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    Hydrostatic breaking concept
    1.
    发明授权
    Hydrostatic breaking concept 有权

    公开(公告)号：US10281034B2

    公开(公告)日：2019-05-07

    申请号：US14919832

    申请日：2015-10-22

    申请人： Danfoss Power Solutions GmbH & Co OHG

    发明人： Andreas Schumacher

    IPC分类号： F16H61/421 ,  F16H61/431 ,  F16H61/4157 ,  F16H39/02 ,  F16H61/4017 ,  F16H59/68

    摘要： Hydrostatic transmission and method for decelerating a hydrostatic transmission with a closed hydraulic fluid circuit, in which a hydraulic pump drivable by a drive engine and a hydraulic motor are arranged and connected fluidly to one another through two working lines. Alternately depending on the operational mode and on the conveying direction of the hydraulic pump, one working line is the low pressure line and the other one is the high pressure line. The hydraulic pump as well as the hydraulic motor are adjustable in their respective displacement volumes by means of a control unit. The hydraulic motor comprises a housing in which a hydrostatic drive mechanism having an inlet and an outlet is arranged. In a connecting line connecting the outlet and the inlet a pressure control valve is arranged, which can be flown through in direction to the inlet. The pressure control valve opens if the high pressure present at the outlet exceeds a predetermined pressure limit of the pressure relief valve. During the coasting operation of the hydrostatic transmission the displacement of the hydraulic pump and/or of the hydraulic motor are adjustable by means of the control unit in function of the speed of the drive motor or of the speed of the hydraulic pump.

    VARIABLE CHARGE PUMP SYSTEM FOR CLOSED HYDROSTATIC CIRCUITS
    2.
    发明申请
    VARIABLE CHARGE PUMP SYSTEM FOR CLOSED HYDROSTATIC CIRCUITS 审中-公开

    公开(公告)号：US20170198796A1

    公开(公告)日：2017-07-13

    申请号：US15403218

    申请日：2017-01-11

    申请人： Danfoss Power Solutions GmbH & Co. OHG

    发明人： Andreas Schumacher

    IPC分类号： F16H47/04

    CPC分类号： F16H47/04 ,  F16H61/0028 ,  F16H61/4139

    摘要： The invention relates to a charge pump system (190) comprising a hydrostatic charge pump (12) capable to generate a hydraulic flow rate to be fed into a closed circuit of a hydrostatic transmission, a planetary gear set (20), whose planet wheel carrier (22) is connected to an input shaft (11) of the charge pump (12), and whose sun wheel (21) is driveable by a driving shaft (3); and a charge pump motor (30) capable to drive the ring gear (23) of planetary gear set (20).

    Variable charge pump system for closed hydrostatic circuits
    3.
    发明授权
    Variable charge pump system for closed hydrostatic circuits 有权

    公开(公告)号：US10267399B2

    公开(公告)日：2019-04-23

    申请号：US15403218

    申请日：2017-01-11

    申请人： Danfoss Power Solutions GmbH & Co. OHG

    发明人： Andreas Schumacher

    IPC分类号： F16H47/04 ,  F16H61/4139 ,  F16H61/00

    摘要： The invention relates to a charge pump system (190) comprising a hydrostatic charge pump (12) capable to generate a hydraulic flow rate to be fed into a closed circuit of a hydrostatic transmission, a planetary gear set (20), whose planet wheel carrier (22) is connected to an input shaft (11) of the charge pump (12), and whose sun wheel (21) is driveable by a driving shaft (3); and a charge pump motor (30) capable to drive the ring gear (23) of planetary gear set (20).

    HYDROSTATIC BRAKING CONCEPT
    4.
    发明申请
    HYDROSTATIC BRAKING CONCEPT 审中-公开
    液压制动概念

    公开(公告)号：US20160116060A1

    公开(公告)日：2016-04-28

    申请号：US14919832

    申请日：2015-10-22

    申请人： Danfoss Power Solutions GmbH & Co OHG

    发明人： Andreas Schumacher

    IPC分类号： F16H61/4157 ,  F16H61/4017 ,  F16H61/42 ,  F16H39/02

    CPC分类号： F16H61/4157 ,  F16H39/02 ,  F16H61/4017 ,  F16H61/421 ,  F16H61/431 ,  F16H2059/6869 ,  F16H2059/6876

    摘要： Hydrostatic transmission and method for decelerating a hydrostatic transmission with a closed hydraulic fluid circuit, in which a hydraulic pump drivable by a drive engine and a hydraulic motor are arranged and connected fluidly to one another through two working lines. Alternately depending on the operational mode and on the conveying direction of the hydraulic pump, one working line is the low pressure line and the other one is the high pressure line. The hydraulic pump as well as the hydraulic motor are adjustable in their respective displacement volumes by means of a control unit. The hydraulic motor comprises a housing in which a hydrostatic drive mechanism having an inlet and an outlet is arranged. In a connecting line connecting the outlet and the inlet a pressure control valve is arranged, which can be flown through in direction to the inlet. The pressure control valve opens if the high pressure present at the outlet exceeds a predetermined pressure limit of the pressure relief valve. During the coasting operation of the hydrostatic transmission the displacement of the hydraulic pump and/or of the hydraulic motor are adjustable by means of the control unit in function of the speed of the drive motor or of the speed of the hydraulic pump.

    摘要翻译： 静液压传动装置和利用封闭液压回路减速静液压变速器的方法，其中由驱动发动机和液压马达驱动的液压泵通过两条工作线彼此流动地相互连接。 或者，根据液压泵的运行方式和输送方向，一条工作线是低压线，另一条是高压线。 液压泵以及液压马达通过控制单元在各自的排量中是可调节的。 液压马达包括其中布置有具有入口和出口的静液压驱动机构的壳体。 在连接出口和入口的连接线中，布置有压力控制阀，其可以沿着入口的方向流动。 如果出口处的高压超过泄压阀的预定压力极限，则压力控制阀打开。 在液压传动的惯性操作期间，液压泵和/或液压马达的位移可以通过控制单元根据驱动马达的速度或液压泵的速度来调节。