Oval-wheel flowmeter, method of manufacturing an oval-wheel flow meter, method and apparatus for measuring a flow and metering system

摘要

The invention relates to an oval-wheel flow meter (100) for measuring a flow rate of at least one process medium in a metering system. The oval-wheel flow meter (100) has a housing (110, 115) in which a metering chamber (120), an inlet section (130) and an outlet section (140) are formed, two in the metering chamber (120) between the inlet section (130 ) and the outlet portion (140) rotatably mounted oval wheels (150, 160) and a detection device for detecting a position of the oval wheels (150, 160). In at least one housing part (115) or partial section of the housing (110, 115), a groove (170) facing the measuring chamber (120) is formed. The groove (170) is formed between axes of rotation of the oval wheels (150, 160). A longitudinal axis of the groove (170) extends along a flow axis of the process medium through the metering chamber (120) between the inlet portion (130) and the outlet portion (140).