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    • 4. 发明授权
    • Device for metering fluids
    • 计量流体装置
    • US08251081B2
    • 2012-08-28
    • US12527856
    • 2007-02-19
    • Dale HicksJohn H. Matthews
    • Dale HicksJohn H. Matthews
    • G01F25/00F17D1/00E03B7/07
    • G01F13/006G01F25/0038Y10T137/0318Y10T137/794Y10T137/87917Y10T137/88054
    • A device for metering fluids includes a block provided with a channel connecting a fluid inlet in fluid communication with a fluid outlet. The device also includes a filter assembly within the channel and a fluid meter within the channel at a position downstream from the filter assembly. The device further includes a check valve assembly within the channel at a position downstream from the fluid meter. In addition, the device includes a calibration valve assembly within a channel section of the channel between the fluid outlet and the fluid meter. The calibration valve assembly is operable to move between a first position allowing passage of fluid from the fluid meter towards the fluid outlet and a second position blocking the passage of fluid from the fluid meter towards the fluid outlet.
    • 用于计量流体的装置包括具有连接流体入口与流体出口流体连通的通道的块。 该装置还包括在通道内的过滤器组件和在过滤器组件下游位置处的通道内的流量计。 该装置还包括在流体计量器下游的位置处的通道内的止回阀组件。 此外,该装置包括在流体出口和流量计之间的通道的通道部分内的校准阀组件。 校准阀组件可操作以在第一位置和第二位置之间移动,所述第一位置允许流体从流体计流体流向流体出口,第二位置阻止流体从流体流量计流向流体出口。
    • 5. 发明授权
    • Piston rod assembly including preloaded piston head and composite rod
    • 活塞杆组件,包括预载活塞头和复合杆
    • US4872370A
    • 1989-10-10
    • US34841
    • 1987-04-06
    • Terry L. BentonJohn H. Matthews
    • Terry L. BentonJohn H. Matthews
    • F16J1/12
    • F16J1/12F05C2203/0882Y10T403/478Y10T403/7037Y10T74/2162
    • Piston rod assembly includes a composite piston rod having an entrapment ridge along the length thereof, and a non-integral metallic piston head having two separate piston head sections which are welded together in preloaded engagement against opposite sides of the entrapment ridge. The entrapment ridge has oppositely facing external tapered ramp surfaces which are engaged by correspondingly tapered internal ramp surfaces on the respective piston head sections. When the piston head sections are initially brought into engagement with opposite sides of the entrapment ridge, there is a slight gap between the inner faces on the piston head sections which determines the amount of preload force that must be applied to the piston head sections to eliminate the gap and bring the inner faces into substantial mating engagement with each other for welding.
    • 活塞杆组件包括复合活塞杆,其具有沿着其长度的夹带脊,以及具有两个单独的活塞头部分的非整体金属活塞头,其以与所述截留脊的相对侧预先接合的方式被焊接在一起。 捕获脊具有相对的外部锥形斜面,其在相应的活塞头部分上相应地锥形的内部斜面接合。 当活塞头部分最初与捕获脊的相对侧接合时,活塞头部分上的内表面之间存在轻微的间隙,其确定必须施加到活塞头部分以消除的预加载力的量 间隙并使内表面彼此大量配合接合以进行焊接。
    • 6. 发明申请
    • DEVICE FOR METERING FLUIDS
    • 用于测量流体的装置
    • US20100018583A1
    • 2010-01-28
    • US12527856
    • 2007-02-19
    • Dale HicksJohn H. Matthews
    • Dale HicksJohn H. Matthews
    • F17D1/00F16K31/12E03B7/07
    • G01F13/006G01F25/0038Y10T137/0318Y10T137/794Y10T137/87917Y10T137/88054
    • The invention relates to a device for metering fluids comprising a solid block provided within said block with a fluid inlet being in fluid communication with a fluid outlet via a channel; a filter assembly being accommodated within said channel; a fluid meter being accommodated within said channel at a position downstream from the filter assembly; a check valve assembly being accommodated within said channel at a position downstream from the fluid meter. It is an object of the invention to provide a metering device as described above with an additional functionality, which will improve the accuracy of the metering device during use. According to the invention the metering device is characterized in that a calibration valve assembly is accommodated within a channel section of said channel between the first outlet and the fluid meter, said calibration valve assembly being operable between a first, ‘normal’ position allowing the passage of fluid from the fluid meter towards the fluid outlet and a second, ‘calibration’ position blocking the passage of fluid from the fluid meter towards the fluid outlet. With this calibration functionality it is possible to set the device in a so called calibration cycle improving the accuracy and functionality of the device.
    • 本发明涉及一种用于计量流体的装置,包括设置在所述块内的固体块,流体入口通过通道与流体出口流体连通; 过滤器组件容纳在所述通道内; 流量计在过滤器组件的下游位置处容纳在所述通道内; 止回阀组件被容纳在所述通道内的位于所述流量计下游的位置处。 本发明的目的是提供如上所述的具有附加功能的计量装置,其将在使用期间提高计量装置的精度。 根据本发明,计量装置的特征在于,校准阀组件容纳在第一出口和流量计之间的所述通道的通道部分内,所述校准阀组件可在第一“正常”位置之间操作,允许通道 的流体从流体计流向流体出口,以及第二“校准”位置阻止流体从流体计流向流体出口的通道。 通过该校准功能,可以将设备设置在所谓的校准周期中,从而提高设备的精度和功能。