Hydraulic arrangement for a steered wheel of a vehicle

    公开(公告)号:US11459889B2

    公开(公告)日:2022-10-04

    申请号:US17047734

    申请日:2019-04-25

    摘要: The arrangement comprises a hydraulic machine with at least two operating cylinders, the hydraulic machine comprising a rotor part configured to be connected to the steered wheel and a stator part having main enclosures open in a receiving interface, and a pivot device that defines a pivot axis of the stator part and has main outer orifices linked to the main enclosures of the hydraulic machine in a connection interface. The arrangement further comprises a pilot line linked to a pilot chamber which has a pilot inlet in the receiving interface and the pilot line is formed in the pivot device and extends between an outer pilot orifice present in this device and a pilot opening located in the connection interface.

    Improved Emergency Hydraulic Braking Method and Circuit for Coupling

    公开(公告)号:US20210268999A1

    公开(公告)日:2021-09-02

    申请号:US17258791

    申请日:2019-07-05

    发明人: André Prigent

    IPC分类号: B60T8/17 B60T13/68

    摘要: A method for driving a parking brake of a vehicle (V) wherein: for a setpoint between 0 and C1, the control pressure (200) is zero, and the supplementary pressure (100) is nonzero constant; for a setpoint between C1 and C3, the control pressure is proportional to the setpoint, for a setpoint between C2 and Cmax, the supplementary pressure is zero; said values being such that 0

    Harmonic distribution radial piston hydraulic machine

    公开(公告)号:US11067066B2

    公开(公告)日:2021-07-20

    申请号:US15740874

    申请日:2016-07-01

    摘要: The hydraulic machine includes a cam and a cylinder block with pistons co-operating with cam lobes, each of which has two ramps extending between top and bottom dead center arcs. The cylinders are connected in alternation to a feed and to a discharge, in sequences separated by switchover stages including an isolation stage during which they are isolated relative to the feed and discharge main ducts. The angular position of the start or of the end of at least one first isolation stage relative to the corresponding dead center arc is different from the angular position of the start or of the end of at least one second isolation stage relative to its corresponding dead center arc, both of these dead center arcs being top dead center arcs or both of them being bottom dead center arcs.

    Improved Braking Device
    4.
    发明申请

    公开(公告)号:US20210123488A1

    公开(公告)日:2021-04-29

    申请号:US17051819

    申请日:2019-04-29

    IPC分类号: F16D55/38 F16D65/18 F15B15/00

    摘要: A braking device may include a brake casing rotatably assembled with respect to a shaft along an axis of rotation, first braking elements and second braking elements, forming a stack, an elastic return element configured to exert an application force on the first and second braking elements, and a brake release actuator, adapted to bias the elastic return element along a direction opposing the application direction. The braking device a may include a diffusion wedge and a pressure wedge positioned respectively to bear against the stack and against the elastic return element. The diffusion wedge and the pressure wedge may have contact surfaces defining an annular linear contact about the axis of rotation.

    Hydraulic torque motor
    6.
    发明授权

    公开(公告)号:US10226993B2

    公开(公告)日:2019-03-12

    申请号:US15539114

    申请日:2015-12-23

    IPC分类号: B60K7/00

    摘要: An assembly (20) comprising a radial piston hydraulic motor (10), comprising a fixed housing (15), a shaft (14) that can be driven in rotation by the hydraulic motor (10), a wheel hub (30) comprising a hub barrel (31) that engages on the shaft (14), a bearing (40), a bearing support (41), in which the bearings (40) are housed between the hub barrel (31) and the bearing support (41) of the hydraulic motor (10), the bearing support (41) forming part of the housing (15), such that the bearing function is carried out by the housing (15), the shaft (14) supporting only the weight of same and having only a torque function.

    FLOW CONTROL VALVE
    10.
    发明申请
    FLOW CONTROL VALVE 有权
    流量控制阀

    公开(公告)号:US20160223091A1

    公开(公告)日:2016-08-04

    申请号:US15006594

    申请日:2016-01-26

    IPC分类号: F16K11/07

    摘要: The invention relates to a flow control valve adapted for use as a flow-dividing and flow-combining valve in hydraulic devices, comprising: a valve body having a first longitudinally extending bore, an outer spool slidably positioned within the bore, the outer spool having an axially extending passageway, a pair of axially extending inner spools slidably positioned within the passageway, the valve body having a first port and a pair of second ports, the outer spool having at least a first opening communicating with the first port and with the passageway, and at least two pairs of second openings therethrough. At least one second opening of each pair is of non-constant longitudinal section narrowing from the outer face of the outer spool on at least a part of the thickness of the second opening, so that a lateral side of the second opening offers an obstacle where a part of the fluid flow entering the second opening crashes before entering the inner spool.

    摘要翻译: 本发明涉及一种适于在液压装置中用作分流和流动组合阀的流量控制阀,包括:具有第一纵向延伸的孔的阀体,可滑动地定位在孔内的外部阀芯,外部阀芯具有 轴向延伸的通道,一对可滑动地定位在通道内的轴向延伸的内部线轴,所述阀体具有第一端口和一对第二端口,所述外部线轴至少具有与所述第一端口连通的第一开口和与所述通道 ,以及至少两对第二开口。 每对的至少一个第二开口是在第二开口的厚度的至少一部分上从外部卷轴的外表面变窄的非恒定的纵向截面,使得第二开口的横向侧面提供障碍物, 进入第二开口的流体流的一部分在进入内部卷轴之前崩溃。