Air blower apparatus
    3.
    发明授权
    Air blower apparatus 有权
    鼓风机

    公开(公告)号:US06305333B1

    公开(公告)日:2001-10-23

    申请号:US09594484

    申请日:2000-06-16

    IPC分类号: F01P702

    摘要: Air blower apparatus (20) in which a fan boss (41) at the rotational center portion of a fan (29) has a recessed form. Meanwhile, the central part of the body portion (21) of the air blower apparatus (20), i.e., a boss portion (38), has a projecting form to be housed within the recessed fan boss (41). The central part of the body potion (21), i.e., the boss portion (38), is housed within the recessed fan boss (41) at the rotational center portion of the fan (29), and the rotary shaft (39) of the body portion (21) of the air blower apparatus (20) is mounted on the fan (29).

    摘要翻译: 风扇装置(20),其中在风扇(29)的旋转中心部分处的风扇凸台(41)具有凹陷形状。 同时,鼓风机装置(20)的主体部分(21)的中心部分,即凸台部分(38)具有容纳在凹形风扇凸台(41)内的突出形式。 身体部分21的中心部分即凸起部分38在风扇29的旋转中心部分收纳在凹入的风扇凸台41内,旋转轴39 鼓风机装置(20)的主体部(21)安装在风扇(29)上。

    Cooling fan drive apparatus
    7.
    发明授权
    Cooling fan drive apparatus 有权
    冷却风扇驱动装置

    公开(公告)号:US06311488B1

    公开(公告)日:2001-11-06

    申请号:US09422863

    申请日:1999-10-25

    IPC分类号: F16D3102

    CPC分类号: F16D31/02 F01P7/044

    摘要: A target fan rotational speed (R.P.M.) corresponding to a temperature detected by a temperature detector is determined according to a set correlation and the capacity of a variable-capacity hydraulic pump is varied so that the rotational speed of a cooling fan becomes that determined target fan rotational speed. It thereby becomes possible to precisely control the blowing air volume (R.P.M.) of the cooling fan, and, when the cooling fan is driven with a hydraulic source, to construct a hydraulic circuit with fewer parts. Moreover, in cases where the torque absorbed by the fan-drive hydraulic motor fluctuates, control is effected to suppress fluctuations in the cooling fan rotational speed and stabilize the rotation. Furthermore, in cases where the load on the fan-drive hydraulic motor fluctuates, control is effected to suppress fluctuations in the cooling fan rotational speed and stabilize the rotation.

    摘要翻译: 根据设定的相关性确定与温度检测器检测到的温度对应的目标风扇转速(RPM),并且变容量液压泵的容量变化,使得冷却风扇的转速成为确定的目标风扇 转速。 由此,可以精确地控制冷却风扇的吹风量(R.P.M.),并且当用液压源驱动冷却风扇时,构成具有较少部件的液压回路。 此外,在由风扇驱动液压马达吸收的扭矩波动的情况下,进行控制以抑制冷却风扇转速的波动并使旋转稳定。 此外,在风扇驱动液压马达的负载变动的情况下,进行控制以抑制冷却风扇转速的波动并使旋转稳定。

    Pressure fluid supply and delivery apparatus
    8.
    发明授权
    Pressure fluid supply and delivery apparatus 失效
    压力流体供料装置

    公开(公告)号:US06276133B1

    公开(公告)日:2001-08-21

    申请号:US09392225

    申请日:1999-09-09

    IPC分类号: F15B1100

    摘要: An improved pressure fluid supply and delivery apparatus is disclosed that has a pressure compensating function and yet a reduced loss in pressure. The apparatus includes a variable displacement hydraulic pump unit(10; 60, 61) having a plurality of fluid discharge ports(10a, 10b; 60a, 61a) independent each other and a common drive shaft. A plurality of fluid circuits (11, 12) are connected to the plural discharge ports (10a, 10b; 60a, 61a), respectively, and a plurality of fluid operated actuators (14, 16; 14, 14′, 16, 16′) are connected via respective operating valves (13, 15; 13, 13′, 15, 15′) to the plural fluid circuits (11, 12), respectively. Also included in the apparatus is a displacement control means (19, 20; 64, 64) operable in response to discharge pressures in the fluid discharge ports (10a, 10b; 60a. 61a) and load pressures in the actuators (14, 16; 14, 14′, 16, 16′) for controlling discharge fluid pressure of the variable displacement pump unit (10; 60, 61). A combining valve means (21) is disposed between the plural fluid circuits (11, 12), for blocking fluid communication between them when the plural fluid discharge ports (10a, 10b; 60a, 61a) have an equal pressure and operable to establish fluid communication between these fluid circuits via a constriction (24) in the presence of a difference in pressure between those fluid discharge ports.

    摘要翻译: 公开了一种改进的压力流体供应和输送装置,其具有压力补偿功能,并且减小了压力损失。 该装置包括具有彼此独立的多个流体排出口(10a,10b,60a,61a)和公共驱动轴的可变排量液压泵单元(10; 60,61)。 多个流体回路(11,12)分别连接到多个排出口(10a,10b; 60a,61a),以及多个流体驱动致动器(14,16; 14,14',16,16' )经由各个操作阀(13,15; 13,13',15,15')分别连接到多个流体回路(11,12)。 还包括在装置中的是位移控制装置(19,20; 64,64),其响应于流体排出口(10a,10b; 60a,61a)中的排出压力和致动器(14,16; 14,14',16,16'),用于控制可变排量泵单元(10; 60,61)的排出流体压力。 组合阀装置(21)设置在多个流体回路(11,12)之间,用于当多个流体排放口(10a,10b; 60a,61a)具有相等的压力并且可操作地建立流体 在这些流体排出口之间的压力差存在的情况下,通过收缩部(24)在这些流体回路之间进行连通。

    Filter for trapping foreign matter
    9.
    发明授权
    Filter for trapping foreign matter 失效
    滤除异物

    公开(公告)号:US07754069B2

    公开(公告)日:2010-07-13

    申请号:US10802027

    申请日:2004-03-17

    IPC分类号: B01D35/30

    摘要: It is an object of the present invention to provide a filter for trapping foreign matter in which a filtration element can trap foreign matter that is admixed to a fluid present inside the filter with good reliability and a comparatively high trapping ratio. Hydraulic oil that has flown from an opening portion into a guide space of a first flow path guide is guided downward by the first flow path guide and directed toward a second flow path guide. As a result, the oil passes through a very narrow gap, that is, a gap with a cross sectional area of the flow path narrowed so as to increase the flow velocity of the hydraulic oil, a rising flow of the hydraulic oil is formed, and this flow is spouted up by the second flow path guide and guided by the first flow path guide toward a filter element. Foreign matter admixed to the hydraulic oil rises with good intensity together with the hydraulic oil and is moved by the hydraulic oil toward the filter element. Therefore, foreign matter can be trapped by the filter element with good reliability and a comparative high trapping ratio.

    摘要翻译: 本发明的目的是提供一种用于捕集异物的过滤器,其中过滤元件可以以良好的可靠性和较高的捕集率捕获与过滤器内部存在的流体混合的异物。 从开口部流入第一流路导向件的引导空间的液压油被第一流路导向件向下引导并朝向第二流路导向件。 结果,油通过非常窄的间隙,即流路的横截面积变窄的间隙,以增加液压油的流速,形成液压油的上升的流量, 并且该流动被第二流路引导件喷出并被第一流路引导件朝向过滤元件引导。 与液压油混合的异物与液压油一起上升,并被液压油朝向过滤元件移动。 因此,异物可以通过过滤元件被捕获,具有良好的可靠性和较高的捕获率。

    Displacement sensor
    10.
    发明申请
    Displacement sensor 有权
    位移传感器

    公开(公告)号:US20050231193A1

    公开(公告)日:2005-10-20

    申请号:US11100628

    申请日:2005-04-07

    CPC分类号: G01D5/145

    摘要: A plurality of Hall ICs 34A, 34B are disposed around a magnetic rod 32 that is movable along a central axis. The Hall ICs are disposed in different positions in terms of both a straight line distance coordinate in the direction of the central axis and a rotational angle coordinate around the central axis. The amount of displacement of the magnetic rod 32 is calculated based on the average of output signals from the Hall ICs. Errors in the output signals due to a shift and tilt of the magnetic rod are detected and calibration of the measurement method is carried out.

    摘要翻译: 多个霍尔IC34A,34B围绕可沿中心轴线移动的磁棒32设置。 根据中心轴方向的直线距离坐标和围绕中心轴线的旋转角坐标,霍尔IC被设置在不同的位置。 基于来自霍尔IC的输出信号的平均值来计算磁棒32的位移量。 检测由于磁棒的移动和倾斜引起的输出信号的误差,并进行测量方法的校准。