Method of blending lubricants using positive displacement liquid-handling equipment
    6.
    发明授权
    Method of blending lubricants using positive displacement liquid-handling equipment 有权
    使用正排量液体处理设备混合润滑剂的方法

    公开(公告)号:US07625115B2

    公开(公告)日:2009-12-01

    申请号:US11473697

    申请日:2006-06-23

    IPC分类号: B01F15/04

    摘要: The present invention relates to a method of dispensing accurately small amounts of high viscosity lubricant components using tubeless positive-displacement liquid-handling equipment for forming lubricant blends. The method includes the steps of: providing a low void volume positive displacement pipette with a tapered tip for each lubricant component contained within a lubricant additive reservoir, and one or more lubricant blend containers; ingesting into a low void volume positive displacement pipette from a lubricant additive reservoir an ingestion volume of a lubricant component; moving the low void volume positive displacement pipette from the lubricant additive reservoir to the one or more lubricant blend containers; ejecting into the one or more lubricant blend containers an ejection volume of the lubricant component from the low void volume positive displacement pipette; returning the low void volume positive displacement pipette from the one or more lubricant blend containers to the additive reservoir; and repeating these steps for each additional lubricant component. The advantages of the method of the present invention include improved dispensing accuracy, quicker dispensing, lower shear rate during dispensing, lower temperature for dispensing, less residual additive on the tip of the device after dispensing, and the ability to real time monitor density and mass during dispensing. The method finds application in laboratory test environments, and in particular in high throughput testing environments.

    摘要翻译: 本发明涉及一种使用无机正位移液体处理设备精确分配少量高粘度润滑剂组分的方法,用于形成润滑剂共混物。 该方法包括以下步骤:为包含在润滑剂添加剂储存器内的每个润滑剂组分提供具有锥形尖端的低空隙体积正位移移液器,以及一个或多个润滑剂混合容器; 从润滑剂添加剂储存器中摄取低空隙体积的正位移移液器,其中润滑剂组分的摄取体积; 将低空隙体积正位移移液器从润滑剂添加剂储存器移动到一个或多个润滑剂混合容器; 将一个或多个润滑剂混合容器从低空隙体积正位移移液管喷射出润滑剂组分的喷射体积; 将低空隙体积正位移移液器从一个或多个润滑剂混合容器返回到添加剂储存器; 并为每个额外的润滑剂组分重复这些步骤。 本发明方法的优点包括改进的分配精度,更快的分配,分配期间的较低剪切速率,更低的分配温度,更好的分配后装置末端的残留添加剂,以及实时监控密度和质量的能力 在分配期间。 该方法在实验室测试环境中,特别是在高通量测试环境中应用。