GB756470A - Improvements in or relating to the control of rate of flow of air or other gases - Google Patents
Improvements in or relating to the control of rate of flow of air or other gasesInfo
- Publication number
- GB756470A GB756470A GB634/54A GB63454A GB756470A GB 756470 A GB756470 A GB 756470A GB 634/54 A GB634/54 A GB 634/54A GB 63454 A GB63454 A GB 63454A GB 756470 A GB756470 A GB 756470A
- Authority
- GB
- United Kingdom
- Prior art keywords
- conduit
- valve
- venturi
- diaphragm
- cabin
- 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
- 239000007789 gas Substances 0.000 title 1
- 230000002441 reversible effect Effects 0.000 abstract 2
- 238000011144 upstream manufacturing Methods 0.000 abstract 2
- 238000001816 cooling Methods 0.000 abstract 1
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D13/00—Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space, or structural parts of the aircraft
- B64D13/02—Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space, or structural parts of the aircraft the air being pressurised
-
- 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
-
- 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
- G01F1/34—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 by measuring pressure or differential pressure
- G01F1/36—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 by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction
- G01F1/38—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 by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction the pressure or differential pressure being measured by means of a movable element, e.g. diaphragm, piston, Bourdon tube or flexible capsule
Landscapes
- Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- Aviation & Aerospace Engineering (AREA)
- Control Of The Air-Fuel Ratio Of Carburetors (AREA)
Abstract
756,470. Automatic flow control systems. TEDDINGTON AIRCRAFT CONTROLS, Ltd. Jan. 8, 1954, No. 634/54. Class 38 (4). To maintain a constant airflow to a pressurized aircraft cabin a venturi is inserted in a conduit supplying the cabin from a jet engine driven compressor and a reversible electric servomotor operating a valve in the conduit is automatically controlled in dependence on the position of a diaphragm differentially responsive to the pressures in the throat and upstream of the venturi. , In Fig. 1 one side of the diaphragm 4 is subjected to the throat pressure through a conduit 3 while the other side is subjected to the upstream pressure through a conduit 2. A restrictor valve 7 and a bleed valve 6 are associated with conduits 2 and 3 to facilitate adjustment of the rate of flow, e.g. to regulate cabin temperature. Restrictor valve 7 is preset and bleed valve 6 is cam operated by a reversible electric motor controlled by a thermostat operating a change-over switch. The system may be arranged to increase airflow and hence reduce cabin temperature if a temperature lower than that corresponding to maximum cooling of the airstream is required. A single unit embodying valves 6 and 7 for coupling between the venturi and the diaphragm is described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB634/54A GB756470A (en) | 1954-01-08 | 1954-01-08 | Improvements in or relating to the control of rate of flow of air or other gases |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB634/54A GB756470A (en) | 1954-01-08 | 1954-01-08 | Improvements in or relating to the control of rate of flow of air or other gases |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB756470A true GB756470A (en) | 1956-09-05 |
Family
ID=9707790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB634/54A Expired GB756470A (en) | 1954-01-08 | 1954-01-08 | Improvements in or relating to the control of rate of flow of air or other gases |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB756470A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109625287A (en) * | 2018-11-29 | 2019-04-16 | 中国航空工业集团公司沈阳飞机设计研究所 | A kind of aircraft cockpit and equipment compartment both air flow modulation method and system |
-
1954
- 1954-01-08 GB GB634/54A patent/GB756470A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109625287A (en) * | 2018-11-29 | 2019-04-16 | 中国航空工业集团公司沈阳飞机设计研究所 | A kind of aircraft cockpit and equipment compartment both air flow modulation method and system |
| CN109625287B (en) * | 2018-11-29 | 2022-04-01 | 中国航空工业集团公司沈阳飞机设计研究所 | Method and system for adjusting air flow of aircraft cabin and equipment cabin |
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