Patent ID: 7546778
Filing Date: 2009-06-16
Classification: G01F

Abstract:
1. An axial flow meter comprising: a housing comprising a generally elongated body having a continuous internal bore; a first spindle mounted in said housing, said first spindle having a first blade on the exterior surface of said first spindle; a second spindle mounted parallel to said first spindle in said housing, said second spindle having a second blade on the exterior surface of said second spindle, said second blade of said second spindle engaging with said first blade of said first spindle; a first and a second bearing engaging a first and a second end of said first spindle; a third and a fourth bearing engaging a first and a second end of said second spindle; each of said first and third bearings being in a fixed position in an axial direction relative to said elongated body; and a sensor unit for detecting and measuring the rotation of at least one of said first and second spindle.