Patents for G01F 5 - Measuring a proportion of the volume flow (1,398)
02/2000
02/17/2000WO1999019695A3 Mass flow sensor system for fast temperature sensing responses
02/15/2000US6023969 Flow modulated mass flow sensor
02/10/2000DE19835342A1 Verfahren und Vorrichtung zum Messen einer zur Strömungsgeschwindigkeit proportionalen Größe eines Gasstroms und der Menge eines durch eine Leitung strömenden Gases, insbesondere zum Messen der Ansaugluftmenge eines Verbrennungsmotors Method and apparatus for measuring a size proportional to the flow velocity of a gas stream and the amount of a flowing gas through a conduit, in particular for measuring the intake air of an internal combustion engine
02/01/2000US6018994 Temperature sensitive flow sensor having plate-like straightening members on the metering pipe
01/2000
01/11/2000US6012432 Thermal-type airflow meter, intake air system for an internal combustion engine, and control system for the same
01/11/2000CA2147619C Method and apparatus for measuring the flow rate of a medium flow
01/05/2000EP0664879B1 Thermal mass flow controller having orthogonal thermal mass flow sensor
11/1999
11/23/1999US5987981 Method for momentarily identifying a gas or liquid flow, and device for carry out the method
11/03/1999CN1234113A Exhaust gas measuring instrument
11/02/1999US5975126 Method and apparatus for detecting and controlling mass flow
10/1999
10/21/1999WO1999053276A1 Measuring device for measuring the mass of a flowing medium
10/21/1999WO1999053275A1 Device for measuring the mass of a flowing medium
10/21/1999WO1999053274A1 Measuring device for measuring the mass of a medium flowing in a line
10/21/1999DE19913654A1 Throughput measuring system with throughput duct so provided in main duct for fluid to run essentially parallel to main duct and throughput measuring sensor positioned in
10/14/1999DE19815658A1 Vorrichtung zum Messen der Masse eines strömenden Mediums Apparatus for measuring the mass of a flowing medium
10/14/1999DE19815656A1 Meßvorrichtung zum Messen der Masse eines strömenden Mediums Measuring device for measuring the mass of a flowing medium
10/14/1999DE19815654A1 Meßvorrichtung zum Messen der Masse eines in einer Leitung strömenden Mediums Measuring device for measuring the mass of a medium flowing in a line
09/1999
09/30/1999WO1999049284A1 Method and apparatus for measuring airflows in hvac systems
09/22/1999EP0943901A1 Fitting for a liquid flowmeter
09/10/1999WO1999034198A3 Fluid property and flow sensing via a common frequency generator and fast fourier transformation
09/08/1999EP0940742A2 Flow controller, parts of flow controller, and related method
09/08/1999EP0940741A2 Flow controller, parts of flow controller, and related method
09/08/1999EP0940740A2 Flow controller, parts of flow controller, and related method
09/08/1999EP0940657A2 Air flow meter
09/07/1999US5948975 Device for measuring the mass of a flowing medium
09/07/1999US5946905 Optimization control for gas engines with a three-way catalyst
08/1999
08/31/1999US5944048 Method and apparatus for detecting and controlling mass flow
08/24/1999US5942683 Apparatus for measuring gas flow rate in a bypass passage and having a passage restriction portion downstream of the detecting element
08/17/1999US5939628 Thermal type air flow measuring instrument for internal combustion engine
07/1999
07/14/1999EP0928962A1 Exhaust gas measuring instrument
07/08/1999WO1999034198A2 Fluid property and flow sensing via a common frequency generator and fast fourier transformation
07/08/1999CA2316916A1 Fluid property and flow sensing via a common frequency generator and fast fourier transform
06/1999
06/29/1999US5918279 Device for measuring the mass of a flowing medium
06/15/1999US5913239 Mass flow measurement device
06/15/1999US5911238 For use in a manufacturing process
05/1999
05/18/1999US5905200 Cyclonic flow meters and method of using same
05/11/1999US5901741 Flow controller, parts of flow controller, and related method
04/1999
04/22/1999WO1999019695A2 Mass flow sensor system for fast temperature sensing responses
04/13/1999US5894088 Thermal flow meter with less turbulence in fluid flow
04/08/1999WO1999005478A3 Flow measurement mandrel
04/07/1999CN1213431A Bypass type coriolis effect flowmeter
04/06/1999US5892146 Heating resistor type air flow meter with a measuring module inside the main air flow passage body
04/01/1999DE19725398C1 Gas flow measurement method for gas conductor
03/1999
03/31/1999EP0904525A1 Heater with tapered heater density function for use with mass flowmeter
02/1999
02/11/1999WO1999006800A1 Gasmeter
02/09/1999US5869758 Method and apparatus for measuring the flow rate of a medium flow
02/04/1999WO1999005478A2 Flow measurement mandrel
02/04/1999DE19828629A1 Thermal air quantity meter for internal combustion engine air induction system
01/1999
01/20/1999EP0891534A1 Mass flow transducer having extended flow rate measurement range
01/20/1999EP0876588A4 Flowmeter
01/19/1999US5861562 Flow measurement mandrel
01/19/1999US5861561 Flow measurement apparatus for measuring material flow in a conduit
01/13/1999EP0890828A1 Method and apparatus for detecting and controlling mass flow
12/1998
12/22/1998US5850850 Flow controller, parts of flow controller, and related method
11/1998
11/12/1998WO1998050762A1 Improved mass flowmeter and laminar flow elements for use therein
11/11/1998EP0876588A1 Flowmeter
11/04/1998EP0874976A1 Bypass type coriolis effect flowmeter
11/03/1998US5831151 System and method for monitoring the proportional volume of constituents provided to a mixture
10/1998
10/29/1998DE19750594A1 Thermal mass flowmeter, e.g. for vehicle IC engine
10/20/1998US5824895 Air flow meter of a heating resistor type
10/20/1998US5824894 Mass flowmeter and laminar flow elements for use therein
10/14/1998CN1040248C Equipment and method for obtaining material mass flow information flowing in guide tube
09/1998
09/24/1998WO1998041819A1 Elbow mounted turbine flowmeter
09/17/1998WO1998040701A1 Method and device for detecting quantities during milk collection using mobile or stationary collection systems
09/08/1998US5804717 Mass flow transducer having extended flow rate measurement range
08/1998
08/04/1998US5789673 Thermal type air flow measuring instrument for internal combustion engine
07/1998
07/22/1998EP0680602B1 In-flow coriolis effect mass flowmeter
07/08/1998CN1186950A Apparatus and method for monitoring and controlling rate bath turnover
06/1998
06/17/1998EP0848310A1 System and method for monitoring the proportional volume of constituents provided to a mixture
06/16/1998US5765283 Method of making a flow controller
06/13/1998CA2224766A1 System and method for monitoring the proportional volume of constituents provided to a mixture
06/09/1998US5763791 Flowmeter
06/09/1998US5763774 Fluid flow meter with reduced orientation sensitivity
05/1998
05/28/1998WO1998022782A1 Flowmeter
05/26/1998US5756893 Thermal flow meter
05/12/1998US5750892 Laminar flow element with inboard sensor taps and coaxial laminar flow guides
05/07/1998DE19643996A1 Appliance for measuring mass of flowing medium for measuring air intake of IC engines
04/1998
04/08/1998EP0834723A1 Thermal mass flowmeter and mass flow controller, flowmetering system and method
04/02/1998WO1998013680A1 Exhaust gas measuring instrument
03/1998
03/18/1998EP0829793A1 Method for momentarily identifying a gas or liquid flow, and device for carrying out the method
03/18/1998EP0649515B1 Flowmeter
03/05/1998DE19710296C1 Received milk quantity measuring method
03/04/1998CN1175310A Flow controller, purts of flow controller, and related method
01/1998
01/27/1998US5712425 Device for measuring the mass of a flowing medium
01/02/1998DE19625766A1 Paramagnetic oxygen analyser divides sample equally in two
12/1997
12/18/1997WO1997047951A1 Heater with tapered heater density function for use with mass flowmeter
12/18/1997DE19724659A1 Device for measurement of gas flow rate at inlet to vehicle engine
12/09/1997US5696321 Thermal-type air flow measuring instrument with fluid-direction judging capability
12/03/1997EP0809754A1 Optimization control for gas engines with a three-way catalyst
12/02/1997US5693880 Heater with tapered heater density function for use with mass flowmeter
10/1997
10/16/1997WO1997038287A1 Mass flow transducer having extended flow rate measurement range
10/15/1997EP0800672A2 Flow controller, parts of flow controller, and related method
09/1997
09/30/1997US5672822 Thermal flow meter with less turbulence in fluid flow
09/30/1997US5672821 Laminar flow device
09/25/1997DE19612996A1 Measuring unit for monitoring flow of fluid, esp. gas or gas mixture with flow sensor
08/1997
08/26/1997US5660207 Fluid flow meter
08/05/1997US5654506 Heat type air flow meter
07/1997
07/24/1997WO1997026509A1 Bypass type coriolis effect flowmeter
07/16/1997EP0784200A2 Set-up for flowrate measurement of a gaseous substance
05/1997
05/20/1997US5631415 Air flow rate measuring device
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