公开(公告)号：US6065352A

公开(公告)日：2000-05-23

申请号：US335827

申请日：1999-06-18

Applicant: William M. Schieber

Inventor： William M. Schieber

IPC: G01F1/10 ,  G01F1/115 ,  G01F1/12 ,  G01F1/05 ,  B63H1/26

CPC classification number: G01F1/10 ,  G01F1/1155 ,  G01F1/12

Abstract: A turbine meter used for measuring the volume of fluid flowing through a conduit includes an elongated housing having an upstream end and a downstream end and a rotor mounted within the housing. A plurality of turbine blades are mounted on the rotor at an angle with respect to the axis of rotation of the rotor which causes each of the rotor blades to have a high pressure surface which faces toward the upstream end of the housing. Each of the rotor blades also has a trailing edge closest to the downstream end of the housing. An extension is included at approximately the trailing edge on the high pressure surface of at least one and preferably a plurality of the rotor blades. The extension has a length and forms an angle with respect to the high pressure surface of the rotor blade on which it is mounted which causes the percentage of error of the accuracy of the meter across a chosen operating range of the meter to be within predetermined limits.

Abstract translation: 用于测量流过管道的流体体积的涡轮仪包括具有上游端和下游端的细长壳体和安装在壳体内的转子。 多个涡轮机叶片相对于转子的旋转轴线成角度地安装在转子上，这使得每个转子叶片具有面向壳体的上游端的高压表面。 每个转子叶片还具有最靠近壳体下游端的后缘。 延伸件包括在至少一个且优选多个转子叶片的高压表面的大致后缘处。 该延伸部具有长度并且相对于其上安装的转子叶片的高压表面形成一个角度，这导致在仪表的所选操作范围内仪表的精度的误差百分比在预定限度内 。

公开(公告)号：US5866824A

公开(公告)日：1999-02-02

申请号：US780867

申请日：1997-01-24

Applicant: William M. Schieber

Inventor： William M. Schieber

IPC: G01F1/05 ,  G01F1/08 ,  G01F1/10 ,  G01F1/115 ,  G01F1/12 ,  G01F15/06 ,  G01F15/075 ,  G01F15/00

CPC classification number: G01F1/12 ,  G01F1/05 ,  G01F1/08 ,  G01F1/10 ,  G01F1/115 ,  G01F1/125 ,  G01F15/063 ,  G01F15/0755

Abstract: A gas turbine meter includes a measuring cartridge which has a measuring rotor that rotates in one direction at a speed approximately proportional to the velocity of gas flowing through the meter and a reference rotor mounted downstream of the measuring rotor which rotates in the opposite direction from the measuring rotor. An inlet flow straightener upstream of the measuring rotor causes gas to flow substantially axially within the meter, and a reference flow straightener mounted between the measuring rotor and the reference rotor also causes gas to flow substantially axially within the meter. The inlet flow straightener and the reference flow straightener are constructed so that a measurement of the accuracy of the meter can be conducted without measuring differences in pressure and temperature between the locations of the measuring rotor and the reference rotor. A signal processor provides an indication of the accuracy of the gas turbine meter based on the quotient of a measuring signal, which is proportional to the speed of rotation of the measuring rotor, divided by a reference signal, which is proportional to the speed of rotation of the reference rotor.

Abstract translation: 一种燃气涡轮计量计包括一个测量盒，该测量盒具有一个测量转子，该测量转子以与流过仪表的气体速度大致成正比的速度在一个方向上旋转;以及参考转子，其安装在测量转子的下游， 测量转子。 在测量转子上游的入口流动矫直机使得气体在仪表内基本上轴向流动，并且安装在测量转子和参考转子之间的参考流动矫直机还使得气体在仪表内基本上轴向流动。 入口流动矫直机和参考流动矫直机被构造成使得可以在不测量测量转子和参考转子的位置之间的压力和温度的差异的情况下进行仪表的精度的测量。 信号处理器基于与测量转子的旋转速度成比例的测量信号的商除以与旋转速度成比例的参考信号来提供燃气涡轮计量器的精度的指示 的参考转子。