pump units, and a single inlet may be used to provide hydraulic fluid to the charge pump and the auxiliary pump.

5. 发明授权

US09677574B1 Transmission assembly 有权
公开(公告)号：US09677574B1
公开(公告)日：2017-06-13
申请号：US14484559
申请日：2014-09-12
申请人： Hydro-Gear Limited Partnership
发明人： Michael L. Bennett
IPC分类号： F15B7/02 , F15B7/00
CPC分类号： F16H39/14
摘要： A compact hydraulic transmission assembly using an axial piston pump disposed on a center section that also provides a cylindrical running surface for a radial piston motor. This design provides for a compact and low profile assembly, while the combination of an axial piston pump with a radial piston motor provides improved efficiency for higher torque output. The radial piston motor includes a lower mass piston block that improves performance.

6. 发明授权

US09416859B2 Hydrostatic stepless transmission 有权
标题翻译：静液压无级变速器
公开(公告)号：US09416859B2
公开(公告)日：2016-08-16
申请号：US13863843
申请日：2013-04-16
申请人： Kanzaki Kokyukoki Mfg. Co., Ltd.
发明人： Koji Iwaki , Jun Matsuura , Daisuke Murashima , Tomoyuki Ebihara , Minoru Kamada
IPC分类号： F16H39/14 , F16H39/00
CPC分类号： F16H39/00 , F16H39/14
摘要： A hydrostatic stepless transmission (“HST”) includes a center casing into which a plunger block of a hydraulic pump and a plunger block of a hydraulic motor are inserted. Plunger ports are open and aligned peripherally on an outer peripheral surface of each plunger block. A pair of main fluid passages of a closed fluid circuit fluidly connecting the hydraulic pump to the hydraulic motor are formed in opposite side portions of the center casing. Each of the main fluid passage includes peripheral grooves formed on an inner peripheral surface of the center casing so as to face the plunger ports of the respective plunger blocks, and includes an axial fluid duct formed to be interposed between the peripheral grooves. A bearing gap is provided between the inner peripheral surface of the center casing and the outer peripheral surface of the plunger block so as to cause a dynamic pressure action of fluid.
摘要翻译：静液压无级变速器（“HST”）包括中央壳体，液压泵的柱塞块和液压马达的柱塞块插入其中。柱塞端口在每个柱塞块的外周表面上是外围开口和对准的。液压泵与液压马达流体连接的闭合流体回路的一对主流体通道形成在中心壳体的相对侧部。每个主流体通道包括形成在中心壳体的内周表面上的周向槽，以便与各个柱塞块的柱塞端口相对，并且包括形成为插入在周边槽之间的轴向流体管道。在中心壳体的内周面和柱塞块的外周面之间设置有轴承间隙，以引起流体的动态压力作用。

7. 发明申请

US20160146244A1 VARIABLE SHAFT FOR HYDRAULIC UNIT 有权
标题翻译：液压单元可变轴
公开(公告)号：US20160146244A1
公开(公告)日：2016-05-26
申请号：US14551990
申请日：2014-11-24
申请人： Hamilton Sundstrand Corporation
发明人： Kris H. Campbell , Glenn C. Lemmers, JR. , Mark J. Franklin
IPC分类号： F16C3/02
CPC分类号： F16C3/02 , F02C7/32 , F04B1/20 , F04B1/2014 , F04B1/2064 , F05D2220/76 , F05D2230/53 , F05D2260/406 , F16C19/26 , F16C33/581 , F16C2240/40 , F16C2360/00 , F16C2360/23 , F16H39/14
摘要： A variable shaft of a hydraulic unit is provided including a body having a first end and a second opposite end. A first flange and a substantially identical second flange are integrally formed with the body of the shaft adjacent the second end. The first flange and the second flange each have an axial length parallel to a longitudinal axis of the body of about 0.085±0.010 inches (0.216±0.0254 cm). The first flange and the second flange have an outer diameter of 1.359 inches (3.452 cm). The first flange and the second flange are separated by from one another by a distance of about 0.3162 inches (0.8031 cm). A portion of the body between the first flange and the second flange has an outer diameter of about 1.2013 inches (3.051 cm).
摘要翻译：提供了一种液压单元的可变轴，包括具有第一端和第二相对端的主体。第一凸缘和基本相同的第二凸缘与邻近第二端的轴的主体一体地形成。第一凸缘和第二凸缘各自具有平行于主体的纵向轴线的约0.085±0.010英寸（0.216±0.0254cm）的轴向长度。第一凸缘和第二凸缘具有1.359英寸（3.452cm）的外径。第一凸缘和第二凸缘彼此分开约0.3162英寸（0.8031cm）的距离。第一凸缘和第二凸缘之间的主体的一部分具有约1.2013英寸（3.051cm）的外径。

8. 发明授权

US09308817B1 Hydrostatic transaxle 有权
标题翻译：静水驱动桥
公开(公告)号：US09308817B1
公开(公告)日：2016-04-12
申请号：US14196639
申请日：2014-03-04
申请人： Hydro-Gear Limited Partnership
发明人： Eric S. Phanco , Kenneth J. Rawski
IPC分类号： F16D31/02 , F01B3/00 , B60K17/10 , F16H39/04 , F16H39/06 , F16H39/14 , B62D11/04
CPC分类号： B60K17/10 , B60K17/105 , B60Y2200/223 , B62D11/04 , F16H39/04 , F16H39/06 , F16H39/14
摘要： A hydraulic drive unit having a center section for a hydraulic pump and hydraulic motor mounted in a casing. The center section includes a cylindrical protuberance for locating the center section in the casing, and at least one fastener opening formed in the center section for receiving a fastener engaged to the casing. The drive unit may also include a pair of flat surfaces formed on the center section and adapted to mount with features in the casing, and a bypass shaft extending into the casing and at least partially disposed in the center section.
摘要翻译：液压驱动单元，其具有用于液压泵的中心部分和安装在壳体中的液压马达。中心部分包括用于将中心部分定位在壳体中的圆柱形突起，以及形成在中心部分中的至少一个紧固件开口，用于接收与壳体接合的紧固件。驱动单元还可以包括形成在中心部分上并适于安装在壳体中的特征的一对平坦表面，以及延伸到壳体中并且至少部分地设置在中心部分中的旁路轴。

9. 发明授权

US09037360B2 Load control for a machine with a dual path electronically controlled hydrostatic transmission 有权
标题翻译：具有双路电子控制液压传动装置的负载控制
公开(公告)号：US09037360B2
公开(公告)日：2015-05-19
申请号：US14066057
申请日：2013-10-29
申请人： CNH AMERICA LLC
发明人： Kushan Vora , Joseph R. Shoemaker , David Schulte , Swapnil Tandel
IPC分类号： F16H61/40 , F16H39/14 , B60W10/00 , E02F9/22 , F16H61/431 , F16H61/46 , E02F3/84
CPC分类号： F16H39/14 , B60W30/00 , E02F3/841 , E02F9/2246 , E02F9/2292 , F16H61/431 , F16H61/46 , F16H61/47
摘要： A method of managing engine load by adjusting the pump and motor displacements of a dual path electronically controlled hydrostatic transmission utilizes the difference between the reference and actual engine speeds, the temperature of the working fluid for the dual path electronically controlled hydrostatic transmission, the engine governor droop value, the vehicle speed and lookup tables to determine pump and motor command adjustment factors associated with specific engine loading conditions.
摘要翻译：通过调整双路电子控制静液压变速器的泵和电动机位移来管理发动机负荷的方法利用参考和实际发动机转速之间的差异，用于双路电子控制静液压传动的工作流体的温度，发动机调速器下降值，车速和查找表，以确定与特定发动机负载条件相关的泵和电机指令调整因子。

10. 发明申请

US20130269328A1 Hydrostatic Stepless Transmission 有权
标题翻译：静压无级变速器
公开(公告)号：US20130269328A1
公开(公告)日：2013-10-17
申请号：US13863843
申请日：2013-04-16
申请人： KANZAKI KOKYUKOKI MFG. CO., LTD.
发明人： Koji IWAKI , Jun Matsuura , Daisuke Murashima , Tomoyuki Ebihara , Minoru Kamada
IPC分类号： F16H39/00
CPC分类号： F16H39/00 , F16H39/14
摘要： A hydrostatic stepless transmission (“HST”) includes a center casing into which a plunger block of a hydraulic pump and a plunger block of a hydraulic motor are inserted. Plunger ports are open and aligned peripherally on an outer peripheral surface of each plunger block. A pair of main fluid passages of a closed fluid circuit fluidly connecting the hydraulic pump to the hydraulic motor are formed in opposite side portions of the center casing. Each of the main fluid passage includes peripheral grooves formed on an inner peripheral surface of the center casing so as to face the plunger ports of the respective plunger blocks, and includes an axial fluid duct formed to be interposed between the peripheral grooves. A bearing gap is provided between the inner peripheral surface of the center casing and the outer peripheral surface of the plunger block so as to cause a dynamic pressure action of fluid.
摘要翻译：静液压无级变速器（“HST”）包括中央壳体，液压泵的柱塞块和液压马达的柱塞块插入其中。柱塞端口在每个柱塞块的外周表面上是外围开口和对准的。液压泵与液压马达流体连接的闭合流体回路的一对主流体通道形成在中心壳体的相对侧部。每个主流体通道包括形成在中心壳体的内周表面上的周向槽，以便与各个柱塞块的柱塞端口相对，并且包括形成为插入在周边槽之间的轴向流体管道。在中心壳体的内周面和柱塞块的外周面之间设置有轴承间隙，以引起流体的动态压力作用。

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