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    • 1. 发明申请
    • PUMP DEVICE
    • US20160131119A1
    • 2016-05-12
    • US14930738
    • 2015-11-03
    • Welm FriedrichsenLars MartensenFrank Holm IversenPalle OlsenStig Kildegaard Andersen
    • Welm FriedrichsenLars MartensenFrank Holm IversenPalle OlsenStig Kildegaard Andersen
    • F04B1/29F04B53/14F04B53/10F04B1/14F04B19/22
    • F04B1/22F04B1/2021F04B53/10
    • A pump device (1) is provided comprising: a shaft (2), rotor means (3a, 3b) fixed to said shaft (2) in rotational direction, said rotor means (3a, 3b) having pressure chambers (5a, 5b) the volume of which varying during a rotation of said rotor means (3a, 3b), port plate means (15a, 15b) having a through going opening (16a, 16b) for each of said pressure chambers (5a, 5b) and being connected to said rotor means (3a, 3b) in rotational direction, and valve plate means (17a, 17b) cooperating with said port plate means (15a, 15b). It is intended to pressurize a high volume of fluid, in particular water, within a limited space. To this end said rotor means (3a, 3b) comprise a first rotor (3a) and at least a second rotor (3b), both rotors being fixed to said shaft (2) in rotational direction, said first rotor (3a) having at least a first pressure chamber (5a) and said second rotor (3b) having at least a second pressure chamber (5b), said port plate means (15a, 15b) having a first port plate (15a) and at least a second port plate (15b), said first port plate (15a) having a through going opening (16a) for said first pressure chamber (5a) and being connected to said first rotor (3a) in rotational direction, said second port plate (15b) having a through going opening (16b) for said second pressure chamber (5b) and being connected to said second rotor (3b) in rotational direction, said valve plate means (17a, 17b) having a first valve plate (17a) and at least a second valve plate (17b), said first valve plate (17a) cooperating with said first port plate (15a), and said second valve plate (17b) cooperating with said second port plate (15b), wherein at least one of said first rotor (3a) and said second rotor (3b) comprises force generating means (19) pressing said second port plate (15b) against said second valve plate (17b) even in absence of hydraulic pressure in said second pressure chamber (5b).
    • 7. 发明授权
    • Valve arrangement
    • 阀门布置
    • US08444110B2
    • 2013-05-21
    • US12785727
    • 2010-05-24
    • Verner SmidtLasse Nicolai LangmaackSiegfried ZenkerErik HaugaardCarsten ChristensenWelm Friedrichsen
    • Verner SmidtLasse Nicolai LangmaackSiegfried ZenkerErik HaugaardCarsten ChristensenWelm Friedrichsen
    • F16K31/363
    • F16K31/12F16K31/406Y10T137/7837
    • The invention concerns a valve arrangement (7) comprising a flow path (11) connecting an inlet (9) and an outlet (10), a closing means (12) arranged in said flow path (11), a resetting means and a first pressure in a first pressure chamber (14) acting in a closing direction on said closing means (12), a pressure of said outlet (10) and a second pressure in a second pressure chamber (18) corresponding to a pressure of said inlet (9) when said closing means (12) is closed acting in opening direction on said closing means (12), said first pressure chamber (14) being connectable to the outlet (10) via an auxiliary valve (13). It is intended to keep small a pressure pulse when opening the valve arrangement (7). This is achieved in that the closing means (12) having a first opening state (A) and a second opening state (B), a flow resistance of said closing means (12) in said first opening state (A) being larger than a flow resistance of said closing means in said second opening state (B).
    • 本发明涉及一种阀装置(7),其包括连接入口(9)和出口(10)的流路(11),布置在所述流路(11)中的关闭装置(12),复位装置和第一 在所述关闭装置(12)上沿关闭方向作用的第一压力室(14)中的压力,所述出口(10)的压力和第二压力室(18)中对应于所述入口 9)当所述关闭装置(12)在所述关闭装置(12)的打开方向上闭合时,所述第一压力室(14)可经由辅助阀(13)连接到出口(10)。 打开阀门装置(7)时要保持较小的压力脉冲。 这是因为具有第一开启状态(A)和第二打开状态(B)的关闭装置(12),所述关闭装置(12)在所述第一打开状态(A)中的流动阻力大于 所述关闭装置在所述第二打开状态(B)中的流动阻力。
    • 9. 发明授权
    • Vehicle hydraulic driving system
    • 车辆液压驱动系统
    • US06688419B2
    • 2004-02-10
    • US09997017
    • 2001-11-28
    • Uffe Lykke EriksenWelm Friedrichsen
    • Uffe Lykke EriksenWelm Friedrichsen
    • B60K1714
    • E02F9/226B60K17/10F16H61/42F16H63/48
    • A hydraulic drive for a vehicle has a pressure source (7) generating a predetermined pressure for maintaining the operating pressure of a hydraulic motor (5), a braking cylinder (18) with a spring chamber (20) comprising a spring arrangement (19) for operating a braking arrangement (17) and a release chamber (21) that can be acted upon by pressurised fluid from the pressure source (7) against the force of the spring arrangement (19) with the purpose of retaining the braking device (17) in its release position, and comprises a braking control valve (22) that, in a release position, releases a flow from the pressure source (7) to the release chamber (21).
    • 用于车辆的液压驱动器具有产生用于维持液压马达(5)的操作压力的预定压力的压力源(7),具有弹簧室(20)的制动缸(18)包括弹簧装置(19) 用于操作制动装置(17)和释放室(21),所述制动装置(17)和释放室(21)能够克服所述弹簧装置(19)的力而被来自所述压力源(7)的加压流体作用,以保持所述制动装置 ),并且包括制动控制阀(22),其在释放位置中释放从压力源(7)到释放室(21)的流动。
    • 10. 发明授权
    • Hydraulic driving device and system for a vehicle
    • 液压驱动装置及车辆系统
    • US06594993B1
    • 2003-07-22
    • US09715610
    • 2000-11-17
    • Welm FriedrichsenUffe Lykke Eriksen
    • Welm FriedrichsenUffe Lykke Eriksen
    • F16D3102
    • F16D55/40B60T1/062B60T13/22F16D2121/12
    • Hydraulic driving device with a hydraulic motor and a bearing arrangement in which the output shaft of the hydraulic motor is supported. Typically, the bearing arrangement is axially supported on the output shaft between a shoulder of the output shaft and a nut screwed onto the output shaft. To reduce overall length, the invention provides that the shoulder is located on the side of the bearing arrangement opposite from the end of the output side of the output shaft, and a friction-disc pack directly bears on the bearing arrangement. The motor has a braking device, including the friction-disc pack and at least one braking cylinder with a spring chamber and a release chamber. A braking valve in the braking position supplies the spring chamber with the load pressure and the release chamber with the tank pressure, and in the release position supplies the spring chamber with the tank pressure and the release chamber with the load pressure. The motor has a flushing line and a leakage line, which in one form of the invention are connected with the spring chamber and led to a tank via the braking valve. In another form of the invention, the leakage line is connected to the release chamber and the flushing line is connected to the spring chamber. In yet another form, the leakage line is connected to the spring chamber and the flushing line is connected to the release chamber. The combination of lines from the braking device and the flushing system results in simplifications.
    • 具有液压马达的液压驱动装置和支撑液压马达的输出轴的轴承装置。 通常,轴承装置轴向地支撑在输出轴之间的输出轴的肩部和拧在输出轴上的螺母之间。 为了减少总长度,本发明提供了肩部位于与输出轴的输出侧的端部相对的轴承装置侧,并且摩擦盘组件直接承载在轴承装置上。 电动机具有包括摩擦盘组件和至少一个具有弹簧室和释放室的制动缸的制动装置。 在制动位置的制动阀向弹簧室提供负载压力和释放腔室的压力,并且在释放位置向弹簧室提供具有负载压力的箱体压力和释放室。 电动机具有冲洗线和泄漏线,其在本发明的一种形式中与弹簧室连接并通过制动阀被引导到罐。 在本发明的另一种形式中,泄漏线连接到释放室,冲洗线连接到弹簧室。 在另一种形式中,泄漏线连接到弹簧室,并且冲洗线连接到释放室。 来自制动装置和冲洗系统的组合导致简化。