US 11,959,788 B2
Wide range flow measuring device having two Coriolis meters arranged in series and a bypass line to bypass the second Coriolis meter
Michael Buchner, Graz (AT); Thomas Rothlaender, Graz (AT); Andre Steinhoefler, Grosswilfersdorf (AT); Patrick Tinauer, Graz (AT); David Bischof, Graz (AT); and Jaime Diaz Fernandez, Graz (AT)
Assigned to AVL LIST GMBH, Graz (AT)
Appl. No. 17/312,003
Filed by AVL LIST GMBH, Graz (AT)
PCT Filed Dec. 12, 2019, PCT No. PCT/AT2019/060435
§ 371(c)(1), (2) Date Jun. 9, 2021,
PCT Pub. No. WO2020/118341, PCT Pub. Date Jun. 18, 2020.
Claims priority of application No. A 51099/2018 (AT), filed on Dec. 12, 2018.
Prior Publication US 2022/0065677 A1, Mar. 3, 2022
Int. Cl. G01F 1/88 (2006.01); G01F 1/50 (2006.01); G01F 15/02 (2006.01)
CPC G01F 1/88 (2013.01) [G01F 1/50 (2013.01); G01F 15/02 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A measuring system for measuring a mass flow rate, a density, a temperature or a flow velocity, the measuring system comprising:
a main line;
a first Coriolis measuring device arranged in the main line;
a second Coriolis measuring device arranged in series with the first Coriolis measuring device in the main line;
a bypass line which is configured to bypass the second Coriolis measuring device;
a first valve arranged in the bypass line, the first valve being configured to automatically open and close depending on a pressure in the bypass line without any external control; and
a computing unit which is connected to the first Coriolis measuring device and to the second Coriolis measuring device,
wherein,
the first Coriolis measuring device is designed for a higher maximum flow rate than the second Coriolis measuring device.