公开(公告)号：US12123890B2

公开(公告)日：2024-10-22

申请号：US18345481

申请日：2023-06-30

申请人： GM Flow Measurement Services Ltd. ,  SAUDI ARABIAN OIL COMPANY

发明人： Sakethraman Mahalingam ,  Gavin Munro ,  Victor Gawski

IPC分类号： G01N9/26 ,  G01F1/40

CPC分类号： G01N9/26 ,  G01F1/40

摘要： A method for determining flow rates and phase fractions within a throughbore is disclosed. The method includes providing a mixture of one or more fluids through a fluid flow path in a throughbore at a flow rate, reducing the flow rate, slidably moving a first and second sleeve along the throughbore to a first position of a plurality of positions, measuring a first and second differential pressure at the first position, calculating a first loss pressure ratio from the first and second differential pressure. The method further includes slidably moving the first sleeve and second sleeve to each of the others of the plurality of positions in succession after the first position, measuring a plurality of differential pressures and calculating a loss pressure ratio at each of the plurality of positions, and calculating a plurality of flow rates phase fractions of the fluids flowing through the fluid flow path.

公开(公告)号：US12000721B2

公开(公告)日：2024-06-04

申请号：US16993812

申请日：2020-08-14

申请人： Johnson Controls Tyco IP Holdings LLP

发明人： Jean H. Scholten

IPC分类号： G01F1/684 ,  F24F11/30 ,  F24F11/49 ,  F24F11/74 ,  F24F13/10 ,  G01D7/00 ,  G01F1/40 ,  G01F5/00 ,  G05D7/00 ,  F24F110/40

CPC分类号： G01F1/40 ,  F24F11/30 ,  F24F11/49 ,  F24F11/74 ,  F24F13/10 ,  G01F5/00 ,  G05D7/00 ,  F24F2110/40 ,  G01F1/684

摘要： An airflow sensor assembly for an air duct is provided. The airflow sensor assembly includes an air duct having an interior wall and an exterior wall, a high pressure detection device, and a low pressure detection device. The low pressure detection device includes a hollow ring disposed within the interior wall of the air duct. The hollow ring includes an inner periphery portion, an outer periphery portion, and a first set of apertures defined therein. The first set of apertures is spaced around the inner periphery portion of the hollow ring. The airflow sensor assembly further includes a pressure sensor fluidly coupled to the high pressure detection device and the low pressure detection device.

公开(公告)号：US20240060803A1

公开(公告)日：2024-02-22

申请号：US18446668

申请日：2023-08-09

申请人： HORIBA STEC, Co., Ltd.

发明人： Masaki KOBAYASHI ,  Tadahiro YASUDA

IPC分类号： G01F1/40 ,  G05D7/06

CPC分类号： G01F1/40 ,  G05D7/0635

摘要： In order to allow a fluid resistance element to be fixed to the channel while enjoying various benefits of a channel delineating member made from a ceramic, the fluid resistance element includes: a channel delineating member made from a ceramic and having one or a plurality of resistance channels; and a covering member made from a metal and covering an outer peripheral surface of the channel delineating member. The covering member has a bulged portion on an inner peripheral surface of the covering member, the bulged portion bulging toward the outer peripheral surface of the channel delineating member.

公开(公告)号：US11815378B2

公开(公告)日：2023-11-14

申请号：US17144577

申请日：2021-01-08

申请人： ONICON INC.

发明人： Paresh Davé ,  Matthew Maragos ,  William J. Sell

IPC分类号： G01F1/40 ,  G01F15/12

CPC分类号： G01F1/40 ,  G01F15/125

摘要： Differential pressure airflow sensor devices are disclosed. Disclosed are sensor devices for mounting on a fixed resistance having a low-pressure probe for extending through the fixed resistance from a housing and a high-pressure inlet to the housing. Disclosed are sensor devices having a plurality of pressure transducers.

公开(公告)号：US11719611B2

公开(公告)日：2023-08-08

申请号：US17276466

申请日：2019-09-11

申请人： M-Flow Technologies Limited

发明人： Alan David Parker ,  Giles Edward

IPC分类号： G01N9/36 ,  G01F25/10 ,  G01F1/40 ,  G01F1/74 ,  G01F1/84 ,  G01N9/00 ,  G01N22/00 ,  G01N23/12 ,  G01N33/28

CPC分类号： G01N9/36 ,  G01F1/40 ,  G01F1/74 ,  G01F1/8436 ,  G01F25/10 ,  G01N9/002 ,  G01N22/00 ,  G01N23/12 ,  G01N33/2841

摘要： A method produces a void fraction (VF) error curve which correlates an apparent VF with the actual VF of a multi-phase flow, the method comprising (a) using a device to measure a property of the multi-phase flow from which an apparent VF may be calculated; (b) calculating the apparent VF using the measured property from the device; (c) determining the actual VF of the multiphase flow using a radiometric densitometer; (d) using the values from steps (b) and (c) to calculate the VF error; (e) repeating steps (b) through (d) for all expected flow conditions to generate a VF error curve.

公开(公告)号：US20190234776A1

公开(公告)日：2019-08-01

申请号：US15882900

申请日：2018-01-29

申请人： Weatherford Technology Holdings, LLC

发明人： Walter S. Dillard ,  Sang (Paul) Park ,  David J. Vieratis

IPC分类号： G01F1/44 ,  E21B47/10 ,  G01F1/84

CPC分类号： G01F1/44 ,  E21B47/10 ,  G01F1/34 ,  G01F1/40 ,  G01F1/74 ,  G01F1/80 ,  G01F1/8427 ,  G01F1/8436 ,  G01F5/00

摘要： In a drilling system for drilling a borehole with drilling fluid, a flow loop communicates the drilling fluid, and a differential pressure device in the flow loop at a measurement location produces a pressure drop in flow. The measurement location can be between the borehole and a drilling choke or between a mud pump and the borehole. Piping diverts a portion of the flow at the measurement location so a flowmeter can measure the diverted flow portion. A processing unit receives a measured parameter from the flowmeter and determines a diverted flow rate of the diverted portion therefrom to correlate it to a value of the main flow rate through the flow loop at the measurement location.

公开(公告)号：US10018490B2

公开(公告)日：2018-07-10

申请号：US15122198

申请日：2014-02-28

申请人： BREAS MEDICAL AB

发明人： Patrik Stromsten ,  Jan Hellberg

IPC分类号： G01F1/38 ,  G01F1/36 ,  G01F1/40 ,  G01F1/44 ,  G01F15/00 ,  A61M16/20 ,  A61B5/00 ,  A61M16/00 ,  A61M16/10 ,  A61B5/0205

CPC分类号： G01F1/386 ,  A61B5/0205 ,  A61B5/02055 ,  A61B5/4836 ,  A61M16/024 ,  A61M16/206 ,  A61M2016/0027 ,  A61M2016/0039 ,  A61M2016/0042 ,  A61M2016/1025 ,  A61M2016/103 ,  A61M2205/15 ,  A61M2205/3375 ,  A61M2205/502 ,  A61M2206/14 ,  A61M2230/04 ,  A61M2230/10 ,  A61M2230/14 ,  A61M2230/18 ,  A61M2230/205 ,  A61M2230/30 ,  A61M2230/432 ,  A61M2230/435 ,  A61M2230/50 ,  A61M2230/60 ,  G01F1/40 ,  G01F1/44 ,  G01F15/00

摘要： A turbulator adapted to be mounted to or inserted in an inlet portion of a flow meter for a ventilator is disclosed. The turbulator is adapted to create a turbulent gas flow in the inlet portion downstream of the turbulator upon passage of a gas flow therethrough. A flow meter for a ventilator is provided. The flow meter may comprise such turbulator. The turbulator may be arranged in the inlet portion of the flow meter. A membrane for a ventilator flow meter is provided, as well as a flow meter comprising the membrane. A flow meter comprising a turbulator and a membrane is disclosed.

公开(公告)号：US10006790B2

公开(公告)日：2018-06-26

申请号：US15535451

申请日：2015-11-18

申请人： Endress + Hauser GmbH + Co. KG

发明人： Max Jehle ,  Davide Parrotto

IPC分类号： G01F1/34 ,  G01F1/36 ,  G01F1/42 ,  G01F25/00

CPC分类号： G01F1/363 ,  G01F1/40 ,  G01F1/42 ,  G01F25/0007

摘要： A flow-rate measurement assembly for measuring a flow rate of a medium through a measurement pipe, comprising at least one differential-pressure producer, and comprising a differential-pressure measurement transducer for providing a differential-pressure measurement signal, which depends upon the difference between the high-pressure-side media pressure and the low-pressure-side media pressure. The difference is a measure of the flow rate of the medium. The evaluating unit is designed to determine a relationship between the differential-pressure measurement signal and a characteristic parameter of a fluctuation of the differential-pressure measurement signal, to judge the determination of a monotonically decreasing relationship between the differential-pressure measurement signal and the characteristic parameter to be an indication of a clogged high-pressure line, and to judge the determination of a monotonically increasing relationship between the differential-pressure measurement signal and the characteristic parameter, the monotonically increasing relationship of which is significantly stronger than the monotonically increasing relationship of an unclogged flow-rate measurement assembly, as an indication of a clogged low-pressure line.

公开(公告)号：US09846064B2

公开(公告)日：2017-12-19

申请号：US14423164

申请日：2013-08-23

申请人： Cummins Ltd

发明人： Calvin Howard Cox

IPC分类号： G01F1/40 ,  F01D17/02 ,  F02C6/12 ,  G01F1/38 ,  G01M15/14 ,  F01D17/08 ,  F02C7/04

CPC分类号： G01F1/40 ,  F01D17/02 ,  F01D17/08 ,  F02C6/12 ,  F02C7/04 ,  F05D2220/40 ,  F05D2240/40 ,  F05D2260/83 ,  F05D2270/3015 ,  F05D2270/3061 ,  G01F1/38 ,  G01M15/14

摘要： A sensor apparatus comprising a housing having an inner perimeter which defines an area through which gas may flow, the housing being provided with a first chamber which extends around the area through which gas may flow, an entrance being distributed around the first chamber, and a second chamber which extends around the area through which gas may flow, an exit being distributed around the second chamber, the first chamber being arranged to be upstream of the second chamber in use, wherein the sensor apparatus further comprises one or more sensors arranged to measure a pressure difference between pressure in the first chamber and pressure in the second chamber. Corresponding turbocharger and method of measuring a mass flow rate are also provided.

公开(公告)号：US09713438B2

公开(公告)日：2017-07-25

申请号：US15156236

申请日：2016-05-16

申请人： CareFusion 203, Inc.

发明人： Todd W. Allum ,  Malcolm R. Williams ,  Joseph Cipollone

IPC分类号： A61B5/08 ,  A61B5/087 ,  A61M16/00 ,  G01F1/36 ,  G01F1/40 ,  G01F1/50 ,  G01F15/00 ,  A61M16/04 ,  A61M16/08

CPC分类号： A61B5/087 ,  A61B5/0876 ,  A61M16/0051 ,  A61M16/0057 ,  A61M16/021 ,  A61M16/04 ,  A61M16/0816 ,  A61M16/0833 ,  A61M16/0866 ,  A61M2016/0021 ,  A61M2016/0027 ,  A61M2016/0036 ,  A61M2205/42 ,  G01F1/36 ,  G01F1/40 ,  G01F1/50 ,  G01F15/00

摘要： A bi-directional flow sensor may be adapted for reducing pneumatic noise during pressure sensing with a flow passing through the flow sensor. The flow sensor may include a hollow, tubular member having a throat section disposed between a ventilator end and a patient end. A flow restrictor may be disposed in the throat section and may be adapted to measure differential pressure in the flow. A baffle may be mounted at the ventilator end and may be adapted to minimize non-axial flow at pressure taps located on opposing ends of the flow restrictor. The patient end may include a flow obstruction configured to promote uniform velocity across the flow at the pressure taps during exhalation flow from the patient end to the ventilator end. The flow sensor can minimize pneumatic noise to less than 0.1 LPM to allow accurate patient flow measurement and triggering of inhalation and exhalation phases at flow rates of 0.2 LPM.