公开(公告)号：WO1995009305A1

公开(公告)日：1995-04-06

申请号：PCT/CA1994000517

申请日：1994-09-20

Applicant: DIVERSEY CORPORATION

Inventor： DIVERSEY CORPORATION ,  LIVINGSTON, James, W. ,  HOSKING, Stephen

IPC: F04B49/06

CPC classification number: G05D7/0682 ,  D06F39/022 ,  F04B43/0081 ,  F04B49/065 ,  F04B2203/0201 ,  F04B2203/0203 ,  F04B2203/0208 ,  F04B2205/05

Abstract: The present invention is an improved flow-metered pumping system using an air-backed diaphragm pump with load compensation. A variable motor speed controller is used to compensate for flow rate reduction caused by pressure effects. When the output pressure on the pump increases to a point where the load on the pump motor exceeds a specified threshold, the motor speed controller increases the speed of the motor to compensate for pressure induced diaphragm distortion losses and to achieve a substantially constant flow rate across a range of pump output pressures.

Abstract translation: 本发明是一种使用具有负载补偿的空气支撑隔膜泵的改进的流量计泵送系统。 可变马达速度控制器用于补偿由压力影响引起的流量降低。 当泵上的输出压力增加到泵电机上的负载超过规定阈值的点时，电动机转速控制器增加电动机的速度，以补偿压力诱导的膜片失真损失并实现基本上恒定的流速 泵输出压力范围。

公开(公告)号：EP0720693A1

公开(公告)日：1996-07-10

申请号：EP94928220.0

申请日：1994-09-20

Applicant: Diversey Corporation

Inventor： LIVINGSTON, James, W. ,  HOSKING, Stephen

IPC: D06F39 ,  F04B43 ,  F04B49 ,  G05D7

CPC classification number: G05D7/0682 ,  D06F39/022 ,  F04B43/0081 ,  F04B49/065 ,  F04B2203/0201 ,  F04B2203/0203 ,  F04B2203/0208 ,  F04B2205/05

Abstract: The present invention is an improved flow-metered pumping system using an air-backed diaphragm pump with load compensation. A variable motor speed controller is used to compensate for flow rate reduction caused by pressure effects. When the output pressure on the pump increases to a point where the load on the pump motor exceeds a specified threshold, the motor speed controller increases the speed of the motor to compensate for pressure induced diaphragm distortion losses and to achieve a substantially constant flow rate across a range of pump output pressures.