Fuel pump control valve assembly
    41.
    发明授权
    Fuel pump control valve assembly 失效
    燃油泵控制阀总成

    公开(公告)号:US5954487A

    公开(公告)日:1999-09-21

    申请号:US911819

    申请日:1997-08-15

    摘要: A fuel pump for a vehicular diesel fuel pump member having a control valve assembly which includes a housing having a control valve chamber, and an actuatable control valve disposed in the control valve chamber. The control valve includes a piston valve body axially movable over a motion displacement interval between first and second positions. The motion displacement interval is defined by first and second sub-intervals bounded by the first and second positions, respectively. The control valve assembly further includes means for actuating the control valve. A valve stop is disposed in the housing adjacent the control valve chamber, and a piston valve body seat contacts the valve stop whenever the piston valve body is in the second position. The piston valve body seat contacts a pump body seating surface whenever the piston valve body is in the first position. A first control valve spring resiliently biases the piston valve body toward the unactuated position whenever the piston valve body is in the first sub-interval. A second control valve spring resiliently biases the piston valve body into damped engagement with the valve stop whenever the piston valve body is in the second sub-interval.

    摘要翻译: 一种用于车辆柴油燃料泵构件的燃料泵,其具有包括具有控制阀室的壳体和设置在所述控制阀室中的致动控制阀的控制阀组件。 控制阀包括可在第一和第二位置之间的运动位移间隔上轴向移动的活塞阀体。 运动位移间隔由分别由第一和第二位置限定的第一和第二子区间限定。 控制阀组件还包括用于致动控制阀的装置。 阀门与壳体相邻设置在控制阀室内,只要活塞阀体处于第二位置,活塞阀体阀座与阀门停止接触。 每当活塞阀体处于第一位置时,活塞阀体座接触泵本体座面。 每当活塞阀体处于第一次间隔时,第一控制阀弹簧弹性地将活塞阀体朝向未致动位置偏压。 每当活塞阀体处于第二次间隔时,第二控制阀弹簧弹性地将活塞阀体偏压到阀止挡件上。

    Radial piston fluid machine and/or adjustable rotor
    42.
    发明授权
    Radial piston fluid machine and/or adjustable rotor 失效
    径向活塞流体机器和/或可调转子

    公开(公告)号:US5944493A

    公开(公告)日:1999-08-31

    申请号:US865601

    申请日:1997-05-29

    摘要: An adjustable rotor and/or a radial piston machine which may utilize an adjustable rotor. The rotor has a primary eccentric rotatable around an axis and a secondary eccentric adjustable in position relative to the primary eccentric. The radial piston machine includes a plurality of piston cartridges arranged radially around the axis and both high pressure and low pressure fluid distribution systems. Multiple units may be axially coupled. A single unit may handle a variety of fluids in various combinations.

    摘要翻译: 可调节转子和/或径向活塞机,其可以利用可调节的转子。 转子具有可围绕轴线旋转的主要偏心体和相对于主偏心器可调节位置的次级偏心。 径向活塞机包括围绕轴线径向排列的多个活塞盒,以及高压和低压流体分配系统。 多个单元可以轴向联接。 单个单元可以以各种组合处理各种流体。

    Pneumatic bellows pump with supported bellows tube
    43.
    发明授权
    Pneumatic bellows pump with supported bellows tube 失效
    气动波纹管,带支撑波纹管

    公开(公告)号:US5224841A

    公开(公告)日:1993-07-06

    申请号:US874333

    申请日:1992-04-24

    摘要: A low contamination double bellows pump suitable for providing relatively constant pressure and delivery. The illustrated pump includes two pumping chambers with bellows arranged in opposed relationship on opposite sides of a central section. The central section acts as a valve body for inlet and outlet valves. The bellows are provided with interior bellows tubes which connect to the free ends of the bellows and slide upon stationary support pistons mounted within each tube. Bellows tube head pieces slide upon piston rods which support the pistons. Pneumatic pressure is controllably supplied to opposing sides of the pistons within the bellows tubes to power the bellows and effect pumping.

    摘要翻译: 低污染双波纹管泵适用于提供相对恒定的压力和输送。 示出的泵包括两个泵送室,其中波纹管以相对的关系布置在中心部分的相对侧上。 中心部分用作入口和出口阀的阀体。 波纹管设有内部波纹管,其连接到波纹管的自由端并在安装在每个管内的固定支撑活塞上滑动。 波纹管管头部件在支撑活塞的活塞杆上滑动。 气动压力可控地供应到波纹管内的活塞的相对侧面,以对波纹管供电并实现泵送。