公开(公告)号：US20100189574A1

公开(公告)日：2010-07-29

申请号：US12701915

申请日：2010-02-08

申请人： Jose de Corral ,  Stanley P. Pensak, JR.

发明人： Jose de Corral ,  Stanley P. Pensak, JR.

IPC分类号： F04B49/00

CPC分类号： F04B49/065 ,  F04B11/0058 ,  F04B11/0075 ,  F04B23/06 ,  F04B2205/01 ,  F04B2205/05 ,  F04B2205/09 ,  F04B2205/10 ,  F04B2205/11 ,  G01N2030/326

摘要： A feedback control loop for a high pressure pump modifies the accumulator velocity and pressure during solvent transfer. The accumulator velocity is adjusted to maintain the system pressure equal to the expected pressure to thereby eliminate the effect of the flow deficit created by a thermal effect.

摘要翻译： 用于高压泵的反馈控制回路在溶剂转移期间改变储液器的速度和压力。 调节蓄能器速度以保持系统压力等于预期的压力，从而消除由热效应产生的流量缺陷的影响。

公开(公告)号：US08333568B2

公开(公告)日：2012-12-18

申请号：US10598310

申请日：2005-03-04

申请人： Joseph A. Luongo ,  John Angelosanto ,  Frank Rubino ,  Stanley P. Pensak, Jr. ,  David J. First ,  Jean-Pierre Pugnaire ,  Richard R. Venable

发明人： Joseph A. Luongo ,  John Angelosanto ,  Frank Rubino ,  Stanley P. Pensak, Jr. ,  David J. First ,  Jean-Pierre Pugnaire ,  Richard R. Venable

IPC分类号： F04B49/00

CPC分类号： F04B53/162 ,  F04B53/16 ,  F04B2205/03 ,  G01N2030/326

摘要： Embodiments of the present invention are directed to method and devices for measuring the pressure of a pump chamber in which no internal opening or connections are needed. One embodiment of the present invention is directed to an apparatus for pumping fluid. The apparatus comprises at least one housing having a transducer surface. The transducer surface has a thickness exhibiting measurable deformation upon the chamber holding a fluid under pressure such that the transducer surface has a first position at which the chamber is at one pressure and a second position at which the chamber is at a second pressure. A strain sensor is affixed to the transducer surface producing; at least one signal upon the transducer surface assuming the first position and at least one signal upon the transducer surface assuming the second position to function as an integrated pressure transducer.

摘要翻译： 本发明的实施例涉及用于测量不需要内部开口或连接的泵室的压力的方法和装置。 本发明的一个实施例涉及一种用于泵送流体的装置。 该装置包括具有换能器表面的至少一个壳体。 换能器表面具有在腔室上保持流体的压力下呈现可测量变形的厚度，使得换能器表面具有腔室处于一个压力的第一位置和腔室处于第二压力的第二位置。 应变传感器固定在传感器表面上; 在换能器表面上的至少一个信号假设第一位置，并且在换能器表面上的至少一个信号假设第二位置用作集成的压力换能器。