G - Physics
01
F
73/127
G01F 1/20 (2006.01) G01F 1/32 (2006.01)
Patent
CA 1322470
ABSTRACT OF THE DISCLOSURE A fluidic flowmeter having a reduced pipe portion, a discharge nozzle and an enlarged pipe portion disposed in series in the order in a fluid flow direction, a pair of control nozzles formed on a boundary between the discharge nozzle and the enlarged pipe portion and oriented substantially normal to a discharge direction of the discharge nozzle, the control nozzles facing each other, a pair of return flow passages connecting between the respective control nozzles and a donwstream side of the enlarged pipe portion, a target for stabilizing switching of fluid flow direction at the enlarged pipe portion, a flow amount measuring sensor for detecting a variation in pressure or flow amount due to a variation in the flow direction of discharged fluid from the discharged nozzle, a pair of first partition walls for sectioning the enlarged pipe portion, the control nozzles and the return flow passages, a second partition wall for forming discharge passages togetherwith the first partition walls. A face of the target directed towards the discharge nozzle is positioned between a straight line interconnecting center portions of outer peripheral faces of the first partition walls and another straight line interconnecting leading edges of the first partition walls at the control nozzle side.
569571
Ltd. Osaka Gas Co.
Marks & Clerk
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