公开(公告)号：US20180259378A1

公开(公告)日：2018-09-13

申请号：US15452795

申请日：2017-03-08

Applicant: Dresser, Inc.

Inventor： Richard Jin Yao ,  Robert Erling Fowler ,  Jeff Thomas Martin ,  Ronald Lewis Strong

IPC: G01F1/115 ,  G01F15/14

CPC classification number: G01F15/14 ,  G01F3/10

Abstract: A gas meter (100) and like metering systems that are configured for use underwater. The gas meter may embody a positive displacement rotary gas meter having a meter body with impellers that counter-rotate in response to material flow. The gas meter can also comprise an index unit having an electronics assembly to generate a value that equates rotation of impellers with a parameter of the material flow. The gas meter can further comprise a connective interface having a first part and a second part, one each disposed on the meter unit and the index unit, respectively, the first part and the second part coupling with one another to provide data to the electronics assembly, the data corresponding with operating conditions on the meter unit and rotation of the impellers. In one example, the first part and the second part are configured so that the meter unit and the index unit are operable underwater to generate the value.

公开(公告)号：US20180262129A1

公开(公告)日：2018-09-13

申请号：US15452823

申请日：2017-03-08

Applicant: Dresser, Inc.

Inventor： Richard Jin Yao

IPC: H02N2/18 ,  H02J7/00 ,  G05D16/06 ,  G01F1/56

CPC classification number: H02N2/186 ,  G01F15/002 ,  G05D16/0655 ,  H02J7/0052 ,  H02J7/32

Abstract: An energy harvester for use to provide power to metrology hardware like gas meters and flow measuring devices. The energy harvester may include an actuator that mounts to a substrate found in the gas meter or in an adjacent, collateral device like a pressure regulator. The substrate may embody a diaphragm or membrane, possibly a thin, flexible or semi-rigid member. The actuator may include piezoelectric transducers that mount to this member. In operation, the piezoelectric transducers can generate an electrical signal in response to mechanical activity (or energy) from the thin member. The electrical signal can be directed to the flow device to replace, supplement, or recharge a power source that powers electronics necessary to expand functions on the flow meter.