FR1508513A - Dispositif pour détecter une différence entre les vitesses de fluides, et ses applications - Google Patents
Dispositif pour détecter une différence entre les vitesses de fluides, et ses applicationsInfo
- Publication number
- FR1508513A FR1508513A FR91382A FR91382A FR1508513A FR 1508513 A FR1508513 A FR 1508513A FR 91382 A FR91382 A FR 91382A FR 91382 A FR91382 A FR 91382A FR 1508513 A FR1508513 A FR 1508513A
- Authority
- FR
- France
- Prior art keywords
- velocities
- fluids
- applications
- detecting
- difference
- 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.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/02—Detecting the presence of frost or condensate
- F25D21/025—Detecting the presence of frost or condensate using air pressure differential detectors
-
- 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
- G01F1/68—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 thermal effects
- G01F1/684—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D11/00—Control of flow ratio
- G05D11/02—Controlling ratio of two or more flows of fluid or fluent material
- G05D11/13—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Defrosting Systems (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US522260A US3355904A (en) | 1966-01-21 | 1966-01-21 | Differential fluid velocity sensing |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1508513A true FR1508513A (fr) | 1968-01-05 |
Family
ID=24080140
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR91382A Expired FR1508513A (fr) | 1966-01-21 | 1967-01-17 | Dispositif pour détecter une différence entre les vitesses de fluides, et ses applications |
Country Status (4)
Country | Link |
---|---|
US (1) | US3355904A (fr) |
DE (1) | DE1551328A1 (fr) |
FR (1) | FR1508513A (fr) |
GB (1) | GB1159171A (fr) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3643457A (en) * | 1970-11-20 | 1972-02-22 | Westinghouse Electric Corp | Frost detector for refrigeration system |
US3726104A (en) * | 1971-02-12 | 1973-04-10 | Thermo King Corp | Refrigeration system defrost initiation apparatus |
US4191026A (en) * | 1977-02-14 | 1980-03-04 | Electric Power Research Institute, Inc. | Apparatus for defrosting low temperature heat exchanger |
GB8429904D0 (en) * | 1984-11-27 | 1985-01-03 | Barker George & Co Ltd | Temperature controls of refrigerated cabinets |
DE10315523A1 (de) * | 2003-04-04 | 2004-10-14 | BSH Bosch und Siemens Hausgeräte GmbH | Kältegerät mit adaptiver Abtauautomatik und Abtauverfahren dafür |
US20110302937A1 (en) * | 2009-03-17 | 2011-12-15 | Bujak Jr Walter E | Demand defrost for heat pumps |
KR102627972B1 (ko) * | 2018-02-23 | 2024-01-23 | 엘지전자 주식회사 | 냉장고 |
KR102614564B1 (ko) * | 2018-03-08 | 2023-12-18 | 엘지전자 주식회사 | 냉장고 및 그 제어방법 |
KR102521994B1 (ko) * | 2018-03-08 | 2023-04-17 | 엘지전자 주식회사 | 냉장고 |
KR102536378B1 (ko) * | 2018-03-26 | 2023-05-25 | 엘지전자 주식회사 | 냉장고 및 그 제어방법 |
KR102604129B1 (ko) * | 2018-03-26 | 2023-11-20 | 엘지전자 주식회사 | 냉장고 및 그 제어방법 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2319516A (en) * | 1941-11-28 | 1943-05-18 | Weaver Mfg Co | Gas flow indicator |
US2650496A (en) * | 1948-05-17 | 1953-09-01 | Phillips Petroleum Co | Fluid flowmeter with heated resistance bridge circuit |
FR1167377A (fr) * | 1957-03-01 | 1958-11-24 | Electro Chimie Soc D | Débitmètre différentiel |
GB904711A (en) * | 1959-01-02 | 1962-08-29 | Parnall & Sons Ltd | Improved means for de-frosting refrigerating apparatus |
GB975197A (en) * | 1962-04-12 | 1964-11-11 | Stone J & Co Ltd | Improvements relating to means for controlling the defrosting of refrigerating units |
US3187569A (en) * | 1962-10-22 | 1965-06-08 | Los Johannes | Mass flow meter |
-
1966
- 1966-01-21 US US522260A patent/US3355904A/en not_active Expired - Lifetime
- 1966-11-15 GB GB51179/66A patent/GB1159171A/en not_active Expired
-
1967
- 1967-01-17 DE DE19671551328 patent/DE1551328A1/de active Pending
- 1967-01-17 FR FR91382A patent/FR1508513A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB1159171A (en) | 1969-07-23 |
DE1551328A1 (de) | 1970-03-19 |
US3355904A (en) | 1967-12-05 |
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