| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 81 | Multiple point velocity probe | US257704 | 1988-10-14 | US4912973A | 1990-04-03 | Les Milewski; Ivan Doskocil |
| A device for measuring the velocity of a fluid such as gas or air, traveling through a duct, which device relies upon a series of precisely controlled apertures for gathering a plurality of fluid samples and presenting the summation of the samples to a central velocity sensor. The device precisely controls the volume of the fluid which can flow across the sensor, thereby preventing pressure gradients within the measuring device from modifying the velocity measurements. | ||||||
| 82 | Venturi-type shunt flowmeter | US470248 | 1983-02-28 | US4454758A | 1984-06-19 | Marion H. Miller |
| A shunt type fluid flow measuring device for use in measuring the rate of fluid flow in a large conduit, wherein a section of said large conduit includes a reduced diameter portion forming a venturi tube and having a tubular fluid by-pass around a portion of said large conduit wherein the tubular by-pass has a small diameter relative to the large conduit, which is further reduced at a single point in the by-pass flow path, and wherein the outlet terminal of the fluid by-pass connects into the large conduit, and further including a mechanical fluid flow measuring device serially connected into the fluid by-pass. | ||||||
| 83 | Electrical flow meter | US29547972 | 1972-10-06 | US3818758A | 1974-06-25 | EASTER E |
| Fluid flow rate determined by measuring the displacement of distributed electrical resistance along a flow conduit through which fluid is conducted. The flow conduit is heated by current simultaneously induced therein and in a fluid storing tube of the same structural and electrical configuration. The resistances of the flow conduit and the fluid storing tube form the resistive branches of a balanced bridge circuit through which changes in the resistance distribution are measured.
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| 84 | Flow meter | US68941657 | 1957-10-10 | US2936621A | 1960-05-17 | HEINRICH STIRNBERG FERDINAND |
| 85 | Flow meter | US59403256 | 1956-06-26 | US2936620A | 1960-05-17 | NEUHAUS GUSTAV K |
| 86 | Device for protecting flow gauge from overloads | US20477851 | 1951-01-06 | US2700307A | 1955-01-25 | THORESEN JOHN C |
| 87 | Apparatus for velocity measurement of a moving fluid | US74704647 | 1947-05-09 | US2614425A | 1952-10-21 | OLAF FALK |
| 88 | Metering system | US21943538 | 1938-07-15 | US2207840A | 1940-07-16 | TORNQUIST EARL L |
| 89 | Apparatus for measuring gases | US42518030 | 1930-02-01 | US1947370A | 1934-02-13 | ZOLL MAURICE B |
| 90 | Proporational gas meter | US36571429 | 1929-05-24 | US1944339A | 1934-01-23 | GUIDO WUNSCH |
| 91 | Flow meter | US73617124 | 1924-09-05 | US1550124A | 1925-08-18 | THOMPSON LOUIS W |
| 92 | Fluid system | US15092717 | 1917-02-26 | US1430731A | 1922-10-03 | GOODELL EARL GEORGE |
| 93 | 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. | ||||||
| 94 | 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. | ||||||
| 95 | 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. | ||||||
| 96 | 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. | ||||||
| 97 | 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. | ||||||
| 98 | 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. | ||||||
| 99 | 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. | ||||||
| 100 | 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. | ||||||
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