FR839419A - Automatic damper for ventilation adjustment - Google Patents
Automatic damper for ventilation adjustmentInfo
- Publication number
- FR839419A FR839419A FR839419DA FR839419A FR 839419 A FR839419 A FR 839419A FR 839419D A FR839419D A FR 839419DA FR 839419 A FR839419 A FR 839419A
- Authority
- FR
- France
- Prior art keywords
- automatic damper
- ventilation adjustment
- ventilation
- adjustment
- damper
- 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
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/755—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity for cyclical variation of air flow rate or air velocity
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR839419T | 1937-12-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR839419A true FR839419A (en) | 1939-04-04 |
Family
ID=9299516
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR839419D Expired FR839419A (en) | 1937-12-08 | 1937-12-08 | Automatic damper for ventilation adjustment |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR839419A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3237399A (en) * | 1963-11-04 | 1966-03-01 | Universal Oil Prod Co | Means for regulating aspirated secondary air for exhaust gas conversion |
US4100938A (en) * | 1976-12-16 | 1978-07-18 | Wehr Corporation | Flow control unit for air distribution system |
-
1937
- 1937-12-08 FR FR839419D patent/FR839419A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3237399A (en) * | 1963-11-04 | 1966-03-01 | Universal Oil Prod Co | Means for regulating aspirated secondary air for exhaust gas conversion |
US4100938A (en) * | 1976-12-16 | 1978-07-18 | Wehr Corporation | Flow control unit for air distribution system |
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