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    • 1. 发明授权
    • Device for the control of gas exchange valves
    • 用于控制气体交换阀的装置
    • US07134408B2
    • 2006-11-14
    • US10488446
    • 2003-03-05
    • Udo DiehlBernd RosenauChristian GrosseSimon KieserRalph Engelberg
    • Udo DiehlBernd RosenauChristian GrosseSimon KieserRalph Engelberg
    • F01L9/02
    • F01L9/02
    • A device for controlling gas-exchange valves of an internal combustion engine is provided, which device has hydraulic valve actuators each allocated to one gas-exchange valve. Each valve actuator has an actuating piston acting on the gas-exchange valve, and two hydraulic working chambers delimited by the actuating piston, of which the first working chamber acting upon the gas-exchange valve in the closing direction is constantly filled with fluid under pressure, and the second working chamber acting upon the gas-exchange valve in the opening direction is able to be alternately filled with fluid under pressure and relieved via two electric control valves. For the purpose of cost reduction, provided for each valve-actuator pair is a single first electric control valve that is acted upon with the fluid pressure on the intake side, and is connected on the outlet side to the second working chamber of one valve actuator. The second working chamber of the other valve actuator is filled with fluid with the aid of a switchover valve and the fluid pressure in the second working chamber of the one valve actuator.
    • 提供一种用于控制内燃机的气体交换阀的装置,该装置具有分配给一个气体交换阀的液压阀致动器。 每个阀致动器具有作用在气体交换阀上的致动活塞,并且由致动活塞限定的两个液压工作室,其中在关闭方向上作用在气体交换阀上的第一工作室在压力下始终充满流体 ,并且在打开方向作用在气体交换阀上的第二工作室能够在压力下交替地填充流体并通过两个电动控制阀释放。 为了降低成本,为每个阀 - 致动器对提供一个单一的第一电动控制阀,其作用在进气侧的流体压力,并且在出口侧连接到一个阀致动器的第二工作室 。 另一个阀门致动器的第二个工作腔室借助一个切换阀和一个阀门致动器的第二个工作腔中的流体压力充满流体。
    • 2. 发明申请
    • Device for the control of gas exchange valves
    • 用于控制气体交换阀的装置
    • US20050005881A1
    • 2005-01-13
    • US10488446
    • 2003-03-05
    • Udo DiehlBernd RosenauChristian GrosseSimon KieserRalph Engelberg
    • Udo DiehlBernd RosenauChristian GrosseSimon KieserRalph Engelberg
    • F01L9/02
    • F01L9/02
    • A device for controlling gas-exchange valves of an internal combustion engine is provided, which device has hydraulic valve actuators each allocated to one gas-exchange valve. Each valve actuator has an actuating piston acting on the gas-exchange valve, and two hydraulic working chambers delimited by the actuating piston, of which the first working chamber acting upon the gas-exchange valve in the closing direction is constantly filled with fluid under pressure, and the second working chamber acting upon the gas-exchange valve in the opening direction is able to be alternately filled with fluid under pressure and relieved via two electric control valves. For the purpose of cost reduction, provided for each valve-actuator pair is a single first electric control valve that is acted upon with the fluid pressure on the intake side, and is connected on the outlet side to the second working chamber of one valve actuator. The second working chamber of the other valve actuator is filled with fluid with the aid of a switchover valve and the fluid pressure in the second working chamber of the one valve actuator.
    • 提供一种用于控制内燃机的气体交换阀的装置,该装置具有分配给一个气体交换阀的液压阀致动器。 每个阀致动器具有作用在气体交换阀上的致动活塞,并且由致动活塞限定的两个液压工作室,其中在关闭方向上作用在气体交换阀上的第一工作室在压力下始终充满流体 ,并且在打开方向作用在气体交换阀上的第二工作室能够在压力下交替地填充流体并通过两个电动控制阀释放。 为了降低成本,为每个阀 - 致动器对提供一个单一的第一电动控制阀,其作用在进气侧的流体压力,并且在出口侧连接到一个阀致动器的第二工作室 。 另一个阀门致动器的第二个工作腔室借助一个切换阀和一个阀门致动器的第二个工作腔中的流体压力充满流体。