Patent ID: 6588284
Filing Date: 2003-07-08
Classification: G01F,Y10T

Abstract:
A Coriolis mass flowmeter comprising:a conduit structure fabricated from one bent conduit with an inlet portion, an outlet portion, a first flow tube, a second flow tube parallel to said first flow tube, said first flow tube and said second flow tube for applying vibrations and detecting Coriolis forces based on the applied vibrations, and a connecting portion connected to said first flow tube and to said second flow tube; a first bases plate connected to each of said first flow tube and second flow tube adjacent to a respective end of each of said first flow tube and second flow tube; a second bases plate connected to each of said first flow tube and second flow tube adjacent to another respective end of each of the first flow tube and second flow tube, said first bases plate and said second bases plate forming nodes of vibration when the flow tubes are driven; a fixing member for integrally fixing each respective end of said first flow tube and said second flow tube; a first supporting member; a second supporting member; an outer casing, said fixing member being secured to said outer casing; an inlet external connecting portion for connection to inlet piping; an outlet external connecting portion for connection to outlet piping, said inlet portion of said conduit extending between said inlet external connecting portion and an inlet of one of said flow tubes and being bent in an L shape and being further bent in another direction, said outlet portion of said conduit extending between said outlet external connecting portion and an outlet of another of said flow tubes being bent in an L shape symmetrically with respect to said inlet portion and being further bent in another direction, said inlet external connecting portion and said outlet external connecting portion being arranged coaxially, said first supporting member including sheets individually fixing ends of said first flow tube, said second supporting member including sheets individually fixing ends of said second flow tube, said first and second supporting members being each fixed by said fixing member, said fixing member having a hollow structure and said supporting members being fixed to said fixing member at two opposite locations of said hollow structure for each end of each of the flow tubes and fixes the ends of the flow tubes.