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1.发明授权Continuously variable transmission with at least two pumps connected in series/parallel 失效连续可变变速器，至少两台泵串联/并联连接
公开(公告)号：US5941786A
公开(公告)日：1999-08-24
申请号：US914791
申请日：1997-08-20
IPC分类号： F15B11/00 , F16H9/00 , F16H9/18 , F16H61/00 , F16H61/02 , F16H61/662 , F16H59/00 , F16D31/02
CPC分类号： F16H61/0031 , F16H61/66272 , F16H2061/66286
摘要： Continuously variable transmission, in particular for a motor vehicle, provided with a primary pulley mounted on a primary shaft, a secondary pulley mounted on a secondary shaft, and a drive belt running over both pulleys, each pulley formed by two sheaves, one of which is movable axially relative to the other under the influence of a hydraulic cylinder, for setting the transmission ratio, a pumping unit with at least two pumps for delivering hydraulic medium to the hydraulic cylinders, and a control unit for controlling the pump delivery depending on the operating conditions of the transmission, includes a pumping unit with at least two pumps, the first of which serves as a booster pump for the second pump connected in series, and a switch valve, under the control of the control unit, fitted so that the two pumps can be switched over from series connection to parallel connection if the volume flow of the medium required by the transmission is greater than the available volume flow in the series connection.
摘要翻译： 连续可变变速器，特别是机动车辆，其具有安装在主轴上的初级皮带轮，安装在副轴上的辅助皮带轮和在两个皮带轮上运行的传动皮带，每个皮带轮由两个滑轮形成，其中一个滑轮 在液压缸的影响下相对于另一个轴向移动，用于设定传动比，具有至少两个泵的泵送单元，用于将液压介质输送到液压缸;以及控制单元，用于根据 变速器的操作条件包括具有至少两个泵的泵送单元，其中第一个泵用作用于串联连接的第二泵的增压泵，并且在控制单元的控制下安装了开关阀，使得 如果变速器所需的介质的体积流量大于可用的体积流量，则两个泵可以从串联连接切换到并联 串联连接。
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公开(公告)号：US06312243B1
公开(公告)日：2001-11-06
申请号：US09688348
申请日：2000-10-16
IPC分类号： F04C2344
CPC分类号： F04C15/06 , F04C2/3447 , F04C15/062
摘要： The invention relates to a roller vane pump for operating an automatic transmission for motor vehicles. The pump is provided with a pump housing (12), a rotor (4), a cam ring (2) and roller elements (7), which define a number of pump chambers (13). Fluid is communicated between a hydraulic channel (24) and a pump chamber (13) through suction ports (11 and 16) and discharge ports (17 and 18). According to the invention the pump is provided with a suction port (26) for allowing a predominantly radial flow of fluid to a pump chamber (13) and/or with a rotor (4) with slots (6) with a circumference (32) which is partly curved with a curvature substantially matching the curvature of the roller elements (7) and/or with a rotor (4) with a circumference segment (30) deviating at least partly from a circle, in order to decrease the amount of wear of pump parts as well as the noise level generated during pumping.
摘要翻译： 本发明涉及一种用于操作机动车辆的自动变速器的滚子叶片泵。 该泵设置有限定多个泵室（13）的泵壳体（12），转子（4），凸轮环（2）和滚轮元件（7）。 流体通过吸入口（11和16）和排出口（17和18）在液压通道（24）和泵室（13）之间连通。 根据本发明，泵设置有用于允许流体主要径向流动到泵室（13）和/或具有带有具有圆周（32）的槽（6）的转子（4）的吸入口（26） 其部分地弯曲，其曲率基本上与滚子元件（7）的曲率和/或具有至少部分偏离圆的圆周段（30）的转子（4）基本匹配，以减少磨损量 的泵部件以及泵送期间产生的噪声水平。
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公开(公告)号：US06375445B1
公开(公告)日：2002-04-23
申请号：US09688347
申请日：2000-10-16
IPC分类号： F04C2344
CPC分类号： F04C15/06 , F04C2/3447 , F04C15/062
摘要： The invention relates to a roller vane pump for operating an automatic transmission for motor vehicles. The pump is provided with a pump housing (12), a rotor (4), a cam ring (2) and roller elements (7), which define a number of pump chambers (13). Fluid is communicated between a hydraulic channel (24) and a pump chamber (13) through suction ports (11 and 16) and discharge ports (17 and 18). According to the invention the pump is provided with a suction port (26) for allowing a predominantly radial flow of fluid to a pump chamber (13) and/or with a rotor (4) with slots (6) with a circumference (32) which is partly curved with a curvature substantially matching the curvature of the roller elements (7) and/or with a rotor (4) with a circumference segment (30) deviating at least partly from a circle, in order to decrease the amount of wear of pump parts as well as the noise level generated during pumping.
摘要翻译： 本发明涉及一种用于操作机动车辆的自动变速器的滚子叶片泵。 该泵设置有限定多个泵室（13）的泵壳体（12），转子（4），凸轮环（2）和滚轮元件（7）。 流体通过吸入口（11和16）和排出口（17和18）在液压通道（24）和泵室（13）之间连通。 根据本发明，泵设置有用于允许流体主要径向流动到泵室（13）和/或具有带有具有圆周（32）的槽（6）的转子（4）的吸入口（26） 其部分地弯曲，其曲率基本上与滚子元件（7）的曲率和/或具有至少部分偏离圆的圆周段（30）的转子（4）基本匹配，以减少磨损量 的泵部件以及泵送期间产生的噪声水平。
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公开(公告)号：US6152711A
公开(公告)日：2000-11-28
申请号：US197662
申请日：1998-11-23
CPC分类号： F04C15/06 , F04C15/062 , F04C2/3447
摘要： The invention relates to a roller vane pump for operating an automatic transmission for motor vehicles. The pump is provided with a pump housing (12), a rotor (4), a cam ring (2) and roller elements (7), which define a number of pump chambers (13). Fluid is communicated between a hydraulic channel (24) and a pump chamber (13) through suction ports (11 and 16) and discharge ports (17 and 18). According to the invention the pump is provided with a suction port (26) for allowing a predominantly radial flow of fluid to a pump chamber (13) and/or with a rotor (4) with slots (6) with a circumference (32) which is partly curved with a curvature substantially matching the curvature of the roller elements (7) and/or with a rotor (4) with a circumference segment (30) deviating at least partly from a circle, in order to decrease the amount of wear of pump parts as well as the noise level generated during pumping.
摘要翻译： 本发明涉及一种用于操作机动车辆的自动变速器的滚子叶片泵。 该泵设置有限定多个泵室（13）的泵壳体（12），转子（4），凸轮环（2）和滚轮元件（7）。 流体通过吸入口（11和16）和排出口（17和18）在液压通道（24）和泵室（13）之间连通。 根据本发明，泵设置有用于允许流体主要径向流动到泵室（13）和/或具有带有具有圆周（32）的槽（6）的转子（4）的吸入口（26） 其部分地弯曲，其曲率基本上与滚子元件（7）的曲率和/或具有至少部分偏离圆的圆周段（30）的转子（4）基本匹配，以减少磨损量 的泵部件以及泵送期间产生的噪声水平。
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