JPS5773624A - Prevention device for leakage of twin rotor type flow meter - Google Patents
Prevention device for leakage of twin rotor type flow meterInfo
- Publication number
- JPS5773624A JPS5773624A JP14954180A JP14954180A JPS5773624A JP S5773624 A JPS5773624 A JP S5773624A JP 14954180 A JP14954180 A JP 14954180A JP 14954180 A JP14954180 A JP 14954180A JP S5773624 A JPS5773624 A JP S5773624A
- Authority
- JP
- Japan
- Prior art keywords
- rotors
- magnet
- case
- leakage
- gap
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F3/00—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow
- G01F3/02—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow with measuring chambers which expand or contract during measurement
- G01F3/04—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow with measuring chambers which expand or contract during measurement having rigid movable walls
- G01F3/06—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow with measuring chambers which expand or contract during measurement having rigid movable walls comprising members rotating in a fluid-tight or substantially fluid-tight manner in a housing
- G01F3/10—Geared or lobed impeller meters
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
PURPOSE:To reduce a fluid leaking from a gap between the counter surfaces of rotors and a case, by forming grooves and small bottomed holes for labyrinth effect in the counter surfaces of the rotors and case. CONSTITUTION:In a case 1, oval gear type rotors 4 and 5 are fitted around fixed shafts 2 and 3, and through a magnet 9 fitted atop of a rotation transmitting-out shaft 8 stuck to the rotor 5, a magnet 10 coupling magnetically with the magnet 9, a rotary frame 11, a speed reduction machine 12, the quantity of flow is displayed on an indication device 13. Further, many grooves 18 are made successively in the axial flanks of the rotors 4 and 5 and then from a high-pressure side intake 14 to a low-pressure side outlet 16 expands rapidly to lose its energy by Labyrinth effect which provides a pressure drop, thus reducing the leakage of the fluid from the gap.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14954180A JPS5773624A (en) | 1980-10-24 | 1980-10-24 | Prevention device for leakage of twin rotor type flow meter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14954180A JPS5773624A (en) | 1980-10-24 | 1980-10-24 | Prevention device for leakage of twin rotor type flow meter |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5773624A true JPS5773624A (en) | 1982-05-08 |
Family
ID=15477392
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14954180A Pending JPS5773624A (en) | 1980-10-24 | 1980-10-24 | Prevention device for leakage of twin rotor type flow meter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5773624A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4911010A (en) * | 1988-08-12 | 1990-03-27 | Flowdata, Inc. | Fluid flowmeter |
JPH02176526A (en) * | 1988-09-16 | 1990-07-09 | Behr Ind Equip Inc | Electrostatically painting apparatus having optical type flow rate detection meter |
US4996888A (en) * | 1989-08-09 | 1991-03-05 | Flowdata, Inc. | Fluid flowmeter |
US5058709A (en) * | 1989-06-09 | 1991-10-22 | Joseph Vogele Ag | Device for the dosing of lubricants |
US5325715A (en) * | 1989-08-09 | 1994-07-05 | Flowdata, Inc. | Fluid flowmeter |
EP2018525A1 (en) * | 2006-05-12 | 2009-01-28 | Osakeyhtiö SKF Aktiebolag | Oval gear meter |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51121809A (en) * | 1975-04-18 | 1976-10-25 | Anretsuto:Kk | The improvement of a roots type rotor |
JPS51137106A (en) * | 1975-05-22 | 1976-11-26 | Anretsuto:Kk | Improvement of a roots-type rotor |
-
1980
- 1980-10-24 JP JP14954180A patent/JPS5773624A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51121809A (en) * | 1975-04-18 | 1976-10-25 | Anretsuto:Kk | The improvement of a roots type rotor |
JPS51137106A (en) * | 1975-05-22 | 1976-11-26 | Anretsuto:Kk | Improvement of a roots-type rotor |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4911010A (en) * | 1988-08-12 | 1990-03-27 | Flowdata, Inc. | Fluid flowmeter |
JPH02176526A (en) * | 1988-09-16 | 1990-07-09 | Behr Ind Equip Inc | Electrostatically painting apparatus having optical type flow rate detection meter |
US5058709A (en) * | 1989-06-09 | 1991-10-22 | Joseph Vogele Ag | Device for the dosing of lubricants |
US4996888A (en) * | 1989-08-09 | 1991-03-05 | Flowdata, Inc. | Fluid flowmeter |
US5325715A (en) * | 1989-08-09 | 1994-07-05 | Flowdata, Inc. | Fluid flowmeter |
EP2018525A1 (en) * | 2006-05-12 | 2009-01-28 | Osakeyhtiö SKF Aktiebolag | Oval gear meter |
EP2018525A4 (en) * | 2006-05-12 | 2013-02-20 | Osakeyhtioe Skf Aktiebolag | Oval gear meter |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1365563A (en) | Rotary piston compressors with liquid injection | |
JPS5773624A (en) | Prevention device for leakage of twin rotor type flow meter | |
FR2704617B1 (en) | SEALING FOR ROTATING SHAFT. | |
GB1464441A (en) | Rotary fluid flow meter | |
GB1229488A (en) | ||
GB1481911A (en) | Hydraulic device with rotor seal | |
CN201588879U (en) | Thrust bearing for a pressurizing device | |
CN203394839U (en) | Shaft mechanical sealing device of main cooling medium pump of nuclear power plant | |
JPS5644488A (en) | Two-shaft positive displacement rotary machine | |
GB1533527A (en) | Radial piston multiple pump | |
GB1461045A (en) | Gear pumps and motors | |
JPS55159366A (en) | Shaft seal device for axial flow machine | |
CA1222180A (en) | Internal gate rotary vane fluid meter with improved element geometry | |
CN212963506U (en) | Roots flowmeter with lubricant rotor automatically | |
CN213932681U (en) | Roots gas flowmeter | |
CN202971171U (en) | Gear pump | |
JPS5471410A (en) | A closed,no-oil-supply type screw compressor | |
Zhang et al. | Analysis of external gear pump failure | |
GB1127602A (en) | Improvements in or relating to gear pumps | |
CN2345957Y (en) | Tri-rotor flowmeter with autogeny power source and automatic lubricating | |
CN113803248A (en) | Single-cylinder rotor pump with rotary one-way valve | |
CN118601876A (en) | Metering device for low viscosity liquids and method of use thereof | |
GB585041A (en) | Improvements in or relating to rotary pumping means | |
JPS55112893A (en) | Rotary vane pump | |
CN102926999B (en) | A kind of two internal thread air bag balance gear pump |