公开(公告)号：US11060892B2

公开(公告)日：2021-07-13

申请号：US16644827

申请日：2018-08-24

Applicant: CKD CORPORATION

Inventor： Yasushi Ohshima ,  Yuki Sakaki ,  Takaharu Matsuura ,  Ryo Eguchi

IPC: G01F1/32

Abstract: In this vortex flowmeter provided with a vortex generator and a flow rate measuring unit the flow rate measurement unit includes a piezoelectric element and a piezoelectric element case. The piezoelectric element case includes: a fitted part fitted in the body case; a pressure receiving part protruding out from a distal end face of the fitted part and placed in a body passage; a hollow portion formed along the axial direction of the piezoelectric element case in the fitted part to separate the fitted part and the pressure receiving part; and a slit formed inside of the pressure receiving part and configured to accommodate the piezoelectric element.

公开(公告)号：US11307076B2

公开(公告)日：2022-04-19

申请号：US16644829

申请日：2018-08-24

Applicant: CKD CORPORATION

Inventor： Yasushi Ohshima ,  Ryo Eguchi ,  Takaharu Matsuura ,  Yuki Sakaki

IPC: G01F15/02 ,  G01F1/32

Abstract: In this vortex flowmeter provided with a vortex generator and a flow rate measuring unit, a seal member is mounted on a temperature sensing element including a temperature sensor adhered with an adhesive to a metal temperature sensing case. The temperature sensing element is inserted into a first insertion hole formed in a body case so as to communicate with a body passage. A distal end surface of the temperature sensing element is arranged in either a position where the distal end surface is flush with the passage surface of the body passage formed in the body case or a position more outside than the passage surface in the radial direction of the body passage.