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    • 1. 发明授权
    • Shift arrangement for a motor vehicle gearbox
    • 机动车变速箱的换档安排
    • US09309968B2
    • 2016-04-12
    • US13660687
    • 2012-10-25
    • GETRAG Getriebe- und Zahnradfabrik Hermann Hagenmeyer GmbH & Cie KG
    • Guenter RuehleRalf Trutschel
    • F16H59/10F16H61/30F16H63/30
    • F16H61/30F16H63/3023Y10T74/20024
    • Shift arrangement for a motor vehicle gearbox. The shift arrangement has a shift element which can be connected or is connected to a shift member. The shift arrangement has a hydraulic actuator by means of which the shift element can be moved in a first shifting direction and in an opposing second shifting direction. The hydraulic actuator comprises a double-acting hydraulic cylinder which has a first cylinder port and a second cylinder port. The shift arrangement has a hydraulic circuit which has a pump and is connected to the first and second cylinder ports. The pump is connected to an electric motor as a pump drive and is embodied as a bidirectional rotational pump which has a first pump port which is directly connected to the first cylinder port, and which has a second pump port which is directly connected to the second cylinder port. The shift element can be moved by changing the rotational speed and/or the direction of rotation of the electric motor.
    • 机动车变速箱的换档安排。 换档装置具有可连接或连接到换档构件的换档元件。 换档装置具有液压致动器,通过该液压致动器,换档元件可以在第一换档方向和相对的第二换档方向上移动。 液压致动器包括具有第一气缸端口和第二气缸端口的双作用液压缸。 换档装置具有液压回路,其具有泵并连接到第一和第二气缸端口。 泵作为泵驱动器连接到电动机,并被实施为双向旋转泵,其具有直接连接到第一气缸端口的第一泵口,并且具有直接连接到第二泵端口的第二泵口 气缸端口。 可以通过改变电动机的转速和/或旋转方向来移动变速元件。