CA2037993A1 - Flow indicator or flowmeter - Google Patents
Flow indicator or flowmeterInfo
- Publication number
- CA2037993A1 CA2037993A1 CA2037993A CA2037993A CA2037993A1 CA 2037993 A1 CA2037993 A1 CA 2037993A1 CA 2037993 A CA2037993 A CA 2037993A CA 2037993 A CA2037993 A CA 2037993A CA 2037993 A1 CA2037993 A1 CA 2037993A1
- Authority
- CA
- Canada
- Prior art keywords
- approximately
- diameter
- litres
- nozzle
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
- G01F1/06—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects using rotating vanes with tangential admission
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
- G01F1/06—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects using rotating vanes with tangential admission
- G01F1/075—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects using rotating vanes with tangential admission with magnetic or electromagnetic coupling to the indicating device
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/14—Casings, e.g. of special material
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P21/00—Testing or calibrating of apparatus or devices covered by the preceding groups
- G01P21/02—Testing or calibrating of apparatus or devices covered by the preceding groups of speedometers
- G01P21/025—Testing or calibrating of apparatus or devices covered by the preceding groups of speedometers for measuring speed of fluids; for measuring speed of bodies relative to fluids
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Electromagnetism (AREA)
- Measuring Volume Flow (AREA)
- Lubricants (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
- Paper (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
Abstract
The invention relates to a flow-indicating and -measuring device, having an impeller rotatably mounted in an essentially circular-cylindrical flow chamber, possessing an inlet channel and an outlet channel, belonging to a flow housing. So that such an indicating and measuring device can be used with high measuring accuracy for a wide measuring range without calibration, according to the invention a nozzle disc (14) having a nozzle bore or nozzle mouth (15) of predetermined cross-section can be inserted, for example screwed, exchangeably into the inlet channel (1) and/or the outlet channel (2), and the diameter D (in mm) of the nozzle bore (15) can be so fixed as a function of the lower limit R1 (in litres of water per minute) of the measuring range that the diameter D increases with an increase of the ratio V = R1/D, V assuming a value of approximately 0.075 litres of water/mm.min when the diameter D is approximately 1.25 mm and assuming a value of approximately 0.3 litres of water/mm.min when the diameter is approximately 20 mm. <IMAGE>
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/492,327 US5099699A (en) | 1987-10-07 | 1990-03-12 | Flow indicator or flowmeter |
US07/492,327 | 1990-03-12 | ||
DE19904028780 DE4028780C2 (en) | 1990-03-12 | 1990-09-11 | Flow indicator or flowmeter |
DEP4028780.7 | 1990-09-11 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2037993A1 true CA2037993A1 (en) | 1991-09-13 |
CA2037993C CA2037993C (en) | 2000-11-21 |
Family
ID=25896759
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002037993A Expired - Lifetime CA2037993C (en) | 1990-03-12 | 1991-03-11 | Flow indicator or flowmeter |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0447811B1 (en) |
AT (1) | ATE170286T1 (en) |
CA (1) | CA2037993C (en) |
FI (1) | FI103433B1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1103912C (en) * | 2000-03-31 | 2003-03-26 | 叶承业 | Intelligent flowmeter |
US9285254B2 (en) | 2012-07-02 | 2016-03-15 | Digmesa Ag | Flowmeter |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH699590A2 (en) | 2008-09-22 | 2010-03-31 | Schwanden Kunststoff | Flowmeter for liquids. |
WO2012126519A1 (en) * | 2011-03-22 | 2012-09-27 | Gardena Manufacturing Gmbh | Apparatus for measuring a water flow using a turbine arrangement, which contains a turbine housing assembled from two identical housing parts |
CN104568029A (en) * | 2014-12-09 | 2015-04-29 | 宁波图兰多电器有限公司 | Electronic flow meter |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3733862A1 (en) * | 1987-10-07 | 1989-04-27 | Klaus Dipl Ing Kobold | FLOW DISPLAY OR MEASURING DEVICE |
-
1991
- 1991-02-19 EP EP91102306A patent/EP0447811B1/en not_active Expired - Lifetime
- 1991-02-19 AT AT91102306T patent/ATE170286T1/en not_active IP Right Cessation
- 1991-02-28 FI FI911008A patent/FI103433B1/en active
- 1991-03-11 CA CA002037993A patent/CA2037993C/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1103912C (en) * | 2000-03-31 | 2003-03-26 | 叶承业 | Intelligent flowmeter |
US9285254B2 (en) | 2012-07-02 | 2016-03-15 | Digmesa Ag | Flowmeter |
Also Published As
Publication number | Publication date |
---|---|
CA2037993C (en) | 2000-11-21 |
FI911008A0 (en) | 1991-02-28 |
FI911008A (en) | 1991-09-13 |
FI103433B (en) | 1999-06-30 |
FI103433B1 (en) | 1999-06-30 |
EP0447811B1 (en) | 1998-08-26 |
ATE170286T1 (en) | 1998-09-15 |
EP0447811A1 (en) | 1991-09-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed | ||
MKEC | Expiry (correction) |
Effective date: 20121202 |