| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 121 | Fluid flow measuring apparatus | US88023769 | 1969-11-26 | US3613448A | 1971-10-19 | BENSON JAMES M; EASTER EDMOND |
| APPARATUS FOR MEASURING THE FLOW OF FLUID THROUGH A MAIN SUPPLY LINE WHICH HAS A HEAD ELEMENT THEREIN TO DEVELOP A PRESSURE DROP. A SHUNT PATH HAVING A RESTRICTIVE ELEMENT IS PROVIDED TO BRIDGE THE HEAD ELEMENT. THE SHUNT PATH INCLUDES A THERMAL FLOWMETER COMPRISING A CONDUIT AT LEAST A PORTION OF WHICH IS ELECTRICALLY AND THERMALLY CONDUCTIVE, THE CONDUCTIVE PORTION HAVING ONE OR MORE THERMOELECTRIC DEVICES POSITIONED THEREALONG. HEATING CURRENT IS PASSED THROUGH THE CONDUCTIVE CONDUIT PORTION, AND THE TEMPERATURE GRADIENT CAUSED BY FLUID FLOW THROUGH THE HEATED CONDUIT IS SENSED BY THE THERMOELECTRIC DEVICES TO PROVIDE AN INDICATION OF MASS FLOW SUBSTANTIALLY INDEPENDENT OF PRESSURE AND TEMPERATURE. A SOURCE OF PURGING FLUID AT HIGH PRESSURE IS CONNECTED THROUGH BLEED VALVES TO THE SHUNT PATH ON OPPOSITE SIDES OF THE THERMAL FLOWMETER.
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| 122 | Fluid metering or control system | US62131845 | 1945-10-09 | US2494673A | 1950-01-17 | SMITH GEORGE A |
| 123 | Flowmeter | US47240943 | 1943-01-14 | US2406181A | 1946-08-20 | WIEGAND FRANCIS J |
| 124 | Fluid meter | US30389539 | 1939-11-10 | US2297408A | 1942-09-29 | CARL HARDEBECK |
| 125 | Fluorescent material | US42890842 | 1942-01-30 | US2297108A | 1942-09-29 | MCKEAG ALFRED H; WHITTEN RANBY PETER |
| 126 | Fluid meter | US69588933 | 1933-10-30 | US1972054A | 1934-08-28 | WALDEMAR MOLLER |
| 127 | Apparatus for measuring the quantity of steam, gas, air, water, or like medium flowing through a pipe | US69610424 | 1924-02-29 | US1726463A | 1929-08-27 | GUIDO WUNSCH ERICH PAUL |
| 128 | Venturi Air Flow Sensor and Control System | US15969315 | 2018-05-02 | US20190219427A1 | 2019-07-18 | Matthew Nesbitt; James Riese; Jarvis Penner |
| A Venturi air flow sensor and control system includes a Venturi housing comprising with an inlet section, an outlet section, and a reduced diameter horn shaped center section connecting the inlet section to the outlet section with a damper. A high pressure sensor tube with downstream openings extends across the inlet section on the outlet section and a low pressure sensor tube with downstream openings extends across the reduced diameter horn shaped section. The pressure from the low pressure sensor tube and the pressure from the high pressure sensor tube are connected to a controller. From the high pressure and the low pressure the controller determines the air flow and based on air flow operates the damper. | ||||||
| 129 | Flow sensor | US14800492 | 2015-07-15 | US09952079B2 | 2018-04-24 | Jamie Speldrich; Richard C. Sorenson |
| A flow sensor assembly includes a housing that defines an inlet port, an outlet port, a main channel and a bypass channel. An inlet flow channel fluidly connects the inlet port of the flow sensor assembly to the main channel and an outlet flow channel fluidly connects the main channel to the outlet port. A bypass feeder input channel fluidly connects the main channel to the bypass channel and a bypass feeder output channel fluidly connect the bypass channel to the main channel. In some instances, at least 40 percent of an input pressure differential applied between the inlet port and the outlet port of the flow sensor assembly drops across the inlet flow channel and the outlet flow channel collectively. A sensor is exposed to a fluid in the bypass channel and senses a measure related to a flow rate of the fluid flowing through the bypass channel. | ||||||
| 130 | Flow rate range variable type flow rate control apparatus | US15171333 | 2016-06-02 | US09921089B2 | 2018-03-20 | Tadahiro Ohmi; Masahito Saito; Shoichi Hino; Tsuyoshi Shimazu; Kazuyuki Miura; Kouji Nishino; Masaaki Nagase; Katsuyuki Sugita; Kaoru Hirata; Ryousuke Dohi; Takashi Hirose; Tsutomu Shinohara; Nobukazu Ikeda; Tomokazu Imai; Toshihide Yoshida; Hisashi Tanaka |
| A pressure type flow rate control apparatus is provided wherein flow rate of fluid passing through an orifice is computed as Qc=KP1 (where K is a proportionality constant) or as Qc=KP2m (P1-P2)n (where K is a proportionality constant, m and n constants) by using orifice upstream side pressure P1 and/or orifice downstream side pressure P2. A fluid passage between the downstream side of a control valve and a fluid supply pipe of the pressure type flow rate control apparatus comprises at least 2 fluid passages in parallel, and orifices having different flow rate characteristics are provided for each of these fluid passages, wherein fluid in a small flow quantity area flows to one orifice for flow control of fluid in the small flow quantity area, while fluid in a large flow quantity area flows to the other orifice for flow control of fluid in the large flow quantity area. | ||||||
| 131 | Determining the Delivery Rate of a Pump | US15327251 | 2015-07-17 | US20170198699A1 | 2017-07-13 | Stefan LAUE; Jochen SCHAAB |
| The invention relates to a method for determining the delivery rate of a pump. In this context, a value of the delivery level and a value of the power of the pump are determined. A probability density function is calculated for the delivery level and the power. A first probability density function of the delivery rate is calculated on the basis of a delivery level-delivery rate relationship and the probability density function of the delivery level. A second probability density function of the delivery rate is determined on the basis of a power-delivery rate relationship and the probability density function of the power. A combined probability density function of the delivery rate is determined on the basis of the first and second probability density functions. The delivery rate is determined on the basis of the combined probability density function. | ||||||
| 132 | FLOW RATE MEASURING UNIT AND FLOW RATE CONTROL UNIT | US15363498 | 2016-11-29 | US20170153133A1 | 2017-06-01 | Stefan BÜRGI; Adrian DÄNZER; Christoph BÄCHLER |
| A flow rate measuring unit, comprising a housing, which is composed of at least two housing parts that can be connected to one another and in which a flow passage extends, which branches off into a measuring channel branch and at least one bypass channel branch, wherein a substrate comprising a sensor system is disposed in the measuring channel branch. According to the invention, the flow passage includes a channel widening chamber in which an insert plate stack composed of at least two insert plates is disposed, which each include at least one plate-longitudinal recess extending in the longitudinal direction as the measuring channel branch and/or as the bypass channel branch. The insert plates are provided as insert parts for the channel widening chamber. | ||||||
| 133 | SYSTEM FOR MEASURING TEMPORALLY RESOLVED THROUGH-FLOW PROCESSES OF FLUIDS | US15075207 | 2016-03-21 | US20160281708A1 | 2016-09-29 | HERIBERT KAMMERSTETTER; CHRISTIAN THOMAS BERGER; OTFRIED DERSCHMIDT; MANFRED PROSS; MARTIN DUERRWAECHTER; HERWIG BREITWIESER; OTHMAR BERNHARD |
| A system for measuring temporally resolved through-flow processes of a fluid. The system includes an inlet, a main line comprising a line section, an outlet fluidically connected with the inlet via the main line, a displacement device arranged in the main line, a circuitous line which branches off the main line between the inlet and the displacement device and to enter the main line between the displacement device and the outlet, a pressure difference transducer arranged in the circuitous line, an evaluation and control unit which controls the displacement device, and a bypass line comprising a pump and a sensor. The bypass line branches off from the main line or from the circuitous line and ends at a same side of the displacement device and the pressure difference transducer to bypass the line section or the circuitous line from which the bypass line branches off. | ||||||
| 134 | FLOW RATE RANGE VARIABLE TYPE FLOW RATE CONTROL APPARATUS | US15171333 | 2016-06-02 | US20160274595A1 | 2016-09-22 | Tadahiro Ohmi; Masahito Saito; Shoichi Hino; Tsuyoshi Shimazu; Kazuyuki Miura; Kouji Nishino; Masaaki Nagase; Katsuyuki Sugita; Kaoru Hirata; Ryousuke Dohi; Takashi Hirose; Tsutomu Shinohara; Nobukazu Ikeda; Tomokazu Imai; Toshihide Yoshida; Hisashi Tanaka |
| A pressure type flow rate control apparatus is provided wherein flow rate of fluid passing through an orifice is computed as Qc=KP1 (where K is a proportionality constant) or as Qc=KP2m(P1−P2)n (where K is a proportionality constant, m and n constants) by using orifice upstream side pressure P1 and/or orifice downstream side pressure P2. A fluid passage between the downstream side of a control valve and a fluid supply pipe of the pressure type flow rate control apparatus comprises at least 2 fluid passages in parallel, and orifices having different flow rate characteristics are provided for each of these fluid passages, wherein fluid in a small flow quantity area flows to one orifice for flow control of fluid in the small flow quantity area, while fluid in a large flow quantity area flows to the other orifice for flow control of fluid in the large flow quantity area. | ||||||
| 135 | Flow rate range variable type flow rate control apparatus | US14977162 | 2015-12-21 | US09383758B2 | 2016-07-05 | Tadahiro Ohmi; Masahito Saito; Shoichi Hino; Tsuyoshi Shimazu; Kazuyuki Miura; Kouji Nishino; Masaaki Nagase; Katsuyuki Sugita; Kaoru Hirata; Ryousuke Dohi; Takashi Hirose; Tsutomu Shinohara; Nobukazu Ikeda; Tomokazu Imai; Toshihide Yoshida; Hisashi Tanaka |
| A pressure type flow rate control apparatus is provided wherein flow rate of fluid passing through an orifice is computed as Qc=KP1 (where K is a proportionality constant) or as Qc=KP2m(P1−P2)n (where K is a proportionality constant, m and n constants) by using orifice upstream side pressure P1 and/or orifice downstream side pressure P2. A fluid passage between the downstream side of a control valve and a fluid supply pipe of the pressure type flow rate control apparatus comprises at least 2 fluid passages in parallel, and orifices having different flow rate characteristics are provided for each of these fluid passages, wherein fluid in a small flow quantity area flows to one orifice for flow control of fluid in the small flow quantity area, while fluid in a large flow quantity area flows to the other orifice for flow control of fluid in the large flow quantity area. | ||||||
| 136 | CAPILLARY SENSOR TUBE FLOW METERS AND CONTROLLERS | US14871090 | 2015-09-30 | US20160161311A1 | 2016-06-09 | John G. Olin; Brian Estep |
| Capillary-type mass flow meters and controllers are described that employ temperature sensor hardware providing boundary conditions as necessary for direct computation of mass flow rate. The approach offers dramatically improved operable range and other potential benefits as compared to known systems. | ||||||
| 137 | FLOW RATE RANGE VARIABLE TYPE FLOW RATE CONTROL APPARATUS | US14977162 | 2015-12-21 | US20160109886A1 | 2016-04-21 | Tadahiro Ohmi; Masahito Saito; Shoichi Hino; Tsuyoshi Shimazu; Kazuyuki Miura; Kouji Nishino; Masaaki Nagase; Katsuyuki Sugita; Kaoru Hirata; Ryousuke Dohi; Takashi Hirose; Tsutomu Shinohara; Nobukazu Ikeda; Tomokazu Imai; Toshihide Yoshida; Hisashi Tanaka |
| A pressure type flow rate control apparatus is provided wherein flow rate of fluid passing through an orifice is computed as Qc=KP1 (where K is a proportionality constant) or as Qc=KP2m(P1−P2)n (where K is a proportionality constant, m and n constants) by using orifice upstream side pressure P1 and/or orifice downstream side pressure P2. A fluid passage between the downstream side of a control valve and a fluid supply pipe of the pressure type flow rate control apparatus comprises at least 2 fluid passages in parallel, and orifices having different flow rate characteristics are provided for each of these fluid passages, wherein fluid in a small flow quantity area flows to one orifice for flow control of fluid in the small flow quantity area, while fluid in a large flow quantity area flows to the other orifice for flow control of fluid in the large flow quantity area. | ||||||
| 138 | Diagnostic mechanism | US13250602 | 2011-09-30 | US08965714B2 | 2015-02-24 | Yuji Yamaguchi; Masao Yamaguchi; Kentaro Nagai; Toshiyuki Himi |
| A diagnostic mechanism includes: a flow rate control part configured to control an opening degree of a flow rate control valve provided in a flow passage so that a measurement flow rate value outputted from a flow rate sensor becomes a target flow rate value; an inspection value output part configured to output an inspection value related to a time integral of the measurement flow rate value in a diagnostic period which is defined in correspondence with a part of a period from a time point of closing the flow passage upstream of the flow rate sensor to a time point of expiration of a state that the measurement flow rate value and the target flow rate value are substantially nearly equal; and a diagnosing part configured to compare the inspection value and a predetermined specified value to diagnose whether an abnormality relating to the flow rate sensor is present. | ||||||
| 139 | Static Fluid Sensor in Communication with a Multi-Sensing Device and Method of Operating | US13734203 | 2013-01-04 | US20140195172A1 | 2014-07-10 | Kevin Le; Bryce Gaston |
| A system including a flow sensor coupled to a fluid line and operable to determine flow rate data of a fluid flowing through the fluid line and communicate the flow rate data of the fluid to a multi-sense device. The multi-sense device coupled to the fluid line and operable to monitor characteristics of the fluid flowing through a filter element. The multi-sense device including a microcontroller coupled to a first, second, and third sensors. The microcontroller executing instructions for determining a pressure differential across the filter element using the flow rate data from the flow sensor, the first pressure of the fluid from the first sensor, the second pressure of the fluid from the second sensor, and the temperature of the fluid from the temperature sensor. | ||||||
| 140 | MEASUREMENT APPARATUS FOR MEASURING THE THROUGHFLOW OF A FLUID | US14094043 | 2013-12-02 | US20140083180A1 | 2014-03-27 | Burghardt SCHAEFER; Tuan CHU ANH |
| A measurement apparatus having a measurement tube and a thermal sensor for measuring a throughflow of a fluid flowing through the measurement tube, the measurement tube having an inlet and an outlet, and also a measurement section, in which the sensor is arranged. The inlet has an inlet internal diameter and the measurement section has a measurement section internal diameter, and whereby the measurement section internal diameter is greater than the inlet internal diameter. | ||||||
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